Artificial Neural Network Based Backup Differential Protection of Generator-Transformer Unit
|
|
- Juliana Dickerson
- 5 years ago
- Views:
Transcription
1 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 rtifiil Neurl Network sed kup Differentil Protetion of Genertor-Trnsformer Unit H. lg nd D. N. Vishwkrm Deprtment of Eletril Engineering, Indin Institute of Tehnology (HU) Vrnsi, Vrnsi, Indi Emil: {hrish.lg.rs.eee, H. Nth Deprtment of Eletril nd Instrumenttion Engineering, Thpr University, Ptil, Indi Emil: The NN-sed lgorithms hve een suessfully implemented in mny pttern or signture reognition prolems, s they n detet helthy onditions of genertor nd trnsformer sed on reognizing their wve shpes, more preisely, y differentiting them from the fult urrent wve shpes [3]-[5]. In [6], Neurl Network Priniple omponent nlysis long with Rdil sis Funtion Neurl Networks is used s pttern lssifier. In other words, this tehnique mkes the deision sed on the urrent signture verifition whih is more urte thn trditionl hrmoni restrint sed tehniques used for the protetion of trnsformer. This tehnique ould produe the tripping signl in the event of internl fult within 5ms fter fult ourrene. Optiml Proilisti Neurl Network (PNN) used in [7] s the ore lssifier to disriminte etween inrush nd internl fult. Prtile Swrm Optimiztion is used to otin optiml smoothing ftor for PNN. PNN requires lrger storge for exemplr ptterns & it is more diffiult to trin owing to numeril diffiulties. new pproh sed on deision tree for disrimintion etween inrush nd internl fult with etter ury is presented in [8]. This method lims to tke proessing time of 0.0se ( yle) with lssifition ury of 97.77%. Similrly, NN sed tehniques hve een used for the protetion of genertor too. One suh sheme with simple NN is presented in [9] for sttor winding protetion. Three prllel NNs hve een used in this sheme for lssifying three different fult ses. nother suh sheme is presented in [0] where two seprte NNs re used for fult detetion nd fult lssifition. n dvned version of this method using fuzzy logi in omintion with NN is presented in []. In oth ses, fult wveforms re simulted using diret phse quntities method. prtil protetion sheme is implemented in [] with NN developed on digitl signl proessor (DSP). lthough the importne of omined/unit protetion systems hs een identified in lte nineties, very few hve rried out reserh on unit protetion systems sine then. hyrid protetion sheme is presented in [3] for the strt This pper presents the use of rtifiil Neurl Networks (NN) s pttern lssifier for the omined differentil protetion of genertor-trnsformer unit with n im to uild kup protetion system to improve the overll reliility of the system. The proposed neurl network model is trined nd tested with n effiient Resilient k propgtion (RPROP) lgorithm nd Geneti lgorithm. The results re then ompred. The neurl network model mkes the disrimintion etween operting onditions (like norml, mgnetizing inrush, overexittion onditions in trnsformer) nd internl fults in trnsformer nd genertor sed on the differentil urrent wveform ptterns. The proposed method is independent of mplitudes of the wveforms. Vrious norml nd internl fult onditions of the trnsformer nd genertor re simulted using tooloxes in MTL/SIMULINK in order to otin the differentil urrent dt used for the trining nd testing of the NN. Index Terms rtifiil neurl networks, differentil protetion, geneti lgorithm, pttern reognition, resilient k propgtion, unit protetion I. INTRODUTION Trnsformer nd genertor re the most essentil elements of the power system with their protetion importne. Sine lst three dedes, reserhers hve een working on this prtiulr topi nd rose to mny new methods ut mostly onentrted on individul protetion system. There re vrieties of protetive relys to provide relile nd seure trnsformer protetion, of whih the differentil relys re found to e more effetive [] in fult disrimintion thn the old hrmoni restrint tehniques. The differentil relys should e designed in mnner tht it does not ml-operte during mgnetizing inrush nd over exittion onditions of trnsformer. The inrush urrents generted fter fult lerne re lso to e onsidered, s in [], while designing the rely. Most of the methods follow deterministi pproh, relying on fixed threshold. Mnusript reeived Otoer 0, 04; revised Ferury, Interntionl Journl of Eletronis nd Eletril Engineering doi: 0.70/ijeee
2 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 out these inputs nd outputs is disussed in lter setions. protetion of genertor-trnsformer unit onsidering most of the fult types. This sheme is developed using three miroproessors sed on onventionl hrmoni restrint iruit method. This gve se ide for unit protetion systems. Lter, two NN sed tehniques were presented in [4], [5] in omintion with onventionl methods with fult detetion time of 0ms pproximtely. In oth ses, NN hd een trined with k propgtion lgorithm. ground fult unit protetion system is presented in [6] onsidering only the ground fults ourring in genertor. Mny of the proposed lgorithms produed good results in terms of ury. etter lgorithm n lwys improve the reliility of the protetion sheme. However, use of kup protetion system improves the reliility nd funtionlity of protetion devies. This pper presents model of deision system sed on NN onsidering the genertor-trnsformer unit s the proteted ojet. ll the internl fult onditions of trnsformer nd genertor hve een simulted to generte the required dtse for the trining of NN. lso, few ses of fults re generted using the method given in [0]. These ses re used only during testing of the networks. The developed NN hs een trined nd tested with RPROP nd Geneti lgorithm nd the results re ompred. During this proess, vrious rhitetures of NN hve een tested y vrying the numer of hidden neurons nd keeping the numer of input nd output neurons fixed. Detiled desription II. POWER SYSTEM SIMULTION FOR PTTERN GENERTION three-phse power system inluding 00MV, 3.8kV Genertor nd 00MV 3.8/3kV Δ-Yg Trnsformer long with 50 km trnsmission line hs een used to produe the required test nd trining ptterns. Fig. shows the sheme of the unit protetion system nd Fig. shows the power system model reted y mens of MTL Simulink softwre. Different types of fults re reted t different lotions. ll the genertor fults re ssumed to our t 00% of the sttor winding. lso, inrush urrent nd over exittion onditions re simulted t different voltge ngles nd with different lods. The generted wveforms re then smpled to feed the neurl networks to e tested with two different smpling rtes. Figure. Differentil protetion sheme of genertor - trnsformer unit Phse.0 Sutrt4 Tx Prim <Sttor voltge vd (pu)> Speed (pu) Vf (pu) Fult 3-Phse V-I Mesurement 3-Phse V-I Mesurement Fult T -i powergui Three-Phse Trnsformer (Two Windings) 00MV,50 HZ 3.8/3KV Fult3 Tx Phse Tx Phse Sutrt Tx Phse -i Disrete, Ts = 5e-06 s. Idiff_smpled V I T3 I Three-Phse 3-Phse V-I PI Setion Line Mesurement3 T4 Fult V T 3-Phse V-I Mesurement Tx Se Gx V & I 3 Phse Series olor RL Lod_50MW Lod HTG vref Synhronous Mhine vd Vf 00 MV 3.8 kv vq vst Exittion System Tx Prim V I V I T V-I Mesure m Vf_ 0 sp T5 Pm olor Phse &W V I <Sttor urrent> <Output tive power Peo (pu)> sp Phse Idiff4 <Rotor speed wm (pu)> wref Pref Pm we Pe0 gte dw Sutrt6 I (pu) <Rotor speed devition dw (pu)> 5 MW <Sttor voltge vq (pu)> Gin Tx_Idiff 7 i - 8 Sutrt i - -i 6 Sutrt3 9 i - Figure. Simulted three-phse power system model III. finl onfigurtion with gol of mximum ury. Keeping the numer of outputs fixed t, the numer of input neurons nd the numer of hidden neurons re vried on tril nd error sis until it produed minimum error. Two onfigurtions re finlized for testing fter NEURL NETWORK DESIGN ND SIMULTION The first step to formulte the prolem is identifition of proper input nd output set. Vrious rhitetures nd omintion of input sets were ttempted to rrive t the 05 Interntionl Journl of Eletronis nd Eletril Engineering 483
3 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 mny trils, NN, 30-- neurons nd NN, For NN, eh of the differentil urrents (of eh phse) is typilly represented in disrete form s set of 0 uniformly sped (in time) smples otined over dt window of one yle i.e. t the smpling frequeny of 000Hz. For NN, set of 6 smples re otined over dt window of one yle i.e. t the smpling frequeny of 800Hz. These smples re used for trining nd testing the developed neurl networks. oth the proposed NNs generte outputs to represent 4 lssifitions s shown in Tle I. The si rhiteture of the NN is shown in Fig. 3. TLE I. Figure 3. NN rhiteture TRGET OUTPUT SES OF THE NN O O Output se 0 0 Norml 0 Trnsformer Inrush 0 Trnsformer Over Exittion Internl Fult in Trnsformer/Genertor IV. NN TRINING LGORITHMS. Resilient kpropgtion (RPROP) lgorithm Resilient kpropgtion is modifition of the ordinry grdient desent k-propgtion. To overome the inherent disdvntges of pure grdient-desent, Resilient kpropgtion (RPROP). This lgorithm ws pioneered y Mrtin Riedmiller [7]. The si priniple of RPROP is to eliminte the hrmful influene of the size of the prtil derivtive on the weight step. s onsequene, only sign of the derivtive is onsidered to indite the diretion of the weight updte ut not the mgnitude. The updte vlue for eh weight nd is is inresed y ftor Δ whenever the derivtive of the performne funtion with respet to tht weight hs the sme sign for two suessive itertions. The updte vlue is deresed y ftor Δ whenever the derivtive with respet to tht weight hnges sign from the previous itertion. If the derivtive is zero, then the updte vlue remins the sme. Whenever the weights re osillting, the weight hnge will e redued. In suh se, the updte vlue Δ ij is deresed y ftor η. If the derivtive retins its sign, the updte vlue is slightly inresed in order to elerte onvergene in shllow regions. This is shown in mthemtil form y () nd () [7]. The size of the weight hnge is exlusively determined y Et () ij ( t), if 0 wij Et () wij ( t) ij ( t), if 0 wij 0, else It should e noted, tht y repling the Δ ij y onstnt updte-vlue Δ, () yields the so-lled Mnhttn -updte rule. The seond step of RPROP lerning is to determine the new updte-vlues Δ ij (t). E( t ) E( t) ij ( t ), if * 0 wij wij E( t ) E( t) ij ( t) ij ( t ), if * 0 wij wij ij ( t ), else where 0<η <<η RPROP is generlly muh fster thn the stndrd steepest desent lgorithm s it onverges quikly nd it is sid to e the est trining lgorithm for pttern reognition & lssifition prolems [8].. G sed Trining of NN The geneti lgorithm (G) is well known optimiztion tehnique sed on the priniples of genetis nd nturl seletion nd doesn t require derivtive informtion for optimiztion. Unlike k propgtion lgorithm, it provides glol minim of optimiztion funtion. In the proposed method, G hs een used for finding weights nd ises of rtifiil Neurl Network. Then the next prt is to define fitness funtion whih n e used s n evlution funtion to optimize the weight set. The fitness funtion used here is men squre error (MSE), whih hs een otined y pplying ll trining sets (Input nd Trget) for eh weight set in the popultion. The lgorithm of fitness funtion used with G is given elow. { Let (I i, T i ), i=,, N, where I i =(I i, I i I li ) nd T i =(T i, T i, T ni ) represents the input-output pirs of the prolem to e solved y NN with onfigurtion l-m-n. For eh hromosome i =,, p elonging to the urrent popultion P i whose size is p { Extrt weights nd ises from i Keeping theses weights nd ises setting trin the NN for N input instnes; () () 05 Interntionl Journl of Eletronis nd Eletril Engineering 484
4 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 lulte error E i for eh input instne using E i =T ji - O ji ; where Oi is the output vetor lulted y NN; Find root men squre MSE of the errors E i, i=,, N } Output fitness vlue F=MSE; }. Trining nd Testing of NN oth the NNs re trined seprtely with oth ove lgorithms. During RPROP sed trining, 0% sets of totl smples re used for vlidtion nd nother 0% re used for testing purpose. During G sed trining, the NN is trined y optimizing the weights nd ises of the network to minimize MSE. The totl numer of vriles is lulted s given elow. No. of vriles = input weights input ises lyer weights lyer ises =(I*H) H (H*O) O =(I O )*H O where I = No. of inputs; H = No. of Hidden neurons; O= No. of outputs. One the trining proess is ompleted the network is redy for testing. The network is then fed with new smples tht re not used for trining. For this purpose few test ses of genertor hve een developed using the diret phse quntities method given in [0]. For trnsformer fult ses, dtse is reted in MTL only. of fult, i.e., out 0ms for NN nd out 3ms for NN. This time is lulted sed on the numer of the smple t whih the NN produe vlue ove 0.98 t the output for trget vlue of fter the first smple of the fult wve is fed to it. lthough the results re not very good when the method is pplied s primry protetion system, the results n e onsidered stisftory when this system is used s kup protetion unit, whih generlly opertes fter some dely from the primry protetion unit. NN rhiteture TLE II. PERFORMNE ERRORS OF OTH NNS RPROP Trined NN est Performne Error G trined NN NN rhiteture TLE III. TRINING TIMES Time tken for trining (minutes) RPROP Trined NN G trined NN V. NETWORK PERFORMNE ND NUMERIL RESULTS The designed NN hs een trined nd tested with Resilient k Propgtion (RPROP) lgorithm nd Geneti lgorithm (G). The grphil representtions of the trining errors for oth rhitetures re given in Fig. 4-Fig. 7. Tle II shows the performne errors for ll ses. s one n find from these results, the RPROP lgorithm produed etter results thn G with the present network rhiteture. Further, NN with 30 inputs (hlf yle dt) give less error thn the NN with 48 inputs (full yle dt). However, further deresing the inputs didn t produe good results s the dt less thn hlf yle is insuffiient to reprodue the required wve shpe to tke the deision. Tle III gives the time tken for trining in eh se. prt from etter ury, RPROP took very less time for trining when ompred to G s it onverges quikly. The trining time lso depends on the proessor used in the P. Present methods re implemented on the ltest Intel ore i7 proessor sed system. To further inrese the trining speed of the G lgorithm, prllel proessing tehnology hs een used with the help of prllel proessing toolox ville in MTL. This llows G to use est speed of multi-ore tehnology of the proessor. The Intel i7 proessor hs 8 ores whih n e used in lusters or workers mode. It is worth mentioning tht oth lgorithms (RPROP nd G) tke lmost sme time to detet the ourrene Figure 4. Performnes of 30-- NN trined with RPROP Figure 5. Performnes of 30-- NN trined with G 05 Interntionl Journl of Eletronis nd Eletril Engineering 485
5 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 Figure 6. Performnes of 48-- NN trined with RPROP Figure 7. Performnes of 48-- NN trined with G VI. ONLUSION In this pper, n rtifiil neurl network sed pttern reognition method hs een presented for the kup protetion of Genertor-Trnsformer unit. fter mny trils, two topologies of the network re finlized, one with hlf yle dt input nd the other with full yle dt input fed in moving window formt. oth topologies re trined seprtely with Resilient kpropgtion lgorithm (RPROP) nd Geneti lgorithm (G) for ll the possile ses of simulted dt under different operting onditions of trnsformer nd genertor. fter ompring the results, it is found tht the NN with hlf yle dt input is found more suitle thn the remining 3 omintions in terms of ury, trining speed, preision nd speed in fult detetion. The RPROP sed pttern reognition method is effiient in solving lssifition prolems nd differentil rely n e onsidered s lssifier whih identifies wht kind of event ours on the power system network. REFERENES [] M. Hi nd M. Mrin, omprtive nlysis of digitl relying lgorithms for the differentil protetion of three phse trnsformers, IEEE Trns. Power Syst., vol. 3, no. 3, pp , 988. []. Wiszniewski, W. Reiznt, nd L. Shiel, New lgorithms for power trnsformer inter-turn fult protetion, Eletr. Power Syst. Res., vol. 79, no. 0, pp , Ot [3] M. R. Zmn nd M.. Rhmn, Experimentl testing of the rtifiil neurl network sed protetion of power trnsformers, IEEE Trns. Power Deliv., vol. 3, no., pp , pr [4] Z. Morvej nd D. Vishwkrm, NN-sed hrmoni restrint differentil protetion of power trnsformer, Journl-Institution Eng. Indi Prt EL Eletr. Eng. Div., vol. 84, pp. -6, 003. [5] E.. Segtto nd D. V. oury, differentil rely for power trnsformers using intelligent tools, IEEE Trns. Power Syst., vol., no. 3, pp. 54-6, ug [6] M. Tripthy, Power trnsformer differentil protetion using neurl network prinipl omponent nlysis nd rdil sis funtion neurl network, Simul. Model. Prt. Theory, vol. 8, no. 5, pp , My 00. [7] M. Tripthy, R. P. Mheshwri, nd H. K. Verm, Power trnsformer differentil protetion sed on optiml proilisti neurl network, IEEE Trns. Power Deliv., vol. 5, no., pp. 0-, Jn. 00. [8] S. R. Smntry nd P. K. Dsh, Deision tree sed disrimintion etween inrush urrents nd internl fults in power trnsformer, Int. J. Eletr. Power Energy Syst., vol. 33, no. 4, pp , My 0. [9]. Tl, H.. Drwish, nd T.. Kwdy, NN-sed novel fult detetor for genertor windings protetion, IEEE Trns. Power Deliv., vol. 4, no. 3, pp , Jul [0]. I. Meghed nd O. P. Mlik, n rtifiil neurl network sed digitl differentil protetion sheme for synhronous genertor sttor winding protetion, IEEE Trns. Power Deliv., vol. 4, no., pp , 999. []. hlj, R. P. Mheshwri, S. Nem, nd H. K. Verm, Neuro- Fuzzy-sed sheme for sttor winding protetion of synhronous genertor, Eletr. Power omponents Syst., vol. 37, no. 5, pp , pr [] H.. H.. Drwish,.-M. I.. I. Tl, nd T.. T.. Kwdy, Development nd implementtion of n NN-sed fult dignosis sheme for genertor winding protetion, IEEE Trns. Power Deliv., vol. 6, no., pp. 08-4, pr. 00. [3] I. Korsiewiz, miroproessor sed protetive system for genertor-trnsformer units, in Pro. The Fourth Interntionl onferene on Developments in Power Protetion., 989, pp [4]. Hlink nd M. Szewzyk, NN sed detetion of eletril fults in genertor-trnsformer units, in Pro. The Eighth IEE Interntionl onferene on Developments in Power System Protetion, 004, vol. 004, pp [5] Y. Lu, L. Li, nd G. Tng, Neurl network sed genertortrnsformer protetion, in Pro. 004 Interntionl onferene on Mhine Lerning nd yernetis, 004, vol. 7, pp [6] M. Zielihowski nd T. Szlezk, new digitl ground-fult protetion system for genertor-trnsformer unit, Eletr. Power Syst. Res., vol. 77, no. 0, pp , ug [7] M. Riedmiller nd H. run, diret dptive method for fster kpropgtion lerning: The RPROP lgorithm, in Pro. Interntionl onferene on Neurl Networks, Sn Frniso, 993, pp [8] M. Shilee,. hndr, nd P. K. Klr, Lerning of geometri men neuron model using resilient propgtion lgorithm, Expert Syst. ppl., vol. 37, no., pp , De. 00. Hrish lg is urrently ssistnt Professor t GMRIT, Rjm. He hs sumitted his Ph.D. thesis t the Indin Institute of Tehnology (HU) Vrnsi, Indi. He otined his.e. (Eletronis nd Instrumenttion Engineering) from ndhr University nd M.Teh (ontrol Systems) from the Ntionl Institute of Tehnology Kurukshetr, Indi. His re of reserh interest is pplitions of Miroomputers nd rtifiil Intelligene to Power Systems. He hs ontriuted reserh ppers in IEEE nd other Interntionl onferenes. He is student memers of IET nd IEEE. 05 Interntionl Journl of Eletronis nd Eletril Engineering 486
6 Interntionl Journl of Eletronis nd Eletril Engineering Vol. 3, No. 6, Deemer 05 Hrshit Nth is presently finl yer student of E in Eletril Engineering t Thpr University, Ptil, Indi. He hs undergone prtil internship trining t HVD k to k Susttion of Power Grid orportion of Indi. His re of reserh interest is pplitions of Miroomputers nd rtifiil Intelligene to Power Systems. He hs worked on pplitions of rtifiil Intelligene to Power System Protetion t IIT (HU), Vrnsi during summer vtions. He hs ontriuted reserh ppers in IEEE nd other Interntionl onferenes. He is student memers of IET nd IEEE. Devendr Nth Vishwkrm is urrently Professor of Eletril Engineering t the Indin Institute of Tehnology (HU) Vrnsi, Indi. He otined his.s. (Engineering), M.S. (Engineering) nd Ph.D. from Ptn University, Ptn. He hd erlier served s ssoite professor of eletril engineering t the ihr ollege of Engineering, Ptn (Presently Ntionl Institute of Tehnology Ptn). He hs tehing nd reserh experiene of over 35 yers nd hs ontriuted out 65 ppers to vrious ntionl nd interntionl journls nd onferenes. He is outhor of the ook, Power System Protetion nd Swithger pulished y MGrw Hill edution (Indi) privte limited. He is senior memer of IEEE (US), fellow of the Institution of Engineers (Indi) nd fellow of the Institution of Eletronis nd Teleommunition Engineers. 05 Interntionl Journl of Eletronis nd Eletril Engineering 487
VOLTAGE SAG IMPROVEMENT BY PARTICLE SWARM OPTIMIZATION OF FUZZY LOGIC RULE BASE
VOL., NO. 7, PRIL 206 ISSN 89-6608 RPN Journl of Engineering nd pplied Sienes 2006-206 sin Reserh Pulishing Network (RPN). ll rights reserved. VOLTGE SG IMPROVEMENT Y PRTILE SWRM OPTIMIZTION OF FUZZY LOGI
More informationTRANSIENT VOLTAGE DISTRIBUTION IN TRANSFORMER WINDING (EXPERIMENTAL INVESTIGATION)
IJRET: Interntionl Journl of Reserh in Engineering nd Tehnology ISSN: 2319-1163 TRANSIENT VOLTAGE DISTRIBUTION IN TRANSFORMER WINDING (EXPERIMENTAL INVESTIGATION) Knhn Rni 1, R. S. Goryn 2 1 M.teh Student,
More informationImproved sensorless control of a permanent magnet machine using fundamental pulse width modulation excitation
Pulished in IET Eletri Power Applitions Reeived on 19th April 2010 Revised on 27th July 2010 doi: 10.1049/iet-ep.2010.0108 Improved sensorless ontrol of permnent mgnet mhine using fundmentl pulse wih modultion
More informationDigital Simulation of an Interline Dynamic Voltage Restorer for Voltage Compensation
JOURNL OF ENGINEERING RESERH ND TEHNOLOGY, VOLUME 1, ISSUE 4, DEEMER 214 Digitl Simultion of n Interline Dynmi Voltge Restorer for Voltge ompenstion Dr.P.Ush Rni R.M.D.Engineering ollege, henni, pushrni71@yhoo.om
More informationComparison of Minimising Total Harmonic Distortion with PI Controller, Fuzzy Logic Controller, BFO- fuzzy Logic Controlled Dynamic Voltage Restorer
Interntionl Journl of Eletroni nd Eletril Engineering. ISSN 974-274, Volume 7, Numer 3 (24), pp. 299-36 Interntionl Reserh Pulition House http://www.irphouse.om omprison of Minimising Totl Hrmoni Distortion
More informationGenetically Tuned STATCOM for Voltage Control and Reactive Power Compensation
Interntionl Journl of omputer Theory nd Engineering, Vol. 2, No. 3, June, 2 793-82 Genetilly Tuned STTOM for Voltge ontrol nd Retive Power ompenstion Nveen Goel, R.N. Ptel, Memer, IEEE, Sji T. hko strt
More informationSimulation of a zero-sequence relay for a distribution network with EMTP-RV Discrimination between fault current and magnetizing inrush current
imultion of zero-sequene rely for distriution network with MTP-RV Disrimintion etween fult urrent nd mgnetizing inrush urrent M. Petit, P. Bstrd Astrt-- The zero-sequene relys re widely used to protet
More informationSLOVAK UNIVERSITY OF TECHNOLOGY Faculty of Material Science and Technology in Trnava. ELECTRICAL ENGINEERING AND ELECTRONICS Laboratory exercises
SLOVAK UNIVERSITY OF TECHNOLOGY Fulty of Mteril Siene nd Tehnology in Trnv ELECTRICAL ENGINEERING AND ELECTRONICS Lbortory exerises Róbert Riedlmjer TRNAVA 00 ELECTRICAL ENGINEERING AND ELECTRONICS Lbortory
More informationA Development of Embedded System for Speed Control of Hydraulic Motor
AISTPME (2011) 4(4): 35-39 A Development of Embedded System for Speed Control of Hydruli Motor Pornjit P. Edutionl Mehtronis Reserh Group Deprtment of Teher Trining in Mehnil Engineering, KMUTN, ngkok,
More informationProbability and Statistics P(A) Mathletics Instant Workbooks. Copyright
Proility nd Sttistis Student Book - Series K- P(A) Mthletis Instnt Workooks Copyright Student Book - Series K Contents Topis Topi - Review of simple proility Topi - Tree digrms Topi - Proility trees Topi
More informationThe PWM switch model introduced by Vatché Vorpérian in 1986 describes a way to model a voltage-mode switching converter with the VM-PWM switch model.
The PWM swith model introdued by Vthé Vorpérin in 1986 desribes wy to model voltge-mode swithing onverter with the VM-PWM swith model. The lrge-signl model is equivlent to d trnsformer whose turns rtio
More informationAdaptive Droop Control Shunt Active Filter and Series AC Capacitor Filter for Power Quality Improvement in Power System
ville online t: http://www.ijmtst.om/neeses17.html Speil Issue from nd Ntionl onferene on omputing, Eletril, Eletronis nd Sustinle Energy Systems, 6 th 7 th July 17, Rjhmundry, Indi dptive Droop ontrol
More informationResistors, Current and Voltage measurements, Ohm s law, Kirchhoff s first and second law. Kirchhoff s first Objectives:
EE -050 Ciruit L Experiment # esistors, Current nd Voltge mesurements, Ohm s lw, Kirhhoff s first nd seond lw. Kirhhoff s first Ojetives: Slmn in Adul Aziz University Eletril Engineering Deprtment. Fmiliriztion
More informationISM-PRO SOFTWARE DIGITAL MICROSCOPE OPERATION MANUAL
MN-ISM-PRO-E www.insize.om ISM-PRO SOFTWARE DIGITAL MICROSCOPE OPERATION MANUAL Desription Clik Next. As the following piture: ISM-PRO softwre is for ISM-PM00SA, ISM-PM600SA, ISM- PM60L digitl mirosopes.
More informationPerformance Investigation of SEPIC based Dynamic Voltage Restorer
T.Suneel, nd r. SN Gnesh / nterntionl Journl of New Tehnologies in Siene nd Engineering ol., ssue. 4, e. 4, SSN 349-78 Performne nvestigtion of SEP sed ynmi oltge Restorer T. SUNEEL ssistnt Professor eprtment
More informationMODELING OF SEPIC FED PMBLDC MOTOR FOR TORQUE RIPPLE MINIMIZATION
ODEING OF SEPIC FED PBDC OOR FOR ORQUE RIPPE INIIZAION N.kshmipriy.E.,Assistnt Professor Deprtment of EEE Jy Shrirm Group of Institution, irupur, Indi lkshmipriyme9@gmil.om S.nivel.E.,Assistnt Professor
More informationUnderstanding Three-Phase Transformers
PDH ourse E450 (4 PDH) Understnding Three-Phse Trnsformers Rlph Fehr, Ph.D., P.E. 2014 PDH Online PDH enter 5272 Medow Esttes Drive Firfx, V 22030-6658 Phone & Fx: 703-988-0088 www.pdhonline.org www.pdhenter.om
More informationSynchronised Measurement Technology for Analysis of Transmission Lines Faults
roeedings of the th Hwii Interntionl Conferene on System Sienes - Synhronised Mesurement Tehnology for nlysis of Trnsmission ines Fults Vldimir Terzij The University of Mnhester terzij@ieee.org Mlden Kezunovi
More informationTHe overall performance and the cost of the heating
Journl of Eletril Engineering Spe etor Modultion For Three Phse ndution Dieletri Heting Y B Shukl nd S K Joshi Deprtment of Eletril Engineering The M.S.University of Brod dodr, ndi, e-mil : yshukl@yhoo.om,
More informationApplication of Feed Forward Neural Network to Differential Protection of Turbogenerator
16th NATIONAL POWER SYSTEMS CONFERENCE, 15th-17th DECEMBER, 21 464 Appliction of Feed Forwrd Neurl Network to Differentil Protection of Turbogenertor Amrit Sinh Dept. of Electricl Engg., Ntionl Institute
More informationarxiv: v2 [cs.sy] 16 Nov 2012
IEEE Personl use of this mteril is permitted Permission from IEEE must e otined for ll other uses, in ny urrent or future medi, inluding reprinting/repulishing this mteril for dvertising or promotionl
More informationSwitching Algorithms for the Dual Inverter fed Open-end Winding Induction Motor Drive for 3-level Voltage Space Phasor Generation
S.Srinivs et l: Swithing Algorithms for the Dul Inverter fed... Swithing Algorithms for the Dul Inverter fed Open-end Winding Indution Motor Drive for 3-level Voltge Spe Phsor Genertion S. Srinivs nd V..
More informationThe Nottingham eprints service makes this work by researchers of the University of Nottingham available open access under the following conditions.
Remenyte-Presott, Rs nd Andrews, John (27) Prime implints for modulrised non-oherent fult trees using inry deision digrms. Interntionl Journl of Reliility nd Sfety, (4). pp. 446-464. ISSN 479-393 Aess
More informationMacroscopic and Microscopic Springs Procedure
Mrosopi nd Mirosopi Springs Proedure OBJECTIVE Purpose In this l you will: investigte the spring-like properties of stright wire, disover the strethiness of mteril, independent of the size nd shpe of n
More informationPatterns and Algebra
Student Book Series D Mthletis Instnt Workooks Copyright Series D Contents Topi Ptterns nd funtions identifying nd reting ptterns skip ounting ompleting nd desriing ptterns numer ptterns in tles growing
More informationPearson Education Limited Edinburgh Gate Harlow Essex CM20 2JE England and Associated Companies throughout the world
Person Edution Limited Edinurgh Gte Hrlow Essex M20 2JE Englnd nd ssoited ompnies throughout the world Visit us on the World Wide We t: www.personed.o.uk Person Edution Limited 2014 ll rights reserved.
More informationAbdominal Wound Closure Forceps
Inventor: Crlson, Mrk A. My 25, 2007 Adominl Wound Closure Foreps Astrt. The devie is modifition of stndrd tissue foreps for use during losure of dominl wounds mde for surgil proedure. The modifition onsists
More informationProposed Cable Tables for SAS2
Tle 50 Requirements for internl le ssemlies using SASDrive onnetors n kplnes. Requirement, Units 1,5 Gps 3Gps 6 Gps Bulk le or kplne:, Differentil impene ohm 100 ± 10 100 g Common-moe impene ohm 32,5 ±
More informationAnalog Input Modules
7 922 nlog Input odules G56... nlog input modules for the ontrol of SQ5... ir dmper tutors y ontinuous nlog ontrol signls, suh s 4...20 m, nd ontinuous nlog position feedk signls. For supplementry Dt Sheets,
More informationResearch Article Evaluation of Harmonic Content from a Tap Transformer Based Grid Connection System for Wind Power
Journl of Renewle Energy Volume 2013, rtile ID 190573, 8 pges http://dx.doi.org/10.1155/2013/190573 Reserh rtile Evlution of Hrmoni ontent from Tp Trnsformer sed Grid onnetion System for Wind Power S.
More informationAGA56... Analog Input Modules. Siemens Building Technologies HVAC Products
7 922 nlog Input odules G56... nlog input modules for the ontrol of SQ5... ir dmper tutors y ontinuous nlog ontrol signls, suh s 4...20 m, nd ontinuous nlog position feedk signls. For supplementry Dt Sheets,
More informationEvaluating territories of Go positions with capturing races
Gmes of No Chne 4 MSRI Pulitions Volume 63, 2015 Evluting territories of Go positions with pturing res TEIGO NAKAMURA In nlysing pturing res, or semeis, we hve een fousing on the method to find whih plyer
More informationCOMPUTER MODELLING OF FLICKER PROPAGATION
OMPUTER MODELLING OF FLIKER PROPGTION T.Keppler N.R.Wtson J.rrillg University of nterury hristhurh, New Zelnd n.wtson@ele.nterury..nz strt The time series of the voltges t the desired lotions re first
More informationDesign of Miniaturized 10 db Wideband Branch Line Coupler Using Dual Feed and T-Shape Transmission Lines
RADIOENGINEERING, VOL. 27, NO. 1, APRIL 2018 207 Design of Miniturized 10 db Widend Brnh Line Coupler Using Dul Feed nd T-Shpe Trnsmission Lines Mukesh KUMAR, SK. Nurul ISLAM, Goind SEN, Susnt Kumr PARUI,
More informationA Novel SVPWM Technology Used in PWM Rectifiers of WPGS
Reserh Journl of Applie Sienes, Engineering n Tehnology 5(1): 4-45, 13 ISSN: 4-7459; e-issn: 4-747 Mxwell Sientifi Orgniztion, 13 Sumitte: Otoer, 1 Aepte: Novemer 9, 1 Pulishe: April 3, 13 A Novel SPWM
More informationA New Control for Series Compensation of UPQC to Improve Voltage Sag/Swell
AUT Journl of Modeling nd Simultion AUT J. Model. Simul., 49()(7)7584 DOI:.6/misj.6.843 A New Control for Series Compenstion of to Improve oltge Sg/Swell M. Torin Esfhni, nd B. hidi Dept. of Eletril Engineering,
More informationINSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigal, Hyderabad
Hll Ticket No Question Pper Code: AEC009 INSTITUTE OF AERONAUTICAL ENGINEERING (Autonomous) Dundigl, Hyderd - 500 043 MODEL QUESTION PAPER Four Yer B.Tech V Semester End Exmintions, Novemer - 2018 Regultions:
More informationGLONASS PhaseRange biases in RTK processing
ASS PhseRnge ises in RTK proessing Gle Zyrynov Ashteh Workshop on GSS Bises 202 Bern Switzerlnd Jnury 8-9 202 Sope Simplified oservtion models for Simplified oservtion models for ASS FDMA speifi: lok nd
More information(1) Primary Trigonometric Ratios (SOH CAH TOA): Given a right triangle OPQ with acute angle, we have the following trig ratios: ADJ
Tringles nd Trigonometry Prepred y: S diyy Hendrikson Nme: Dte: Suppose we were sked to solve the following tringles: Notie tht eh tringle hs missing informtion, whih inludes side lengths nd ngles. When
More information2. Controlled Rectifiers
strt Interntionl Journl of dvned Tehnoloy & Enineerin Reserh (IJTER) www.ijter.om NLYSIS OF TOTL HRMONIS DISTORTION USING MULTIPULSE ONVERTER Hemnt Dhnuk nd Surh Gupt Deprtment of Eletril nd Eletronis
More informationALONG with the maturity of mobile cloud computing,
An Optiml Offloding Prtitioning Algorithm in Moile Cloud Computing Huming Wu, Dniel Seidenstüker, Yi Sun, Crlos Mrtín Nieto, Willim Knottenelt, nd Ktink Wolter system, nd their min gol is to keep the whole
More informationISSCC 2006 / SESSION 21 / ADVANCED CLOCKING, LOGIC AND SIGNALING TECHNIQUES / 21.5
21.5 A 1.1GHz Chrge-Recovery Logic Visvesh Sthe, Jung-Ying Chueh, Mrios Ppefthymiou University of Michign, Ann Aror, MI Boost Logic is chrge-recovery circuit fmily cple of operting t GHz-clss frequencies
More informationECE 274 Digital Logic Spring Digital Design. Combinational Logic Design Process and Common Combinational Components Digital Design
ECE 27 Digitl Logi Spring 29 Comintionl Logi Design Proess n Common Comintionl Components Digitl Design 2.7 2. Digitl Design Chpter 2: Comintionl Logi Design Slies to ompn the tetook Digitl Design, irst
More informationComparison of Geometry-Based Transformer Iron- Core Models for Inrush-Current and Residual-Flux Calculations
omprison of Geometry-Bsed Trnsformer Iron- ore Models for Inrush-urrent nd Residul-Flux lultions R. Yonezw, T. Nod Astrt--When trnsformer is energized, oltge drop is osered due to the inrush urrents. An
More informationDynamic analysis of inverter dominated unbalanced LV micro-grids
Dynmi nlysis of inverter dominted unlned LV miro-grids N. L. Soultnis, A. I. Tsouhniks, N. D. Htzirgyriou, J. Mhseredjin Astrt This pper presents simultion of the dynmi ehvior of low voltge miro-grids
More informationComparison of SVPWM and SPWM Techniques for Back to Back Converters in PSCAD
, 35 Otoer, 03, Sn Frniso, USA Comprison of SVPWM nd SPWM Tehniques for Bk to Bk Converters in PSCAD Agustin Hernndez, Ruen Tpi, Memer, IAENG, Omr Aguilr, nd Ael Gri Astrt This rtile presents the simultion
More informationBalancing Your Life. Ideas that might help you
Blning Your Life Ides tht might help you Pul Hoskin Summer 2007 Let s e honest if one lists off the responsiilities nd hoies tht eh of us hve nd ssigns weekly hourly time tht eh needs to e fulfilled, then
More informationIMPROVING THE RELIABILITY OF THREE PHASE INVERTER BASE ON CUK CONVERTER FOR PV APPLICATION
MPRONG TE RELABLTY OF TREE PASE NERTER BASE ON CUK CONERTER FOR P APPLCATON inyk Bhgwn Kshid M. Teh (Eletril Power System) Rjrmpu nstitute of Tehnology Mhrshtr, ndi Prof..T.Jdhv Deprtment of Eletril Engineering
More informationMultilevel Inverter with Less Number of Isolated dc Bus Voltages
Interntionl Journl of Engineering & ehnology IJE-IJENS ol: No: 8 Multileel Inerter with Less Numer of Isolted Bus oltges Mhrous E. Ahmed, Htim Ghzi M. Zini Fulty of Engineering, if Uniersity, KSA mehmed7@ieee.org
More informationLecture 16. Double integrals. Dan Nichols MATH 233, Spring 2018 University of Massachusetts.
Leture 16 Double integrls Dn Nihols nihols@mth.umss.edu MATH 233, Spring 218 University of Msshusetts Mrh 27, 218 (2) iemnn sums for funtions of one vrible Let f(x) on [, b]. We n estimte the re under
More informationSeamless Integration of SER in Rewiring-Based Design Space Exploration
Semless Integrtion of SER in Rewiring-Bsed Design Spe Explortion Soeeh Almukhizim* & Yiorgos Mkris Eletril Engineering Dept. Yle University New Hven, CT 62, USA Astrt Rewiring hs een used extensively for
More informationModeling and Control of a Six-Switch Single-Phase Inverter Christopher L. Smith. Electrical Engineering
Modeling nd Control of Six-Swith Single-Phse Inverter Christopher. Smith Thesis sumitted to the Fulty of the irgini Polytehni Institute nd Stte University in prtil fulfillment of the requirements for the
More informationCOMPUTER NETWORK DESIGN Network layer protocols
OMPUTER NETWORK ESIGN Network lyer protools Network lyer (lyer 3) Gruppo Reti TL nome.ognome@polito.it http://www.telemti.polito.it/ OMPUTER NETWORK ESIGN Review of network lyer protools - opyright This
More informationMixed CMOS PTL Adders
Anis do XXVI Congresso d SBC WCOMPA l I Workshop de Computção e Aplicções 14 20 de julho de 2006 Cmpo Grnde, MS Mixed CMOS PTL Adders Déor Mott, Reginldo d N. Tvres Engenhri em Sistems Digitis Universidde
More informationSection 6.1 Law of Sines. Notes. Oblique Triangles - triangles that have no right angles. A c. A is acute. A is obtuse
Setion 6.1 Lw of Sines Notes. Olique Tringles - tringles tht hve no right ngles h is ute h is otuse Lw of Sines - If is tringle with sides,, nd, then sin = sin = sin or sin = sin = sin The miguous se (SS)
More informationExercise 1-1. The Sine Wave EXERCISE OBJECTIVE DISCUSSION OUTLINE. Relationship between a rotating phasor and a sine wave DISCUSSION
Exercise 1-1 The Sine Wve EXERCISE OBJECTIVE When you hve completed this exercise, you will be fmilir with the notion of sine wve nd how it cn be expressed s phsor rotting round the center of circle. You
More informationPower Density and Efficiency Optimization of Resonant and Phase-Shift Telecom DC-DC Converters
Power Density nd Effiieny Optimiztion of Resonnt nd PhseShift Teleom DCDC Converters U. Bdstuener, J. Biel nd J. W. Kolr Power Eletroni Systems Lortory, ETH Zurih ETHZentrum, ETL H12, Physikstrsse 3 CH892
More informationNotre Dame Tasks. Activity since last Telecon (Feb 7, 2011)
Notre Dme Tsks tivity sine lst Teleon (Feb, ) Interfe Speifition beteen UWM/Dispth gent Frequeny estimtion simpoer omponent E-bord lod-shedding simpoer omponent Smrt-Sith simpoer omponent Single-phse Odyssin
More informationInteraction Analysis in Islanded Power Systems with HVDC Interconnections
3rd Interntionl Hyrid Power Systems Workshop Tenerife, Spin 8 9 My 218 Intertion Anlysis in Islnded Power Systems with HVDC Interonnetions Crlos Colldos-Rodríguez, Edurdo Prieto-Arujo, Mr Cheh-Mne, Rird
More informationRWM4400UH High Performance Hand Held Wireless Microphone System
CH 1 CH 2 CH 3 CH 4 UHF QUAD VOLUME MAX VOLUME MAX VOLUME MAX VOLUME RWM 4400UH MIN MIN MIN CHANNEL 1 CHANNEL 2 CHANNEL 3 CHANNEL 4 RWM4400UH High Performne Hnd Held Wireless Mirophone System OWNER S MANUAL
More informationURL: mber=
Wijnhoven, T.; Deonink, G., "Flexile fult urrent ontriution with inverter interfed distriuted genertion," in IEEE Power nd Energy Soiety Generl Meeting (PES), Vnouver, BC, Cnd, -5 July, 5 p. doi:.9/pesmg..66769
More informationMath Circles Finite Automata Question Sheet 3 (Solutions)
Mth Circles Finite Automt Question Sheet 3 (Solutions) Nickols Rollick nrollick@uwterloo.c Novemer 2, 28 Note: These solutions my give you the nswers to ll the prolems, ut they usully won t tell you how
More informationICL7116, ICL / 2 Digit, LCD/LED Display, A/D Converter with Display Hold. Description. Features. Ordering Information. Pinouts.
SEMICONDUCTOR ICL116, ICL11 August 199 3 1 / 2 Digit, LCD/LED Disply, A/D Converter with Disply Hold Fetures HOLD Reding Input Allows Indefinite Disply Hold Gurnteed Zero Reding for 0V Input True Polrity
More informationReduction of Harmonics & Improve Efficiency Using Multi Pulse Converter
Interntionl Journl of urrent Trends in Enineerin & Tehnoloy Volume: I, Issue: VII (Nov. De. 205) Redution of Hrmonis & Improve Effiieny Usin Multi Pulse onverter Hemnt Dhnuk, Prshnt Sinh 2, Surh Gupt 3
More informationDouble Integrals over Rectangles
Jim Lmbers MAT 8 Spring Semester 9- Leture Notes These notes orrespond to Setion. in Stewrt nd Setion 5. in Mrsden nd Tromb. Double Integrls over etngles In single-vrible lulus, the definite integrl of
More informationNotes on Spherical Triangles
Notes on Spheril Tringles In order to undertke lultions on the elestil sphere, whether for the purposes of stronomy, nvigtion or designing sundils, some understnding of spheril tringles is essentil. The
More informationTo Generate Rule for Software Defect Predication on Quantitative and Qualitative Factors using Artificial Neural Networks
Proeedings of Interntionl onferene on Intelligent Computtionl Systems To Generte Rule for Softwre Defet Predition on Quntittive nd Qulittive Ftors using Artifiil Neurl Networks Neh Gutm, Prvinder S. Sndhu,
More informationLATEST CALIBRATION OF GLONASS P-CODE TIME RECEIVERS
LATEST CALIBRATION OF GLONASS P-CODE TIME RECEIVERS A. Fos 1, J. Nwroci 2, nd W. Lewndowsi 3 1 Spce Reserch Centre of Polish Acdemy of Sciences, ul. Brtyc 18A, 00-716 Wrsw, Polnd; E-mil: fos@c.ww.pl; Tel.:
More informationNevery electronic device, since all the semiconductor
Proceedings of Interntionl Joint Conference on Neurl Networks, Orlndo, Florid, USA, August 12-17, 2007 A Self-tuning for Rel-time Voltge Regultion Weiming Li, Xio-Hu Yu Abstrct In this reserch, self-tuning
More informationDetection of Denial of Service attacks using AGURI
Detetion of Denil of Servie ttks using AGURI Ryo Kizki Keio Univ. kizki@sf.wide.d.jp Kenjiro Cho SonyCSL kj@sl.sony.o.jp Osmu Nkmur Keio Univ. osmu@wide.d.jp Astrt Denil of Servie ttks is divided into
More informationMAXIMUM FLOWS IN FUZZY NETWORKS WITH FUNNEL-SHAPED NODES
MAXIMUM FLOWS IN FUZZY NETWORKS WITH FUNNEL-SHAPED NODES Romn V. Tyshchuk Informtion Systems Deprtment, AMI corportion, Donetsk, Ukrine E-mil: rt_science@hotmil.com 1 INTRODUCTION During the considertion
More informationInstallation manual. Daikin Altherma LAN adapter BRP069A61 BRP069A62. Installation manual Daikin Altherma LAN adapter. English
Instlltion mnul Dikin Altherm LAN dpter BRP069A6 BRP069A6 Instlltion mnul Dikin Altherm LAN dpter English Tle of ontents Tle of ontents Aout the doumenttion. Aout this doument... Aout the produt. Comptiility....
More informationCritical Evaluation of FBD, PQ and CPT Power Theories for Three-Wire Power Systems
Critil Evlution of FBD, PQ nd CPT Power Theories for Three-Wire Power Systems Fernndo MARAFÃO Group of Automtion nd Integrting Systems, São Pulo Stte University Soro, São Pulo, 17-1, Brzil Helmo MORALES
More informationRECENT progress in fabrication makes the practical application. Logic Synthesis for Quantum Computing. arxiv: v1 [quant-ph] 8 Jun 2017
Logi Synthesis for Quntum Computing Mthis Soeken, Mrtin Roetteler, Nthn Wiee, nd Giovnni De Miheli rxiv:76.7v [qunt-ph] 8 Jun 7 Astrt Tody s rpid dvnes in the physil implementtion of quntum omputers ll
More informationTo provide data transmission in indoor
Hittite Journl of Science nd Engineering, 2018, 5 (1) 25-29 ISSN NUMBER: 2148-4171 DOI: 10.17350/HJSE19030000074 A New Demodultor For Inverse Pulse Position Modultion Technique Mehmet Sönmez Osmniye Korkut
More informationSAMPLE. End of term: TEST A. Year 4. Name Class Date. Complete the missing numbers in the sequences below.
End of term: TEST A You will need penil nd ruler. Yer Nme Clss Dte 2 Complete the missing numers in the sequenes elow. 50 25 00 75 8 30 3 28 2 9 Put irle round two of the shpes elow whih hve 3 shded. 3
More informationLow-Cost PWM Drive for an Electric Mini-Baja Type Vehicle
Proeedings of COBEM 2005 18th Interntionl Congress of Mehnil Engineering Low-Cost PWM Drive for n Eletri Mini-Bj Type Vehile Smuel E. de Luen UNESP - São Pulo Stte University, Gurtinguetá, Brzil luen@feg.unesp.br
More information& Y Connected resistors, Light emitting diode.
& Y Connected resistors, Light emitting diode. Experiment # 02 Ojectives: To get some hndson experience with the physicl instruments. To investigte the equivlent resistors, nd Y connected resistors, nd
More informationGENERAL NOTES USE OF DESIGN DATA SHEETS:
GENERL DT: TE FOLLOWING DT IS SSUMED: USE OF DT SEETS: ED INTERNL NGLE OF FRITION OF KFILL SOIL, = 0 TOTL UNIT WEIGT OF KFILL SOIL = 0 PF bf. LULTE TE REQUIRED EIGT "" PER TE "STEM EIGT" NOTE ON TIS SEET.
More informationPOWER QUALITY IMPROVEMENT BY SRF BASED CONTROL USING DYNAMIC VOLTAGE RESTORER (DVR)
Interntionl Journl of Electricl Engineering & Technology (IJEET) Volume 9, Issue 1, Jn-Fe 2018, pp. 51 57, rticle ID: IJEET_09_01_005 ville online t http://www.ieme.com/ijeet/issues.sp?jtype=ijeet&vtype=9&itype=1
More informationANALYSIS OF DISTANCE RELAY PERFORMANCE IN PROTECTION OF HIGH VOLTAGE TRANSMISSION LINE
Pper ID: EE0 Proceedings of INTERNTIONL ONFERENE ON OMPUTING, OMMUNITION ND ENERGY SYSTEMS (IES-6) In ssocition with IET, UK & Sponsored y TEQIP-II 29 th -30 th, Jn. 206 NLYSIS OF DISTNE RELY PERFORMNE
More informationVoltage Management in Unbalanced Low Voltage Networks Using a Decoupled Phase- Tap-Changer Transformer
Downloded from orit.dtu.dk on: Jul 5, 28 Voltge Mngement in Unlned Low Voltge Networks Using Deoupled Phse- Tp-Chnger Trnsformer Coppo, Mssimilino ; Turri, Roerto ; Mrinelli, Mtti; Hn, Xue Pulished in:
More informationThe Effects of Interference Suppression by a Reconfigurable Structure at DSSS-DPSK Receiver
494 N. MIOŠEVIĆ, Z. NIKOIĆ, B. DIMITRIJEVIĆ, B. NIKOIĆ, THE EFFECTS OF INTERFERENCE SUPPRESSION The Effets of Interferene Suppression y Reonfigure Struture t DSSS-DPSK Reeiver Nend MIOŠEVIĆ, Zori NIKOIĆ,
More informationMultivariable integration. Multivariable integration. Iterated integration
Multivrible integrtion Multivrible integrtion Integrtion is ment to nswer the question how muh, depending on the problem nd how we set up the integrl we n be finding how muh volume, how muh surfe re, how
More informationTechnical Note 7. General Introduction. Holy Stone
Generl Introdution Tehnil Note 7 The Multilyer Cermi Chip Cpitors supplied in bulk, ssette or tped & reel pkge re idelly suitble for thik-film Hybrid iruits nd utomti surfe mounting on printed iruit bords.
More informationU N I V E R S I T Y. Toward Gbps Cryptographic Architectures. Ramesh Karri, Piyush Mishra, Igor Minkin Kaiji Wu, Khary Alexander, Xuan Li
Polytehni U N I V E R S I T Y Towrd - Gps Cryptogrphi Arhitetures Rmesh Krri, Piyush Mishr, Igor Minkin Kiji Wu, Khry Alexnder, Xun Li Otoer 22 WICAT TR 2-5 Towrds - Gps Cryptogrphi Arhitetures Khry Alexnder!,
More informationModule 9. DC Machines. Version 2 EE IIT, Kharagpur
Module 9 DC Mchines Version EE IIT, Khrgpur esson 40 osses, Efficiency nd Testing of D.C. Mchines Version EE IIT, Khrgpur Contents 40 osses, efficiency nd testing of D.C. mchines (esson-40) 4 40.1 Gols
More informationSolutions to exercise 1 in ETS052 Computer Communication
Solutions to exercise in TS52 Computer Communiction 23 Septemer, 23 If it occupies millisecond = 3 seconds, then second is occupied y 3 = 3 its = kps. kps If it occupies 2 microseconds = 2 6 seconds, then
More informationGENERAL NOTES USE OF DESIGN DATA SHEETS:
GENERL DT: TE FOLLOWING DT IS SSUMED: USE OF DT SEETS: ED REVIEWED INTERNL NGLE OF FRITION OF KFILL SOIL, = 30 TOTL UNIT WEIGT OF KFILL SOIL = 20 PF bf. LULTE TE REQUIRED EIGT "" PER TE "STEM EIGT" NOTE
More informationA Low Power Parallel Sequential Decoder for Convolutional Codes
Int. J. Com. Dig. Sys. 2, No. 2, 95-(23) 95 Interntionl Journl of Computing n Digitl Systems http://x.oi.org/.2785/ijs/226 @ 23 UOB SPC, University of Bhrin A Low Power Prllel Sequentil Deoer for Convolutionl
More informationChapter 2 Literature Review
Chpter 2 Literture Review 2.1 ADDER TOPOLOGIES Mny different dder rchitectures hve een proposed for inry ddition since 1950 s to improve vrious spects of speed, re nd power. Ripple Crry Adder hve the simplest
More information3878 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 61, NO. 9, SEPTEMBER Optimal Algorithms for Near-Hitless Network Restoration via Diversity Coding
3878 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 6, NO. 9, SEPTEMBER 23 Optiml Algorithms for Ner-Hitless Network Restortion vi Diversity Coing Serht Nzim Avi, Stuent Memer, IEEE, n Ener Aynoglu, Fellow,
More informationFuzzy Logic Controller for Three Phase PWM AC-DC Converter
Journl of Electrotechnology, Electricl Engineering nd Mngement (2017) Vol. 1, Number 1 Clusius Scientific Press, Cnd Fuzzy Logic Controller for Three Phse PWM AC-DC Converter Min Muhmmd Kml1,, Husn Ali2,b
More informationSynchronous Machine Parameter Measurement
Synchronous Mchine Prmeter Mesurement 1 Synchronous Mchine Prmeter Mesurement Introduction Wound field synchronous mchines re mostly used for power genertion but lso re well suited for motor pplictions
More informationSo Many Possibilities page 1 of 2
Otober Solving Problems Ativities & So Mny Possibilities pge of Use the blnk spe to solve eh problem. Show ll your work inluding numbers, words, or lbeled skethes. Write omplete sentene below your work
More informationImplementation of Different Architectures of Forward 4x4 Integer DCT For H.264/AVC Encoder
Implementtion of Different Architectures of Forwrd 4x4 Integer DCT For H.64/AVC Encoder Bunji Antoinette Ringnyu, Ali Tngel, Emre Krulut 3 Koceli University, Institute of Science nd Technology, Koceli,
More informationStudent Book SERIES. Fractions. Name
D Student Book Nme Series D Contents Topic Introducing frctions (pp. ) modelling frctions frctions of collection compring nd ordering frctions frction ingo pply Dte completed / / / / / / / / Topic Types
More informationICL7106, ICL7107 ICL7106S, ICL7107S
August 99 SEMICONDUCTOR Complete Dt Sheet ville vi we, Hrris home pge: http://www.semi.hrris.om or vi Hrris AnswerFAX, see Setion ICL06, ICL0 ICL06S, ICL0S 3 / 2 Digit, LCD/LED Disply, A/D Converters Fetures
More informationThe Great-Case Cabinet Company
Hng Angle Mesurement Proeure To ensure tht your guitr is hoste properly, we nee to know how ig it is. Our lrgest inet will host lmost ny guitr on the mrket, ut more eonomil size my e equte. If you hve
More informationApplication Note. Differential Amplifier
Appliction Note AN367 Differentil Amplifier Author: Dve n Ess Associted Project: Yes Associted Prt Fmily: CY8C9x66, CY8C7x43, CY8C4x3A PSoC Designer ersion: 4. SP3 Abstrct For mny sensing pplictions, desirble
More information