Modeling and Simulation of a Boost DC/AC Inverter fed Induction Motor Drive

Transcription

1 oeling an Simulation of a Boot DC/AC Inete fe Inuction oto Die Tolga Sügeil Douz Eylül Unieity, Faculty of Engineeing, Depatment of Electical & Electonic Engineeing, Kaynala Campu 560, Buca, Izmi, Tuey tolga.ugeil@eu.eu.t Abtact- Single-tage thee-phae boot c/ac inete can poie inuoial ac output oltage which ae geate than input c oltage without neeing an intemeiate c oltage boot tage. Such a topology i cot-effectie ue to euce witch count an it i uitable fo compact eign Thee unique featue of thi type of inete mae it a uitable choice in many application uch a uninteuptible powe upplie, aiable pee ac ie, an ome itibute powe geneation cheme. Thi pape aim to inetigate the pefomance of the inete in aiable-pee contol of an inuction moto though the imulation moel. The imulation eult obtaine fom a thee-phae boot c/ac inete contolle inuction moto ie ytem ae obtaine fom mathematical moel an peente in thi pape. I. INTRODUCTION The thee-phae oltage ouce inete (VSI) i the mot common powe cicuit topology that i ue in c/ac powe coneion application. The main featue of thi topology i that it poie ac output oltage which ae lowe than it input c oltage an non-inuoial in hape, o output filte ae equie in oe obtain inuoial output oltage. When it i equie to hae ac output oltage leel lage than the input c oltage, it i boote by mean of a boot c/c conete at an intemeiate tage a hown in Fig.. Alo, the topology hown in Fig. poie a biiectional powe flow between the input c oltage an ac output loa. With thee featue, it can be ue in uninteuptible powe upplie, aiable pee ac ie, an itibute powe geneation uch a fuel-cell an photooltaic ytem [-]. Anothe powe cicuit topology that ha the afoementione featue aboe i the ingle-tage boot c/ac inete a hown in Fig.. Thi thee-phae inete cicuit conit of thee biiectional boot conete each of which i moulate by inuoial oltage oe a c component. Thi topology can poie output oltage geate than c input oltage, o it oe not equie an intemeiate tage fo c oltage booting unlie the topology hown in Fig.. In aition, it i cheape ue to euce witch count an uitable fo compact eign [-5]. In thi pape, it i aime to inetigate the pefomance of the inete when ue fo the pee contol of an inuction moto though the imulation moel. The imulation moel wee contucte fom mathematical equation of -phae boot c/c inete an inuction moto. A liing moe contolle wa employe fo the inete output oltage an fequency contol. In the pee contol of the inuction moto lip egulation metho wa ue. The ytem tuctue an mathematical moel ae gien in Section II an the imulation eult ae gien in Section III. Fig.. The conentional cicuit cheme of -phae VSI with an intemeiate biiectional boot c/c conete tage. Fig.. The cicuit cheme of a -phae boot c/ac inete feeing a balance -phae loa. II. SYSTE OVERVIEW The ytem hee conit of a -W, 0-V, 50-Hz, 4-pole inuction moto fe by a -phae boot c/ac inete. The Acemp - Electomotion 0, 8-0 Septembe 0 İtanbul - Tuey /$ IEEE Downloae fom

2 bloc cheme of the complete ytem i hown in Fig.. The output oltage of the boot inete ae contolle by a liing moe contolle [] uch that the output oltage an inucto cuent tac the geneate efeence within a efine hyteei ban (ε h ). The oltage efeence ae applie though a ine wae geneato an cuent efeence ae obtaine by paing the actual inucto cuent though a low-pa filte. In the pee contol of the inuction moto, lip egulation metho [7] wa employe. The equie inete fequency i etemine fom the pee feebac eo though a PI contolle an the lip comman i limite uch that the machine i not loae beyon it maximum toque. The inete output oltage magnitue i etemine by the V/f pofile of the machine. Both oltage an fequency comman ae pocee in a ine wae geneato an efeence waefom ae geneate fo the inete. The ytem moel wa built in ATAB/Simulin uing the mathematical moel gien in the following ection. A. athematical oel of Boot Inete The mathematical moel fo the -phae boot DC/AC inete wa eie in []-[]. The input an output equation in the conenient tate-pace fom ae a follow: i C o () V c Ri S o S i i () whee =a,b,c, i abc ae the boot inucto cuent, abco ae the capacito oltage, S abc ae the witching function, V c i the c input oltage, an i abc ae the loa cuent. The output oltage aco the capacito ae in the fom of a, b c () o o, ac o, c, The oltage elationhip fo each boot conete fo the continuou conuction moe i gien by [5] V c o (4) whee i the uty cycle, which i aie aoun an aeage alue D to obtain ac oltage aying aoun a c bia oltage at the output. Hence, the c output oltage can be expee a o c Vc D, (5) The upeimpoe -phae oltage on the Y-connecte tato wining of the inuction moto can be obtaine a Fig.. The bloc cheme of -phae boot c/ac inete fe inuction moto pee contol n o no a, b, c na, B, C The ac component of the capacito oltage hae the equal magnitue an iplace by 0 o in phae, while the c component ae equal. Hence, fo a balance et of theephae oltage, the econ tem in (6), which i the zeo equence component i equal to the o,c an the applie phae oltage become (6) a, b c (7) n o, ac, Fo pope opeation of the inete, the equie c bia oltage i expee a [5] A V o, c c (8) whee A i the pea amplitue of each phae oltage. B. athematical oel of Inuction oto The oltage equation fo a ingle-cage inuction machine at tationay q efeence fame with zeo-equence equation omitte ae a follow [6]: q The toque equation fo mechanical motion i i i i i (9) q q 568 Acemp - Electomotion 0, 8-0 Septembe 0 İtanbul - Tuey

3 T T e J P (0) whee T i the loa toque, i the electical oto pee, J i the moto moment of inetia, an T e i the electomagnetic toque an expee a T e P iqi iiq () III. SIUATION RESUTS The pefomance of the ytem wa inetigate though ATAB/Simulin imulation moel. The moel of the complete ytem gien in Fig. wa contucte uing the equation ()-(7) an (9)-() fo inete an inuction moto, epectiely. The ytem paamete incluing the contolle ae hown in Table I. The inuction machine tato phae oltage ae applie by tanfoming the abc oltage to qo tationay efeence fame a whee K () qo abcn 0 K () In imulation, the oto pee efeence wa et to pu an the epone of the ytem wa hown in Fig.4, Fig.5, an Fig.6. In Fig.4, the aiation of the inuction moto toque an oto pee ae hown. The machine i acceleate at noloa fom tantill to it ate pee an the loa on it haft i change to T =0Nm at t=0.5 fo motoing, to T =-0Nm at t=.0 fo egeneatie opeation, an to zeo at t=.5, epectiely. The pee contolle etablihe the oto pee at the gien efeence alue with a teay-tate eo of about % when the moto i fully loae. In Fig.5, the capacito oltage an inucto cuent of the boot inete ae hown. Duing tatup, the capacito oltage i boote up to 00V an then the ac oltage magnitue i gaually inceae ue to inceaing oto pee. In Fig.6, the applie phae oltage an tato cuent ae hown. It mut be note that the lip egulation metho inheently limit the tating cuent. Inete output oltage ha a tacing eo of about 6% in magnitue when the moto i fully loae uing t= In Fig.7, the aiation of the tato phae oltage an cuent ae hown uing loa tanition. The boot inete uccefully pefom it opeation an poie a ufficient tanient epone uing thee exteme change. In Fig.8, the tato phae oltage an cuent ae hown uing teaytate fo both motoing an egeneatie moe. The boot inete poie inuoial output oltage with low total hamonic itotion alue of appoximately 5.7% an.8% in motoing an egeneatie moe, epectiely. The fequency pectum of the inete inucto cuent i hown in Fig.8. The aeage witching fequency change epening on the loa conition. In motoing moe, the liing moe hyteei contolle achiee a witching fequency of 8 Hz, while it i about Hz in egeneatie opeation. The witching fequency of the inete can be fixe eplacing the hyteei bloc gien in Fig. by the pule-wih moulation cheme. Setting the contolle paamete ame, the witching fequency of the inete wa et to 5Hz an almot the ame epone wee obtaine. The fequency pectum of the PW witche inete cuent i hown in Fig.0. TABE I SYSTE PARAETERS -phae boot c/ac inete cicuit paamete: * Vc 00V, Vo, c 00V mh, R 0.0, C 50F liing moe contolle paamete of the boot inete: 0., 0.04, 0.00, 0. h 5A Inuction moto paamete:.4050, 0.64 P 4,.950 H, J 0.0g. m Slip egulation contolle paamete: K p, K I 0.0, lip max 0.58H, 0. Fig. 4. The epone of inuction moto uing tat-up an againt loa aiation (a) loa an electomagnetic toque (b) oto pee Acemp - Electomotion 0, 8-0 Septembe 0 İtanbul - Tuey 569

4 Fig. 5. The epone of boot c/ac inete uing inuction moto tat-up an loa aiation (a) capacito phae oltage (b) inucto phae cuent Fig. 7. The aiation of the electical quantitie on the tato of the inuction moto uing loa tanition (a) tato phae oltage an cuent fom no-loa to full-loa motoing (b) tato phae oltage cuent fom fullloa motoing to full-loa geneating Fig. 6. The aiation of the electical quantitie on the tato of the inuction moto uing tat-up an loa aiation (a) tato phae oltage (b) tato phae cuent IV. CONCUSION The pee contol of inuction moto by a -phae boot c/ac inete wa inetigate in thi tuy. The opeation of the inete wa tete une iffeent loaing conition. The pefomance of the boot inete i quite atifactoy une thee conition. It i poiing almot inuoial output oltage, fat tanient epone with the employe contolle, an egeneatie capability. Fom thee point of iew, boot inete ae goo caniate fo aiable pee ac ie intene fo the ue in application uch a electic ca when compae to the conentional oltage ouce inete. The pule-wih moulate witching can be employe in contol of the inete. Thee apect wee inetigate though imulation moel eelope in ATAB/Simulin an thei aliity wa eifie by imulation eult. Fig. 8. The electical quantitie on the tato of the inuction moto uing teay-tate (a) tato phae oltage an cuent at full-loa motoing moe (b) tato phae oltage cuent at full-loa egeneatie moe 570 Acemp - Electomotion 0, 8-0 Septembe 0 İtanbul - Tuey

5 Fig. 9. Fequency pectum of the inete inucto cuent uing teaytate (a) full-loa motoing moe (b) at full-loa egeneatie moe Fig. 0. Fequency pectum of the inete inucto cuent uing teaytate with PW witching (a) full-loa motoing moe (b) at full-loa egeneatie moe REFERENCES [] R.O. Cacee, an I. Babi, A Boot DC-AC Conete: Opeation, Analyi, Contol, an Expeimentation, Inutial Electonic Contol an Intumentation Cofeneence, 995, pp [] R.O. Cacee, an I. Babi, A Boot DC-AC Conete: Analyi, Deign, an Expeimentation, IEEE Tan. on Powe Electonic, ol.4, no., 999, pp [] C. Cecati, A. Dell Aquila, an. iee, A Noel Thee-Phae Single-Stage Ditibute Powe Inete, IEEE Tan. on Powe Electonic, ol.9, no.5, 004, pp. 6-. [4] B.Kouhi, H. Khalilinia, J. Ghaiai, an.s. Neja, A New Thee- Phae Boot Inete: Topology an Contolle, IEEE 008, pp [5]. Jang an V.G. Agelii, A inimum Powe Poceing Stage Fuel Cell Enegy Sytem Bae on a Boot-Inete with a Bi-iectional Bac-up Battey Stoage, IEEE 00, pp [6] P.C. Kaue, O. Waynczu, an S. D. Suhoff, Analyi of Electic achiney, IEEE Pe, 994. [7] G.K. Dubey, Powe Semiconucto Contolle Die, Pentice-Hall, 989. Acemp - Electomotion 0, 8-0 Septembe 0 İtanbul - Tuey 57