ANFIS MODEL METHOD FOR WIDE RANGE OPERATION OF HIGH- SPEED BLDC MOTOR. Malli Kailash 1 * V Usha Reddy 2

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1 Ieraioal Joral of Techical Iovaio i Moer Egieerig & Sciece (IJTIMES) Ipac Facor: 5. (SJIF-07), e-issn: Vole 4, Isse 09, Sepeber-08 ANFIS MODEL METHOD FOR WIDE RANGE OPERATION OF HIGH- SPEED BLDC MOTOR Malli Kailash * V Usha Rey Elecrical & Elecroics Egieerig, M.Tech, S.V.Uiversiy, Tirpahi, Iia. Elecrical & Elecroics Egieerig, Ass. Prof, S.V.Uiversiy, Tirpahi, Iia. Absrac:- I isries he applicaios reqirig he ivolvee of high spee BLDC oors are icreag rapily a hece he sy of iprovig he perforace a wie rage operaio of BLDC oors is of grea iporace. I geeral, sesorless BLDC oors se Plse Aplie Molaio (PAM) or Plse Wih Molaio (PWM) ehos as rive. This paper proposes ANFIS oel rive echiqe for corollig he rive of brshless DC (BLDC) oor. I he paper, we se ANFIS oel o cobie PAM a PWM siably a herefore avaages of boh ehos are ilize. Propose eho is copare wih PAM a PWM ehos a resls obaie eosraes ha he propose eho exhibis beer perforace as copare wih coveioal ehos (PAM & PWM) Keywors: Brshless DC oor (BLDC), Plse Aplie Molaio (PAM) a Plse Wih Molaio (PWM).. Irocio The poplariy a sage of BLDC oors i varios isrial applicaios is icreag seaily ow a ays e o heir eros avaages like low aieace, high efficiecy, copacess a reasoable cos ec [-3]. Treeos evelopes i bearig echologies helpe i reachig he higher spee of BLDC oors [4-5]. BLDC oors are geerally rive by PWM echiqe or PAM echiqe base o he power applicaios [6-7]. I [8-7], iffere ypes of PWM ehos were aresse for corollig he BLDC oor. I all hese cases, firig plses o he river circi which corols he ip volage of he oor are corolle a geerae wih siable agle shif. PWM echiqe srggles wih ripples a high ao of crre a oerae a high spees [8-9]. I [0], i is repore ha PWM is preferable for low spee applicaios raher ha ei a high spee applicaios. I [], six plse iverer of hree phase ype was propose for BLDC oor. I [], a ovel sesorless PWM echiqe is propose for low power BLDC oor. The resls fro he lierare iplies he fac ha o PWM eho ill ow is capable of esrig he effecive perforace of BLDC oor a all spees. I [3], BLDC oor rive by PAM eho was propose, which corols he firig plses for iverers hrogh six sep oe. This eho appeare o be sperior o PWM eho. I [4], Avaages a isavaages of PWM a PAM ehos were lise. Differe PAM a PWM ehos propose for variable spee BLDC oors i [5]. I [6], qasi crre sorce iverer eploye o ajs DC lik volage a hereby iprovig he perforace of BLDC oor. Bck-Boos coverers were propose i aiio o oral iverers o ehace a corol he volage hereby icreag he perforace of BLDC oor [7-9]. This paper firs preses he Haroic Copo Aalysis whe PWM is se as corol echiqe a he proposes a ANFIS oel which cobies he avaages of PWM as well as PAM ehos. Laer par of he paper iscsses he silaio iagra a copariso of resls obaie hrogh coveioal a fzzy ehos. I he las par of he paper, coclsio a scope for frher exesio, liiaios of he work are eaile.. Haroic Copoe Aalysis Fig. shows he BLDC oor iagra which is helpfl for evelopig he aheaical oel. This paper aalysis epes o haroics, herefore faeal a haroics are expresse as E E E () E af bf E E 0 0 () IJTIMES-08@All righs reserve 33

2 E cf E E - E E abf bcf caf E 0 0 3E 3E 3E 6E Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) 6E E 50 (3) (4) (5) (6) Where E af, Ebf a E cf are faeal phase volages, E abf, Ebcf a Ecaf are faeal lie volage. E axi volage. is For PWM corol, chopper sigals are se for olaig lie-o-lie volages. For exaple, he faeal wave of he sigal which is o be olae ca be wrie as: abf M U (7) bcf M U (8) caf M U (9) Fig. BLDC oor wih recifier a iverer. The vale of olaio iex varies bewee 0 o. We se he schee of PWM geeraor i [30]. The wo paraeers alpha a are efie as: M M Forier ecoposiio is wrie as: (0) () IJTIMES-08@All righs reserve 333

3 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) righs reserve 334 cos 4 s ao M M () cos s bo M M (3) cos s co M M (4) Ug he above eqaios, he lie vales of ecoposiio is wrie as: 0 M M abf (5) 30 3 M abf (6) Haroic qaiy bewee phases a & b ca be wrie as: k s k abh k k k M J (7) Where J iicaes Bessel fcio of kh orer

4 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) 3. Propose eho Fro he lierare, i is ieifie ha PAM corol is bes siable for high spee applicaios a PWM corol is bes siable for reaiig spees. Therefore, he propose eho ivolves wo pars of raiig aa, he firs par ivolvig he PWM behavior a seco par iclig he PAM behavior i sch a way he ANFIS aa is ake o rai he ebership fcios a rles. The propose srcre is show i figre. Fig. Two level fzzy syse Fig. shows he propose srcre of wo level ANFIS, i cosiss of selecio swich, fzzy-i a fzzy-ii. The swich works base o ip spee a coecs he coroller o respecive fzzy i for corollig prpose. I his sy, he spee less ha or eqal o 500rp is cosiere as low spee a above 500 rp is reae as high spee. Depeig po he spee of he oor, his swich coecs fzzy-i for low spee applicaios a fzzy-ii for high spee applicaios. Fzzy-I a fzzy-ii are ANFIS oels which are e base o previos aa of low a high spees. Fzzy-I works effecively for low spee applicaios a his op coecs o plse geeraor of lilevel iverer base o plses, he op of lilevel iverer chages he op volage coece o BLDC oor. Siilarly fzzy-ii is esige. 4. Resls & Discssio Fig.3 shows he silaio iagra. Fig.3 Silaio iagra of BLDC oor. IJTIMES-08@All righs reserve 335

5 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) Fig.4 Spee corol wih coveioal eho. Fig.5 Phase crres of BLDC wih coveioal eho righs reserve 336

6 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) Fig.6 Referece spee for boh Coveioal & Fzzy spee corol Fig.7 Loa Torqe for boh Coveioal & Fzzy corol. Fig.8 Spee corol wih Fzzy coroller. righs reserve 337

7 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) Fig.9 Phase crres of BLDC wih Fzzy coroller. I his sy, loa orqe of.n- is applie o BLDC oor a 0. secos a referece spee of 000rp a 0 seco is chage o 000 rp a 0.5 secos, which are show i figres 6 a 7 respecively. Afer he applicaio of loa orqe a 0. secos, he spee of he oor afer loa orqe eviaio ook 0.6 secos i coveioal eho a 0.5 secos i ANFIS eho o reach 000 rp wih rece agie ipac. A 0.5 secos whe he referece spee is chage fro 000 rp o 000 rp, BLDC rive is akig he ie fro 0.5 o 0.56 secos i coveioal eho a fro 0.5 o 0.54 secos i ANFIS eho o chage he spee of he oor o 000 rp, which are show i figres 4 a 8 respecively. IJTIMES-08@All righs reserve 338

8 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) Fig.0 Spee corol wih Fzzy coroller (spee chagig fro rp). Fig. Referece spee for boh Coveioal & Fzzy. IJTIMES-08@All righs reserve 339

9 Vole 4, Isse 09, Sepeber -08, e-issn: , Ipac Facor: 5. (SJIF-07) Fig. phase crres of BLDC oor wih Fzzy coroller (spee chagig fro 000 o 3000 rp). Siilarly, he propose eho is ese wih aoher se of spee variaio by chagig he referece spee fro 000 o 3000 rp. I all he above cases, propose eho is workig effecively as copare o coveioal eho (as per figres 0 o ). 5. Coclsio Accepig he cocle resls fro pas sies abo PWM a PAM echiqes ha PAM gives high-hae perforace a ei a high spees while PWM is ore copee a low spees, a hybri ANFIS oel is propose cobiig boh PWM a PAM corol a ese for iffere spee corol applicaios, loa variaios. The obaie resls are copare wih coveioal corol eho a fro he resls, i ca be iferre ha propose eho corols spee effecively as copare o coveioal ehos er iffere spee applicaios a loa applicaios. Refereces [] J. Shao, A iprove icroprocessor-base sesorless brshless DC (BLDC) oor rive for aooive applicaios, IEEE Tras. I. Appl., vol. 4, o. 5, pp. 6, Sep./Oc [] A. Cavagio, S. Saie, a S. Vascheo, Experieal ieificaio a recio of acosic oise i sall brshe DC oors, IEEE Tras. I. Appl., vol. 50, o., pp , Ja./Feb. 04. [3] E. V. Sachez, J. G. Gil, J. C. G. Real, a J. F. D. Higera, A ew eho for sesorless esiaio of he spee a posiio i brshe DC oors g sppor vecor achies, IEEE Tras. I. Elecro., vol. 59, o. 3, pp , Mar. 0. [4] S. Zheg, B. Ha, a L. Go, Coposie hierarchical ai-isrbace corol for ageic bearig syse sbjec o liple exeral isr-baces, IEEE Tras. I. Elecro., vol. 6, o., pp , Sep. 04. [5] S. Zheg a B. Ha, Ivesigaios of a iegrae aglar velociy easree a aie corol syse for spacecraf g agei-cally sspee oble-gibal CMGs, Av. Space Res., vol. 5, o., pp. 6 8, 03. IJTIMES-08@All righs reserve 340

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