Research on Dead-zone Compensation of AC Servo System based on voltage feed forward decoupling and FOC

• Autorzy: Chen Y. , Xie Q. , Zhou H. , Liu X.

Warianty tytułu

PL

Badania martwej strefy kompensacji w serwomechanizmie ac bazującym na sterowaniu FOC i odsprzężeniu typu feed forward

• Języki publikacji: EN

Abstrakty

EN

For the problem that the dead-zone time of the inverter of field-oriented control (FOC) alternating current (AC) servo leads to current distortion, torque impulse and degrades the control performance while the traditional compensation methods ignore incomplete decoupling and leads to compensation error, this paper presents an improved dead-time compensation method. First, the d and q-axis current of permanent magnet synchronous motor (PMSM) are completely decoupled, then the relationship of the electrical angle and the direction of the three-phase current is deduced by the principle of FOC. With the accurate direction of the three-phase, the dead-time compensation can be achieved effectively. The simulation results and analysis show that the wave of current is normal after compensation and the output is steady at low speed, which demonstrates the good effect of the proposed compensation method.

PL

Martwa strefa czasowa przekształtnika serwomechanizmu ze sterowaniem FOC powoduje zniekształcenie prądu i pogorszenie możliwości sterowania. W artykule zaprezentowano ulepszona metodę kompensacji strefy martwej. Najpierw prądy w osiach d i q silnika synchronicznego są kompletnie odsprzężone, następnie jest określana zależność między kątem elektrycznym a kierunkami prądów trójfazowych. Wtedy kompensacja strefy martwej jest efektywna.

Słowa kluczowe

EN

dead-zone compensation; voltage feed forward decoupling; PMSM; FOC

PL

FOC; martwa strefa; PMSM; serwomechanizm

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 7a
• Strony: 86--89
• Opis fizyczny: Bibliogr. 10 poz., schem., tab., wykr.

Twórcy

autor

Chen Y.

autor

Xie Q.

autor

Zhou H.

autor

Liu X.

• School of Energy Science and Engineering, University of Electronic Science and Technology of China,

Bibliografia

• [1] D. Casadei, F. Profumo, G. Serra, A. Tani. FOC and DTC: Two Viable Schemes for Induction Motors Torque Control. IEEE Transactions on Power Electronics,17(2002),No.5,779-787
• [2] A.C. Oliveira, C.B. Jacobina, A.M.N. Lima. Improved Dead-Time Compensation for Sinusoidal PWM Inverters Operating at High Switching Frequencies. IEEE Transactions on Industrial Electronics,54(2007),No.4, 2295-2304
• [3] S.H. Hwang, J.M. Kim.. Dead Time Compensation Method for Voltage-Fed PWM Inverter. IEEE Transactions on Energy Conversion, v 25(2010),No.1, 1-10
• [4] G.F. Wang, Y. Yu, R.F. Yang, D.G. Xu, Dead-time compensation of space vector PWM inverter for induction motor.Zhongguo Dianji Gongcheng Xuebao, 28(2008),No.15,79-83
• [5] C. Attaianese, G. Tomasso. Predictive Compensation of Dead-Time Effects in VSI Feeding Induction Motors. IEEE Transactions on Industry Applications,37(2001),No.3,856-863
• [6] W. Chen, Y.P. Zou, P. Geng. Analysis and compensation of dead-time effects in three-phase PWM rectifiers. High Voltage Engineering, 35(2009), No.5,1156-1163
• [7] G.L. Wang, D.G.. Xu, Y. Yu, A novel strategy of dead-time compensation for PWM voltage-source inverter 2008 23rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC (2008),1779-1783
• [8] B.B.Lazhar. On the compensation of dead time and zero-current crossing for a PWM inverter controlled AC servo drives. IEEE Transactions on Industrial Electronics,51(2004),No.5,1113-1117
• [9] H.W. Kim, H.S. Kim, M.J. Youn, K.Y. Cho. Online observation and compensation of voltage distortion in PWM VSI for PMSM.IEE Proceedings: Electric Power Applications, 151(2004), No.5,534-542
• [10]B.B. Lazhar. Repetitive control based PWM inverter dead-time compensation for AC servo drives , Engineering Journal of University of Qatar, 15(2002), p 93-109