전력전자학회:학술대회논문집 (Proceedings of the KIPE Conference)
- 전력전자학회 2001년도 전력전자학술대회 논문집
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- Pages.276-279
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- 2001
직접 토크제어에 의한 유도전동기 토크맥동 저감 시스템
A Torque Ripple Reduction System of Induction Motor with Direct Torque Control
- Kim Nam-Hun (Yeungnam University) ;
- Kim Min-Ho (Yeungnam University) ;
- Kim Min-Huei (Yeungnam College of S & T) ;
- Kim Dong-Hee (Yeungnam University) ;
- Hwang Don-Ha (KERI)
- 발행 : 2001.07.01
초록
Direct torque control(DTC) is known to produce quick response in ac drives. Some drawbacks of the classical DTC are the relatively large torque ripple in a low speed range and notable current pulsation during steady state. They are reflected speed response and increased acoustical noise. In this paper, The DTC quick response are preserved at transient state, while better qualify steady state performance is produced by Space Vector Modulation(SVM). It is able to reduce the acoustical noise, torque ripple and current pulsation during steady state. The system presented are closed loop stator flux and torque observer for wide speed range that inputs are currents and voltages sensing of motor terminal. Simulation results for the 2.2kw general purposed induction motor are presented and discussed.