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Sensorless Vector Control of Spindle Induction Motors Using Rotor Flux Observer with a Variable Bandwidth  

Yu, Jae-Sung (성균관대 메카트로닉스공학과)
Sin, Soo-Cheol (효성중공업연구소)
Lee, Won-Cheol (성균관대 전기공학과)
Park, Sang-Hoon (성균관대 정보통신공학부)
Won, Chung-Yuen (성균관대 정보통신공학부)
Lee, Byoung-Kuk (성균관대 정보통신공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.11, no.5, 2006 , pp. 417-425 More about this Journal
Abstract
This paper presents a new speed sensorless vector control scheme of Spindle Induction Motors(SIM) which can be successfully applied to at any speed including even zero speed. The proposed sensorless vector control of SIM uses rotor flux estimator with a variable bandwidth. This approach is based on the Closed-Loop Rotor Flux Observer(CLRFO) which includes a variable bandwidth of the PI controller. For low speed operation, the bandwidth of CLRFO has a variable bandwidth structure according to the estimated rotor velocity. The experimental results show the satisfactory operation of the proposed sensorless algorithm.
Keywords
Induction motor; Flux Observer; Sesorless;
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