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http://dx.doi.org/10.5207/JIEIE.2005.19.1.070

Improvement of Control Performance of PMSM in the low Speed Range  

Won, Chung-Yuen (성균관대학교 정보통신공학부)
Yu, Jae-Sung (성균관대학교 대학원 에너지 시스템공학과)
Jun, Bum-Su (신성 ENG)
Hwang, Sun-Mo (성균관대학교 대학원 전기전자공학과)
Kim, Yuen-Chung ((주)팩테크)
Lee, Song-Seok ((주)팩테크)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.19, no.1, 2005 , pp. 70-79 More about this Journal
Abstract
In this paper, improvement method of control performance by a full-order observer using reduced-order state equation is proposed in the low speed range. Full-order observer using reduced-order state equation is the motor speed and the disturbance torque observer. The proposed algorithm is very stable in the low speed range about 1.9[rpm]. The disturbance torque in the motor drive system degrades speed control performance in the low speed range. The proposed algorithm estimated both motor speed and disturbance torque. The estimated disturbance torque is used as a feedforward value in output of the speed controller, As a result, it improves the response of load torque in the low speed range(1.9rpm).
Keywords
Permanent-magnet synchronous motor; Full-order observer; Low speed range;
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