A Speed Adaptive Scheme-Based Full-Order Observer for Sensorless Induction Motor Drives in Low-Speed Regenerating Operation Range

被引：0
作者：
Luo, Cheng [1 ]
Wang, Bo [1 ]
Yu, Yong [1 ]
Huo, Zhixin [1 ]
Zhang, Guoqiang [1 ]
Xu, Dianguo [1 ]
机构：
[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin, Heilongjiang, Peoples R China
来源：
2018 21ST INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2018年
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
induction motor; sensorless drives; low-speed regenerating region; adaptive full-order observer; estimated flux error; FLUX OBSERVER; PERFORMANCE; STABILITY; DESIGN;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Stability of the adaptive full-order (AFO) based-speed-sensorless induction motor (IM) drives in regenerating operation range is still a challenging problem. In this paper, the neglected estimated flux error is introduced to the speed adaptive scheme by rotating the estimated current error vector to improve the accuracy and the stability of the speed estimator, especially in low-speed regenerating region. Furthermore, the feedback gains are designed based on Routh-Hurwitz criterion and verified by the stability analysis. With the proposed speed estimation scheme and the feedback gains, the unstable region in the low-speed regenerating operation range is significantly reduced, namely, the stability of the speed estimation is guaranteed. The experimental results on an ARM-based 2.2 kW IM experimental setup highlight the effectiveness of the proposed method for its performance in the low-speed regenerating region.
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页码：1301 / 1306
页数：6
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