基于普通精度增量式编码器的永磁伺服电机低速检测与控制优化方法研究

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Abstract

Aiming at the shortcomings of traditional control method for permanent magnet servo motors,an optimal speed detecting and controlling approach at low speed range is presented with ordinary-resolution incremental encoder in this paper.An extended M/T method is adopted for improving the speed of detection precision at ordinary-low speed range,and an improved T-method with closed-loop tracking feedback is employed for realizing high-precision speed detection at ultra-low speed range and an adaptive Proportion-Integration controller of reference speed is applied for obtaining a better speed control performance.Finally,sufficient experiments are implemented by the proposed approach on DSP controller and permanent magnet brush-less servo motor.Experimental results demonstrate that the dynamic performance at low speed is greatly enhanced and the adjustable speed range is extremely expanded.

Key words： Permanent magnet servo motor incremental encoder extended M/T method adaptive PI controller ultra-low speed

Received: 25 May 2015 Published: 21 November 2016

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TM351

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	Articles by authors
	Wang Zhaodong
	Wen Xiaoqin
	You Linru
	Huang Zhaobin

Cite this article:

Wang Zhaodong,Wen Xiaoqin,You Linru等. Research on Detection and Control Optimized Approach for Permanent Magnet Servo Motors at Low Speed with Ordinary-Resolution Incremental Encoder[J]. Transactions of China Electrotechnical Society, 2016, 31(21): 212-220.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2016/V31/I21/212

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