永磁同步电机调速系统的一种变给定增益PI控制器

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Abstract In the permanent magnetic synchronous motor (PMSM) speed adjusting system, the overshoot of step response is hard to avoid in the conventional proportional integral (PI) controller. Although IP control can eliminate overshoot, the response becomes slow. In this paper, a PI controller with input gain is proposed, which adopts input derivative feedforward (IDF). The controller changes the error proportion into the difference between the input proportion and the feedback proportion, and then adds input gain M to the input proportion. Through optimization design, the response of the step input is fast and non-over shoot when M equals 0.5. Meanwhile, the response of the time-varying input is error-free when M equals 1. In order to ensure the tracking performance under the step input and the time-varying input simultaneously, a variable structure PI controller is proposed. Based on the PI controller with input gain, the variable input gain PI controller judges the input type according to the input gradient, and then chooses the corresponding optimal gain automatically. Extensive experiments are performed to verify the validity and practicality of the proposed controller.

Key words： Permanent magnetic synchronous motor PI control IP control overshoot input derivative feed forward

Received: 14 July 2015 Published: 19 January 2017

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TM351

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	Fu Hui
	Zuo Yuefei
	Liu Chuang
	Zhang Jie

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Fu Hui,Zuo Yuefei,Liu Chuang等. A Variable Input Gain Proportional Integral Controller for Permanent Magnetic Synchronous Motor Speed-Regulation System[J]. Transactions of China Electrotechnical Society, 2017, 32(1): 168-174.

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https://dgjsxb.ces-transaction.com/EN/ OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I1/168

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