脉振高频信号注入法误差分析

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Abstract In order to analyze the influences of system parameters on position estimation error of high frequency pulsating signal injection method, to minimize position estimation error and eventually to improve the PMSM sensorless control performance, an expression of position estimation error is introduced based on the analysis of a PMSM’s dq axe voltages under the high frequency pulse voltage injection condition. Afterwards, the influences of controller frequency, inverter DC bus voltage and the injected high frequency pulse voltage on position estimation error are concluded by numerical analysis. In the end, experiments are conducted to prove the validity of the error analysis theory.

Key words： PMSM sensorless high frequency pulse injection position estimation error

Received: 20 October 2014 Published: 10 April 2015

PACS:

TM301

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	Articles by authors
	Liu Haidong
	Zhou Bo
	Guo Honghao
	Liu Bing
	Li Jie
	Xu Xuehai
	Shi Renshuai

Cite this article:

Liu Haidong,Zhou Bo,Guo Honghao等. Error Analysis of High Frequency Pulsating Signal Injection Method[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 38-44.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2015/V30/I6/38

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