Compensation of Current Measurement Error for Current-Controlled PMSM Drives

被引：0
|
作者：
Kim, Myoungho [1 ]
Sul, Seung-Ki [1 ]
Lee, Junggi [2 ]
机构：
[1] Seoul Natl Univ, Dept Elect Engn & Comp Sci, Seoul, South Korea
[2] LG Elect, EV Components Res Grp, Seoul, South Korea
来源：
2012 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) | 2012年
关键词：
LOW STATOR FREQUENCY; AC MOTOR-DRIVES;
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：
Accurate measurement of phase current is crucial in a current-controlled PMSM drive system. Current measurement error directly deteriorates torque control performance. This paper analyzes effects of the current measurement error on the phase current and the output voltage of the current controller. Based on the analysis, a compensation method is proposed. It compensates the offset error and the scaling error separately without any additional hardware but using the output voltage reference of the current controller. The proposed method can be applied to general current-controlled PMSM drives in whole operation range. Experimental results verify the effectiveness of the proposed compensation method.
引用
收藏
页码：487 / 494
页数：8
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