电工技术学报2016，Vol.31Issue(23)：22-30,9.
永磁同步电机相电流测量误差分析与补偿
Measurement Error Analysis and Its Compensation for Phase Current of Permanent Magnet Synchronous Motor
摘要
Abstract
For permanent magnet synchronous motor,to reduce the measurement error of the phase current and meet the speed requirements of high performance,the measurement error analysis and its compensation for the phase current are completed in the paper.Firstly,the principle of the measurement errors is introduced,and the influence of the measurement errors on the performance of the closed-loop speed control system is analyzed.Then,a compensation strategy for the d-axis current in segmented integration is proposed.The d-axis current integration can get the error terms that is used for the compensation of the current measurement.Simulation and experimental results show that offset-errors and gain-errors will cause the oscillation of the torque and the speed with 1 time and 2 times angular frequencies.The compensation strategy can reduce the measurement errors greatly so as to reduce the periodic oscillation of the torque and the speed.关键词
测量误差/偏移误差/增益误差/分段积分/周期性振荡Key words
Measurement error/offset-error/gain-error/segmented integration/periodic oscillation分类
信息技术与安全科学引用本文复制引用
蔡志端,王培良,荀倩,姜媛媛,荀博洋..永磁同步电机相电流测量误差分析与补偿[J].电工技术学报,2016,31(23):22-30,9.基金项目
国家自然科学基金项目(61573137)、浙江省公益技术应用研究计划项目(2016C31115)和湖州市公益性技术应用研究计划项目(2015GZ05)资助. （61573137）
