湖北汽车工业学院学报2026，Vol.40Issue(1)：48-53,6.DOI:10.3969/j.issn.1008-5483.2026.01.009
基于电荷守恒法的永磁同步电机母线电流估算算法设计
Design of Busbar Current Estimation Algorithm for Permanent Magnet Synchronous Motor Based on Charge Conservation Method
摘要
Abstract
Addressing the model complexity,high computational load,and strong parameter dependen-cy of existing busbar current estimation algorithms,a novel estimation method based on charge conser-vation principles was proposed.The charge conservation relationships during switching tube conduction in field-oriented control(FOC)were analyzed,and measurable parameters such as three-phase cur-rents and pulse-width modulation(PWM)duty cycle were utilized for busbar current estimation.Addi-tionally,a segmented dead-time compensation strategy was designed to compensate for zero-crossing and non-zero-crossing regions.Experimental results demonstrate that the proposed algorithm reduces phase current distortion from 5.08%to 2.03%,keeps the busbar current estimation errors below 5%,and significantly enhances the algorithm's accuracy and robustness.关键词
永磁同步电机/母线电流/磁场定向控制/死区补偿Key words
permanent magnet synchronous motor/busbar current/FOC/dead-time compensation分类
信息技术与安全科学引用本文复制引用
华祥霖,江学焕,李宁,张德志,董万健..基于电荷守恒法的永磁同步电机母线电流估算算法设计[J].湖北汽车工业学院学报,2026,40(1):48-53,6.基金项目
电磁感应与节能技术十堰市重点实验室开放基金(SYZDK22025B02) （SYZDK22025B02）
湖北省重点研发计划项目(2025BEB043) （2025BEB043）
