摘  要：分别讨论永磁同步电机基于id=0控制下发电模式和制动模式两种能量回收情况，给出发电模式下的能量回收功率的计算公式，分析制动模式下能量回收效率受到影响的原因。提出应用单位矩阵解耦法可以提高能量回收效率，并与传统解耦方法进行了分析对比，说明了单位矩阵解耦法在提高系统能量回收效率方面的优势。最后,通过仿真以及实验验证了文中的理论分析结果。
关键词：能量回收效率；发电模式；制动模式；单位矩阵解耦

Abstract: Discussion of two regeneration mechanisms of PMSM based on zero direct-axis current method, and giving formula about power of regenerative process regeneration, and the reason impacting on efficiency of braking process regeneration was analyzed. A novel method of identity matrix decoupling for improving efficiency of regeneration has been proposed, analyzed and compared with traditional decoupling method. Advantages of identity matrix decoupling method on improving efficiency of regeneration have been illustrated. At last,both numerical simulation and experiment have approved the analysis.
Key words: efficiency of regeneration; regenerative process; braking process; identity matrix decoupling method