摘要
多电平逆变技术是大容量变频调速的首选方案,结合多相电机技术可以进一步提升调速系统的容量。本文对中点钳位(neutral point clamped,NPC)型三电平逆变器供电的10 k W、九相磁通切换永磁(flux-switching permanent magnet,FSPM)电机调速系统进行了仿真和实验研究,探索结合多电平逆变技术和多相电机技术的调速方案。在三相FSPM电机矢量控制的基础上扩展建立了九相FSPM电机的定子磁场定向矢量控制方法,分析了调速系统采用两种载波PWM方式下产生的电压和电流波形。另外,3、5、7次谐波电流的解耦闭环控制成功消除了直流侧中点电位偏移。最后仿真和实验结果证明了理论分析的正确性和有效性。
For higher power motor drive system,the multi-level inverter technology incorporating multiphase motor is preferred. This paper studies a 10 k W nine-phase flux-switching permanent magnet（ FSPM） motor supplied by a neutral-point-clamped three-level nine-phase inverter,and aims at finding a compromising control scheme in the multi-level multi-phase drive system. Stator-flux-oriented vector control in the nine-phase FSPM motor was conducted to analyze the output voltage and current performance in terms of two kinds of carrier-based PWM methods. Furthermore,the closed-loop harmonic（ the third,fifth,and seventh） current control was designed to alleviate the neutral point voltage shift at the dc-link side. Both the simulation and experimental results were carried out to validate the study.
出处
《电机与控制学报》
EI
CSCD
北大核心
2017年第2期18-26,共9页
Electric Machines and Control
基金
国家重点基础研究发展计划(973计划)(2013CB035603)
国家自然科学基金重点项目(51137001)
江苏省普通高校研究生科研创新计划(CXZZ13_0096)
关键词
三电平
九相
矢量控制
载波
闭环
three-level
nine-phase
vector control
carrier-based
closed-loop
