双凸极永磁电机斜极转子设计和绕组换流模式研究  

Study of the Skewed-Rotor Design and a Novel Commutating Mode for the Doubly Salient Permanent-Magnet Machine

作　　者：李永斌[1] 龚宇[2] 江建中[2] 

机构地区：[1]山东大学电气工程学院,济南250061 [2]上海大学机电工程与自动化学院,上海200072

出　　处：《电工技术学报》2005年第7期70-75,共6页Transactions of China Electrotechnical Society

摘　　要：本文首先分析了双凸极永磁电机转子极弧宽度对自定位转矩的影响,提出了双凸极永磁电机等极弧半极宽斜极转子的设计思想;在此基础上,通过对绕组磁链的分析,率先将六状态换流模式引入到双凸极永磁电机的控制系统中,改善了双凸极永磁电机的换流特性,有效减小了转矩脉动,同时简化了系统控制参数,提高了控制的可靠性。数字仿真和试验结果验证了这些设计思想的正确性。In this paper, the effect on the cogging torque of the width of pole-arc of DSPM is analyzed, then a new rotor design concept for the DSPM, which refers to the pole-arc of rotor with the same width as that of the stator salient pole and skews at a half pole-arc, is proposed firstly. Based on the flux-linkage of the skewed-rotor prototype, six-state commutating mode for the DSPM is put forward, which will be helpful for improving its commutating performance, reducing torque ripple and simplifying control parameters, et al. The feasibility of these new ideas is verified by digital simulation and experimental results.

关 键 词：双凸极永磁电机 换流模式 转子斜极 数字仿真 转矩脉动 

分 类 号：TM351[电气工程—电机]