无刷直流电动机的方波与正弦波驱动  

Squave-wave Drive and Sine-wave Drive of BLDCM

作　　者：王宗培 韩光鲜[2] 程智 程树康[2] 

机构地区：[1]珠海运控电机有限公司,广东珠海519001 [2]哈尔滨工业大学,黑龙江哈尔滨150001

出　　处：《微电机》2002年第6期3-6,18,共5页Micromotors

摘　　要：采用电子换向取代机械换向的 BL DCM,绕组电流除了与传统的 DCM一样接近方波以外 ,还可以是正弦波 ,都是有 DCM的特性 ,都属于 BL DCM。二种驱动方式的机械特性和转矩特性相接近 ,但运行平衡性、调速范围和噪声等则很不一样。正弦波驱动要好得多。目前正弦波驱动 BL DCM多用于要求高的伺服系统 ,价格甚高 ,这不会影响正弦波驱动应是 BL DCM的重要发展方向。The phase current of BLDCM, with replacement of mechanical commutation by the use of electrical commutation, can be approximate to square-wave as the traditional DCM; and can also be a sine one. Both of them belong to BLDCM with the characteristics of DCM.Although these two types of driving style are almost with the same mechanical and torque characteristics, the stability, the velocity modulating range and noise are quite different. The sine-wave drive system is much better than the square-wave one. By far the sine-wave drive system is mostly used to the higher requirement application and with a higher price, with can not be a barrier of the sine-wave drive representing the important developing orientation of BLDCM.

关 键 词：无刷直流电动机 方波驱动 正弦波驱动 转矩脉动 机械特性 转矩特性 电刷 换向器 

分 类 号：TM33[电气工程—电机]