SRM的低转矩脉动低铜耗直接瞬时转矩控制  

Direct Instantaneous Torque Control of Torque Ripple and Copper Losses Minimization in SRM

作　　者：孙冠群[1] 蔡慧[1] 汪伟[1] 

机构地区：[1]中国计量学院机电工程学院,浙江杭州310018

出　　处：《电气传动》2014年第2期64-68,共5页Electric Drive

基　　金：浙江省自然科学基金(LQ13E070001)

摘　　要：针对多相(4相及以上)开关磁阻电动机的直接瞬时转矩控制问题,对电动机的转矩脉动和绕组铜耗的降低两项指标展开研究。提出了一种动态多相转矩分配策略用于降低转矩脉动;同时引入预测型PWM调制方式,预先确定转矩值,利于各量有效的在线计算;另外,基于动态多相转矩分配策略,提出低铜耗换相策略。各策略算法均给出数学模型并分析,并通过仿真和实验,给出了相应的结果。The direct instantaneous torque control of multi phase （ phase four and above ） switched reluctance motor was discussed. The motor torque ripple and winding copper losses were undertook some research. A dynamic multiple phase torque sharing strategy was proposed, using it to reduce torque ripple. At the same time, here is introduced to predictive PWM modulation mode, can be predetermined torque value, which is helpful for some parameters on-line calculation. In addition, based on dynamic multi phase torque sharing strategy, low copper loss commutation strategy was proposed. A mathematical model these two kinds of strategy algorithm were given and analyzed. Finally, through simulation and experiment, the corresponding results were given.

关 键 词：4相开关磁阻电动机 预测PWM直接瞬时转矩控制 多相转矩分配策略 转矩脉动 换相铜耗 低损耗换相策略 

分 类 号：TM352[电气工程—电机]