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.
出处
《电气传动》
北大核心
2014年第2期64-68,共5页
Electric Drive
基金
浙江省自然科学基金(LQ13E070001)
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
four phase switched reluctance motor
predictive PWM direct instantaneous torque control
multiphase torque sharing strategy
torque ripple
commutation copper losses
low loss commutation strategy
