摘要
提出一种新型的恒开关频率感应电机的模型预测电流控制方法。使用模型预测电流控制,设计了考虑参考电流和预测电流之间误差的代价函数。提出一种基于二分法的准连续参考电压计算的数值方法,用于在逆变器切换前生成优化的参考电压矢量作为PWM输入值。这可以显著提高电流质量,减少转矩脉动,并确保逆变器的开关频率固定。所提出的方法通过仿真验证,提高了感应电动机性能。
This paper presentsa novel model predictive current control method for induction machine with constantswitching frequency. Using model predictive current control, a cost function considering error between the referencecurrent and the predicted current is designed.A numerical method of quasi-continuous reference voltage calculationbased on dichotomy is applied to generate the optimized reference voltage vectors which are selected as the input ofPWM before switching the inverter. This can significantly improve the current quality, reduce the torque ripples andensure fixed switching frequency of the inverter. The proposed method is verified by simulation, in which the inductionmotor operates with high performance.
作者
蒋炜华
王纪浩
郑先锋
Jiang Weihua;Wang Jihao;Zheng Xianfeng(Henan Institute of Technology,Xinxiang Henan 453003;Electricfever Co.,Ltd.,Shanghai 201206)
出处
《现代工业经济和信息化》
2018年第14期16-17,共2页
Modern Industrial Economy and Informationization
基金
新乡市重点科技攻关计划项目(ZG13020)
河南省教育厅科学研究重点项目(13A470216)
关键词
预测电流控制
感应电机
脉宽调制
predictive current control
induction machine
pulse width modulation
