基于广义双矢量的永磁同步电机双模型预测转矩控制
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摘要
为了减少永磁同步电机(permant magnet synchronous motor,PMSM)模型预测转矩控制(model preictive torque control,MPTC)策略的转矩脉动,提出了一种基于广义双矢量的PMSM双模型预测转矩控制策略。控制策略将基本电压矢量组合扩展到广义双矢量,将基本电压矢量组合选取与作用时间计算分两次模型预测转矩控制处理,在每个控制周期先选择两个基本电压矢量,再计算其作用时间。仿真结果说明,与传统占空比模型预测控制相比,明显减少了转矩脉动。
In order to reduce the torque pulsation of the model predictive torque control(MPTC) strategy of the permanent magnet synchronous motor(PMSM), a PMSM two-model predictive torque control strategy based on generalized two vectors was proposed. The basic voltage vector combination was extended to generalized two vectors, and the selection of the basic voltage vector combination and the calculation of action time were processed in two model predictive torque control steps. In each control cycle, two basic voltage vectors were selected before their action time was calculated. Simulation results showed that, compared with traditional duty ratio model predictive control, the proposed strategy could significantly reduce torque pulsation.
In order to reduce the torque pulsation of the model predictive torque control(MPTC) strategy of the permanent magnet synchronous motor(PMSM), a PMSM two-model predictive torque control strategy based on generalized two vectors was proposed. The basic voltage vector combination was extended to generalized two vectors, and the selection of the basic voltage vector combination and the calculation of action time were processed in two model predictive torque control steps. In each control cycle, two basic voltage vectors were selected before their action time was calculated. Simulation results showed that, compared with traditional duty ratio model predictive control, the proposed strategy could significantly reduce torque pulsation.
引文
[1] 何栋炜,彭侠夫,蒋学程.永磁同步电机模型预测控制的电流控制策略[J].哈尔滨工程大学学报,2013,34(12):1556-1565.
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[5] 徐艳平,周钦,雷亚洲,等.永磁同步电机改进占空比模型预测转矩控制方法[J].电气传动,2017,47(5):14-17;44.
[6] 徐艳平,李园园,周钦.永磁同步电机双模型预测转矩控制策略[J].电力电子技术,2018,52(6):37-39.
[7] 徐艳平,钟彦儒.基于占空比控制的永磁同步电机新型直接转矩控制策略[J].电工技术学报,2009,24(10):27-32.
[2] 雷亚洲,徐艳平,周钦.基于改进模型预测控制的永磁同步电机DTC方法[J].电气传动,2015,45(9):3-6;19.
[3] 杨义,韩金刚,陈昊,等.永磁同步电机的模型预测控制研究[J].电源学报,2015,13(4):58-63.
[4] ZHANG Yongchang,YANG Haitao.Torque ripple reduction of model predictive torque control of induction motor drives[C]//Energy Conversion Congress and Exposition,Denver,Colorado:IEEE,2013:1176-1183.
[5] 徐艳平,周钦,雷亚洲,等.永磁同步电机改进占空比模型预测转矩控制方法[J].电气传动,2017,47(5):14-17;44.
[6] 徐艳平,李园园,周钦.永磁同步电机双模型预测转矩控制策略[J].电力电子技术,2018,52(6):37-39.
[7] 徐艳平,钟彦儒.基于占空比控制的永磁同步电机新型直接转矩控制策略[J].电工技术学报,2009,24(10):27-32.