低开关频率的五相永磁同步电机有限集模型预测电流控制算法  

Finite control set model predictive current control scheme with low switching frequency for five-phase permanent-magnet synchronous machines

作　　者：张靖 武雪松 李婷婷 余彬[2] 宋文胜[2] ZHANG Jing;WU Xue-song;LI Ting-ting;YU Bin;SONG Wen-sheng(Chengdu Yunda Technology Company Limited, Chengdu 611756, China;School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China)

机构地区：[1]成都运达科技股份有限公司,四川成都611756 [2]西南交通大学电气工程学院,四川成都611756

出　　处：《电工电能新技术》2021年第6期64-72,共9页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金-高铁联合基金项目(U1934204)。

摘　　要：多相电机广泛应用于航空与船舶推进等领域,具有容错性能强、功率密度高等显著优点。本文以五相永磁同步电机(PMSM)为研究对象,提出了一种适用于大功率应用场合的低开关频率FCS-MPCC算法。首先,深入分析了电流轨迹的变化规律,并结合电流参考值设计给定电流区域,根据电流预测值对电压矢量进行初步筛选。接着,在电流预测中引入线性外推环节,并构造了包含外推步长与开关切换次数的评价函数,然后根据评价函数选取最优电压矢量。最后,实验结果验证了所提算法能在保持快速动态性能的情况下有效降低开关频率。With the merits of strong fault tolerance and high power density,multi-phase machines have been widely used in aerospace and ship propulsion.In the paper,a low switching frequency FCS-MPCC method suitable for large power application is proposed with the five-phase PMSM as the studying object.Firstly,the variation rules of the motor current is analyzed,the range of current values is designed in accordance with the reference current values,and the voltage vectors are preliminary selected with the current values.Then,in the current forecast the linear extrapolation is used,and the evaluation function containing extrapolation steps and switching numbers is constructed.Finally,the optimized voltage vectors are selected according to the evaluation function.The experimental results have verified the validity of the proposed MPCC scheme.

关 键 词：五相永磁同步电机 模型预测控制 有限控制集 开关频率 动态响应 

分 类 号：TM461[电气工程—电器]