间接矩阵变换器-电机调速系统基于输入电压观测的ZCC-MPC方法  

A Novel ZCC-MPC Strategy with the Input Voltage Observation for the Motor Drive System Fed by an Indirect Matrix Converter

作　　者：王闪闪 牛可 李辉 WANG Shanshan;NIU Ke;LI Hui(Rolling Stock Institute,Zhengzhou Railway Voctional&Technical College,Zhengzhou 451460,Henan,China;Zhengzhou Research Institute of Mechanical and Electrical Engineering,Zhengzhou 450000,Henan,China)

机构地区：[1]郑州铁路职业技术学院机车车辆学院,河南郑州451460 [2]郑州机电工程研究所,河南郑州450000

出　　处：《电气传动》2022年第11期10-16,共7页Electric Drive

基　　金：河南省科技攻关计划(202102210159)。

摘　　要：为降低间接矩阵变换器-异步电机调速系统采样电路成本,简化换流过程并提高转换效率,提出一种新型的基于输入电压观测的零电流换流-模型预测控制(zero current commutation model predictive control,ZCC-MPC)方法。利用输入LC滤波器模型设计的输入电压观测器代替传统三块输入电压采样调理电路,并且,在每个采样周期内采用逆变器级固定占空比的开关状态组合,保证了整流级换流过程直流母线电流为零,简单两步换流替代传统复杂四步换流。仿真和实验结果均可表明,基于输入电压观测的零电流换流-模型预测控制方法可实现系统输入输出电流波形良好正弦,电机动静态性能良好,网侧功率因数为1,同时降低了硬件成本,IMC换流过程更加可靠。In order to reduce the high cost of sampling circuits,simplify commutation procedure and improve the conversion efficiency of the indirect matrix converter,a zero current commutation model predictive control(ZCC-MPC)strategy with the input voltage observation was proposed. The input voltage observer was designed by using the model of the input LC filter,hence,three sampling and conditioning circuits for input phase voltages were canceled. The switching state combination with fixed duty cycle for the inverter stage was adopted in each sampling period,which could ensure the zero DC-bus current during the whole commutation procedure in the rectifier stage.A simple two-step current commutation method was adopted instead of complex four-step commutation. Simulation and experimental results show that sinusoidal input/output currents,good steady state/dynamic performance and unity input power factor are achieved based on the proposed strategy. As well,the hardware cost is lowered and the IMC commutation reliability is enhanced.

关 键 词：间接矩阵变换器 模型预测控制 输入电压观测器 零电流换流 

分 类 号：TM46[电气工程—电器]