非正常工况下双空间矢量调制矩阵变换器策略研究

摘要

使用双空间矢量控制的矩阵变换器的等效数学模型,建立带有输出滤波器的矩阵变换器的等效电路.设计了dq坐标系下矩阵变换器的PI闭环控制系统,给出了系统在电网电压波动和负载突变时的控制方法,减小了系统在非正常工况下的输出、输入干扰.对非正常工况下运行控制策略进行了仿真和实验验证.%An equivalent numerical simulation model that can describe the matrix converter using modulation stratege of dual space vector is constructed.The equivalent circuit of matrix converter with output filter is analyzed.Closed-loop control system with PI controller is designed.Control methods while voltage fluctuation and load break are presented,which decease the input and output disturbance on abnormal condition.The control strategy on abnormal condition is verified through simulation and experiment.