三电平感应电机模型预测直接电流控制策略  

Model Predictive Direct Current Control Strategy for Three Level Induction Motor Drives

作　　者：吴轩钦[1] 曹晓冬[1] 王从刚[1] 

机构地区：[1]中国矿业大学信息与电气工程学院,江苏徐州221008

出　　处：《电机与控制应用》2013年第9期42-45,共4页Electric machines & control application

基　　金：江苏省重大科技成果转化项目(BA2008029)

摘　　要：针对中压大功率感应电机高性能调速控制,对三电平感应电机模型预测直接电流控制(MPDCC)策略进行了研究。根据感应电机离散数学模型,结合三电平拓扑包含的27种开关状态,预测其各开关状态对应系统未来表现。根据控制目标确定目标函数,在线滚动寻优输出使控制目标达最优的开关状态,进行感应电机控制。搭建基于DSP+FPGA的三电平感应电机调速系统试验样机。试验结果验证了MPDCC策略的正确性和有效性。A model predictive direct current control strategy （MPDCC） for induction motor driven by threelevel neutral point clamped inverters was proposed to solve the high performance of medium-voltage high-power induction motor. The future current was predicted by establishing the discrete mathematical model of the induction motor, combined with the three-level topology containing 27 kinds of switch status. According to the control objectives to determine the objective function, online rolling optimization output controlled objective optimal state for induction motor control. The experimental prototype was built based on the DSP ＋ FPGA controllers three-level induction motor speed control system. The experimental results verified the correctness and validity of MPDCC strategy.

关 键 词：三电平感应电机 模型预测控制 直接电流控制 目标函数 

分 类 号：TM461[电气工程—电器]