三相电压型整流器模型电压预测控制  

Model Voltage Predictive Control for Three-Phase Voltage Source Rectifier

作　　者：王萌[1] 施艳艳[1] 沈明辉 王海明 逯亚莹 祁明艳 

机构地区：[1]河南师范大学物理与电子工程学院,新乡453007 [2]国网新乡供电公司,新乡453000

出　　处：《电工技术学报》2015年第16期49-55,共7页Transactions of China Electrotechnical Society

基　　金：国家自然科学基金(51207104);河南省教育厅科学技术研究重点项目(13B470083);河南师范大学博士科研启动基金(01026500122;01026500119)资助项目

摘　　要：模型电流预测控制在每个采样周期内对所有开关状态下的输出电流进行预测和评估,算法运算量大,对控制器性能要求较高。本文提出了一种用于三相电压型整流器(VSR)的模型电压预测控制算法。根据模型电流预测的逆过程获得参考电压值,将矢量平面分为7个部分,并判断参考电压值所在区域。根据参考电压所在区域获得最优的电压矢量作为控制器输出。该方法无需循环寻优过程,预测耗时少,易于实现。通过实验对所提出的模型电压预测控制方法进行分析,验证了所提算法具有优良的静态、动态性能同时可显著减少模型预测控制的计算耗时。As for model current predictive control, the output current of all switch states is needed to be predicted and evaluated in each sampling period. It requires complex calculation and high-performance controller. A model voltage predictive control algorithm is proposed in this paper and used for the control of three-phase voltage source rectifier （VSR）. Based on the inverse process of the model current prediction, the reference voltage can be calculated. The vector plane is then divided into seven sections and the corresponding section of the reference voltage is determined, according to which the optimal voltage vector is obtained and utilized as the controller output. The proposed method does not require loop optimization and the prediction time is short. Also, the control method is simple and easy to be implemented. Experiments are conducted to analyze the presented model voltage predictive control algorithm. The results show that the proposed algorithm has excellent static/dynamic state performances and obviously reduces the calculation time of the model predictive control.

关 键 词：三相电压型整流器 模型电流预测控制 模型电压预测控制 预测耗时 

分 类 号：TM46[电气工程—电器]