交直流配电网用模块化变换器模型预测控制  

Model predictive control of modular converter in AC/DC distribution network

作　　者：侯磊 刘洋 田二胜 冯毅 吴杨 陈德志[5] HOU Lei;LIU Yang;TIAN Er-sheng;FENG Yi;WU Yang;CHEN De-zhi(Xiong’an New Area Electric Power Co.Ltd.,State Grid Hebei Electric Power Co.Ltd.,Baoding 071000,China;Xingtai Electric Power Co.Ltd.,State Grid Hebei Electric Power Co.Ltd.,Baoding 071000,China;Hebei Xiong’an Xu Electric Power Integrated Energy Technology Co.Ltd.,XJ Group Corporation,Baoding 071000,China;Electric Power Research Institute,Sate Grid Ningxia Electric Power Co.Ltd.,Yinchuan 750000,China;Shool of Electrical Engineering,Shenyang University of Technology,Shenyang 110870,China)

机构地区：[1]国网河北省电力有限公司雄安新区供电公司,河北保定071000 [2]国网河北省电力有限公司邢台供电公司,河北保定071000 [3]许继电气股份有限公司河北雄安许继电科综合能源技术有限公司,河北保定071000 [4]国网宁夏电力有限公司电力科学研究院,银川750000 [5]沈阳工业大学电气工程学院,沈阳110870

出　　处：《沈阳工业大学学报》2023年第1期12-16,共5页Journal of Shenyang University of Technology

基　　金：辽宁省科技厅项目(20180550037);国家电网有限公司科技项目(B104XQ190110)。

摘　　要：针对交直流配电网模块化变换器IGBT开关状态组合多,计算复杂的问题,提出基于改进的子模块电容电压控制算法.利用MMC相电流、环流和子模块电容电压建立目标函数,根据改进子模块电容电压控制算法,消除了目标函数的权重系数,无需计算所有可能开关状态组合的目标函数,简化了传统MPC控制策略,降低了控制算法的计算复杂性.实例分析证明该方法能够在保证计算精度的同时,有效降低计算量.For the IGBT switch state combination of the modular converter in AC-DC distribution networks,a modified submodule capacitance voltage control algorithm was proposed.By using the established MMC phase current,circulation and submodule capacitance voltage,objective functions were accomplished.With the as-proposed method,the weight coefficient of the target function was eliminated,it was not necessary to calculate all possible switching state combination of target functions,the traditional model predictive control(MPC)strategy was simplified,and the computational complexity of the control algorithm was reduced.An example analysis proves that the as-proposed method can effectively reduce the computational amount while ensuring the calculation accuracy.

关 键 词：交直流混合配电网 模块化多电平换流器 开关状态 电压平衡控制 模型预测控制 子模块 电容电压 权重系数 控制策略 

分 类 号：TM46[电气工程—电器]