LC滤波型逆变器加权双矢量模型预测控制方法  

Weighted Double-vector Model Predictive Control Method for LC-filtered Inverters

作　　者：郭磊磊 陶自恒 李琰琰 朱虹 金楠 GUO Leiei;TAO Ziheng;LI Yanyan;ZHU Hong;JIN Nan(College of Electrical and Information Engineering,Zhengzhou University of Light Industry,Zhengzhou 450002,China;China Energy Engineering Group Anhui Electric Power Design Institute Co.,Ltd.,Hefei 230601,China)

机构地区：[1]郑州轻工业大学电气信息工程学院,河南郑州450002 [2]中国能源建设集团安徽省电力设计院有限公司,安徽合肥230601

出　　处：《智慧电力》2023年第12期94-100,共7页Smart Power

基　　金：国家自然科学基金资助项目(U2004166);河南省科技攻关计划资助项目(212102210021,232102241026)。

摘　　要：随着新能源技术的发展,模型预测控制(MPC)被广泛应用于LC滤波型电压源逆变器系统中。针对常规调制双矢量MPC策略中矢量作用时间不可灵活调节,导致不能实现控制误差最小化的问题,提出一种改进的电压矢量作用时间可调的加权双矢量MPC方法。通过在双矢量作用时间中引入可变权重因子m作为比例因子,以最小化代价函数为目标计算该可变权重因子m的值,求得加权双矢量作用时间以实现最优控制。实验分析表明,所提方法具有更好的电压跟踪能力,可降低LC滤波型电压源逆变器输出电压的总谐波失真(THD)值。With the development of new energy technology,model predictive control(MPC)is widely used in LC-filtered voltage source inverter system.Targeting the problem that the control error cannot be minimized due to the inflexibility of vector action time adjusting in conventional double-vector modulation MPC strategy,the paper proposes an improved weighted double-vector MPC method with adjustable voltage vector action time.By introducing variable weight factor m in the double-vector action time as scale factor,the value of the variable weight factor m is calculated with the goal of minimizing the cost function,obtaining the weighted double-vector action time to achieve the optimal control.Experimental analysis shows that the proposed method has better voltage tracking ability and can reduce the total harmonic distortion(THD)value of output voltage of the LC-filtered voltage source inverter.

关 键 词：LC滤波型电压源逆变器 加权双矢量 可变权重因子 模型预测控制 

分 类 号：TM464[电气工程—电器]