模块化多电平矩阵变换器输入侧的无源控制策略  

Passivity-based Control Strategy for Input Side of Modular Multilevel Matrix Converter

作　　者：程启明 马信乔 江畅 赵淼圳 CHENG Qiming;MA Xinqiao;JIANG Chang;ZHAO Miaozhen(Shanghai Key Laboratory of Power Station Automation Technology(College of Automation Engineering,Shanghai University of Electric Power),Shanghai 200090,China)

机构地区：[1]上海市电站自动化技术重点实验室(上海电力大学自动化工程学院),上海市200090

出　　处：《电力系统自动化》2021年第11期136-143,共8页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(61905139)。

摘　　要：模块化多电平矩阵变换器(M3C)在风力发电中具有突出优势,可实现从低频交流电到工频交流电的AC/AC变换。为了解决比例-积分(PI)控制调节参数多、谐波含量高等问题,文中依据无源控制理论,分析了M3C输入侧数学模型的无源性及稳定性,提出其无源控制策略。通过MATLAB/Simulink建模仿真,验证了所提无源控制策略的正确性和优越性,并且模拟了输入侧频率变化、输出侧负载变化时,通过无源控制策略实现M3C的变频及变负载运行。相比于PI控制,所提无源控制响应更快、调节参数更少、谐波含量更低,整体控制效果更好。The modular multilevel matrix converter(M3C)has outstanding advantages in wind power generation,which can realize AC/AC conversion from low-frequency alternating current to power-frequency alternating current.In order to solve the problems of too many adjustment parameters and high harmonic contents of proportional-integral(PI)control,this paper analyzes the passivity and stability of the input-side mathematical model of M3C based on the passivity-based control theory,and proposes its passivity-based control strategy.Through the modeling and simulation in MATLAB/Simulink,the correctness and superiority of the proposed passivity-based control strategy are verified.When the input-side frequency and the output-side load change,the operation of M3 C with variable frequency and load are realized through the passivity-based control strategy.Compared with PI control,the proposed passivity-based control has faster response,less adjustment parameters,lower harmonic content,and its overall control effect is better.

关 键 词：模块化多电平矩阵变换器 无源控制 比例-积分控制 风力发电 

分 类 号：TM46[电气工程—电器]