模块化多电平矩阵变换器一致渐近稳定控制器设计  

Design of Global Asymptotical Stable Control Scheme for Modular Multilevel Matrix Converter

作　　者：夏超英 门旭明 于佳丽 XIA Chaoying;MEN Xuming;YU Jiali(School of Electrical and Information Engineering,Tianjin University,Nankai District,Tianjin 300072,China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津市南开区300072

出　　处：《电网技术》2021年第7期2692-2699,共8页Power System Technology

摘　　要：模块化多电平矩阵变换器(modular multilevel matrix converter,M3C)是一种应用于高压大功率领域的交交变换器拓扑。现有的多环控制方案需要调整的参数较多,并且没有严格的稳定性证明,不能保证闭环系统全局稳定。为此,建立了三相静止坐标系下M3C系统的状态空间模型,并应用Lyapunov稳定性理论设计了状态误差反馈控制算法,可保证系统的全局渐近稳定,参数调整简单,控制性能良好。最后,仿真和实验结果验证了所设计的M3C控制策略的性能。Modular multilevel matrix converter(M3C)is a kind of AC/AC converter topology applied in high voltage and high power fields.Many parameters need to be adjusted in the current multi-loop control scheme and there is no strict stability proof for them,which can not guarantee the global stability of the closed-loop system.In this paper,the state space model of M3C system is established,and the state-error feedback controller is designed according to the Lyapunov theory.This method can ensure the global asymptotic stability of the system,and the parameters can be adjusted in a simple method and the control performs well.The simulationand experimental results verifies the feasibility and effectiveness of the designed M3C control strategy.

关 键 词：模块化多电平矩阵变换器 状态误差反馈控制 一致渐近稳定性 

分 类 号：TM721[电气工程—电力系统及自动化]