摘要
本文研究了基于H桥级联的链式的静止同步补偿器(STATCOM),分析了其主电路拓扑、工作原理、调制技术和控制策略。在STATCOM数学模型的基础上分析了功率解耦控制算法;根据能量守恒原理,分析了导致直流侧电容电压不平衡的因素,引入了分层式直流侧电容电压控制算法。最后在MATLAB软件中对控制算法进行了仿真,仿真结果验证了控制策略的可行性。
This paper studies the main circuit topology, principle, modulation strategy and the control method of the static synchronous compensator(STATCOM) based on H-bridge cascaded. Power decoupling control algorithm is studied based on the methematical model of STATCOM. According to the principle of power conservation, the unbalance factor of the DC side is analyzed. Then the distibuted DC-voltage control algorithm is proposed, whitch is divided into upper and lower control section. Finally, the validity of these algorithms are verified by the simulation results, whitch implement on the MATLAB.
出处
《软件》
2014年第7期129-134,共6页
Software
关键词
级联多电平
功率解耦控制
分层式控制系统
静止同步补偿器
cascaded multilevel
Power Decoupling Control
distributed control system
static synchronous compensatory
