摘要
分析了三相光伏并网逆变器的电路拓扑结构、数学模型和控制结构。控制结构采用同步旋转坐标系下的基于PI控制,采用电压外环和电流内环双闭环控制,实现有功功率与无功功率解耦控制,能够灵活方便地实现单位功率因数并网。
The circuit topology structure, mathematical model and control structure of a three-phase photovoltaic grid connected inverter are analyzed. The control structure adopts synchronous rotation cordinate system based on PI control, which consists of the double closed loop control of the outer voltage loop and inner current loop, achieving decoupling control of active power and reactive power. It can agilely achieve unit power factor connected grid.
出处
《电气开关》
2012年第3期59-60,64,共3页
Electric Switchgear
关键词
光伏
并网
逆变器
控制
photovoltaic
grid-connected
inverter
control
