光伏逆变器低电压穿越控制策略  

Low Voltage Ride Through Control Strategy for PV Inverter

作　　者：袁晓玲[1] 宋鹏飞[1] 范发靖[1] 陈宇[1] 

机构地区：[1]河海大学能源与电气学院,江苏南京210024

出　　处：《电力电子技术》2013年第3期67-69,共3页Power Electronics

摘　　要：研究了光伏逆变器低电压穿越(LVRT)特性,针对光伏电站在并网点电压突然跌落时对电网安全稳定运行带来的不利影响,提出一种单级式光伏逆变器LVRT控制策略。该策略通过对无功、有功电流的协调控制,实现了LVRT,同时保持了较高的并网电流质量。仿真和实验结果验证了该控制策略的可行性。The low voltage ride through （LVRT） characteristic of photovohaic （PV） inverter is presented.Viewing the adverse effects that the PV power plant suddenly cuts off the grid owing to voltage dip, the LVRT performance of single-stage PV inverter is proposed.The strategy coordinates the reactive and active current to maintain a high grid current quality during LVRT.Simulation and experimental results show the feasibility of the control strategy.

关 键 词：逆变器 低电压穿越 光伏 

分 类 号：TM464[电气工程—电器]