摘要
近几年来伴随着光伏设备装机容量的扩大,太阳能发电供电比重越来越大,当电网发生故障或电压暂降时,光伏阵列可能解列给电网带来不稳定,甚至造成电网的全面瘫痪,综述了3种光伏逆变器低电压穿越的解决方案和控制策略,重点分析了基于控制无功电流实现电压支撑的解决方案。
With the expansion of installed capacity of photovoltaic equipment in recent years, solar power generation presents an ever-growing proportion in the total power supply. However, when a failure happens to the power grid, or voltage dips, the PV array may step out to bring instability to the grid or even cause the total paralysis of the grid. This paper overviews three kinds of photovohaic inverter through the low voltage solutions and control strategies with a focus on analyzing the voltage support solution based on the reactive current control.
出处
《电网与清洁能源》
2011年第8期65-68,73,共5页
Power System and Clean Energy
基金
十一五国家科技支撑项目(2007BAA12B03)
关键词
低电压穿越
光伏
太阳能
电压支撑
low voltage ride through
photovoltaie
solar energy
voltage support
