光伏电站并网运行典型问题分析

Analysis on Typical Issues of Photovoltaic Power Stations Connected to Grids

光伏电站并网运行使得区域电网成为有源型电网,光伏发电具有间歇性、随机性、波动性等特点,会对电网安全运行产生影响。本文基于江苏电网部分光伏电站长期实测运行数据,以实际数据为基础,分析了光伏电站在有功潮流、无功电压、电能质量等方面存在的典型问题,并进行了比对分析和得出了一些结论,对保障光伏电站并网运行安全和提升光伏发电效率具有参考价值。

The integration of photovoltaic power stations makes some regional power grid become active power grid,the power of photovoltaic power station has the characteristics of intermittency,randomness,volatility,etc. which has a significant impact on all aspects of the operation of the power grid. Based on the actual operation data of photovoltaic power station connected to the power grid in Jiangsu power grid,this paper analyzes typical issues of photovoltaic power stations in active power flow,reactive power and voltage,power quality. Contrastive analysis is carried out and some conclusion is drawn in this paper,which has a certain reference value to ensure the safe and stable operation of photovoltaic power generation and improve the efficiency of photovoltaic power generation.