新能源并网对电力系统电能质量的影响

The Influence of New Energy Grid Connection on Power Quality of Power System

近年来,国家大力发展太阳能、风能、生物质能源等清洁可再生资源,新能源接入到原有的配电网中,改变了配电网潮流单向供电模式。由于新能源具有间歇性和不可确定性,新能源并网以后,影响到原有电网供电质量。因此,简单分析了电力质量的含义,并探讨了新能源并网造成电网电压偏差、谐波,影响到电力系统运行频率,并造成信息孤岛,影响到电力系统运行的安全性和稳定性。

In recent years,China has vigorously developed solar energy,wind energy,biomass energy and other clean renewable resources,new energy into the original distribution network,change the distribution network trend one-way power supply mode.Since new energy is intermittent and uncertain,it will affect the supply quality of the original power grid.This paper briefly analyzes the meaning of power quality,and discusses the new energy grid grid voltage deviation,harmonic,affect the power system operating frequency and information island,affect the security and stability of power system operation.