提升光伏电站并网电能质量的研究

Study on Improving Grid-Connected Power Quality of Photovoltaic Power Station

为进一步解决环境污染和资源紧张现状,2008年以来我国加大了对新能源发电的重视力度,推动了水力、风力以及光伏等多种发电形式的发展。主要从光伏发电出发,分析光伏电站并网过程中的电能质量问题,如电压变化和谐波波动等。在安全性、可靠性以及稳定性需求基础上,借助调整连接方式、抑制谐波装置等实现并网中电能质量的优化,旨在改善光伏电站并网对电能质量的影响。

In order to further solve the environmental pollution and resource shortage,China has increased the emphasis on new energy power generation since 2008,and promoted the development of hydropower,wind power,photovoltaic and other forms of power generation.This paper mainly starts from photovoltaic power generation,analyzes the power quality problems in the process of photovoltaic power station grid-connection,such as voltage changes,harmonic fluctuations,etc.Based on the requirements of safety,reliability and stability,the power quality in gridconnection is optimized by means of connection mode adjustment and harmonic suppression device,aiming at improving the influence of photovoltaic power station grid-connection on power quality.