光伏电站谐波超标的分析与治理

Analysis and Treatment of Harmonic Exceedance in Photovoltaic Power Station

大唐天镇环翠山光伏电站于2013年12月投产发电,中国电力科学研究院国家能源太阳能发电研发中心于2015年1月5日至16日对大唐天镇环翠山光伏电站进行了电能质量测试,发现35 kV并网点谐波电压、电流超限值。通过对不同运行方式下谐波电压、电流的数据测试和分析,确定了谐波产生的原因,制定了合理的解决方案并经论证及仿真验证后予以实施,彻底解决了电能质量超标问题。

Datang Tianzhen Huancuishan Photovoltaic Power Station was put into operation in December 2013. The National Energy Solar Power R&D Center of China Electric Power Research Institute conducted a power quality test on Huancuishan Photovoltaic Power Station from January 5^th to 16^th, 2015,and it was found that the harmonic voltage and current at 35 kV gridconnected point exceeded the limit. By testing and analyzing the data of harmonic voltage and current under different operating modes, the causes of harmonic exceedance were determined, and solutions were formulated. The solutions were finally implemented after demonstration and simulation. Consequently, the problem was completely solved.