光伏发电系统并网点电压升高调整原理及措施探讨

Discussion on Principles and Measures of Voltage Rise Regulation Grid Connection Point of Photovoltaic Power Generation System

为了解决光伏发电系统并网运行中存在冲突、出现潮流和逆流而导致电力系统电压升高、输配电设备损耗的问题,分析了光伏发电系统并网运行的实际情况以及电压升高的原因,分别从有功电流电压调整和无功电流电压调整两个方面讨论了电压升高调整原理及其相应措施,并通过实验验证了电压升高调整原理,指出该研究有助于科学合理地调整和处理光伏发电系统并网点电压升高问题,保障光伏发电系统并网运行良好。

In this paper, in order to solve the problems of voltage rise of electrical power system and wastage of power transmission and distribution equipment caused by conflict, flow and reverse flow, the author analyzed actual situation of grid-connected operation and reasons of voltage rise, and discussed principles of voltage rise adjustment and corresponding measures from two aspects of active current voltage regulation and reactive current voltage regulation. The principles of voltage rise adjustment was verified through experiments. Finally, the author pointed out that this research was helpful to scientifically and reasonably adjust deal with problems of voltage rise of grid-connected point, and ensure good operation grid connection of photovoltaic power generation system.