光伏电站接入方式对局部电网影响及改进方案的研究

Study on Influence of Connecting Way of Photovoltaic Station to Local Power Grid and on Relative Improving Methods

本文结合某光伏电站实际接入系统方式及运行状况,分析了该电站接入方式对局部电网的影响。针对实际的问题,提出了几种解决方案,通过理论分析、潮流仿真计算、经济论证,提出了改变光伏电站接入系统的方式来解决并网点电压越限和出力受限的问题,对确保电力系统的供电质量及安全经济运行具有十分重要的意义。

In this paper, on the basis of actually connection way to the system and operation condition of the station, the influence of connection way of certain photovoltaic power station on local power grid is analyzed. As for the actual problem, several kinds of solutions are proposed. Such issue as changing the way of connection system for photovohaic station to solve voltage over limit and PV out- put restriction of the grid connection point, throughout theoretical analysis, power flow simulation calculation and economic validation are proposed, which have great significance in ensuring power supply quality, safe and efficient operation.