新疆高光伏并网电网侧储能容量配置分析

光伏发电是可再生能源利用的重要组成部分,近年来发展迅速,不可避免地出现了高弃光率问题。针对新疆高比例光伏并网背景下,可调控有功出力不足导致的高比例可预测弃光问题,在分析新疆光伏出力特性及储能系统控制特性的基础上,推导了电网侧储能功率、容量配置与光电利用率的关系。依据历史数据进行仿真验证,并计算了新建300 MW光伏电站或300 MW/600 MW·h储能站两种情况下光电利用率变化,验证了该方法在光伏或储能增长情况下均适用。

Analysis of Grid-side Energy Storage Capacity with High Proportion Solar Power in Xinjiang

The solar power generation is an important part of renewable energy utilization.In recent years,it develops rapidly,and inevitably causes the problem of high solar power abandonment rate.Under the background of high proportion solar power grid connection in Xinjiang,the problem of high proportion predictable solar power abandonment caused by insufficient controllable active power output is studied.Based on the analysis of solar energy output characteristics and control characteristics of energy storage system in Xinjiang,the relationship between the energy storage power and capacity configuration on the grid side and the solar power utilization ratio is derived.The relationship is simulated and verified with real historical data.The changes of solar power utilization ratio are calculated under the conditions of newly built 300 MW solar power station or 300 MW/600 MW·h energy storage station.It is verified that the method is applicable in the case of the increase of solar power or energy storage capacity.