含光储系统的微电网能量协调控制策略

Coordinated Control Strategy of Microgrid Energy with Optical Storage System

随着分布式光伏储能系统在电力系统中的作用的提升,光储微电网的能量管理及协调控制策略的研究尤为重要。首先,对光储微电网的控制策略进行了研究,主要从DC/DC变换器、DC/AC逆变器和光伏系统控制方式展开研究;其次,搭建了光储微电网的拓扑结构,并对系统的经济效益进行了简单分析;最后,在仿真软件中搭建光储微电网系统模型,仿真光储微电网系统在峰谷电价差机制下的储能蓄电池出力特性,验证本文所提的基于分时电价机制的功率协调控制策略在光储微电网系统中的有效性。

With the increasing role of distributed photovoltaic energy storage systems in power systems,the research on energy management and coordinated control strategies of optical storage microgrids becomes more and more important.First of all,research is carried out from the initial investment,operation and maintenance of the optical storage microgrid system,photovoltaic system power generation subsidies,grid power purchase costs,and power sales revenue to obtain the maximum economic benefit as the goal.Secondly,combining the time-of-use electricity price and load curve,a coordinated control strategy of optical storage power based on the peak-valley price difference is proposed.Finally,the optical storage microgrid system model is built in the simulation software to simulate the optical storage microgrid system at peak.The output characteristics of energy storage batteries under the valley electricity price difference mechanism verify the effectiveness of the power coordination control strategy based on the time-of-use electricity price mechanism proposed in this paper in the optical storage microgrid system.