考虑间歇性负荷的光储微网储能的优化配置技术研究

Research on Optimized Energy Storage Allocation Technology of PV-Storage Microgrid with Intermittent Load

由于在含有间歇性负荷的光伏微电网中,光伏电源的随机性和负荷的间歇性,对微电网的稳定运行产生了极大的不安全因素,因此,本文提出了一种经济性和技术性双优的储能容量配置方法.以微电网运行费用最低、网内负荷波动最小为目标函数,采用改进粒子群算法求解最优储能配置容量;最后,通过实际算例,验证了本文所提的优化方案,提高了微电网的稳定性和经济性.

Because of the large peak-to-valley difference between intermittent loads and the randomness of distributed photovoltaic power output,the pv-storage microgrid with intermittent loads needs to be equipped with large-capacity energy storage devices to maintain the stable operation of the microgrid and improve its power supply capacity.This paper firstly analyzes the different types of intermittent loads and their adverse effects on voltage stability when they are connected to the microgrid.Then,with the minimum operating cost of the microgrid as the objective function and the minimum power point fluctuation as the constraint condition,the improved particle swarm algorithm(IPSO)is used to solve the energy storage configure the optimal value of the capacity.Finally,verifying with actual examples that the pv-storage microgrid with intermittent load,it uses this method to configure the capacity,which can not only reduce the operating cost of the entire microgrid,but also reduce power fluctuations in the microgrid.