不平衡负载下光伏微网分布式储能调度仿真  

Simulation of Distributed Energy Storage Scheduling of Photovoltaic Micro-Grid under Unbalanced Load

作　　者：马裕泽 李涛[1] MA Yu-ze;LI Tao(North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学,北京102206

出　　处：《计算机仿真》2025年第3期123-127,共5页Computer Simulation

基　　金：三峡大学科技项目(HZ2023072)。

摘　　要：在不平衡负载光伏微网中,光伏发电的输出功率与负载需求之间往往存在不匹配的情况,导致电网电压和频率的波动,进而影响电能质量。为此,分布式储能系统与光伏发电系统相结合,通过存储和释放电能来平衡电网中的供需关系。由此,研究不平衡负载光伏微网分布式储能协调调度方法。构建不平衡负载光伏微网分布式储能协调调度的目标函数,并对分布式储能输出电量设置约束条件。利用Tent混沌映射、Levy飞行、随机游走策略改进麻雀搜索算法,在约束下求解目标函数,避免陷入局部最优,实现分布式储能的协调调度。测试结果表明,设计方法在功率平衡方面表现出色,功率波动较为合理,既保障了功率平衡,也反映了系统的灵活性和适应性,在电价的波动下电池总发电功率在15秒后逐渐步入平稳,实现基本供需平衡,且其电池总发电功率低。In an unbalanced load photovoltaic microgrid,there is often a mismatch between the output power of photovoltaic power generation and the load demand,which leads to fluctuations in grid voltage and frequency,thus affecting power quality.Therefore,the distributed energy storage system is combined with the photovoltaic power generation system to balance the supply and demand relationship in the grid by storing and releasing electric energy.Therefore,the coordinated scheduling method of distributed energy storage in photovoltaic microgrids with unbalanced loads is studied.The objective function for the coordinated scheduling of distributed energy storage in unbalanced load PV microgrids is established,and constraints are set for the output power of the distributed energy storage.The Sparrow search algorithm is improved by using Tent chaotic mapping,Levy flight and random walk strategy,and the objective function is solved under constraints to avoid falling into local optimization and achieve coordinated scheduling of distributed energy storage.The test results show that the design method performs well in power balance,and the power fluctuation is reasonable,which not only guarantees the power balance,but also reflects the flexibility and adaptability of the system.Under the fluctuation of electricity price,the total power generated by the battery gradually becomes stable after 15 seconds,realizing the basic balance between supply and demand,and the total power generated by the battery is low.

关 键 词：不平衡负载 光伏微网 分布式储能 协调调度 目标函数 改进麻雀搜索算法 

分 类 号：TM734[电气工程—电力系统及自动化]