基于电池电流误差的微网能量管理控制研究  

Energy Management Control of Microgrid Based on Battery Current Error

作　　者：马丙泰 徐庆锋 左江林[1] 吴雪松 MA Bingtai;XU Qingfeng;ZUO Jianglin;WU Xuesong(Guangxi Vocational College of Water Resources and Electric Power,Nanning 530023,China)

机构地区：[1]广西水利电力职业技术学院,广西南宁530023

出　　处：《红水河》2024年第5期66-70,共5页

基　　金：2024年度广西高校中青年科研基础能力提升项目(2024KY1142)。

摘　　要：为解决微电网混合储能系统中超级电容器荷电状态限值管理期间对蓄电池正常工作及直流母线电压的波动影响,笔者提出一种基于蓄电池电流误差的控制策略。通过利用超级电容器限值管理期间获得的电池电流与其实际电流之差,控制超级电容器脉冲触发控制器输入电流信号,维持超级电容器限值管理期间直流电压稳定,降低电池输出电流波动性。算例仿真结果表明,所提出的控制策略能够减缓超级电容器限值管理期间直流母线电压波动,同时能够减少电池输出电流快速波动次数,降低其工作负担。研究结果可为微电网稳定经济运行提供参考。In order to solve the influence of the supercapacitor state of charge limit management on the normal operation of the battery and the fluctuation of the DC bus voltage in the hybrid energy storage system of the microgrid,a control strategy based on the battery current error is proposed.By using the difference between the battery current obtained during the supercapacitor limit management and its actual current,the supercapacitor pulse trigger controller input current signal is controlled to maintain the DC voltage stability during the supercapacitor limit management,and reduce the battery output current fluctuation.The simulation results show that the proposed control strategy can slow down the fluctuation of DC bus voltage during the limit management of supercapacitors,reduce the number of rapid fluctuations of battery output current,and reduce its workload.The research results can provide reference for the stable and economic operation of microgrid.

关 键 词：混合储能系统 限值管理 电池电流误差 直流母线电压 蓄电池 

分 类 号：TM73[电气工程—电力系统及自动化]