变电站大功率并联直流蓄电池组主动均流仿真研究  

Simulation Study of Active Current Sharing of High-power Parallel DC Battery Pack in Substations

作　　者：陈思超 田海鹏 黄烈江 沈狄龙 安韵竹[2] 潘国荣 CHEN Sichao;TIAN Haipeng;HUANG Liejiang;SHEN Dilong;AN Yunzhu;PAN Guorong(Hangzhou Xinmei Complete Electric Manufacturing Co.,Ltd.,Hangzhou 310000,China;School of Electrical and Electronic Engineering,Shandong University of Technology,Zibo 255000,China)

机构地区：[1]杭州欣美成套电器制造有限公司,浙江杭州310000 [2]山东理工大学电气与电子工程学院,山东淄博255000

出　　处：《电工技术》2024年第1期1-6,共6页Electric Engineering

基　　金：浙江大友集团有限公司科技项目(编号KJ2109)。

摘　　要：针对变电站大功率并联直流系统方案及均流技术方案进行研究,选出最适用于变电站的并联型直流供电系统方案,然后分析在并联直流系统下的均流技术和均流控制,提出一种改进的平均电流法,最后通过MATLAB/Simulink搭建电路仿真模型及控制回路仿真模型,完成系统方案及均流方案的设计与仿真。仿真结果表明,混合型并联方案可靠性高、充放电效率高且具有冗余度,所以选择混合型并联方案作为并联型直流供电系统方案;改良的均流系统的闭环控制满足控制回路的稳定性要求,能快速响应均流要求,具有相当高的抗干扰能力,且改良的平均电流法均流精度高、可靠性好。The present work was focused on high-power parallel DC system scheme and current sharing technology scheme of substations.It selected the most suitable parallel DC supply scheme for substations,analyzed current sharing technology and current sharing control under parallel DC,and proposed an improved average current method.It finally modeled the circuit and the control loop by MATLAB/Simulink,and conducted design and simulation of the system scheme and the current sharing scheme.The results showed that the hybrid parallel scheme has high reliability,high charge and discharge efficiency,and appropriate redundancy,so it is selected as the parallel DC supply scheme.The closed-loop control of the improved current sharing system can meet the stability requirements of control loop,respond quickly to current sharing demand,and tolerate a very high interference,hence the improved average current method has high current sharing accuracy and good reliability.

关 键 词：变电站 并联直流供电系统 多充放电回路 主动均流 

分 类 号：TM753[电气工程—电力系统及自动化]