多模块并联型高压直流电子负载功率控制电路设计  

Design of Multi-module Parallel High-voltage DC Electronic Load Power Control Circuit

作　　者：熊佳民 江学焕[1] Xiong Jiamin;Jiang Xuehuan(School of Electrical&Information Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院电气与信息工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2023年第4期37-41,共5页Journal of Hubei University Of Automotive Technology

基　　金：湖北省中央引导地方科技发展专项(2018ZYYD007);湖北省教育厅科学技术研究项目(Q20161805)。

摘　　要：为满足新能源汽车电池测试需求,采用多模块并联的方法设计了高电压直流电子负载功率控制电路,主要包括恒压控制、恒流控制、恒阻控制、电压采集、电流采集、过压欠压保护、按键显示等电路。利用Multisim软件仿真确定电路参数并生成PCB板,对设计的控制电路进行测试。测试结果表明:直流电子负载控制电路实现了电压3~600 V可调、相对误差为0.23%,电流0~50 A可调、相对误差为0.28%。系统整体散热良好,可稳定运行。To meet the test requirements of new energy vehicle batteries,the multi-module parallel method was used to design a high-voltage direct current(DC)electronic load power control circuit.The circuits with constant voltage control,constant current control,constant resistance control,voltage ac⁃quisition,current acquisition,overvoltage and undervoltage protection,and button displays were de⁃signed.The circuit parameters were determined through Multisim software simulation,and a printed cir⁃cuit board was generated.The designed control circuit was tested,and the experimental results show that the voltage of the DC electronic load control circuit is adjustable in the range of 3-600 V,and the relative error is 0.23%.The current is adjustable in the range of 0-50 A,and the relative error is 0.28%.The whole system has good heat dissipation conditions and can stably operate.

关 键 词：高电压直流电子负载 功率控制电路 多模块并联 电池测试 

分 类 号：TN710.2[电子电信—电路与系统]