一种级联H桥储能变流器节能测试平台设计  

A Design of Energy Saving Test Platform for Cascaded H Bridge Power Conversion System

作　　者：王长华 梁顺发 胥军[1] 王邦文 龙朝晖 WANG Changhua;LIANG Shunfa;XU Jun;WANG Bangwen;LONG Zhaohui(SUNTEN Electrical Equipment Co.,Ltd.,Foshan 528300,China)

机构地区：[1]顺特电气设备有限公司,广东佛山528300

出　　处：《电工技术》2025年第5期83-86,共4页Electric Engineering

摘　　要：针对35 kV三相级联H桥储能变流器的研制、试验、生产等环节的测试与故障诊断需求,选用背靠背H桥作为基本测试单元,采用多绕组变压器保证各级直流电源的独立性,低压侧H桥模拟电池簇功能;结合三相级联H桥储能变流器系统参数,设计了节能测试平台,低压侧采用PWM整流器控制,级联侧采用PQ解耦控制。通过软件仿真及动态模拟试验,验证所设计的测试平台无需电池簇即可实现级变流器的测试,为35 kV级联储能变流器初次带真电池挂网运行提供了安全支撑。For the testing and fault diagnosis requirements of power conversion system of 35 kV three-phase cascaded H bridge.A back-to-back H bridge is chose as the basic test unit.Using multi winding transformers to ensure the independence of each DC power supply,battery cluster function is simulated by low voltage side H-bridge.Designing a energy saving test platform for power conversion system based on three-phase cascaded H bridge considering system parameters.Low voltage side H-bridge is controlled by PWM and cascaded H bridge is controlled by PQ decoupling.The designed testing platform without battery cluster is practicability through simulation and dynamic experiments,provided safety support for the first grid connected operation of cascaded inverters with real batteries.

关 键 词：变流器 级联H桥 测试平台 能量互馈 背靠背 

分 类 号：TM46[电气工程—电器]