全桥MMC型直流融冰技术功率模块直流电容电压纹波分析  

Analysis of Sub-module Capacitor Voltage of Full Bridge MMC-based Deicing Technology

作　　者：许逵 马晓红 胡鹏飞[2] 曾华荣 梁一桥 毕仁明 XU Kui;MA Xiaohong;HU Pengfei;ZENG Huarong;LIANG Yiqiao;BI Renming(Guizhou Power System Research Institute,Guiyang 541000,China;College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China;Zhejiang Guirong Xieping Technology Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]贵州电网电力科学研究院,贵阳541000 [2]浙江大学电气工程学院,杭州310027 [3]浙江桂容谐平科技有限责任公司,杭州310000

出　　处：《高电压技术》2021年第2期596-602,共7页High Voltage Engineering

基　　金：贵州电网公司科技项目(GZKJXM20181778)。

摘　　要：对一种基于全桥型MMC的直流融冰装置的功率模块直流侧电压进行了分析研究,推导出了功率模块直流侧电压波动和直流融冰电流、电压调制比、模块直流电容值之间的关系公式。并在此基础上推导出了该电压波动的最大值。为全桥MMC型融冰装置的设计、计算提供了理论依据。在PSCAD环境下建立了全桥MMC型直流融冰装置的仿真模型,对所推导的公式进行仿真验证,并且在一台工业样机上进行了试验,仿真和试验的结果验证了所推导公式的正确性。The sub-module capacitor voltage of a DC deicing divice based on the full bridge MMC was analyzed and investigated in this paper.Moreover,a relation equation is derived to describe the relationship between the voltage fluctuation of sub-module DC side and the DC deicing circuit,voltage modulation raio,the dc current,and the capacitance.Based on this equation,the solution of the maximum voltage fluctuation of the sub-module capacitor is derived which serves as an effective tool for the design calculation of an MMC deicer.The correctness and accuracy of the derived equations are validated through PSCAD simulation and experiments.

关 键 词：模块化多电平换流器 直流融冰装置 功率模块 零功率试验 纹波电压 

分 类 号：TM752[电气工程—电力系统及自动化]