全桥MMC直流融冰装置设计及仿真  

Design and simulation of full bridge MMC DC ice melting device

作　　者：袁康 吕孝国 田智全 王飞义 朱连成 YUAN Kang;LV Xiaoguo;TIAN Zhiquan;WANG Feiyi;ZHU Liancheng(School of Electronic and Information Engineering,University of Science and Technology Liaoning,Anshan 114051,China;Liaoning Rongxin Xingye Electric Power Technology Co.Ltd,Anshan 114051,China;School of Electronic and Engineering,Liaoning University of Technology,Jinzhou 121001,China)

机构地区：[1]辽宁科技大学电子与信息工程学院,辽宁鞍山114051 [2]辽宁荣信兴业电力技术有限公司,辽宁鞍山114051 [3]辽宁工业大学电气工程学院,辽宁锦州121001

出　　处：《辽宁科技大学学报》2021年第6期456-463,共8页Journal of University of Science and Technology Liaoning

摘　　要：为提高直流融冰装置利用率,减少占地面积,采用全桥模块化多电平变流器设计一台多功能直流融冰装置,能实现直流融冰、无功补偿、谐波抑制等功能,具有模块化、易于扩展、冗余性强、调制电压广等优点。考虑到MMC易于产生环流而增加损耗、使桥臂电流畸变等缺点,设计环流抑制器,并设计直流融冰和谐波补偿控制方案。利用RTLAB实时仿真平台进行仿真实验,结果表明,控制方案具备较好的融冰功能和无功补偿能力。In order to improve the utilization rate of the DC ice melting device and reduce the floor space,a DC ice melting device was designed by using full-bridge MMC.It can realize multiple functions of DC ice melting,reactive power compensation,harmonic suppression,and etc.It has the advantages of modulariza-tion,easy expansion,strong redundancy,wide modulation voltage,and etc.Considering the potential draw-backs of MMC in generating circulating current,increasing losses,and distorting bridge arm current,a circu-lating current suppressor and a scheme of DC ice melting and harmonic compensation control were designed.The RTLAB real-time simulation platform was used for simulation,and the results show that the control scheme exhibits better ice melting performance and reactive power compensation ability.

关 键 词：直流融冰 无功补偿 模块化多电平变流器 环流抑制 RTLAB仿真 

分 类 号：TM721.1[电气工程—电力系统及自动化]