高压大功率电网新型MMC-STATCOM结构
直流融冰装置研究

马冰; 陈忠华; 刘红恩; 杨慕紫; 付京

引用本文:	马冰,陈忠华,刘红恩,等.高压大功率电网新型MMC-STATCOM结构直流融冰装置研究[J].电力系统保护与控制,2015,43(11):101-108.
	MA Bing,CHEN Zhonghua,LIU Hongen,et al.Research of high voltage high power grid DC ice melting and static synchronous compensation device[J].Power System Protection and Control,2015,43(11):101-108

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高压大功率电网新型MMC-STATCOM结构直流融冰装置研究
马冰¹, 陈忠华¹, 刘红恩², 杨慕紫¹, 付京³
1.辽宁工程技术大学电气与控制工程学院，辽宁葫芦岛 125105;2.中国电力科学院电力电子研究所，北京 100192;3.国网辽宁省电力有限公司阜新供电公司，辽宁阜新 123000

摘要:

通过改进MMC-STATCOM结构可使其具有直流输出能力，实现高压大功率电网的直流融冰功能。运用三相模块化多电平换流器(Modular Multi-level Converter, MMC)的公共直流端以及MMC各相之间能量能够相互流动的特点，实现四象限运行，且模块化的设计适合用于高压、大功率的场合。应用耐压高，驱动功率小的电子注入增强栅晶体管(Injection Enhanced Gate Transistor, IEGT)作为功率子模块的开关器件，能够使装置容量得到更好的扩充，实现大电流的直流融冰和大功率的无功补偿功能。静止同步补偿器(Static Synchronous Compensator, STATCOM)也为无功补偿提供更准确和快捷的补偿能力。最后利用Matlab等仿真软件搭建三相MMC-STATCOM结构融冰装置仿真模型进行模拟仿真，结果证明此结构在电网中可稳定且快速地运行。

关键词: 模块化多电平换流器四象限运行直流融冰无功补偿电子注入增强栅晶体静止同步补偿器

DOI：10.7667/j.issn.1674-3415.2015.11.016

分类号:

基金项目:国家电网公司科技项目(DLHZ200813)

Research of high voltage high power grid DC ice melting and static synchronous compensation device

MA Bing¹, CHEN Zhonghua¹, LIU Hongen², YANG Muzi¹, FU Jing³

1.Department of Electrical and Control Engineering, Liaoning Technical University, Huludao 125105, China;2.Power Electronics Research Institute of China Electric Power Research Institute, Beijing 100192, China;3.Fuxin Power Supply Company of State Grid Liaoning Province Electric Power Company, Fuxin 123000, China

Abstract:

Improving the MMC - structure of STATCOM can make its have DC output ability and achieve the function of high voltage power grid DC ice-melting. Modular multi-level converter has a common DC side and energy can flow to each other between each MMC phase, with which four-quadrant operation is achieved, and it adopts modular design, which is very suitable for high-pressure and high-power situations. The power sub-module switching device, which takes new high power and low driving power turn-off devices Injection Enhanced Gate Transistor, can expand the capacity of the device and achieve high current DC ice-melting and high power compensation. Static Synchronous Compensator (STATCOM) also provides a more accurate and efficient ability to compensate for reactive power compensation. Three-phase MMC-STATCOM simulation models are built in the Matlab software, the theoretical analysis is verified by simulation that the proposed structure can be stable and run faster in the grid.

Key words: modular multi-level converter four-quadrant operation DC ice melting reactive power compensation injection enhanced gate transistor static synchronous compensator

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