许烽,江道灼,虞海泓,陆翌,裘鹏,陈骞,黄晓明
XU Feng,JIANG Daozhuo,YU Haihong,LU Yi,QIU Peng,CHEN Qian,HUANG Xiaoming

• 1:国网浙江省电力公司电力科学研究院
• 2:浙江大学电气工程学院

摘要(Abstract)：

为降低混合式高压直流断路器的昂贵造价,提出了一种H桥型高压直流断路器,并对其联接于直流正负极时不同的故障隔离控制策略分别进行了研究。H桥型高压直流断路器沿用了混合式高压直流断路器的关键部件和断流理念,利用H桥结构特有的电流流向特性,对混合式直流断路器内的关键部件进行了整合,通过重新布局使得直流断路器内的IGBT个数大幅减少。在保证同等直流故障处理能力的前提下,相比于混合式高压直流断路器,H桥型高压直流断路器的投资成本大幅降低。为验证H桥型高压直流断路器及其故障隔离策略的有效性,在PSCAD/EMTDC内建立了一个三端单极直流网络模型。仿真结果验证了H桥型高压直流断路器在隔离直流线路故障方面的可行性和有效性。
In order to reduce the great cost of the hybrid HVDC breaker, a H-bridge type HVDC breaker is proposed in this paper, and different fault isolation strategies are studied in the case of the positive and negative poles connection. The key components and fault isolation principle of the hybrid breaker are used in the H-bridge type breaker. According to the characteristic of current flow direction of the H-bridge structure, the key components of hybrid HVDC breaker are integrated, and the number of IGBT in the HVDC breaker is greatly reduced by re-layout. The fault clearing capability of the H-bridge type HVDC breaker is equal to the hybrid breaker, but its investment cost is reduced dramatically. A model of a three-terminal monopolar HVDC network is developed in PSCAD/EMTDC to verify the validity of the proposed breaker and its fault isolation strategies. Simulation results prove validity and feasibility of the proposed solution.

关键词(KeyWords)： H桥型高压直流断路器;故障隔离;电流开断能力;经济性;直流电网
H-bridge type HVDC breaker;fault isolation;current interrupting capacity;economy;DC network

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 许烽,江道灼,虞海泓,陆翌,裘鹏,陈骞,黄晓明
XU Feng,JIANG Daozhuo,YU Haihong,LU Yi,QIU Peng,CHEN Qian,HUANG Xiaoming

DOI: 10.19585/j.zjdl.2016.12.002

参考文献(References)：

• [1]徐政,屠卿瑞,管敏渊,等.柔性直流输电系统[M].北京:机械工业出版社,2013.
• [2]FLOURENTZOU N,AGELIDIS V G,DEMETRIADES GD.VSC-based HVDC power transmission systems:an overview[J].IEEE Transactions on Power Electronics,2009,24(3):592-602.
• [3]AHMED N,ANGQUIST L,MEHMOOD S,et al.Efficient modeling of an MMC-based multiterminal DC system employing hybrid HVDC breakers[J].IEEE Transactions on Power Delivery,2015,30(4):1792-1801.
• [4]许烽,徐政,刘高任.新型直流电网潮流控制器及其在环网式直流电网中的应用[J].电网技术,2014,38(10):2644-2650.
• [5]汤广福,罗湘,魏晓光.多端直流输电与直流电网技术[J].中国电机工程学报,2013,33(10):8-17.
• [6]李亚楼,穆清,安宁,等.直流电网模型和仿真的发展与挑战[J].电力系统自动化,2014,38(4):127-135.
• [7]穆建国,王莉,胡杰.直流固态断路器拓扑结构的设计与分析[J].中国电机工程学报,2010,30(18):109-114.
• [8]马钊.直流断路器的研发现状及展望[J].智能电网,2013(1):12-16.
• [9]方进,邓珂琳,温家良.环网式三端直流输电系统及直流断路器应用的分析与仿真[J].电网技术,2012,36(6):244-249.
• [10]何俊佳,袁召,赵文婷,等.直流断路器技术发展综述[J].南方电网技术,2015,9(2):9-15.
• [11]魏晓光,高冲,罗湘,等.柔性直流输电网用新型高压直流断路器设计方案[J].电力系统自动化,2013,37(15):95-102.
• [12]江道灼,张弛,郑欢,等.一种限流式混合直流断路器方案[J].电力系统自动化,2014,38(4):65-71.
• [13]刘高任,许烽,徐政,等.适用于直流电网的组合式高压直流断路器[J].电网技术,2016,40(1):70-77.
• [14]朱童,余占清,曾嵘,等.混合式直流断路器模型及其操作暂态特性研究[J].中国电机工程学报,2016,36(1):18-30.
• [15]J譈RGEN H魧FNER,BJ魻RN JACOBSON.Proactive hybrid HVDC breakers-A key innovation for reliable HVDC grids[C]//CIGRE Session.Bologna,Italy:CIGRE,2011:1-9.