文章摘要
王守相,刘琪,薛士敏,等.直流配电系统控制与保护协同关键技术研究综述[J].电力系统自动化. DOI: 10.7500/AEPS20190506005.
WANG Shouxiang,LIU Qi,XUE Shiming, et al.Overview of the Key Technologies for Coordinated Control and Protection in DC Distribution System[J].Automation of Electric Power Systems. DOI: 10.7500/AEPS20190506005.
直流配电系统控制与保护协同关键技术研究综述
Overview of the Key Technologies for Coordinated Control and Protection in DC Distribution System
DOI:10.7500/AEPS20190506005
关键词: 直流配电系统  控制  保护  协调配合  故障限流
KeyWords: DC Distribution System  control  protection  coordination  fault current limit
上网日期:2019-11-07
基金项目:国家重点研发计划
作者单位E-mail
王守相 天津大学 教育部智能电网重点实验室 sxwang@tju.edu.cn 
刘琪 天津大学 教育部智能电网重点实验室 liuqi_tj@tju.edu.cn 
薛士敏 天津大学 教育部智能电网重点实验室 xsm@tju.edu.cn 
袁栋 国网江苏省电力有限公司 sxwang@tju.edu.cn 
摘要:
      直流配电系统中电力电子装置众多,一方面,电力电子装置的脆弱性提高了对保护的要求;另一方面,依靠灵活可控的电力电子装置,通过直流配电系统控制与保护协同实现故障快速恢复成为直流配电系统控制与保护研究的重要思路。本文首先归纳了直流配电系统保护与控制协同的整体思路;然后,总结分析了换流阀子模块结构和控制策略对直流配电系统故障特性的影响,分析了直流配电系统保护原理,讨论了直流故障电流开断技术和故障限流技术在直流配电系统保护和控制协同中的应用;接着,举例说明了直流配电系统控制与保护协同配合的时序过程;最后,对直流配电系统控制与保护协同研究进行了总结和展望。
Abstract:
      In DC distribution system, large number of power electronic devices increases the difficulty of DC protection for their vulnerability. However, flexible and controllable power electronic devices make it feasible for the fast restoration of DC distribution system after contingency through coordinated control and protection, which has become one of the most crucial idea in this field. Firstly, the overall thought of coordinated control and protection in DC distribution system is summarized. Secondly, the influence of the structure and control strategy of converters on the mechanism and characteristics of contingencies in DC distribution system is summarized and analyzed. The protection principle of DC distribution system is analyzed comprehensively, and the application of the DC fault current breaking technology and the fault current limiting technology in coordinated control and protection are summarized and discussed. Thirdly, the coordination process of control and protection in DC distribution system is illustrated with the example. Finally, the research on the coordination of control and protection of the DC distribution system is summarized and prospected.
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