Review on Fault Protection Technologies of DC Microgrid

被引：0
|
作者：
Nian H. [1 ]
Kong L. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
来源：
Nian, Heng (nianheng@zju.edu.cn) | 1600年 / Science Press卷 / 46期
基金：
国家重点研发计划;
关键词：
DC microgrid; Fault characteristics analysis; Fault detection; Fault isolation; Fault location;
D O I：
10.13336/j.1003-6520.hve.20200472
中图分类号：
学科分类号：
摘要：
Fault protection of DC microgrid is a major challenge for the development of AC-DC hybrid microgrids. Thus, this paper focuses on the review and analysis of three key technologies in fault protection of DC microgrid. And the three key tech-nologies include the fault transient characteristics analysis, fault detection and location methods, and fault isolation schemes. Firstly, the topologies, wiring forms and terminal-converters of DC microgrid are summarized. Secondly, the transient characteristics of the DC microgrid based on two-level and modular multilevel converters are analyzed, and the transient modeling methods of DC microgrid transmission lines and converters are also summarized. And then, the common methods of fault detection and fault location are sorted out respectively. The fault detection methods are divided into time-domain and frequency-domain fault detection methods. While the fault location methods are divided into passive fault location and active fault location methods. Next, four fault isolation schemes, including an AC circuit breaker scheme, a DC circuit breaker+DC fault current limiter scheme, a submodule in MMC scheme, and a multifunctional integration topology scheme, are analyzed. Finally, the research of key technologies for fault protection of DC microgrid is summarized and suggestions for the future research for fault protection of DC microgrid are given. © 2020, High Voltage Engineering Editorial Department of CEPRI. All right reserved.
引用
收藏
页码：2241 / 2254
页数：13
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