直流断路器分断过电压的机理及抑制

IF 4.4 2区 工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
High Voltage Pub Date : 2024-12-28 DOI:10.1049/hve2.12491
Lu Qu, Zhangqing Yu, Zhizheng Gan, Xin Yan, Cheng Jiang, Yulong Huang, Mingshen Li, Jian Feng
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引用次数: 0

摘要

直流断路器分断过电压的发生对直流电网的安全运行具有潜在的威胁。根据±10kv三端直流配电网的结构,设置了中压DCCB,并制定了故障保护策略。此外,还建立了系统的仿真模型,分析了不同节点和故障条件下直流配电网的过电压特性。通过研究影响分断过电压的因素,本文揭示了与dccb相关的过电压产生相关的基本机制。在此基础上,提出了缓解DCCB过电压的措施。这些见解为直流配电网中dccb的设计和运行提供了理论和技术基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Mechanism and suppression of breaking overvoltage of DC circuit breakers

Mechanism and suppression of breaking overvoltage of DC circuit breakers

The occurrence of breaking overvoltage in a DC circuit breaker (DCCB) poses a potential threat to the safe operation of a DC grid. Based on the structure of the ±10 kV three-terminal DC distribution network, this paper sets up the medium-voltage DCCB and formulates a fault protection strategy. Additionally, a simulation model of the system is developed to analyse the overvoltage characteristics within the DC distribution network across different nodes and fault conditions. By examining the factors that influence breaking overvoltage, this paper unravels the fundamental mechanisms associated with DCCB-related overvoltage generation. Furthermore, the paper suggests measures to alleviate DCCB overvoltage. These insights provide a theoretical and technical basis for the design and operation of DCCBs within DC distribution networks.

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来源期刊
High Voltage
High Voltage Energy-Energy Engineering and Power Technology
CiteScore
9.60
自引率
27.30%
发文量
97
审稿时长
21 weeks
期刊介绍: High Voltage aims to attract original research papers and review articles. The scope covers high-voltage power engineering and high voltage applications, including experimental, computational (including simulation and modelling) and theoretical studies, which include: Electrical Insulation ● Outdoor, indoor, solid, liquid and gas insulation ● Transient voltages and overvoltage protection ● Nano-dielectrics and new insulation materials ● Condition monitoring and maintenance Discharge and plasmas, pulsed power ● Electrical discharge, plasma generation and applications ● Interactions of plasma with surfaces ● Pulsed power science and technology High-field effects ● Computation, measurements of Intensive Electromagnetic Field ● Electromagnetic compatibility ● Biomedical effects ● Environmental effects and protection High Voltage Engineering ● Design problems, testing and measuring techniques ● Equipment development and asset management ● Smart Grid, live line working ● AC/DC power electronics ● UHV power transmission Special Issues. Call for papers: Interface Charging Phenomena for Dielectric Materials - https://digital-library.theiet.org/files/HVE_CFP_ICP.pdf Emerging Materials For High Voltage Applications - https://digital-library.theiet.org/files/HVE_CFP_EMHVA.pdf
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