| 摘要: |
| 电力系统内部存在着各种形式的死区故障，准确、快速地切除死区故障直接关系到电力系统的安全稳定运行。详细介绍了主要几种常见的死区故障及其产生的原因，分析了典型死区保护逻辑的不足:即保护动作时间长且扩大了事故范围。综述了各类死区故障研究的现状，并对各种切除死区故障保护方案的优缺点作出评述。最后在现有研究的基础上，提出了死区保护研究的几点建议与设想，为后续开展研究提供借鉴与参考。 |
| 关键词: 高压电网 死区故障 死区研究 死区保护 元件保护 |
| DOI：10.7667/PSPC160411 |
| 分类号: |
| 基金项目: |
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| A survey of relay protection for high voltage dead-zone fault |
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WU Yu1,KE Lianjin2
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(1. Jiangsu Electric Power Company Maintenance Branch, Nanjing 210000, China;2. Changzhou Power Supply Company, Changzhou 213000, China)
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| Abstract: |
| There are various forms of dead-zone fault in power system, and how to remove the dead-zone fault quickly and correctly is related to the safe and stable operation of power system. This paper introduces several common dead-zone faults and causes of dead-zone faults. Then the deficiencies of typical dead-zone protection logic are analyzed thoroughly, including the operation time of relay protection and the scope of fault. It summarizes a variety of dead-zone researches status, and evaluates the advantages and disadvantages of various of relay protection schemes of dead-zone faults. Finally, based on the existing researches, some assumptions and suggestions are put forward for further research. |
| Key words: high voltage power dead-zone fault research of dead-zone dead-zone protection relay protection |
