| 引用本文: | 李豹,马业林,熊双成,等.±800 kV特高压直流保护优化研究[J].电力系统保护与控制,2014,42(16):71-75. |
| LI Bao,MA Ye-lin,XIONG Shuang-cheng,et al.Research on optimization of ±800 kV UHVDC protection[J].Power System Protection and Control,2014,42(16):71-75 |
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| 摘要: |
| ±800 kV特高压直流输电系统在电网中起到重要的资源调配作用。介绍了特高压直流保护的特点和保护分区，在对比分析云广和糯扎渡工程直流保护配置和保护功能逻辑基础上，研究特高压直流保护的优化。重点介绍了糯扎渡工程中极差动保护、金属回线差动保护和直流滤波器C1不平衡保护的保护配置、逻辑及其优化情况。优化后的直流保护配置和保护逻辑能够提高保护系统的速动性和可靠性，增强了特高压直流系统的稳定水平，对其他直流系统运行维护和后续工程设计也有一定的参考意义。 |
| 关键词: 特高压 直流保护 配置 逻辑 优化 |
| DOI：10.7667/j.issn.1674-3415.2014.16.012 |
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| Research on optimization of ±800 kV UHVDC protection |
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LI Bao, MA Ye-lin, XIONG Shuang-cheng, LI Guo-ming, LAI Gui-sen
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Guangzhou Bureau, EHV Power Transmission Company of CSG, Guangzhou 510405, China
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| Abstract: |
| ±800 kV UHVDC system plays an important role in resource allocation. The characteristics and configuration of UHVDC protection are introduced, and on the basis of contrast analysis in DC protection configuration and function logic of Yun-Guang project and Nuozhadu project, the optimization of UHVDC protection is researched. It emphatically introduces the configuration principle, logic, and optimization of converter DC differential protection (87DCM), metallic return line longitudinal differential protection (87MLL), DC filter C1 capacitor unbalance protection (60/61DF) in Nuozhadu project. The optimized configuration and logic of the DC protection can improve its speed and reliability, enhance the UHVDC system stability, also have certain reference value on the operation and maintenance in the other HVDC system and the design of the subsequent project. |
| Key words: UHV DC protection configuration logic optimization |
