| 引用本文: | 吴庆范,黄金海,张爱玲,等.一种新型三取二逻辑装置及配置策略在高岭背靠背扩建工程中的应用[J].电力系统保护与控制,2014,42(2):121-126. |
| WU Qing-fan,HUANG Jin-hai,ZHANG Ai-ling,et al.A new device with “selecting 2 from 3” logic and its configuration strategy applied in Gaoling back-to-back II project[J].Power System Protection and Control,2014,42(2):121-126 |
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| 摘要: |
| 基于可靠性和经济性的综合考虑，直流输电工程中的直流保护系统普遍采用三重化配置，输出方式采用三取二逻辑，三取二装置实现三取二逻辑判断并输出动作信号功能，对三取二逻辑装置及配置策略进行分析和研究具有重要意义。对以往工程中的三取二装置及配置策略进行了分析和研究，然后提出了一种新型三取二装置的设计方法，采用控制总线传输及FPGA逻辑处理方法，提高了其可靠性。将三取二逻辑配置在冗余的三取二装置中，同时在冗余的极控系统中进行相同的配置，大大提高了直流保护系统的可靠性和可用性。高岭背靠背扩建工程首次采用此新型三取二逻辑装置及配置策略，直流保护系统在投运后一直安全稳定运行，新型的三取二装置及其配置策略顺利通过了现场复杂环境的考验，验证了其安全性和可靠性，为以后新工程中直流保护系统的相关设计提供了有益的参考。 |
| 关键词: 三重化 三取二逻辑 冗余 背靠背 直流保护 策略 可靠性 |
| DOI：10.7667/j.issn.1674-3415.2014.02.020 |
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| A new device with “selecting 2 from 3” logic and its configuration strategy applied in Gaoling back-to-back II project |
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WU Qing-fan, HUANG Jin-hai, ZHANG Ai-ling, ZHOU Ren-wei, LIU Yi, TIAN Pei-tao
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XJ Electric Co., Ltd, Xuchang 461000, China
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| Abstract: |
| Based on comprehensive consideration of the reliability and economy, DC protection system commonly uses triplicate configuration in the HVDC transmission project and the output mode adopts “selecting 2 from 3” logic. The “selecting 2 from 3” devices achieve “selecting 2 from 3” logic judgment and output action signals, which is important to the analysis and research of “selecting 2 from 3” logic device and its configuration strategy. This paper analyzes the “selecting 2 from 3” device and its configuration strategy in previous project, and then proposes a new design of “selecting 2 from 3” device. It adopts control bus transfer and FPGA logic processing methods, which improves the reliability of the devices and configures “selecting 2 from 3” logic in redundant “selecting 2 from 3” devices as well as in redundant pole control systems, which greatly improves the reliability and usability of DC protection system. The new device with “selecting 2 from 3” logic and its configuration strategy is applied in Gaoling back-to-back II project for the first time. DC protection system has been operating safely and stably. The new device of “selecting 2 from 3” logic and its configuration strategy has successfully passed the test of complex environment in the field, which verifies its security and reliability. It provides a useful reference for the relevant design of DC protection system in new project. |
| Key words: triplicate “selecting 2 from 3” logic redundant back-to-back DC protection strategy reliability |
