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For a long time, the lack of digital modeling for the design of secondary circuits connected by cables has poses obstacles to the efficient construction and maintenance of substations throughout their entire life cycle. The problems in protection operation and maintenance are mainly reflected in the low efficiency of secondary circuit safety measure and verification, as well as the difficulty in online monitoring. In recent years, experts have begun to study the modeling technology of substation secondary circuits, and have developed digital design specifications for secondary circuits in substations, laying the foundation for improving the level of substation lifecycle management. This paper proposes the method of improving the protection operation and maintenance technology based on the digital modeling of the secondary circuit, realizing the automatic generation and online verification of protection safety measures, automatic testing and online monitoring of the secondary circuit of conventional sampling and tripping protection equipment without configuration, which is conducive to improving the operation and maintenance level of the relay protection system.

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Research on the Improvement of Operation and Maintenance Efficiency of Relay Protection Based on Digital Design Technology

  • 会议论文

  • 发表日期：

    2025年

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  • LÜ Hang,
  • Ma Yingxin,
  • GONG Xiao,
  • Gao Xu,
  • DING Jie

摘要

For a long time, the lack of digital modeling for the design of secondary circuits connected by cables has poses obstacles to the efficient construction and maintenance of substations throughout their entire life cycle. The problems in protection operation and maintenance are mainly reflected in the low efficiency of secondary circuit safety measure and verification, as well as the difficulty in online monitoring. In recent years, experts have begun to study the modeling technology of substation secondary circuits, and have developed digital design specifications for secondary circuits in substations, laying the foundation for improving the level of substation lifecycle management. This paper proposes the method of improving the protection operation and maintenance technology based on the digital modeling of the secondary circuit, realizing the automatic generation and online verification of protection safety measures, automatic testing and online monitoring of the secondary circuit of conventional sampling and tripping protection equipment without configuration, which is conducive to improving the operation and maintenance level of the relay protection system.