Scholarlink

Commutation Failure (CF) is a common issue in converter stations, particularly in Line Commutated Converter-based HVDC (LCC-HVDC) systems due to the semi-controlled nature of thyristors. In severe cases, this can lead to concurrent CF. A CF prevention controller, by detecting faults in the AC system, enhances the commutation margin and prevents failure. The paper first investigates the mechanism of CF, then introduces a Multi-Agent System (MAS) for concerted prevention. A multi-agent prevention module is developed and applied to the sending side of LCC-HVDC systems using PSCAD software. Finally, simulations of single-phase and three-phase earth faults on the sending side of HVDC systems demonstrate that the proposed method effectively prevents both local and concurrent CF.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Multi-agent Adopted for Concerted Prevention of Commutation Failure in LCC-HVDC System

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Xiaolin Shen,
  • Ming Li,
  • Fangjie Wu,
  • Shangan Du,
  • Bo Zhao,
  • Yiqi Liu

摘要

Commutation Failure (CF) is a common issue in converter stations, particularly in Line Commutated Converter-based HVDC (LCC-HVDC) systems due to the semi-controlled nature of thyristors. In severe cases, this can lead to concurrent CF. A CF prevention controller, by detecting faults in the AC system, enhances the commutation margin and prevents failure. The paper first investigates the mechanism of CF, then introduces a Multi-Agent System (MAS) for concerted prevention. A multi-agent prevention module is developed and applied to the sending side of LCC-HVDC systems using PSCAD software. Finally, simulations of single-phase and three-phase earth faults on the sending side of HVDC systems demonstrate that the proposed method effectively prevents both local and concurrent CF.