发电技术 ›› 2020, Vol. 41 ›› Issue (4): 335-345.DOI: 10.12096/j.2096-4528.pgt.19026

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多馈入直流输电系统换相失败研究综述

王嘉铭1(),余浩2,陈武晖1,*()   

  1. 1 江苏大学电气信息工程学院, 江苏省 镇江市 212013
    2 广东电网发展研究院有限责任公司, 广东省 广州市 510080
  • 收稿日期:2019-08-22 出版日期:2020-08-31 发布日期:2020-09-01
  • 通讯作者: 陈武晖
  • 作者简介:王嘉铭(1996),女,硕士研究生,研究方向为直流输电技术, jiaming_wang1996@163.com
  • 基金资助:
    国家重点研发计划项目(2016YFE0105300)

Research on Commutation Failure in Multi-feed HVDC Transmission System

Jiaming WANG1(),Hao YU2,Wuhui CHEN1,*()   

  1. 1 School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu Province, China
    2 Guangdong Power Grid Development Research Institute Co., Ltd., Guangzhou 510080, Guangdong Province, China
  • Received:2019-08-22 Published:2020-08-31 Online:2020-09-01
  • Contact: Wuhui CHEN
  • Supported by:
    National Key Research and Development Program of China(2016YFE0105300)

摘要:

常规高压直流输电系统存在换相失败的风险。对于多馈入直流输电系统而言,由于各交直流系统间的互相作用影响,单个直流回路发生换相失败可能会引起多条直流回路同时或者相继发生换相失败,给电网的安全稳定运行带来威胁。从换相失败的机理出发,引入多馈入交互作用因子来分析多馈入直流输电系统发生换相失败的影响因素和判据,总结了目前抑制换相失败的手段和策略,最后指出了在数学模型、换相失败耦合机理和抑制措施方面值得更深入的探讨和研究。

关键词: 多馈入直流输电系统, 换相失败, 多馈入交互作用因子

Abstract:

HVDC transmission systems present a risk of commutation failure. For multi-infeed HVDC transmission systems, due to the interaction between AC and DC systems, the commutation failure of a single inverter station may cause multiple inverter stations to fail at the same time or in succession, which poses a threat to the safe and stable operation of the power grid. Based on the mechanism of commutation failure, the multi-infeed interaction factor was introduced to analyze the influencing factors and criteria of commutation failure in multi-infeed HVDC transmission systems, and the current methods and strategies for suppressing commutation failure were summarized. Finally, it pointed out that the mathematical model, the commutation failure coupling mechanism and the suppression measures were worthy of further discussion and research.

Key words: multi-infeed HVDC transmission system, commutation failure, multi-infeed interaction factor

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