湖南电力 ›› 2025, Vol. 45 ›› Issue (6): 91-96.doi: 10.3969/j.issn.1008-0198.2025.06.012

• 电网运行与控制 • 上一篇    下一篇

金属化薄膜电容器失效研究现状

孙鑫博1, 邹白苏1, 王明1, 陈日升1, 冯梦佳2   

  1. 1.株洲中车时代电气股份有限公司,湖南 株洲 412001;
    2.智能配用电装备与系统全国重点实验室(河北工业大学),天津 300401
  • 收稿日期:2025-08-12 修回日期:2025-09-18 出版日期:2025-12-25 发布日期:2026-01-13
  • 作者简介:孙鑫博(1998),男,硕士,工程师,研究方向为高压电器失效与性能提升。冯梦佳(1995),女,博士,副教授,研究方向为先进电工绝缘材料及其应用开发。
  • 基金资助:
    河北省中央引导地方科技发展资金项目(236Z2203G)

Research Status of Metallized Film Capacitor Failures

SUN Xinbo1, ZOU Baisu1, WANG Ming1, CHEN Risheng1, FENG Mengjia2   

  1. 1. Zhuzhou CRRC Times Electric Co., Ltd., Zhuzhou 412001, China;
    2. State Key Laboratory of Intelligent Power Distribution Equipment and System, Hebei University of Technology, Tianjin 300401, China
  • Received:2025-08-12 Revised:2025-09-18 Online:2025-12-25 Published:2026-01-13

摘要: 随着应用场景的扩展和工作环境的严苛化,金属化薄膜电容器的失效问题日益凸显,成为制约电力系统可靠性的瓶颈。从薄膜材料失效与金属化薄膜电容器器件失效两个维度出发,系统分析金属化薄膜电容器的失效机理,重点阐述薄膜微观失效与器件宏观失效之间的内在联系与本质区别,并总结电、热及机械等应力场作用下金属化薄膜电容器性能演变规律,最后提出失效防护策略与技术改进,为金属化薄膜电容器可靠性设计和寿命预测提供理论支撑。

关键词: 金属化薄膜电容器, 自愈, 失效机理, 失效防护

Abstract: With the expansion of application scenarios and the intensification of working environments, the failure issues of metallized film capacitors have become increasingly prominent, emerging as a critical constraint on the reliability of power systems. Starting from the two dimensions of film material failure and metallized film capacitor device failure, this paper systematically analyzes the failure mechanisms of metallized film capacitors, with a focus on elaborating the intrinsic connections and fundamental differences between microscopic film failure and macroscopic device failure, and summarizes the evolution patterns of metallized film capacitor performance under multi-field effects including electric field, temperature, and mechanical stress. Finally, failure protection strategies and technical improvements are proposed to provide a theoretical foundation for the reliability design and lifetime prediction of metallized film capacitors.

Key words: metallized film capacitors, self-healing, failure mechanisms, failure protection

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