Design of Main Parameter for Permanent Magnetic Operating Mechanism of Integrated Vacuum Circuit Breaker

WU Yutong; DU Qinjun; WU Lei; MA Bingtu; LIU Jiahe; LI Weiqiang

doi:10.13296/j.1001-1609.hva.2026.05.009

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Design of Main Parameter for Permanent Magnetic Operating Mechanism of Integrated Vacuum Circuit Breaker

Research & Analysis | 更新时间：2026-05-13

- Design of Main Parameter for Permanent Magnetic Operating Mechanism of Integrated Vacuum Circuit Breaker
- High Voltage Apparatus Vol. 62, Issue 5, Pages: 82-93(2026)
- 作者机构：
  
  山东理工大学电气与电子工程学院，山东淄博 255022
  淄博职业技术大学，山东淄博 255300
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2026.05.009
  CLC：
- Received：20 September 2025，
  
  Revised：2025-11-28，
  
  Published：16 May 2026
- 稿件说明：
移动端阅览
WU Yutong, DU Qinjun, WU Lei, et al. Design of Main Parameter for Permanent Magnetic Operating Mechanism of Integrated Vacuum Circuit Breaker[J]. High Voltage Apparatus, 2026, 62(5): 82-93.
DOI：

WU Yutong, DU Qinjun, WU Lei, et al. Design of Main Parameter for Permanent Magnetic Operating Mechanism of Integrated Vacuum Circuit Breaker[J]. High Voltage Apparatus, 2026, 62(5): 82-93. DOI： 10.13296/j.1001-1609.hva.2026.05.009.

摘要

针对传统永磁真空断路器体积大、重量重、在狭小空间运行成本高的问题，提出了一种真空灭弧室和永磁操作结构一体化设计方案。将传统的真空灭弧室与永磁操作结构并列布局改为垂直布局，永磁操作机构中的保持部分与驱动部分直接作用于触头组件，与传统永磁断路器相比体积减少二分之一。集成式断路器新型永磁机构采用单线圈双向激励驱动，无需像传统双稳态断路器分别对分合闸线圈通电；并将圆环状永磁体切割为规律排列的瓦片型，优化磁路布局。建立永磁机构静磁—电磁—动力学物理场仿真模型，提出基于NSGA-III（第三代非支配遗传算法）在Comsol-MATLAB的联合优化方法，有效解决了永磁断路器参数优化设计中涉及复杂气隙迭代的电磁力与合闸保持力解析式难以嵌入优化算法约束条件的问题。通过机械特性与电寿命实验，证明研制的集成式永磁真空断路器样机达到了产品性能指标要求。

Abstract

In view of such issues as large volume

heavy weight

and high operating costs in confined spaces associated with traditional permanent magnetic vacuum circuit breaker (PMVCB)

an integrated design scheme combining the vacuum interrupter (VI) and the permanent magnetic operating mechanism is proposed. The conventional side-by-side layout of the VI and the permannent magnetic operating mechanism is replaced by a vertical layout. The holding and the driving part of the permmanent magnetic operating mechanism act directly on the contact assembly

resulting in a 50% reduction in volume compared to conventional permanent magnetic vacuum circuit breaker.The novel permanent magnetic operating mechansm of the integrated circuti breaker adopts a single-coil bidirectional excitation drive

eliminating the need to energize the opening and closing coils separately as in traditional bistable breakers. Furthermore

the annular permanent magnet is segmented into regularly-arranged tile-shaped pieces so to optimize the magnetic circuit configuration. A static magnetic-electromagnetic-dynamic physical field simulation model of the permanent magnetic operting mechanism is set up. A joint optimization methodology based onNSGA-III (non-dominated sorting genetic algorithm III) within Comsol and MATLAB is proposed

which effectively resolves th issues in the parameter optimization design of permanent magnetic circuit breakers where the analytical expressions of electromagnetic force and closing holding force involving complex air gap iteration are difficult to embed in the constraints of the optimization algorithm. It is proved by mechanical characteristic and electrical endurance tests that the prototype of the integrated integrated permanent magnetic vacuum circuit breaker meets the product performance requirements.

关键词

Keywords

references

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