电器与能效管理技术Issue(12)：32-38,7.DOI:10.16628/j.cnki.2095-8188.2023.12.005
基于Workbench顺序耦合的中压直流断路器热稳定性仿真分析
Simulation Analysis on Thermal Stability of Medium Voltage DC Circuit Breakers Based on Workbench Sequential Coupling
黄添晶 1马子文 1孔凡良2
作者信息
- 1. 武汉船用电力推进装置研究所,湖北武汉 430064
- 2. 武汉长海电气科技开发有限公司,湖北武汉 430064
- 折叠
摘要
Abstract
The medium voltage DC circuit breaker is an important protective device in the medium voltage DC power supply and distribution system.A sequential coupling simulation model for the thermal stability of the medium voltage DC circuit breaker is established based on the Workbench.The transient temperature rise of a certain type of medium voltage DC circuit breaker with a rated current of 6 000 A under 70 kA/250 ms short-circuit current impact is simulated and analyzed.At the same time,considering the influence of the electric force generated by short-circuit current on the radius of the conductive bridge,a calculation program for the iterative change of the radius of the conductive bridge during the current flow process is designed,which can provide a more accurate simulation basis for the design of the thermal stability ability of medium voltage DC circuit breakers.关键词
中压直流断路器/Workbench顺序耦合/热稳定性/导电桥半径Key words
medium voltage DC circuit breaker/Workbench sequential coupling/thermal stability/conductive bridge radius分类
信息技术与安全科学引用本文复制引用
黄添晶,马子文,孔凡良..基于Workbench顺序耦合的中压直流断路器热稳定性仿真分析[J].电器与能效管理技术,2023,(12):32-38,7.
