基于Adams与AMESim联合仿真的动车组主断路器分析及优化

Analysis and Optimization of EMUs Main Circuit Breaker Based on Adams and AMESim Joint Simulation Technology

动车组主断路器的触头在闭合过程中会产生很大的冲击力,引发动触头的弹跳,导致触头之间拉弧,进而产生大量的热量而烧坏触头,使断路器故障,导致动车组在运行过程中停车。为解决这一问题,在主断路器方案设计阶段,采用虚拟样机技术,对产品性能进行有效预测和评估,使设计方案得到优化。通过对动车组高压电气箱研制项目中的某型号主断路器进行研究分析,采用Adams与AMESim联合仿真技术,建立主断路器虚拟样机数学模型,预先对断路器可能产生的弹跳问题进行分析和优化,从而减少设计缺陷和成本,缩短试验周期,提高产品可靠性。

The contact of the main circuit breaker of EMUs will produce a great impact force in the closing process,which will cause bounce of the moving contact and lead to arc pulling between the contact,resulting in a large number of hot burns of contact,which will cause fault of the circuit breaker and cause EMUs to stop during operation.To solve this problem,virtual prototype technology could be used to effectively predict and evaluate product performance in the design stage,so that the design scheme could be optimized.Based on the research and analysis of a certain type of main circuit breaker in the development project of high voltage electric box of EMUs,the virtual prototype mathematical model of main circuit breaker was established by using the combined simulation technology of Adams and AMESim,and the possible bouncing problem of circuit breaker was analyzed and optimized in advance,so as to reduce design defects and costs,shorten test cycle and improve product reliability.