摘要
设计了一种用于轨道交通直流断路器的合闸电磁机构,实际使用时发现合闸保持功率较大导致温升过高。基于电磁场分析和电磁铁设计理论,利用有限元分析软件ANSYS,仿真出电磁机构的磁场分布和吸力特性,根据仿真结果制造了一种改进方案样机,试验表明,该方案有效地降低了电磁机构合闸保持功率,并验证了仿真结果的准确性。
A closing electromagnetic mechanism for rail transit direct-current circuit breaker is designed.But it is found that the temperature-rise is too high when the mechanism kept closing for a long time because of the coil’s high power.Based on the theory of electromagnetic field and electromagnet design,the distribution of magnetic field and the electromagnetic force of electromagnetic mechanism are simulated by finite element analysis software ANSYS.A improved mechanism is manufactured according to the simulation results.The experiments show that the improved scheme can effectively reduce the electromagnetic mechanism’s closing maintenance power,and the accuracy of simulation results is validated.
出处
《高压电器》
CAS
CSCD
北大核心
2013年第7期71-74,共4页
High Voltage Apparatus
关键词
电磁机构设计
电磁场仿真
有限元
直流断路器
electromagnetic mechanism design
electromagnetic field simulation
finite element
DC circuit breaker
