CAJ | 학술논문

电磁操动机构是断路器、接触器中的关键部件，针对现有电磁操动机构动态特性仿真效率较低的问题，提出了一种一体化的耦合仿真方法。通过动态网格技术，将空气域包含的网格在时间域中进行动态划分，从而将磁路的电磁场控制方程和机械结构的动力学方程进行动态耦合，在时间域内同时完成电磁操动机构动态响应过程中电磁变量和机械变量的求解。为了对仿真算法进行验证，以智能交流接触器的磁路结构作为实例，以 PWM 斩波以后的电压作为驱动信号，对所提出的仿真算法进行验证。仿真和实验结果表明，所提出的方法可以对电磁变量和机械变量完成一体化求解，仿真效率可以得到提高。同时，实验结果显示所提出的算法计算结果可靠。
전자조동궤구시단로기、접촉기중적관건부건，침대현유전자조동궤구동태특성방진효솔교저적문제，제출료일충일체화적우합방진방법。통과동태망격기술，장공기역포함적망격재시간역중진행동태화분，종이장자로적전자장공제방정화궤계결구적동역학방정진행동태우합，재시간역내동시완성전자조동궤구동태향응과정중전자변량화궤계변량적구해。위료대방진산법진행험증，이지능교류접촉기적자로결구작위실례，이 PWM 참파이후적전압작위구동신호，대소제출적방진산법진행험증。방진화실험결과표명，소제출적방법가이대전자변량화궤계변량완성일체화구해，방진효솔가이득도제고。동시，실험결과현시소제출적산법계산결과가고。
Magnetic actuators are the key components of electric breakers and contactors. An integrated modeling framework has been developed to increase the simulation efficiency of the magnetic contactor. The air is meshed with the moving mesh method in the time domain that the electromagnetic governing equation can be coupled with the mechanical dynamic governing equation. The electromagnetic variables and the mechanical variables can be solved in the same time period for the dynamic response of the actuator. An intelligent ac contactor has been taken as the example to verify the simulation results. The applied voltage chopped with PWM signal is taken as the drive source. Simulation results show that the electromagnetic variables and the mechanical variables can be solved in an integrated framework and the simulation efficiency can be increased. Comparisons of simulations and experiments show that the dynamic response of the magnetic actuator can be properly predicted by the proposed method.