Abstract
Dynamic characteristics reflect the real situation of an AC c ontactor and are very important to the optimum design of AC contactors. A simulation model of intelligent AC contactor has been established using the ADAMS software with developing a user subroutine in which the iterated Runge-Kutta method is adopt to solve a set of differential equations t hat describe the coupling of circuit, electromagnetic and mechanical systems. Because of reusing the analysis results obt ained from the simulation of static characteristics accomplishe d by the ANSYS software, the simulation model runs more effici ently. In addition, by using the ADAMS/solver in the batch mode, an optimization library have been integrated with the ADAMS software and successfully used to seek the optimal control parameters to minimize the contact bounces and core bounces. The simulation results show that the intelligent AC contactor with PWM control can effectively reduce the bounces and energy consumption.
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