Design and optimization of energy-saving wind power grid-connected contactor based on nano two-phase composite magnetic materials

Based on nano two-phase composite magnetic material, a design and optimization scheme of energy-saving wind power grid contactor is proposed, which solves the problems of traditional contactor's high iron loss, low speed and large AC noise. In this paper, the electromagnetic system of the contactor is redesigned by the characteristics of high remanence, high coercivity and wide hysteresis loop of nano two-phase composite magnetic material. A new finite element simulation model is established and compared with the traditional static and dynamic characteristics of the contactor, so as to optimize the overall structural parameters. Finally, a prototype is made and the effectiveness of the design is verified by experiments.