کنفرانس بین المللی ماشین و محرکه های الکتریکی

صفحه اصلی / The 4th International Conference on Electrical Machines and Drives

The Finite Element Analysis of a New Permanent Magnet Actuator for Vacuum Circuit Breakers

نویسندگان :

Ahmad Siroos¹ Somayeh Yarkarami² Ebrahim Afjei³ Xiaodong Liang⁴

1- Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran 2- Faculty of Electrical Engineering, Semnan University 3- Faculty of Electrical Engineering Shahid Beheshti University Tehran, Iran 4- Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, Canada

کلمات کلیدی :

Dynamic characteristics،finite element analysis،permanent magnetic actuator،steady state characteristics،vacuum circuit breaker

چکیده :

This paper presents a novel permanent magnetic actuator (PMA) used for vacuum circuit breakers (VCBs). The proposed PMA has a bistable structure, and the employed permanent magnets are embedded inside the circuit breaker in such a way that the losses and overall size of the structure are less than that of the conventional PMA. The performance indices, such as the opening and closing time, the average opening and closing velocities, and the maximum currents of the opening and closing coils, of the proposed PMA have been considerably improved than that of the conventional PMA. Both steady state and dynamic characteristics of the conventional and proposed PMAs are simulated in ANSYS Maxwell 2D/3D software. The simulation results show that both PMAs meet the requirements of the VCB for the considered voltage level.