A Built-in Integrated Magnetorheological Fluid Brake Permanent Magnet Synchronous Motor

In this paper, a built-in integrated magnetorheological fluid brake permanent magnet synchronous motor (BIMRFB-PMSM) is proposed, which integrates MR fluid brake and PMSM with a relatively simple structure to improve space utilization while meeting the braking requirement. Based on the design of outer stator with armature winding and inner stator with braking winding, the proposed machine has two switchable working states: rotation state and brake state. After a detailed description of the machine topology and operation principle of the proposed machine, the electromagnetic performance of the proposed machine is analyzed by finite element (FE) analysis. Simlulation results show that the brake torque in brake state satisfies the brake requirements of the proposed machine and the integrated topology can effectively improve the space utilization.