Alternative design of high torque density two- phase brushless direct current motor

Abstract

This paper proposes a design of a dual-stator brushless direct current (BLDC) motor, which has a particularly high torque density. BLDC motors are known for their high torque capacity and power density characteristics, and therefore, they are used in many applications. The proposed BLDC motor is a two-phase motor with two stators, and each stator is excited by only one phase. The duty cycle of inverter switches is complete and coils are continuously excited. Due to the full and uninterrupted use of the all coils and core, this motor has a higher torque density compared to other BLDCs. After extracting the mathematical model of the proposed motor for its better understanding, it is designed. the performance of the designed motor is analyzed using finite element analysis.