Influence of Hybrid-driven Method on the Electromagnetic Properties of Electromagnetic Motor

In the light of electromagnetic motor driving system, electromagnetic con-version characteristics and structural principle were described. Electromagnetic drive and hybrid-driven method were proposed; the mathematical models describing the two drive systems which have adopted the magnetic circuit analysis method were established, starting with a discussion on how the drive system affects the electromagnetic force and air-gap magnetic flux density. Under the same conditions, the electromagnetic drive and hybrid-driven model was respectively simulated to reveal the impact on the electromagnetic force and air-gap magnetic flux density due to the different driving mode. Variation of the electromagnetic force with increasing coil current of two types of drive systems under motor speed control is studied preliminary. The results shown that compared to pure electromagnetic drive system, the hybrid drive system electromagnetic force raised from 2198N to 4097N, the air-gap magnetic flux density increased from 1.048T to 1.393T; the electromagnetic characteristics of the magnetically driven motor are improved effectively.