Study on design and flux weakening control of direct drive hub motor

Abstract

The direct drive hub motor is a motor that directly combines the motor and the wheel. It is accompanied by the development of permanent magnet motor and modern control technology. Permanent magnet synchronous motor (PMSM) is especially suitable for use as hub motor use of its advantages of high efficiency, energy saving, high power and easy control. In this paper, Motor Cad software was applied to optimize the design of an outer rotor PMSM motor of a cellular power, and the simulation and analysis of air gap magnetic density and other performance were carried out. The analysis results not only verify the rationality of the motor design, but also provide a basis for the next study on flux weakening control. The design and control results show that the prototype meets the design requirements fully.