Study on electric vehicle in-wheel PM SPWM Control technology

This paper is studying on an in-wheel PM vector control system. Motor control system uses Hall position sensors tracking the flux of PM. Applying the SPWM control technology to control current after the vector coordinates changes. For the shortcoming of low-utilization of DC voltage in the traditional SPWM control technology, this paper using the SPWM control technology which adds into a third harmonic of Triangle wave, can improve the utilization of DC voltage ,so that output efficiency of the motor can be much higher; Also, using this methods, can easily realize the design of control Algorithms.