Simulation Model for Brushless DC Motor Loads Controlling

Brushless DC (BLDC) electric motors are used worldwide for their efficiency, controllability, reduced power operability, high durability, and low noise. Replicating the real application set up in the simulation world, BLDC motors can be implemented in modern Spice programs in order to improve verification and testing processes. This paper presents an original behavioral modeling method to control three MOSFET half bridges used to drive a BLDC motor load based on feedback loop provided by the motor shaft angle. The PSpice motor load is implemented using real BLDC motor parameters, shaft angle and shaft speed being the reference motor parameters in order to monitor if a complete rotation is performed. The simulation results are compared with the real measurements and demonstrate the proof of the behavioral modeling concept on this specific automotive application.