Simulation of PMBLDC Motor With Sinusoidal Excitation Using Trapezoidal Control Strategy

The work reported concern with the simulation of a sensor controlled PMBLDC motor for Trapezoidal and Sinusoidal excitations. For both types of excitations Trapezoidal current control strategy is adapted. The simulated model is used to study the variation of speed, torque and current for various loads. A comparative study has been made for both types of excitations. The dynamic response was found to be better with Trapezoidal excitation than with Sinusoidal excitation on no-load. However, for steady state operation on load, Sinusoidal excitation was seen to be better.