Simulation and Analysis of PMBLDC Motor fed by Seven Level Inverter with K-map Logic

PM brushless dc motor now a days most useful as well as efficient motor, so need to feed it by more efficient inverter configuration. In this paper seven level inverter has been used with Karnaugh map logic. Seven level inverter has lesser THD than five level and two level inverter. The simulations had been done in MATLAB / Simulink. Here PI control feedback and Hall sensor feedback loop used for control of motor speed dynamically. So, dynamic speed control of BLDC motor has been simulated. PI controller is also used to control the dynamic dc voltage input in to seven level inverter. Here in this paper logic gate control with voltage control is used for seven level inverter. This control is more efficient than five or two level control strategy of inverter.