SIMULATION AND IMPLEMENTATION OF MULTILEVEL INVERTER BASED BLDC MOTOR DRIVE

MULTILEVEL INVERTER BASED BLDC MOTOR DRIVE CONTROLLING

In high power high voltage application BLDC motor are widely used because of higher efficiency, simple in construction, lower cost, less in maintenance and higher torque or high output power per unit volume. For driving the BLDC motor an electrical commutator (inverter) is required. PWM inverter gives good performance. In two level inverter there are problems of harmonics distortions. The increase in the number of steps in voltage is one of the solutions for the above problems. This can be possible by using multilevel inverters. The conventional method produces high switching losses, results in poor drive performance. We have proposes an effective replacement for this. The effectiveness of the neutral clamped multilevel inverter based drive system is verified through simulation using MATLAB Simulink package.