A New Approach for BLDC Motor Performance with Diode Clamped and Cascaded H-Bridge Multilevel Inverter
Abstract
Brushless direct current (BLDC) motors have characteristics of high reliability, simple frame, and small friction. By comparing with PMSM, BLDC motor has the advantages of high speed adjusting performance and power density. BLDC motor widely used for industrial applications. It has constant torque under ideal conditions but practical case torque ripple appeared due to the freewheeling of inactive phases and commutation failure. Torque ripple affects the smoothness of variable speed control. Various control techniques and methods are used to reduce the torque ripple. In this paper analyze the performance of BLDC motor with cascaded H-Bridge multilevel inverter and diode clamped multilevel inverter. This has been simulated using MATLAB simulation software and the torque ripple is calculated.
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