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Tech Blogging with WiredWhite

Tech Blogging with WiredWhite

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Flux Barrier Design Method for Torque Ripple Reduction in Synchronous Reluctance Machines

Abstract—The current publication introduces the flux barrier design method and the concrete design of the synchronous reluctance machine with the reduced torque pulsations. The reviewed method provides the accelerated approach for designing of rotor flux barriers, based on Fast Fourier transforms and simple mathematical expressions. The proposed method has been utilized in the rotor design of synchronous reluctance machine and has shown desired results in reduced torque ripple. The innovative nonsymmetrical geometries for rotor flux barriers created on the basis of proposed flux barrier design method have been implemented and proved as beneficial. Keywords—Flux barriers; torque ripple reduction; FEM; synchronous reluctance machines.


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Analysis and Hardware Implementation of 3-Level and 5-Level CHB Multilevel Inverters Using SPWM

Author: Waqas Javaid

ABSTRACT

In this report a brief review on multilevel inverters and different multilevel inverter topologies are discussed. Inverter is a power electronic device that converts DC power into AC power at desired output voltage and frequency. Multilevel inverters nowadays have become an interesting area in the field of industrial applications. This Project mainly involves analysis of Cascaded H-bridge topology, conduction loss and switching loss calculations, LC filter design and different SPWM modulation techniques. It also involves implementing 3-level CHB MLI with and without SPWM on the Arduino UNO board.

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