Performance Analysis On Multiphase Voltage Source Inverter

Mohd Hafizzudin, Ismail (2012) Performance Analysis On Multiphase Voltage Source Inverter. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Application of power electronic in electric drives enables utilization of ac machine with a phase number higher than three. Such multiphase motor drives are nowadays considered for various applications. Multiphase inverter is invariably supplied from multiphase voltage source inverters (VSIs) and adequate method for VSIs pulse width modulation (PWM) are therefore required. This project deals with sinusoidal pulse width modulation, which enables an improvement in the DC source utilization as well as power output. The viability of the proposed concept is proved by simulating taking 5 phase VSI as an example. Voltage source inverter were implemented using five pairs of IGBT‟s. Implementation of 5-phase SPWM utilizing Ezdsp F28335 and IQ math component is used to model the SPWM in Matlab/Simulink. To generate the SPWM, sine waveform and triangular waveform is needed to get the SPWM. Sine and triangular waveform have their own frequency 50Hz and 2000Hz respectively.Multiphase inverter can improved the current ripple and load that connected with the multiphase inverter were run smoothly. In this experiment, 5-phase voltage source inverter was tested on passive load, resistive-inductive load.

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