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lab 4 847(2) - RYERSON UNIVERSITY DEPARTMENT OF ELECTRICAL...

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RYERSON UNIVERSITY DEPARTMENT OF ELECTRICAL ENGINEERING LAB REPORT For ELE847 Advanced Electromechanical Systems Experiment No 4: Three-phase Voltage Source Inverter and PWM Techniques EXPERIMENTERS: - Fizza Marium (500394409) - Yuqi Huang (500395605) Date of Experiment: October 29 th , 2013 Date of Submission: November 5 th , 2013
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Objective: The purpose of this lab was to build Simulink models for three phase voltage source inverters and investigate PWM inverter performance. Abstract: For variable frequency drives and high power applications a three phase inverter is frequently used. The purpose of this lab is to Three-phase inverters are used for variable-frequency drives and high power applications. In this experiment we investigate the topology of the tree phase inverter and compare the performance of an inverter with a square wave input and a pulse width modulated input. We investigated the effects the different types of inputs have on the output phase voltages, lines voltages and the harmonic spectrum. Three-phase load can be supplied by three separate single-phase inverters, the output from each being 120 o apart with respect to each other. PWM requires that we compare the input of a sinusoidal wave with that of a carrier signal to provide the voltages for the gating signals. The PWM can modify the magnitude and frequency of the output voltage thus helping
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