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Analysis of Selective Harmonic Elimination for Three-phase Voltage/Current Source Inverter

R. Linga Swamy*

Department of Electrical Engineering, University College of Engineering, Osmania University, Hyderabad, Telangana, India.

Periodicity:April - June'2021
DOI : https://doi.org/10.26634/jee.14.4.18401

Abstract

In this paper, selective harmonic elimination pulse width modulation (SHE-PWM) technique is applied for the control of three-phase voltage source inverter (VSI) with RL and Induction motor loads. SHE-PWM is also applied to three-phase current source inverters (CSI) with RC load. A simplified approach for applying SHE to both VSI and CSI is proposed and analysed. This study enables to calculate switching angles for any number (even or odd) of harmonics to be eliminated. The purpose of calculating switching angles is to eliminate the selected order harmonics to improve the performance, and detailed explanation has been given on how these switching angles can eliminate the selected harmonics. With the proposed approach, along with eliminating the selected harmonic component, the magnitude of the fundamental component is also controlled to the desired value. The entire study has been conducted using MATLAB Simulink Software.

Keywords

Selective Harmonic Elimination (SHE), Pulse Width Modulation (PWM), Voltage Source Inverter (VSI), Current Source Inverter (CSI), Newton-Raphson Method, Total Harmonic Distortion (THD).

How to Cite this Article?

Swamy, R. L. (2021). Analysis of Selective Harmonic Elimination for Three-phase Voltage/Current Source Inverter. i-manager's Journal on Electrical Engineering, 14(4), 27-46. https://doi.org/10.26634/jee.14.4.18401

References

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