Performance Analysis of Induction Motor Fed by Two-Level Inverter and Multi Level Inverter

Document Type : Original Article

Author

Electrical Engineering Department, Faculty of Engineering, Menoufia University, Egypt

Abstract

This paper presents a comparative study to evaluate the performance characteristics of induction motor fed by a conventional two-level inverter and a multi-level inverter. Multi-level inverters are developed recently to overcome the drawbacks of two-level inverters. However, their topologies consist of large number of power switches. As a result, developed topologies are investigated to reduce the number of power switches. In this paper, a five-level H-bridge inverter with reduced count of switches has been presented. It consists of H-bridge and two auxiliary bi-directional switches. Both drives are simulated in MATLAB/SIMULINK environment to evaluate the induction motor performance. Sinusoidal pulse width modulation technique is used to control both inverters. The total harmonic distortion of motor voltage and current waveforms in both drives are investigated and compared. Also, the motor torque and speed curves in both drives are compared and evaluated. Simulation results enhance the improved performance of induction motor fed by proposed multi-level inverter.

Keywords

ERJ. Engineering Research Journal
Volume 46, Issue 2
issued on 1/4/2023 in 4 Parts: Part (1) Electrical Engineering, Part (2): Production Engineering, Part (3): Civil Engineering, Part (4) Architectural Engineering,
April 2023
Pages 205-211

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