Combined Vector and Direct Controls Based on Five-Level Inverter for High Performance of IM Drive

Oumaymah Elamri,Lhoussain El Bahir,Abdellah Oukassi,Zakariae El Idrissi

doi:10.3390/wevj13010017

Oumaymah Elamri, Lhoussain El Bahir + Show 2 more

Open Access

https://doi.org/10.3390/wevj13010017

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Abstract

The goal of this study was to figure out how to regulate an induction motor in a hybrid electric vehicle. Conventional combined vector and direct control induction motors take advantage of the advantages of vector control and direct torque control. It is also a method that avoids some of the difficulties in implementing both of the two control methods. However, for this method of control, the statoric current has a great wealth of harmonic components which, unfortunately, results in a strong undulation of the torque regardless of the region speed. To solve this problem, a five-level neutral point clamped inverter was used. Through multilevel inverter operation, the voltage is closer to the sine wave. The speed and torque are then successfully controlled with a lower level of ripple in the torque response which improves system performance. The analysis of this study was verified with simulation in the MATLAB/Simulink interface. The simulation results demonstrate the high performance of this control strategy.

Highlights

The major equipment utilized for electromechanical converters worldwide is the induction motor
MATLAB/Simulink structure, it is noted that the distortion of the statoric current and statoric phase current in order to prove the efficiency of the multilevel inverter integration
In order to improve the performance of the induction motor, a five-stage inverter to reduce torque ripple was introduced in this system

Summary

Introduction

The major equipment utilized for electromechanical converters worldwide is the induction motor. It is used in most production sectors and contributes to about two-thirds of electrical production in industrial applications [1]. This effort is part of a project to develop a hybrid electric vehicle. The most important advantages of an induction motor are: Its construction is quite simple in nature which does contain brushes and slip rings and commutators. For a hybrid electric vehicle, the induction motor appears to be the ideal option. Closed-loop induction motors are used for speed-controlled applications [2]. The development of microprocessors and power engineering has led to the implementation of novel techniques for precise control of torque and speed of induction machines [3]

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