Reducing torque ripple of induction motor control via direct torque control

Azze, Qasim Al; Hameed, Imad Abdul-Rida

doi:10.11591/ijece.v13i2.pp1379-1386

Cited by 5 publications

(3 citation statements)

References 20 publications

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“…The third input variable is the location of the flux in the stator vector, and it is separated into six fuzzy sets (𝜃1 to 𝜃6), each with a triangular membership function is shown in Figure 5(c). the output variable representing inverter switching state is divided into three output groups (Sa, Sb, and Sc), with each group's discourse universe being divided into two fuzzy sets (0 and 1) using a singleton form membership function [23], [24].…”

Section: Fuzzificationmentioning

confidence: 99%

Improvements the direct torque control performance for an induction machine using fuzzy logic controller

Gouaamar,

Bri,

Mekrini

2024

IJECE

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This article examines a solution to the major problems of induction machine control in order to achieve superior dynamic performance. Conventional direct torque control and indirect control with flux orientation have some drawbacks, such as current harmonics, torque ripples, flux ripples, and rise time. In this article, we propose a comparative analysis between previous approaches and the one using fuzzy logic. Results from the simulation show that the direct torque control method using fuzzy logic is more effective in providing a precise and fast response without overshooting, and it eliminates torque and flux fluctuations at low switching frequencies. The demonstrated improvements in dynamic performance contribute to increased operational efficiency and reliability in industrial applications.

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Section: Fuzzificationmentioning

confidence: 99%

Improvements the direct torque control performance for an induction machine using fuzzy logic controller

Gouaamar,

Bri,

Mekrini

2024

IJECE

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“…Each of these methods has its benefits and drawbacks [6]. The main difficulty with the direct method is that a measuring device, must be inserted between the load and the motor or between the driving motor and the generator, respectively, using a torque meters with strain gauges incorporated into a Wheatstone bridge [7], [8]. The indirect method is used to avoid this difficulty particularly by measuring some quantities of the dc motor itself.…”

Section: Introductionmentioning

confidence: 99%

Torque control of a 5 KW, 220 V separately excited DC motor using microcomputer

Ahmed

El‐Emary

Alaas

et al. 2023

IJPEDS

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Fast torque control is crucial for various applications, including diesel-electric locomotives, electric automobiles, and steel plants. The purpose of this paper is to utilize a microcomputer to control the torque of a separately-excited DC motor fed from a single-phase semi-controlled converter. There are numerous strategies to determine torque using direct or indirect methods. The greatest issue of direct strategy using torque meters is that the measuring device must be installed between the motor and the load. In this paper, we avoid this challenge by employing the indirect approach, specifically by monitoring several DC machine-specific quantities such as voltage, current, and speed, which are easier to determine experimentally. This technology is unquestionably helpful in real-world applications since it eliminates any mechanical impact on the installation. This paper describes the system configuration and provides an explanation of the architecture and system features. The simulation of the proposed system using TUSTSIM dynamic simulation program which is capable of simulating the control system with a digital controller in the loop is presented. An implementation of microcomputer-assisted torque control of DC separately excited motor with proportional integral (PI) controllers is presented. A typical oscillography of the driving characteristics is provided along with the experimental results.

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“…The hysteresis band itself has an upper band and lower band limit that allow torque to travel within the area. The faulty selection of the voltage vector will result in a vigorous and uncontrollable movement of torque that leads to overshoot and undershoots within the hysteresis band and causes a large torque ripple and variable switching frequency [10]- [13].…”

Section: Introductionmentioning

confidence: 99%

A simple duty cycle control technique to minimize torque ripple in open-end winding induction motor

Aihsan

Jidin

Alias

et al. 2023

IJPEDS

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Modern electric vehicles (EVs) that drive an induction motor (IM) fed by a traction inverter are fast gaining popularity due to their simple configuration and robustness. The direct torque control (DTC) technique is one of the best control methods to drive the IM, especially in open-end winding configurations, as it offers more voltage vectors. However, the existence of hysteresis controllers and improper switching technique causes larger torque ripples that leads to variable switching frequency. The study will be focused on the open-end winding induction motor where the direct current (DC) power is fed from both sides of the stator windings using the dual inverter configuration. To minimize the torque ripples, a simple switching technique using the duty cycle control method is proposed by injecting a high-frequency square wave into the default inverter switching status to form the new pattern of voltage vectors. The effectiveness of the proposed technique is tested through MATLAB/Simulink software and validated experimentally with a lab-scale setup using a dSPACE controller. The findings show that the proposed method reduces torque ripple by over 50% while keeping the DTC's simple structure.

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Reducing torque ripple of induction motor control via direct torque control

Cited by 5 publications

References 20 publications

Improvements the direct torque control performance for an induction machine using fuzzy logic controller

Improvements the direct torque control performance for an induction machine using fuzzy logic controller

Torque control of a 5 KW, 220 V separately excited DC motor using microcomputer

A simple duty cycle control technique to minimize torque ripple in open-end winding induction motor

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