Comparative performance analysis of Thyristor and IGBT based induction motor soft starters

Riyaz, Ahmed; Iqbal, Asim; Moinoddin, Shaikh; MoinAhmed, SK; Aburub, Haneen

doi:10.4314/ijest.v1i1.58064

Cited by 11 publications

(7 citation statements)

References 19 publications

(17 reference statements)

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“…6, it is concluded that for all the carrier signal frequencies (except 60 Hz) % THD of IGBT inverter output voltage is higher than MOSFET inverter. As in this design no harmonic filter is used, so overall %THD of IGBT inverter is higher than MOSFET inverter, since IGBTs result in large amount of harmonic distortion in output voltage of inverters, so IGBTs should not be used as power switch without harmonic filters [7].…”

Section: Discussionmentioning

confidence: 99%

Comparative Performance Analysis and THD calculation Of Carrier Signal Based IGBT & MOSFET Single Phase Inverter

Pal¹,

Mukherjee²

2014

IOSRJEEE

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In thispaper comparative performance analysis of MOSFET based& IGBT based single phase inverter has been evaluted. The paper compares overall THD of output voltage of thesetwoproposedinverters. Heresinusiodal PWM scheme has been usedwhich compares a sinusoidalreference voltage with a carrier basedmodulating signal to generategating pulse for inverter circuit. Power quality of inverter output voltage has a great importance now a dayswhichdepends on overall THD.This paperdescribes how THD of inverter output voltage canbecontrolled by varyingfrequency of carrier signal frequency.

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Section: Discussionmentioning

confidence: 99%

Comparative Performance Analysis and THD calculation Of Carrier Signal Based IGBT & MOSFET Single Phase Inverter

Pal¹,

Mukherjee²

2014

IOSRJEEE

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“…(1) it is evident that the torque produced is proportional to the square of the applied voltage (T 1 αV 1 2 ). And if the motor is applied with full rated voltage then the motor is accelerated suddenly and the sudden acceleration may cause mechanical stresses in the parts of the motor as well as the associated mechanical linkages [7,8]. Huge starting currents may heat up the motor and also because of sudden increase in currents the feeder voltages may dip affecting other voltage sensitive loads connected to the same feeder [9].…”

Section: Methodsmentioning

confidence: 99%

An Innovative Extinction Angle Control Technique for Soft Starting the Three Phase Squirrel Cage Induction Motor

Faizal¹,

Subburaj²

2016

Journal of Electrical Engineering and Technology

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-The time old conventional starting schemes though have been in use for many years exhibit some drawbacks and such drawbacks can be overcome only with power electronic motor starters. The advent of modern power electronic devices and the control systems supported by modern digital processing units have led to the development of digital power electronic soft starting schemes that guaranteed higher degrees of compliance of the requirements of an ideal soft starter for the induction motor. This research paper presents the results of the comparative study of the two versions of soft starting schemes viz the phase angle control and extinction angle control and brings about the highlights, by way of MATLAB / SIMULINK based simulation and experimental verification, and the advantages of the extinction angle control.

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“…AC choppers, which are control systems for AC machines based on thyristors (SCR) used for soft starting, regulate the voltage supply during machine startup, reducing startup currents [36][37][38]. However, a decrease in torque is observed since it is proportional to the square of the current.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

Gudiño-Ochoa,

Jalomo-Cuevas,

Molinar-Solís

et al. 2023

Energies

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In modern power systems, interharmonics have emerged as noninteger frequency components that appear in current or voltage signals. Double-stage AC-DC-AC converters have been identified as a primary source of interharmonics. Previous studies have highlighted modulation techniques, filters, passive components, unbalanced conditions and DC link effects as relevant factors. However, the interaction between these factors and the inertial properties of induction motors has not been explored. This study assesses various types of AC drives, including variable frequency drives (VFDs) and soft starters (AC choppers), to investigate their interaction with machine inertial properties in interharmonic generation. The employed technique for time-frequency spectral analysis is the wavelet synchrosqueezed transform combined with a clustering method. This paper demonstrates that the interaction of the inertial properties of low-power induction motors with the variations of the switching frequencies of the VFDs, the filters used in the DC link and a soft start indirectly contribute to harmonic generation and potentially to interharmonics in the electrical grid and the outputs of the inverter.

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Comparative performance analysis of Thyristor and IGBT based induction motor soft starters

Cited by 11 publications

References 19 publications

Comparative Performance Analysis and THD calculation Of Carrier Signal Based IGBT & MOSFET Single Phase Inverter

Comparative Performance Analysis and THD calculation Of Carrier Signal Based IGBT & MOSFET Single Phase Inverter

An Innovative Extinction Angle Control Technique for Soft Starting the Three Phase Squirrel Cage Induction Motor

Analysis of Interharmonics Generation in Induction Motors Driven by Variable Frequency Drives and AC Choppers

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