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Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD

Master of Science in Electrical Power Engineering

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Bibliographic Details
Main Author: Siti Izyan, Md Zaini
Other Authors: Muhammad Mokhzaini, Azizan, Dr.
Format: Dissertation
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Electric motors, Induction
Electric currents
Power electronics
Induction motor
Inrush current
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72842
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spelling my.unimap-728422023-02-16T12:53:48Z Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD Siti Izyan, Md Zaini Muhammad Mokhzaini, Azizan, Dr. Electric motors, Induction Electric currents Power electronics Induction motor Inrush current Master of Science in Electrical Power Engineering Inrush current can be determined as current drawn by an induction motor during start-up period. This starting current will shoot up about 5 to 7 times of rated current. Usually, it was occurred at the starting period of induction motor and effect the lifetime of motor.To overcome this, several techniques can be implemented to reduce the high starting current. One of the technique isusing the soft starter which is the most convincing because of its simplicity in configuration, easy to control and low cost. The configuration involves power semiconductor devicewhich is thyristor that acts as a switch to control the current flow from power source to the motor. The current output can be controlled by varying the firing angle. Thechanging of firing angle is managed by a firing angle control circuit. The whole research was conducted through PSCAD/EMTDC software. In simulation, the power source, AC voltage was connected directly to the induction motor called direct on-line (DOL) and the DOL circuit was simulated to analyse the inrush current. From the simulation of DOL, the soft starter was added to the original circuit. The firing angle for soft starter was changed to several angles and what can be concluded that the high current succeed to mitigate with the altering firing angles.Simulation DOL and soft starter method were carried out with 3 different rated power which were 116kVA, 232kVA and 435kVA. Higher rated power resulting higher inrush current. As for the overall result, the inrush current was mitigated for all 3 rated power by using soft starter with the best adjusted firing angle. 2017 2021-11-25T01:34:43Z 2021-11-25T01:34:43Z Dissertation http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72842 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Electrical Systems Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Electric motors, Induction
Electric currents
Power electronics
Induction motor
Inrush current
spellingShingle Electric motors, Induction
Electric currents
Power electronics
Induction motor
Inrush current
Siti Izyan, Md Zaini
Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
description Master of Science in Electrical Power Engineering
author2 Muhammad Mokhzaini, Azizan, Dr.
author_facet Muhammad Mokhzaini, Azizan, Dr.
Siti Izyan, Md Zaini
format Dissertation
author Siti Izyan, Md Zaini
author_sort Siti Izyan, Md Zaini
title Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
title_short Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
title_full Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
title_fullStr Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
title_full_unstemmed Comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using PSCAD
title_sort comparative study of motor high inrush current mitigation by improvisation of soft starter firing angle using pscad
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72842
_version_ 1772813063011958784
score 13.214268

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