Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor

The traditional approach to power factor correction (PFC) in industrial applications involves installation of power factor correction capacitor banks (PFCC). However, with the expanding use of non-linear equipment such as adjustable speed drives (ASDs), power converters etc., power factor (PF) impro...

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Main Author: Adan, Nor Faezah
Format: Thesis
Language:English
English
Published: 2016
Subjects:
Online Access:http://eprints.uthm.edu.my/638/1/24p%20NOR%20FAEZAH%20BINTI%20ADAN.pdf
http://eprints.uthm.edu.my/638/2/NOR%20FAEZAH%20BINTI%20ADAN%20WATERMARK.pdf
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spelling my-uthm-ep.6382021-08-11T08:10:45Z Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor 2016-01 Adan, Nor Faezah TK Electrical engineering. Electronics Nuclear engineering The traditional approach to power factor correction (PFC) in industrial applications involves installation of power factor correction capacitor banks (PFCC). However, with the expanding use of non-linear equipment such as adjustable speed drives (ASDs), power converters etc., power factor (PF) improvement has become difficult due to the presence of harmonics generated by the non-linear equipment. The resulting capacitive impedance of the PFCC may form a resonant circuit with the source inductive reactance at a certain frequency, which is likely to coincide with one of the harmonic frequency of the load. This condition will trigger large oscillatory currents and voltages that may stress the insulation and cause subsequent damage to the PFCC and equipment connected to the power system (PS). Besides that, high PF cannot be achieved due to power distortion. These have imposed the need for an approach to PFC by addressing the harmonics problem. This project analyzes both passive filter and shunt active power filter (SAPF) techniques to mitigate resonance and overall harmonics in the PS through simulation using PSCAD software. A test case is presented to demonstrate the applicability of the proposed techniques for harmonics reduction and PFC at the same time. The implementation of SAPF together with passive filter have resulted in significant improvement on both total harmonic distortion for voltage (THDV) and total demand distortion for current (TDDI) with maximum values of only 2.93% and 9.84% respectively which are within the IEEE 519-2014 standard limits. In terms of PF improvement, the combined filters have excellently achieved the desired PF, 0.95 for firing angle, α values up to 40°. 2016-01 Thesis http://eprints.uthm.edu.my/638/ http://eprints.uthm.edu.my/638/1/24p%20NOR%20FAEZAH%20BINTI%20ADAN.pdf text en public http://eprints.uthm.edu.my/638/2/NOR%20FAEZAH%20BINTI%20ADAN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Electrical and Electronic Engineering
institution Universiti Tun Hussein Onn Malaysia
collection UTHM Institutional Repository
language English
English
topic TK Electrical engineering
Electronics Nuclear engineering
spellingShingle TK Electrical engineering
Electronics Nuclear engineering
Adan, Nor Faezah
Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
description The traditional approach to power factor correction (PFC) in industrial applications involves installation of power factor correction capacitor banks (PFCC). However, with the expanding use of non-linear equipment such as adjustable speed drives (ASDs), power converters etc., power factor (PF) improvement has become difficult due to the presence of harmonics generated by the non-linear equipment. The resulting capacitive impedance of the PFCC may form a resonant circuit with the source inductive reactance at a certain frequency, which is likely to coincide with one of the harmonic frequency of the load. This condition will trigger large oscillatory currents and voltages that may stress the insulation and cause subsequent damage to the PFCC and equipment connected to the power system (PS). Besides that, high PF cannot be achieved due to power distortion. These have imposed the need for an approach to PFC by addressing the harmonics problem. This project analyzes both passive filter and shunt active power filter (SAPF) techniques to mitigate resonance and overall harmonics in the PS through simulation using PSCAD software. A test case is presented to demonstrate the applicability of the proposed techniques for harmonics reduction and PFC at the same time. The implementation of SAPF together with passive filter have resulted in significant improvement on both total harmonic distortion for voltage (THDV) and total demand distortion for current (TDDI) with maximum values of only 2.93% and 9.84% respectively which are within the IEEE 519-2014 standard limits. In terms of PF improvement, the combined filters have excellently achieved the desired PF, 0.95 for firing angle, α values up to 40°.
format Thesis
qualification_name Master of Philosophy (M.Phil.)
qualification_level Master's degree
author Adan, Nor Faezah
author_facet Adan, Nor Faezah
author_sort Adan, Nor Faezah
title Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
title_short Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
title_full Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
title_fullStr Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
title_full_unstemmed Design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
title_sort design a filter for harmonics caused by non-linear load and resonance coused by power factor correction capacitor
granting_institution Universiti Tun Hussein Onn Malaysia
granting_department Faculty of Electrical and Electronic Engineering
publishDate 2016
url http://eprints.uthm.edu.my/638/1/24p%20NOR%20FAEZAH%20BINTI%20ADAN.pdf
http://eprints.uthm.edu.my/638/2/NOR%20FAEZAH%20BINTI%20ADAN%20WATERMARK.pdf
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