Staff View: Stability assessment and performance analysis of new controller for power quality conditioning in microgrids

Stability assessment and performance analysis of new controller for power quality conditioning in microgrids

Microgrid is an ideal solution to many problems that exist in conventional electrical grids mainly electrical power reliability concerns. Power quality disturbances are of equal concern as power reliability since they have a direct impact on load's life and performance. Microgrid is unable to t...

Full description

Saved in:

Bibliographic Details
Main Authors:	Iqbal, Ahsan, Waqar, Asad, Madurai Elavarasan, Rajvikram, Premkumar, Manoharan, Ahmed, Toqeer, Subramaniam, Umashankar, Mekhilef, Saad
Format:	Article
Published:	Wiley-Hindawi 2021
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://eprints.um.edu.my/28817/
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my.um.eprints.28817
record_format	eprints
spelling	my.um.eprints.288172022-08-12T07:30:19Z http://eprints.um.edu.my/28817/ Stability assessment and performance analysis of new controller for power quality conditioning in microgrids Iqbal, Ahsan Waqar, Asad Madurai Elavarasan, Rajvikram Premkumar, Manoharan Ahmed, Toqeer Subramaniam, Umashankar Mekhilef, Saad TA Engineering (General). Civil engineering (General) Microgrid is an ideal solution to many problems that exist in conventional electrical grids mainly electrical power reliability concerns. Power quality disturbances are of equal concern as power reliability since they have a direct impact on load's life and performance. Microgrid is unable to tackle power quality-related problems in electrical grids without additional support. A unified power quality conditioner (UPQC) is top-ranked power quality compensation device; it minimizes the vulnerability toward power quality problems through its series and shunt compensators, which are connected via two voltage source converters (VSCs). However, the performance of UPQC mainly depends on the controllers directing the VSCs. In this article, the authors have proposed a new controller for microgrid connected UPQC, which controls the switching of VSCs of UPQC by taking the derivative of error at three different stages and then integrates it over time, while being supplemented by three gains, to improve its stability and performance toward power quality problems. The authors have also used fuzzy logic-based sensing to trigger the switching of series or shunt compensators to condition any voltage sag/swell, voltage transients, current harmonics, current unbalance, and voltage unbalance problem. The stability assessment of proposed controller has been carried out by using Lyapunov stability criteria and bode plots. The performance has been analyzed through simulations in MATLAB/Simulink environment on a 400 V, 5.63 kVA LV distribution system. The results have been compared with the classical PI controller and validate that the proposed controller gives a better performance in terms of considered power quality problems like voltage sag/swell, transients and current unbalances and harmonics. The total harmonic distortion with the proposed controller has been reduced to 3.32%. Furthermore, as compared to other standard controllers, the proposed controller ends up in less complexity, fast response time, and stable performance. Wiley-Hindawi 2021-06 Article PeerReviewed Iqbal, Ahsan and Waqar, Asad and Madurai Elavarasan, Rajvikram and Premkumar, Manoharan and Ahmed, Toqeer and Subramaniam, Umashankar and Mekhilef, Saad (2021) Stability assessment and performance analysis of new controller for power quality conditioning in microgrids. International Transactions on Electrical Energy Systems, 31 (6). ISSN 2050-7038, DOI https://doi.org/10.1002/2050-7038.12891 <https://doi.org/10.1002/2050-7038.12891>. 10.1002/2050-7038.12891
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Iqbal, Ahsan Waqar, Asad Madurai Elavarasan, Rajvikram Premkumar, Manoharan Ahmed, Toqeer Subramaniam, Umashankar Mekhilef, Saad Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
description	Microgrid is an ideal solution to many problems that exist in conventional electrical grids mainly electrical power reliability concerns. Power quality disturbances are of equal concern as power reliability since they have a direct impact on load's life and performance. Microgrid is unable to tackle power quality-related problems in electrical grids without additional support. A unified power quality conditioner (UPQC) is top-ranked power quality compensation device; it minimizes the vulnerability toward power quality problems through its series and shunt compensators, which are connected via two voltage source converters (VSCs). However, the performance of UPQC mainly depends on the controllers directing the VSCs. In this article, the authors have proposed a new controller for microgrid connected UPQC, which controls the switching of VSCs of UPQC by taking the derivative of error at three different stages and then integrates it over time, while being supplemented by three gains, to improve its stability and performance toward power quality problems. The authors have also used fuzzy logic-based sensing to trigger the switching of series or shunt compensators to condition any voltage sag/swell, voltage transients, current harmonics, current unbalance, and voltage unbalance problem. The stability assessment of proposed controller has been carried out by using Lyapunov stability criteria and bode plots. The performance has been analyzed through simulations in MATLAB/Simulink environment on a 400 V, 5.63 kVA LV distribution system. The results have been compared with the classical PI controller and validate that the proposed controller gives a better performance in terms of considered power quality problems like voltage sag/swell, transients and current unbalances and harmonics. The total harmonic distortion with the proposed controller has been reduced to 3.32%. Furthermore, as compared to other standard controllers, the proposed controller ends up in less complexity, fast response time, and stable performance.
format	Article
author	Iqbal, Ahsan Waqar, Asad Madurai Elavarasan, Rajvikram Premkumar, Manoharan Ahmed, Toqeer Subramaniam, Umashankar Mekhilef, Saad
author_facet	Iqbal, Ahsan Waqar, Asad Madurai Elavarasan, Rajvikram Premkumar, Manoharan Ahmed, Toqeer Subramaniam, Umashankar Mekhilef, Saad
author_sort	Iqbal, Ahsan
title	Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
title_short	Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
title_full	Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
title_fullStr	Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
title_full_unstemmed	Stability assessment and performance analysis of new controller for power quality conditioning in microgrids
title_sort	stability assessment and performance analysis of new controller for power quality conditioning in microgrids
publisher	Wiley-Hindawi
publishDate	2021
url	http://eprints.um.edu.my/28817/
_version_	1744649141450964992
score	13.211869

Stability assessment and performance analysis of new controller for power quality conditioning in microgrids

Similar Items