Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review

Renewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy. The widespread use of RDGs has been a recent trend in numerous nations. The integration complexity and the inte...

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Main Authors: Hussain A. Alhaiz, Ahmed S. Alsafran, Ali H. Almarhoon
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/14/5576
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author Hussain A. Alhaiz
Ahmed S. Alsafran
Ali H. Almarhoon
author_facet Hussain A. Alhaiz
Ahmed S. Alsafran
Ali H. Almarhoon
author_sort Hussain A. Alhaiz
collection DOAJ
description Renewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy. The widespread use of RDGs has been a recent trend in numerous nations. The integration complexity and the intermittent nature of RDGs can undermine the security and stability of microgrids (µGs). In order to guarantee the effectiveness, dependability, and quality of the electricity delivered, appropriate control methods are necessary. RDGs are being included in single-phase microgrids (1Ø-µGs) to generate energy closer to the user. The creation of low-voltage µGs allows for increased energy efficiency and improved electrical supply dependability. Nevertheless, the combined power pumped by DGs might create power quality (PQ) difficulties, especially during off-grid operations. The three biggest problems with PQ are reactive-power swapping, voltage and frequency (VαF) variations, and current and voltage (IαV) harmonic falsification associated with 1Ø-µGs; these conditions may affect the operation of µGs. The designed and implemented (primary–secondary control systems) in RDGs are the prevalent strategy discussed in the literature for mitigating these PQ difficulties. Furthermore, emerging grid innovations like the electrical spring offer viable alternatives that might reduce some problems through decentralized operation. Although several research studies have addressed PQ concerns in 3Ø-µGs, not all of these solutions are immediately applicable to their 1Ø equivalents. In this paper, the state of the art and a performance comparison of several PQ enhancement strategies of µGs is discussed. Additionally, the primary difficulties and several PQ approach tactics are highlighted. All vital features from high-quality published articles and new dimensions in this field are presented for mitigating PQ difficulties in 1Ø-µGs.
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spelling doaj.art-4b4072d6062f4927b74e93aa4fe46ffc2023-11-18T19:12:28ZengMDPI AGEnergies1996-10732023-07-011614557610.3390/en16145576Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive ReviewHussain A. Alhaiz0Ahmed S. Alsafran1Ali H. Almarhoon2Network Planning & System Improvement Unit, Saudi Electricity Company, Al Ahsa 31982, Saudi ArabiaElectrical Engineering Department, King Faisal University, Al Ahsa 31982, Saudi ArabiaElectrical Engineering Department, Jubail Industrial College, Jubail 31961, Saudi ArabiaRenewable distributed generators (RDGs) have made inroads in recent power systems owing to the environmental effect of traditional generators and their high consumption of electric energy. The widespread use of RDGs has been a recent trend in numerous nations. The integration complexity and the intermittent nature of RDGs can undermine the security and stability of microgrids (µGs). In order to guarantee the effectiveness, dependability, and quality of the electricity delivered, appropriate control methods are necessary. RDGs are being included in single-phase microgrids (1Ø-µGs) to generate energy closer to the user. The creation of low-voltage µGs allows for increased energy efficiency and improved electrical supply dependability. Nevertheless, the combined power pumped by DGs might create power quality (PQ) difficulties, especially during off-grid operations. The three biggest problems with PQ are reactive-power swapping, voltage and frequency (VαF) variations, and current and voltage (IαV) harmonic falsification associated with 1Ø-µGs; these conditions may affect the operation of µGs. The designed and implemented (primary–secondary control systems) in RDGs are the prevalent strategy discussed in the literature for mitigating these PQ difficulties. Furthermore, emerging grid innovations like the electrical spring offer viable alternatives that might reduce some problems through decentralized operation. Although several research studies have addressed PQ concerns in 3Ø-µGs, not all of these solutions are immediately applicable to their 1Ø equivalents. In this paper, the state of the art and a performance comparison of several PQ enhancement strategies of µGs is discussed. Additionally, the primary difficulties and several PQ approach tactics are highlighted. All vital features from high-quality published articles and new dimensions in this field are presented for mitigating PQ difficulties in 1Ø-µGs.https://www.mdpi.com/1996-1073/16/14/5576frequency controlpower qualityrenewable distributed generatorsvoltage control1Ø-µGs
spellingShingle Hussain A. Alhaiz
Ahmed S. Alsafran
Ali H. Almarhoon
Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
Energies
frequency control
power quality
renewable distributed generators
voltage control
1Ø-µGs
title Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
title_full Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
title_fullStr Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
title_full_unstemmed Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
title_short Single-Phase Microgrid Power Quality Enhancement Strategies: A Comprehensive Review
title_sort single phase microgrid power quality enhancement strategies a comprehensive review
topic frequency control
power quality
renewable distributed generators
voltage control
1Ø-µGs
url https://www.mdpi.com/1996-1073/16/14/5576
work_keys_str_mv AT hussainaalhaiz singlephasemicrogridpowerqualityenhancementstrategiesacomprehensivereview
AT ahmedsalsafran singlephasemicrogridpowerqualityenhancementstrategiesacomprehensivereview
AT alihalmarhoon singlephasemicrogridpowerqualityenhancementstrategiesacomprehensivereview