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Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system

The stochastic behavior of solar radiation is one of the challenges faced by increasing the hosting capacity of the photovoltaic (PV) power. At times of exceptional high PV power output, unacceptable voltage rise could happen at PV system terminals. Violating the voltage threshold adversely affect...

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Main Authors: Hamza Abunima,, Jiashen Teh,, Hussein Jumma,
Format: Article
Language:English
Published: Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:http://journalarticle.ukm.my/14305/1/13.pdf
http://journalarticle.ukm.my/14305/
http://www.ukm.my/jkukm/volume-311-2019/
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spelling my-ukm.journal.143052020-02-26T06:46:08Z http://journalarticle.ukm.my/14305/ Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system Hamza Abunima, Jiashen Teh, Hussein Jumma, The stochastic behavior of solar radiation is one of the challenges faced by increasing the hosting capacity of the photovoltaic (PV) power. At times of exceptional high PV power output, unacceptable voltage rise could happen at PV system terminals. Violating the voltage threshold adversely affect the power quality and security at the customer sides. In order to avoid this, the PV system is normally disconnected during high PV power output, thus causing losses in power generated. Local control approaches have been introduced as a measure to overcome this issue by using only the inverter. One of these approaches is to control the reactive power output of a PV unit in order to suppress the voltage rise without ceasing the PV system. The results from this paper have shown that the existing reactive power control (RPC) approach is unable to suppress this voltage rise effectively in case of low X/R ratio. Active power curtailment (APC) is another approach that results in remarkable power losses. Hence, this paper proposes a methodology that combines both RPC and APC approaches to limit the voltage rise in a low voltage distribution feeder. The effectiveness of the proposed methodology have been examined and demonstrated in this paper. The obtained results show the superiority of the proposed methodology over the conventional approaches, which enlarges the hosting capacity for PV power penetration in a low voltage distribution system. Penerbit Universiti Kebangsaan Malaysia 2019-04 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/14305/1/13.pdf Hamza Abunima, and Jiashen Teh, and Hussein Jumma, (2019) Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system. Jurnal Kejuruteraan, 31 (1). pp. 107-114. ISSN 0128-0198 http://www.ukm.my/jkukm/volume-311-2019/
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
language English
description The stochastic behavior of solar radiation is one of the challenges faced by increasing the hosting capacity of the photovoltaic (PV) power. At times of exceptional high PV power output, unacceptable voltage rise could happen at PV system terminals. Violating the voltage threshold adversely affect the power quality and security at the customer sides. In order to avoid this, the PV system is normally disconnected during high PV power output, thus causing losses in power generated. Local control approaches have been introduced as a measure to overcome this issue by using only the inverter. One of these approaches is to control the reactive power output of a PV unit in order to suppress the voltage rise without ceasing the PV system. The results from this paper have shown that the existing reactive power control (RPC) approach is unable to suppress this voltage rise effectively in case of low X/R ratio. Active power curtailment (APC) is another approach that results in remarkable power losses. Hence, this paper proposes a methodology that combines both RPC and APC approaches to limit the voltage rise in a low voltage distribution feeder. The effectiveness of the proposed methodology have been examined and demonstrated in this paper. The obtained results show the superiority of the proposed methodology over the conventional approaches, which enlarges the hosting capacity for PV power penetration in a low voltage distribution system.
format Article
author Hamza Abunima,
Jiashen Teh,
Hussein Jumma,
spellingShingle Hamza Abunima,
Jiashen Teh,
Hussein Jumma,
Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
author_facet Hamza Abunima,
Jiashen Teh,
Hussein Jumma,
author_sort Hamza Abunima,
title Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
title_short Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
title_full Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
title_fullStr Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
title_full_unstemmed Reactive-active power control for grid-connected PV arrays to enlarge the hosting capacity in a low voltage distribution system
title_sort reactive-active power control for grid-connected pv arrays to enlarge the hosting capacity in a low voltage distribution system
publisher Penerbit Universiti Kebangsaan Malaysia
publishDate 2019
url http://journalarticle.ukm.my/14305/1/13.pdf
http://journalarticle.ukm.my/14305/
http://www.ukm.my/jkukm/volume-311-2019/
_version_ 1662755950758461440
score 13.211869

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