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/ http://journalarticle.ukm.my/14305/ http://journalarticle.ukm.my/14305/1/13.pdf

id	ukm-14305
recordtype	eprints
spelling	ukm-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/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
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/ http://journalarticle.ukm.my/14305/ http://journalarticle.ukm.my/14305/1/13.pdf
first_indexed	2023-09-18T20:06:48Z
last_indexed	2023-09-18T20:06:48Z
_version_	1777407212446023680

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

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