Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System

Most conventional voltage control schemes in distribution systems are controlled through the tap change of the transformer. However, as large-capacity distributed generations (DGs) are connected to the distribution system, this leads to a new voltage problem. In this paper, we propose a day-ahead sc...

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Autores principales:	Kun-Yik Jo, Seon-Ju Ahn, Sang-Yun Yun, Joon-Ho Choi
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Distribution system distributed generation under load tap changer quadratic programming line drop compensation voltage control Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/2ced671c3fce4fa9af7d7d4b1f02b924
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spelling	oai:doaj.org-article:2ced671c3fce4fa9af7d7d4b1f02b9242021-12-02T00:00:40ZEfficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System2169-353610.1109/ACCESS.2021.3129821https://doaj.org/article/2ced671c3fce4fa9af7d7d4b1f02b9242021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9623454/https://doaj.org/toc/2169-3536Most conventional voltage control schemes in distribution systems are controlled through the tap change of the transformer. However, as large-capacity distributed generations (DGs) are connected to the distribution system, this leads to a new voltage problem. In this paper, we propose a day-ahead scheduling voltage control scheme of under load tap changer (ULTC) and reactive power of DGs in distribution system. The proposed control scheme improves both voltage profile and quality, and it determines the reactive power reference value for the real power output of DGs as well as the sending end reference voltage of the distribution substation. To account for prediction error, the reactive power reference values of DGs are determined for a real power output section. This can mitigate the uncertainty problem and the prediction error problem of DGs with intermittent characteristics. The proposed control scheme is also a very practical control scheme because it can be applied to the existing control systems of voltage control devices. The proposed control scheme is formulated as a quadratic programming (QP) problem, and it is compared with the conventional voltage control scheme in test 32-bus and modified IEEE 69-bus radial distribution systems; the control effect and results verify the effectiveness of the proposed control scheme.Kun-Yik JoSeon-Ju AhnSang-Yun YunJoon-Ho ChoiIEEEarticleDistribution systemdistributed generationunder load tap changerquadratic programmingline drop compensationvoltage controlElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 157222-157235 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Distribution system distributed generation under load tap changer quadratic programming line drop compensation voltage control Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Distribution system distributed generation under load tap changer quadratic programming line drop compensation voltage control Electrical engineering. Electronics. Nuclear engineering TK1-9971 Kun-Yik Jo Seon-Ju Ahn Sang-Yun Yun Joon-Ho Choi Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
description	Most conventional voltage control schemes in distribution systems are controlled through the tap change of the transformer. However, as large-capacity distributed generations (DGs) are connected to the distribution system, this leads to a new voltage problem. In this paper, we propose a day-ahead scheduling voltage control scheme of under load tap changer (ULTC) and reactive power of DGs in distribution system. The proposed control scheme improves both voltage profile and quality, and it determines the reactive power reference value for the real power output of DGs as well as the sending end reference voltage of the distribution substation. To account for prediction error, the reactive power reference values of DGs are determined for a real power output section. This can mitigate the uncertainty problem and the prediction error problem of DGs with intermittent characteristics. The proposed control scheme is also a very practical control scheme because it can be applied to the existing control systems of voltage control devices. The proposed control scheme is formulated as a quadratic programming (QP) problem, and it is compared with the conventional voltage control scheme in test 32-bus and modified IEEE 69-bus radial distribution systems; the control effect and results verify the effectiveness of the proposed control scheme.
format	article
author	Kun-Yik Jo Seon-Ju Ahn Sang-Yun Yun Joon-Ho Choi
author_facet	Kun-Yik Jo Seon-Ju Ahn Sang-Yun Yun Joon-Ho Choi
author_sort	Kun-Yik Jo
title	Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
title_short	Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
title_full	Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
title_fullStr	Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
title_full_unstemmed	Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System
title_sort	efficient day-ahead scheduling voltage control scheme of ultc and var of distributed generation in distribution system
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/2ced671c3fce4fa9af7d7d4b1f02b924
work_keys_str_mv	AT kunyikjo efficientdayaheadschedulingvoltagecontrolschemeofultcandvarofdistributedgenerationindistributionsystem AT seonjuahn efficientdayaheadschedulingvoltagecontrolschemeofultcandvarofdistributedgenerationindistributionsystem AT sangyunyun efficientdayaheadschedulingvoltagecontrolschemeofultcandvarofdistributedgenerationindistributionsystem AT joonhochoi efficientdayaheadschedulingvoltagecontrolschemeofultcandvarofdistributedgenerationindistributionsystem
_version_	1718403973731319808

Efficient Day-Ahead Scheduling Voltage Control Scheme of ULTC and Var of Distributed Generation in Distribution System

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