Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints

The uncertainty associated with loads and renewable-energy sources affects active distribution networks in terms of the operation and voltage stability on different time scales. To address this problem, a multi-time-scale voltage stability constrained optimal scheduling framework is proposed, which...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Tianhao Song, Xiaoqing Han, Baifu Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	active distribution network energy storage optimal scheduling voltage stability Technology T
Acceso en línea:	https://doaj.org/article/906a32a934254ff0b4cce326a08c735c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:906a32a934254ff0b4cce326a08c735c
record_format	dspace
spelling	oai:doaj.org-article:906a32a934254ff0b4cce326a08c735c2021-11-11T15:54:18ZMulti-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints10.3390/en142171071996-1073https://doaj.org/article/906a32a934254ff0b4cce326a08c735c2021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7107https://doaj.org/toc/1996-1073The uncertainty associated with loads and renewable-energy sources affects active distribution networks in terms of the operation and voltage stability on different time scales. To address this problem, a multi-time-scale voltage stability constrained optimal scheduling framework is proposed, which includes a day-ahead model with a coarse-grained time resolution and an intra-day model with a fine-grained time resolution. The day-ahead economic-scheduling model maps out a scheme to operate different types of devices with the aim of minimizing the network losses. Following the scheme, the intra-day corrective-adjustment model based on model predictive control is proposed to regulate the flexible devices, such as the energy storage systems and the photovoltaic converters. In particular, the proposed optimal scheduling framework embeds a voltage stability constraint which is constructed by using a novel index, defined based on the Distflow model Jacobian. As the index at each bus is a linear function of the locally measurable power flow variables, the proposed constraint does not introduce additional computational burdens. Simulation results demonstrate the necessity and effectiveness of the proposed multi-time-scale voltage stability constrained optimal scheduling model. The results also show that the variation trend of the proposed index is consistent with that of the commonly used voltage stability index.Tianhao SongXiaoqing HanBaifu ZhangMDPI AGarticleactive distribution networkenergy storageoptimal schedulingvoltage stabilityTechnologyTENEnergies, Vol 14, Iss 7107, p 7107 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	active distribution network energy storage optimal scheduling voltage stability Technology T
spellingShingle	active distribution network energy storage optimal scheduling voltage stability Technology T Tianhao Song Xiaoqing Han Baifu Zhang Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
description	The uncertainty associated with loads and renewable-energy sources affects active distribution networks in terms of the operation and voltage stability on different time scales. To address this problem, a multi-time-scale voltage stability constrained optimal scheduling framework is proposed, which includes a day-ahead model with a coarse-grained time resolution and an intra-day model with a fine-grained time resolution. The day-ahead economic-scheduling model maps out a scheme to operate different types of devices with the aim of minimizing the network losses. Following the scheme, the intra-day corrective-adjustment model based on model predictive control is proposed to regulate the flexible devices, such as the energy storage systems and the photovoltaic converters. In particular, the proposed optimal scheduling framework embeds a voltage stability constraint which is constructed by using a novel index, defined based on the Distflow model Jacobian. As the index at each bus is a linear function of the locally measurable power flow variables, the proposed constraint does not introduce additional computational burdens. Simulation results demonstrate the necessity and effectiveness of the proposed multi-time-scale voltage stability constrained optimal scheduling model. The results also show that the variation trend of the proposed index is consistent with that of the commonly used voltage stability index.
format	article
author	Tianhao Song Xiaoqing Han Baifu Zhang
author_facet	Tianhao Song Xiaoqing Han Baifu Zhang
author_sort	Tianhao Song
title	Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
title_short	Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
title_full	Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
title_fullStr	Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
title_full_unstemmed	Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints
title_sort	multi-time-scale optimal scheduling in active distribution network with voltage stability constraints
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/906a32a934254ff0b4cce326a08c735c
work_keys_str_mv	AT tianhaosong multitimescaleoptimalschedulinginactivedistributionnetworkwithvoltagestabilityconstraints AT xiaoqinghan multitimescaleoptimalschedulinginactivedistributionnetworkwithvoltagestabilityconstraints AT baifuzhang multitimescaleoptimalschedulinginactivedistributionnetworkwithvoltagestabilityconstraints
_version_	1718432927970230272

Multi-Time-Scale Optimal Scheduling in Active Distribution Network with Voltage Stability Constraints

Ejemplares similares