Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System

The growing demand for green energy has driven the development of large-capacity hydroelectric plants away from load centers. In this setting, one key aspect is constructing electrical networks for efficient power transmission to the primary grid, which is sometimes combined with high-voltage direct...

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Autores principales:	Danilo P. C. Filho, Erlon C. Finardi, Antonio F. C. Aquino
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Hydroelectric power generation optimal scheduling real-time dispatch high voltage direct current Santo Antonio plant optimal power flow Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/1a9aed41af684f4c82514d186cd88e38
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spelling	oai:doaj.org-article:1a9aed41af684f4c82514d186cd88e382021-11-18T00:02:10ZReal-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System2169-353610.1109/ACCESS.2021.3124041https://doaj.org/article/1a9aed41af684f4c82514d186cd88e382021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9592796/https://doaj.org/toc/2169-3536The growing demand for green energy has driven the development of large-capacity hydroelectric plants away from load centers. In this setting, one key aspect is constructing electrical networks for efficient power transmission to the primary grid, which is sometimes combined with high-voltage direct-current systems. However, on-site applications based on real-time dispatch problems often do not model AC power flow (ACPF) constraints, partly because of a lack of appealing methods to simultaneously include the dispatch and ACPF operating characteristics. Furthermore, a precise hydropower production function, a priority in this type of problem, can introduce additional complexity, and practical applications commonly sacrifice grid-connection modeling. This paper proposes a technique for incorporating ACPF constraints in real-time hydro dispatch, promoting widespread methods and optimization tools. The proposed strategy is based on mixed-integer quadratic programming that yields convergent electrical variables compatible with the exact ACPF to minimize a compromise between transmission losses and turbined outflow. The testbed is the Santo Antônio system, composed of 50 generating units, 13 power transformers, and 41 buses. Simulations based on real-life data demonstrate the impact of ACPF modeling, achieving consistently reduced losses above 5%, at the cost of a higher processing time.Danilo P. C. FilhoErlon C. FinardiAntonio F. C. AquinoIEEEarticleHydroelectric power generationoptimal schedulingreal-time dispatchhigh voltage direct currentSanto Antonio plantoptimal power flowElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 149322-149337 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Hydroelectric power generation optimal scheduling real-time dispatch high voltage direct current Santo Antonio plant optimal power flow Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Hydroelectric power generation optimal scheduling real-time dispatch high voltage direct current Santo Antonio plant optimal power flow Electrical engineering. Electronics. Nuclear engineering TK1-9971 Danilo P. C. Filho Erlon C. Finardi Antonio F. C. Aquino Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
description	The growing demand for green energy has driven the development of large-capacity hydroelectric plants away from load centers. In this setting, one key aspect is constructing electrical networks for efficient power transmission to the primary grid, which is sometimes combined with high-voltage direct-current systems. However, on-site applications based on real-time dispatch problems often do not model AC power flow (ACPF) constraints, partly because of a lack of appealing methods to simultaneously include the dispatch and ACPF operating characteristics. Furthermore, a precise hydropower production function, a priority in this type of problem, can introduce additional complexity, and practical applications commonly sacrifice grid-connection modeling. This paper proposes a technique for incorporating ACPF constraints in real-time hydro dispatch, promoting widespread methods and optimization tools. The proposed strategy is based on mixed-integer quadratic programming that yields convergent electrical variables compatible with the exact ACPF to minimize a compromise between transmission losses and turbined outflow. The testbed is the Santo Antônio system, composed of 50 generating units, 13 power transformers, and 41 buses. Simulations based on real-life data demonstrate the impact of ACPF modeling, achieving consistently reduced losses above 5%, at the cost of a higher processing time.
format	article
author	Danilo P. C. Filho Erlon C. Finardi Antonio F. C. Aquino
author_facet	Danilo P. C. Filho Erlon C. Finardi Antonio F. C. Aquino
author_sort	Danilo P. C. Filho
title	Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
title_short	Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
title_full	Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
title_fullStr	Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
title_full_unstemmed	Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System
title_sort	real-time dispatch for multi-unit hydroelectric plants with ac optimal power flow: the case of the santo antonio system
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/1a9aed41af684f4c82514d186cd88e38
work_keys_str_mv	AT danilopcfilho realtimedispatchformultiunithydroelectricplantswithacoptimalpowerflowthecaseofthesantoantoniosystem AT erloncfinardi realtimedispatchformultiunithydroelectricplantswithacoptimalpowerflowthecaseofthesantoantoniosystem AT antoniofcaquino realtimedispatchformultiunithydroelectricplantswithacoptimalpowerflowthecaseofthesantoantoniosystem
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Real-Time Dispatch for Multi-Unit Hydroelectric Plants With AC Optimal Power Flow: The Case of the Santo Antonio System

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