Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach

Aiming at the reliable grid connection of photovoltaic (PV) systems in frigid plateau regions, this work first designs a flexible hot dry rock (HDR) hybrid power system (HPS), making full use of the potential of HDR for energy storage and power generation. Based on the operation of HPS, a comprehens...

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Autores principales:	Yang Si, Linrui Ma, Laijun Chen, Hengrui Ma, Shengwei Mei
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	hot dry rock equivalent firm capacity credible capacity assessment distributionally robust method hybrid power system General Works A
Acceso en línea:	https://doaj.org/article/ae162cb7d3c946c486e7b33e3d8ab34d
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spelling	oai:doaj.org-article:ae162cb7d3c946c486e7b33e3d8ab34d2021-12-01T02:11:19ZEquivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach2296-598X10.3389/fenrg.2021.791818https://doaj.org/article/ae162cb7d3c946c486e7b33e3d8ab34d2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fenrg.2021.791818/fullhttps://doaj.org/toc/2296-598XAiming at the reliable grid connection of photovoltaic (PV) systems in frigid plateau regions, this work first designs a flexible hot dry rock (HDR) hybrid power system (HPS), making full use of the potential of HDR for energy storage and power generation. Based on the operation of HPS, a comprehensive energy system credible capacity assessment method considering the overall economy of the system and the reliability of the grid is established. In this method, the power allowable fluctuation rate of the grid as the equivalent firm capacity (EFC) constraint is considered. Then, the constraint is converted into a set of linear chance conditions through the distributionally robust method so that the capacity assessment of the HDR-PV HPS can be converted into a mixed-integer linear optimization problem for a solution. The proposed assessment method is verified by real HDR-PV HPS in the Gonghe Basin of Qinghai Province. The results show that the flexible HDR plant increases the credible capacity of the HPS by 113.38%. The profit of the flexible HDR plant was increased by 3.02% at the same time. The parameter analysis shows that the HDR-PV HPS obtains the most profit when the allowable fluctuation rate is 7%, but 10% can fully utilize the geothermal. The assessment method can effectively assess the credible capacity of the system under the premise of ensuring the overall economy of the HPS, thereby guiding power grid dispatching.Yang SiYang SiLinrui MaLaijun ChenHengrui MaShengwei MeiShengwei MeiFrontiers Media S.A.articlehot dry rockequivalent firm capacitycredible capacity assessmentdistributionally robust methodhybrid power systemGeneral WorksAENFrontiers in Energy Research, Vol 9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	hot dry rock equivalent firm capacity credible capacity assessment distributionally robust method hybrid power system General Works A
spellingShingle	hot dry rock equivalent firm capacity credible capacity assessment distributionally robust method hybrid power system General Works A Yang Si Yang Si Linrui Ma Laijun Chen Hengrui Ma Shengwei Mei Shengwei Mei Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
description	Aiming at the reliable grid connection of photovoltaic (PV) systems in frigid plateau regions, this work first designs a flexible hot dry rock (HDR) hybrid power system (HPS), making full use of the potential of HDR for energy storage and power generation. Based on the operation of HPS, a comprehensive energy system credible capacity assessment method considering the overall economy of the system and the reliability of the grid is established. In this method, the power allowable fluctuation rate of the grid as the equivalent firm capacity (EFC) constraint is considered. Then, the constraint is converted into a set of linear chance conditions through the distributionally robust method so that the capacity assessment of the HDR-PV HPS can be converted into a mixed-integer linear optimization problem for a solution. The proposed assessment method is verified by real HDR-PV HPS in the Gonghe Basin of Qinghai Province. The results show that the flexible HDR plant increases the credible capacity of the HPS by 113.38%. The profit of the flexible HDR plant was increased by 3.02% at the same time. The parameter analysis shows that the HDR-PV HPS obtains the most profit when the allowable fluctuation rate is 7%, but 10% can fully utilize the geothermal. The assessment method can effectively assess the credible capacity of the system under the premise of ensuring the overall economy of the HPS, thereby guiding power grid dispatching.
format	article
author	Yang Si Yang Si Linrui Ma Laijun Chen Hengrui Ma Shengwei Mei Shengwei Mei
author_facet	Yang Si Yang Si Linrui Ma Laijun Chen Hengrui Ma Shengwei Mei Shengwei Mei
author_sort	Yang Si
title	Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
title_short	Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
title_full	Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
title_fullStr	Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
title_full_unstemmed	Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach
title_sort	equivalent firm capacity assessment of hdr-pv hybrid power system: a distributionally robust approach
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ae162cb7d3c946c486e7b33e3d8ab34d
work_keys_str_mv	AT yangsi equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT yangsi equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT linruima equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT laijunchen equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT hengruima equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT shengweimei equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach AT shengweimei equivalentfirmcapacityassessmentofhdrpvhybridpowersystemadistributionallyrobustapproach
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Equivalent Firm Capacity Assessment of HDR-PV Hybrid Power System: A Distributionally Robust Approach

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