Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales

The increasing penetration of wind energy in electric power systems leads to a great demand for flexible resources to regulate power fluctuations. This paper focuses on investigating the impacts of the operational flexibility of hydropower generation systems on reducing wind curtailment and load she...

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Main Authors: Xiaokun Man, Hongyan Song, Huanhuan Li
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/16/13/5218
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author Xiaokun Man
Hongyan Song
Huanhuan Li
author_facet Xiaokun Man
Hongyan Song
Huanhuan Li
author_sort Xiaokun Man
collection DOAJ
description The increasing penetration of wind energy in electric power systems leads to a great demand for flexible resources to regulate power fluctuations. This paper focuses on investigating the impacts of the operational flexibility of hydropower generation systems on reducing wind curtailment and load shedding in a hybrid hydro–wind power system. Considering timescale variabilities of wind power, the upward and downward regulation capabilities of hydro flexibility under sub-hour and hour dispatch scales are estimated. Based on developed flexible indicators, the ultimate access ratio of wind power penetration into the power system is obtained by using the estimated probability of insufficient regulation reserves. All these analyses are carried out under the wet and dry periods to better understand their differences with the hydro flexibility. The method and obtained results provide important guidance for the stable and high-efficiency operation of hybrid power systems.
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spelling doaj.art-543c97483ff54f0eb2f5e5103a400b072023-11-18T16:32:08ZengMDPI AGEnergies1996-10732023-07-011613521810.3390/en16135218Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time ScalesXiaokun Man0Hongyan Song1Huanhuan Li2State Grid Shandong Electric Power Construction Company, Jinan 250000, ChinaZhuhai Xujizhi Power Automation Co., Ltd., Zhuhai 519000, ChinaSchool of Water and Environment, Chang’an University, Xi’an 710054, ChinaThe increasing penetration of wind energy in electric power systems leads to a great demand for flexible resources to regulate power fluctuations. This paper focuses on investigating the impacts of the operational flexibility of hydropower generation systems on reducing wind curtailment and load shedding in a hybrid hydro–wind power system. Considering timescale variabilities of wind power, the upward and downward regulation capabilities of hydro flexibility under sub-hour and hour dispatch scales are estimated. Based on developed flexible indicators, the ultimate access ratio of wind power penetration into the power system is obtained by using the estimated probability of insufficient regulation reserves. All these analyses are carried out under the wet and dry periods to better understand their differences with the hydro flexibility. The method and obtained results provide important guidance for the stable and high-efficiency operation of hybrid power systems.https://www.mdpi.com/1996-1073/16/13/5218renewable energyhydropowerwind powercoordinated optimal operationflexibility
spellingShingle Xiaokun Man
Hongyan Song
Huanhuan Li
Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
Energies
renewable energy
hydropower
wind power
coordinated optimal operation
flexibility
title Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
title_full Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
title_fullStr Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
title_full_unstemmed Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
title_short Estimating Hydropower Generation Flexibilities of a Hybrid Hydro–Wind Power System: From the Perspective of Multi-Time Scales
title_sort estimating hydropower generation flexibilities of a hybrid hydro wind power system from the perspective of multi time scales
topic renewable energy
hydropower
wind power
coordinated optimal operation
flexibility
url https://www.mdpi.com/1996-1073/16/13/5218
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AT hongyansong estimatinghydropowergenerationflexibilitiesofahybridhydrowindpowersystemfromtheperspectiveofmultitimescales
AT huanhuanli estimatinghydropowergenerationflexibilitiesofahybridhydrowindpowersystemfromtheperspectiveofmultitimescales