Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets

Wind energy has been increasingly adopted to mitigate climate change. However, the variability of wind energy causes wind curtailment, resulting in considerable economic losses for wind farm owners. Wind curtailment can be reduced using battery energy storage systems (BESS) as onsite backup sources....

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Main Authors: Jinhao Li, Changlong Wang, Hao Wang
Format: Article
Language:English
Published: Elsevier 2023-10-01
Series:Energy and AI
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666546823000526
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author Jinhao Li
Changlong Wang
Hao Wang
author_facet Jinhao Li
Changlong Wang
Hao Wang
author_sort Jinhao Li
collection DOAJ
description Wind energy has been increasingly adopted to mitigate climate change. However, the variability of wind energy causes wind curtailment, resulting in considerable economic losses for wind farm owners. Wind curtailment can be reduced using battery energy storage systems (BESS) as onsite backup sources. Yet, this auxiliary role may significantly weaken the economic potential of BESS in energy trading. Ideal BESS scheduling should balance onsite wind curtailment reduction and market bidding, but practical implementation is challenging due to coordination complexity and the stochastic nature of energy prices and wind generation. We investigate the joint-market bidding strategy of a co-located wind-battery system in the spot and Regulation Frequency Control Ancillary Service markets. We propose a novel deep reinforcement learning-based approach that decouples the system’s market participation into two related Markov decision processes for each facility, enabling the BESS to absorb onsite wind curtailment while performing joint-market bidding to maximize overall operational revenues. Using realistic wind farm data, we validated the coordinated bidding strategy, with outcomes surpassing the optimization-based benchmark in terms of higher revenue by approximately 25% and more wind curtailment reduction by 2.3 times. Our results show that joint-market bidding can significantly improve the financial performance of wind-battery systems compared to participating in each market separately. Simulations also show that using curtailed wind generation as a power source for charging the BESS can lead to additional financial gains. The successful implementation of our algorithm would encourage co-location of generation and storage assets to unlock wider system benefits.
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spelling doaj.art-4b92c70ef5e040a99ac33f5cc10b249d2023-10-14T04:45:30ZengElsevierEnergy and AI2666-54682023-10-0114100280Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service marketsJinhao Li0Changlong Wang1Hao Wang2Department of Data Science and AI, Faculty of Information Technology, Monash University, Melbourne, Victoria, AustraliaDepartment of Civil Engineering, Monash University, Melbourne, Victoria, Australia; Monash Energy Institute, Monash University, Melbourne, Victoria, AustraliaDepartment of Data Science and AI, Faculty of Information Technology, Monash University, Melbourne, Victoria, Australia; Monash Energy Institute, Monash University, Melbourne, Victoria, Australia; Corresponding author at: Department of Data Science and AI, Faculty of Information Technology, Monash University, Melbourne, Victoria, Australia.Wind energy has been increasingly adopted to mitigate climate change. However, the variability of wind energy causes wind curtailment, resulting in considerable economic losses for wind farm owners. Wind curtailment can be reduced using battery energy storage systems (BESS) as onsite backup sources. Yet, this auxiliary role may significantly weaken the economic potential of BESS in energy trading. Ideal BESS scheduling should balance onsite wind curtailment reduction and market bidding, but practical implementation is challenging due to coordination complexity and the stochastic nature of energy prices and wind generation. We investigate the joint-market bidding strategy of a co-located wind-battery system in the spot and Regulation Frequency Control Ancillary Service markets. We propose a novel deep reinforcement learning-based approach that decouples the system’s market participation into two related Markov decision processes for each facility, enabling the BESS to absorb onsite wind curtailment while performing joint-market bidding to maximize overall operational revenues. Using realistic wind farm data, we validated the coordinated bidding strategy, with outcomes surpassing the optimization-based benchmark in terms of higher revenue by approximately 25% and more wind curtailment reduction by 2.3 times. Our results show that joint-market bidding can significantly improve the financial performance of wind-battery systems compared to participating in each market separately. Simulations also show that using curtailed wind generation as a power source for charging the BESS can lead to additional financial gains. The successful implementation of our algorithm would encourage co-location of generation and storage assets to unlock wider system benefits.http://www.sciencedirect.com/science/article/pii/S2666546823000526Wind-battery systemWind curtailmentElectricity marketDeep reinforcement learning
spellingShingle Jinhao Li
Changlong Wang
Hao Wang
Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
Energy and AI
Wind-battery system
Wind curtailment
Electricity market
Deep reinforcement learning
title Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
title_full Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
title_fullStr Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
title_full_unstemmed Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
title_short Deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
title_sort deep reinforcement learning for wind and energy storage coordination in wholesale energy and ancillary service markets
topic Wind-battery system
Wind curtailment
Electricity market
Deep reinforcement learning
url http://www.sciencedirect.com/science/article/pii/S2666546823000526
work_keys_str_mv AT jinhaoli deepreinforcementlearningforwindandenergystoragecoordinationinwholesaleenergyandancillaryservicemarkets
AT changlongwang deepreinforcementlearningforwindandenergystoragecoordinationinwholesaleenergyandancillaryservicemarkets
AT haowang deepreinforcementlearningforwindandenergystoragecoordinationinwholesaleenergyandancillaryservicemarkets