Optimal microgrid scheduling to provide operational flexibility in main grid operation

The penetration of renewable energy sources into power systems has been increasing to mitigate the concerns for the environment, global warming, and rising fuel prices. However, the variability and uncertainty of power output from renewable energy sources raise challenging issues for power system op...

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Main Authors: Hyeongon Park, Si Young Lee
Format: Article
Language:English
Published: Elsevier 2020-02-01
Series:Energy Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2352484719306808
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author Hyeongon Park
Si Young Lee
author_facet Hyeongon Park
Si Young Lee
author_sort Hyeongon Park
collection DOAJ
description The penetration of renewable energy sources into power systems has been increasing to mitigate the concerns for the environment, global warming, and rising fuel prices. However, the variability and uncertainty of power output from renewable energy sources raise challenging issues for power system operation, which draws attention to the need for operational flexibility. In this paper, we propose an optimal scheduling method for a microgrid that can provide the flexible ramping capability to the main grid. To investigate the effectiveness of the proposed method, a microgrid, which has an energy storage system and small-scale dispatchable generating units in order to not deploy the involuntary load shedding in an emergency condition, is postulated, and numerical simulations are carried out. We consider the energy storage system and dispatchable units as providers for flexible ramping capability and show that the proposed approach enables highly cost-effective distribution system operation. The simulation results verify that scheduling performance can be improved using the proposed method compared with the conventional scheduling method. Keywords: Microgrid, Flexible ramping capability, Power system operation, Islanded operation
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spelling doaj.art-70440f8bb79a492980e8756d19a0da052022-12-21T23:51:06ZengElsevierEnergy Reports2352-48472020-02-016172176Optimal microgrid scheduling to provide operational flexibility in main grid operationHyeongon Park0Si Young Lee1Korea Polytechnic University, Siheung-si, Gyeonggi-do 15073, South KoreaCorresponding author.; Korea Polytechnic University, Siheung-si, Gyeonggi-do 15073, South KoreaThe penetration of renewable energy sources into power systems has been increasing to mitigate the concerns for the environment, global warming, and rising fuel prices. However, the variability and uncertainty of power output from renewable energy sources raise challenging issues for power system operation, which draws attention to the need for operational flexibility. In this paper, we propose an optimal scheduling method for a microgrid that can provide the flexible ramping capability to the main grid. To investigate the effectiveness of the proposed method, a microgrid, which has an energy storage system and small-scale dispatchable generating units in order to not deploy the involuntary load shedding in an emergency condition, is postulated, and numerical simulations are carried out. We consider the energy storage system and dispatchable units as providers for flexible ramping capability and show that the proposed approach enables highly cost-effective distribution system operation. The simulation results verify that scheduling performance can be improved using the proposed method compared with the conventional scheduling method. Keywords: Microgrid, Flexible ramping capability, Power system operation, Islanded operationhttp://www.sciencedirect.com/science/article/pii/S2352484719306808
spellingShingle Hyeongon Park
Si Young Lee
Optimal microgrid scheduling to provide operational flexibility in main grid operation
Energy Reports
title Optimal microgrid scheduling to provide operational flexibility in main grid operation
title_full Optimal microgrid scheduling to provide operational flexibility in main grid operation
title_fullStr Optimal microgrid scheduling to provide operational flexibility in main grid operation
title_full_unstemmed Optimal microgrid scheduling to provide operational flexibility in main grid operation
title_short Optimal microgrid scheduling to provide operational flexibility in main grid operation
title_sort optimal microgrid scheduling to provide operational flexibility in main grid operation
url http://www.sciencedirect.com/science/article/pii/S2352484719306808
work_keys_str_mv AT hyeongonpark optimalmicrogridschedulingtoprovideoperationalflexibilityinmaingridoperation
AT siyounglee optimalmicrogridschedulingtoprovideoperationalflexibilityinmaingridoperation