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Security-Constrained Active Power Curtailment Considering Line Temperature and Thermal Inertia
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  • Roman Bolgaryn,
  • Jan Wiemer,
  • Alexander Scheidler,
  • Martin Braun
Roman Bolgaryn
Fraunhofer Institute for Energy Economics and Energy System Technology IEE

Corresponding Author:roman.bolgaryn@iee.fraunhofer.de

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Jan Wiemer
Fraunhofer Institute for Energy Economics and Energy System Technology IEE
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Alexander Scheidler
Fraunhofer Institute for Energy Economics and Energy System Technology IEE
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Martin Braun
University of Kassel
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Abstract

We introduce a novel method to determine cost-optimized Active Power Curtailment (APC) of Renewable Energy Sources (RES) considering weather dependent Dynamic Line Rating (DLR). A new formulation of the Security-Constrained Optimal Power Flow (SC-OPF) is developed and applied in a case study. We demonstrate the reduction of the required preventive APC in the (N -0) case for (N -1) secure grid operation due to the consideration of thermal inertia of overhead power lines. Considering thermal inertia allows relying on curative APC that is activated only after an (N -1) situation occurs. The overhead power line temperature, calculated with the temperature dependent power flow, acts as a new limit for line loading and releases unused transmission reserves. The power system can be utilized to a greater extent, with a reduced demand for congestion management.
05 Jun 2023Submitted to IET Generation, Transmission & Distribution
10 Jun 2023Submission Checks Completed
10 Jun 2023Assigned to Editor
30 Jun 2023Reviewer(s) Assigned
29 Jul 2023Review(s) Completed, Editorial Evaluation Pending
03 Aug 2023Editorial Decision: Revise Major
31 Aug 20231st Revision Received
11 Sep 2023Submission Checks Completed
11 Sep 2023Assigned to Editor
11 Sep 2023Review(s) Completed, Editorial Evaluation Pending
11 Sep 2023Reviewer(s) Assigned