SoC-Temperature Based Power Sharing Algorithm for Battery Racks in Grid Ancillary Services
- The battery pack lifetime is severely affected by the State-of-Charge (SOC) and operating temperature. This paper proposes a real-time SoC-Temperature balance power-sharing algorithm for the battery racks to optimize the battery life. The control scheme takes into account the SoC disparity and temperature deviation simultaneously to calculate the active power set-points for battery energy storage system (BESS) units. The proposed algorithm can serve as an alternative to the state of the health (SoH) based power sharing algorithms, which require complex SoH estimation procedures and extensive data for battery age prediction. This method can be particularly useful for second-life batteries, which often show significant heterogeneity in age, internal resistance, and capacity, necessitating a generic yet robust control strategy for their optimal utilization and to minimize degradation. Simulation results demonstrate (i) the suitability of the proposed control scheme for real-time implementation, (ii) the controller efficacy to limit highThe battery pack lifetime is severely affected by the State-of-Charge (SOC) and operating temperature. This paper proposes a real-time SoC-Temperature balance power-sharing algorithm for the battery racks to optimize the battery life. The control scheme takes into account the SoC disparity and temperature deviation simultaneously to calculate the active power set-points for battery energy storage system (BESS) units. The proposed algorithm can serve as an alternative to the state of the health (SoH) based power sharing algorithms, which require complex SoH estimation procedures and extensive data for battery age prediction. This method can be particularly useful for second-life batteries, which often show significant heterogeneity in age, internal resistance, and capacity, necessitating a generic yet robust control strategy for their optimal utilization and to minimize degradation. Simulation results demonstrate (i) the suitability of the proposed control scheme for real-time implementation, (ii) the controller efficacy to limit high battery temperatures, which can help to slow down the ageing process. Overall, this research enables the easy integration of second-life batteries for grid ancillary services, obviating the need for complex SoH estimation procedures by considering battery temperature and SoC.…
Author: | Prashant Pant, Holger C. HesseORCiDGND, Vivek Teja TanjavooruORCiD, Martin Cornejo, Thomas Hamacher, Vedran S. Peric |
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DOI: | https://doi.org/10.1109/ICHVEPS58902.2023.10257507 |
Identifier: | 979-8-3503-1867-8 OPAC HS OPAC extern |
Identifier: | 979-8-3503-1868-5 OPAC HS OPAC extern |
Parent Title (English): | 2023 4th International Conference on High Voltage Engineering and Power Systems (ICHVEPS) |
Publisher: | IEEE |
Place of publication: | Piscataway |
Document Type: | conference proceeding (article) |
Conference: | 4th International Conference on High Voltage Engineering and Power Systems (ICHVEPS), 06-10 August 2023, Bali, Indonesia |
Language: | English |
Date of Publication (online): | 2023/09/26 |
Year of first Publication: | 2023 |
Edition: | 2023 |
Number of pages: | 6 Seiten |
First Page: | 422 |
Last Page: | 427 |
Institutes: | Fakultät Maschinenbau |
IEAT - Institut für Energie- und Antriebstechnik | |
Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften |
Research focus: | FSP1: Energie |
Publication Lists: | Hesse, Holger |
Tanjavooru, Vivek Teja | |
Publication reviewed: | begutachtet |
Release Date: | 2023/10/04 |