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Framework to Test DC-DC Converters Developed for a Decentralized Battery Management System

  • DC- DC converters control the power flow and thus the power distribution between the components on different voltage levels. They are essential for (dis)charging batteries and influence the safety and stability of the entire battery management system (BMS). Therefore, testing the functionality and the reliability of DC-DC converters is crucial. This is especially true for decentralized battery management systems (DBMS), where multiple nodes communicate to collectively control the system. The used DC-DC converters are modified to parameterize them during operation via microcontroller interfaces. Integrating the communication into the control loop requires an analysis of the control behavior due to additional delays. Therefore, this paper proposes a framework to test DC-DC converters considering the control and communication perspectives. The response time, the control accuracy and stability of these DC-DC converters, e.g., under continuous and abrupt load changes, are measured in automated tests. The dedicated software framework simulates the DBMS and stimulates the hardware components (e.g. electronic loads, data acquisition) via respective interfaces (CAN, RS232). This allows the test of various DC-DC converters with flexibly adaptable load and power generation profiles. An initial application validates the test framework by verifying the aforementioned aspects and thus the applicability of a DC-DC converter within the DBMS.

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Metadaten
Author:Andrea ReindlORCiD, Thomas Singer, Hans MeierORCiD, Michael NiemetzORCiDGND, Sangyoung Park
DOI:https://doi.org/10.23919/AE51540.2021.9542882
Parent Title (English):2021 International Conference on Applied Electronics (AE): 7-8 Sept. 2021, Pilsen, Czech Republic
Publisher:IEEE
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2021
Release Date:2022/02/16
Tag:Batteries; Battery management system; Battery management systems; Control systems; DC-DC converter; DC-DC power converters; Power system stability; Python; Stability analysis; Time measurement; decentralized control; hardware in the loop testing; object oriented programming; system testing
First Page:1
Last Page:6
Institutes:Fakultät Elektro- und Informationstechnik
Fakultät Elektro- und Informationstechnik / Labor Datenkommunikation
Fakultät Elektro- und Informationstechnik / Labor Industrielle Elektronik
research focus:Energie und Mobilität
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG