Overcurrent Protection with Semiconductor Device Protection for Li-Ion Battery Management System in Electric Bicycles

Main Article Content

Nisai H. Fuengwarodsakul
Waraporn Puviwatnangkurn
Bundit Tanboonjit

Abstract

This paper presents a design concept of an overcurrent protection for Li-Ion battery pack used in electric bicycles.  This overcurrent protection scheme is implemented as a part of the battery management system (BMS).  In addition to the conventional protection of the Li-Ion battery pack, the proposed concept extends the protection to cover also semiconductor devices in the motor converter from short-circuit fault and overloading. The protection scheme was developed based on i2t current-time protection characteristics in order to obtain interrupting characteristics in a similar way to conventional protection devices like circuit breaker or fuse.  The developed protection concept was implemented by adapting the software algorithm of a high-grade battery management system platform without any hardware adaptation.  The existing discharging MOSFETs are employed as the electronic circuit breaker mechanism for cutting-off the circuit.  The functionality of the proposed concept was successfully validated by experimental results.

Article Details

How to Cite
Fuengwarodsakul, N. H., Puviwatnangkurn, W., & Tanboonjit, B. (2014). Overcurrent Protection with Semiconductor Device Protection for Li-Ion Battery Management System in Electric Bicycles. ECTI Transactions on Electrical Engineering, Electronics, and Communications, 12(2), 9–18. https://doi.org/10.37936/ecti-eec.2014122.170825
Section
Electrical Power Systems

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