A Real-Time Smart Charge Controller to efficiency charge processes of LiFePO4 batteries
Abstract
This paper aims to describe an embedded Real Time measurement and control system, based on an innovative, dynamic circuital model for LiFePO4 batteries, which allows to improve the overall efficiency of charge processes and to extend battery life. In applications such as electric traction and stationary storage, where the battery performances are critical, it is essential to have a smart management of the energy flows to improve the Quality of Service and to reduce costs. The smart charge controller proposed in this paper uses a dynamical 2<sup>nd</sup> order circuital model to simulate the battery behavior during charge processes: the algorithm analyzes the relative error between the expected and the measured data and adapt the I-V setpoint dynamically to keep the relative error in a certain window. This lets to reduce the effects of the harmful higher order phenomena, such as gassing, so leading to an improvement in battery efficiency and lifetime.
Event details
- Event
- tc4-2020