Abstract
In this paper, we propose a special design for energy recovery from used batteries into a renewable power source. The proposed technique consists in designing and implementing proportional-integral (PI) and fuzzy-logic (FL) controllers to ensure a high ability of conversion. The suggested controllers are designed specially to adapt the dynamic aspect of the batteries' charge and discharge. To obtain the optimum residual energy, both methods are compared using MATLAB-Simulink. In our case, it turned out that the fuzzy-logic controller method improves the performance and the rapidity of the system.