Optimal Operation of Solar Battery Chargers via Mixed-Integer Linear Programming

This letter considers an islanded system consisting of a photovoltaic source connected to a battery storage through power converters, subject to a time varying load. An innovative charging architecture composed of two DC-DC converters and a super-capacitor is considered, and a novel modeling and opt...

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Vydáno v:IEEE control systems letters Ročník 9; s. 384 - 389
Hlavní autoři: Bianchini, Gianni, Casini, Marco, Laudani, Antonino, Maria Lozito, Gabriele
Médium: Journal Article
Jazyk:angličtina
Vydáno: IEEE 2025
Témata:
Batteries
DC-DC power converters
electrical storage systems
Integrated circuit modeling
Load modeling
Mathematical models
Numerical models
Numerical simulation
Optimal control
Photovoltaic systems
Solar energy
State of charge
ISSN:2475-1456, 2475-1456
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Shrnutí:This letter considers an islanded system consisting of a photovoltaic source connected to a battery storage through power converters, subject to a time varying load. An innovative charging architecture composed of two DC-DC converters and a super-capacitor is considered, and a novel modeling and optimal control framework is proposed with the aim of optimizing battery charge/discharge cycles while satisfying given generation and load profiles. Nonlinearities and nonconvex constraints arising from the electrical models are suitably treated in order to devise an optimal control problem involving linear dynamics that can be solved to the global optimum via mixed-integer linear programming. Numerical simulations based on a real data set show the effectiveness of the proposed approach as well as its computational feasibility.
ISSN:2475-1456
2475-1456
DOI:10.1109/LCSYS.2025.3573333