Naslov
Comparison of Two Battery Charging Control System Designs without and with SoC Estimator

Autori
Pavković, Danijel ; Kozhushko, Yuliia ; Premec, Antun ; Krznar, Matija ; Cipek, Mihael

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 16th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES 2021) / - , 2021

Skup
16th Conference on Sustainable Development of Energy, Water and Environment Systems (SDEWES)

Mjesto i datum
Dubrovnik, Hrvatska, 10.10.2021. - 15.10.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Lithium-Iron-Phosphate Battery Cell ; Constant-Current/Constant Voltage Charging ; Cascade Control ; State-of-Charge Estimation ; Extended Kalman Filter ; Simulations

Sažetak
This paper presents two designs of constant- current/constant voltage battery charging control systems in the form of a cascade control system arrangement with the superimposed proportional- integral (PI) controller commanding the battery charging current reference to the inner PI controller-based current control loop. The superimposed control level can be realized as: (i) battery terminal voltage limiting control loop, or (ii) battery state-of-charge (SoC) control loop based on SoC estimation using an extended Kalman filter (EKF), augmented by the aforementioned battery terminal voltage controller for preventing battery over-voltages. The control system design is based on the suitable control-oriented model of the battery charging process and utilization of damping optimum criterion. The effectiveness of the proposed battery charging control system has been verified by means of simulations using the readily available model of a lithium-iron- phosphate (LiFePO4) battery cell.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Strojarstvo

POVEZANOST RADA