Appropriate voltage control is essential in order to extend the useful life of a battery. However, when universal chargers are used, the design of this control becomes more complicated, given the fact that the battery impedance value may vary considerably, depending not only on the operating point but also on the type, size and aging level of the battery. This paper firstly shows how the voltage regulation can become extremely variable or even unstable when the controller is designed according to the proposals in the literature. We then go on to propose the emulation of a series and parallel impedance with the battery, which is easy to implement and achieves a control that is completely independent of the battery connected. The simulation results obtained for batteries with resistances ranging from 10 mO to 1 O, show the problems with existing controls and confirm that the proposed control response is similar for all the possible range of battery resistances. ; Peer Reviewed ; Postprint (published version)
Parameter-independent battery control based on series and parallel impedance emulation
2019-05-29
Article (Journal)
Electronic Resource
English
DDC: | 629 |
Impedance-based and circuit-parameter-based battery models for HEV power systems
Online Contents | 2008
|Impedance-based and circuit-parameter-based battery models for HEV power systems
Springer Verlag | 2008
|Receding horizon regression analysis for battery impedance parameter estimation
European Patent Office | 2015
|