Title :
The Novel Method for Estimating VRLA Battery State of Charge
Author :
Tairov, Stanislav ; Stevanatto, Luiz Carlos
Author_Institution :
Univ. of Caxias do Sul, Caxias do Sul, Brazil
Abstract :
This work is devoted to impedance measurements in the frequency band corresponding to the Randles model of the first order. There was proposed the estimating technique of the battery SOC based on the Bode phase diagram. The frequency of the local minimum at the impedance phase characteristic makes it possible to assess the loss of the battery capacity at early stages of life. The proposed experimental setup may serve as a prototype for impedance testers in the field.
Keywords :
Bode diagrams; battery charge measurement; battery chargers; electric impedance measurement; lead acid batteries; Bode phase diagram; Randles model; VRLA battery state of charge; battery capacity; frequency band; impedance measurements; impedance phase characteristic; valve regulated lead acid batteries; Batteries; Battery charge measurement; Electrodes; Frequency measurement; Impedance; Impedance measurement; Lead; Impedance diagram; Lead-acid battery; Randles model; State-of-charge; State-of-health;
Conference_Titel :
Electronics, Robotics and Automotive Mechanics Conference (CERMA), 2011 IEEE
Conference_Location :
Cuernavaca, Morelos
Print_ISBN :
978-1-4577-1879-3
DOI :
10.1109/CERMA.2011.40
