A new estimation method of state of charge using terminal voltage and internal resistance for lead acid battery

2003 ◽  
Author(s):  
S. Sato ◽  
A. Kawamura
Keyword(s):  
Estimation Method ◽  
Internal Resistance ◽  
State Of Charge ◽  
Lead Acid Battery ◽  
Terminal Voltage ◽  
Lead Acid

Modelling and Simulation of a Lead Acid Battery for Traction Applications

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
D. Elangovan ◽  
G. Arunkumar ◽  
H.M. Tania ◽  
J.K Patra
Keyword(s):  
Equivalent Circuit ◽  
State Of Charge ◽  
Lead Acid Battery ◽  
Cell Temperature ◽  
Third Order ◽  
Electrical Equivalent Circuit ◽  
Battery Model ◽  
Terminal Voltage ◽  
Simulation Results ◽  
Lead Acid

In this paper, modeling of a lead acid battery was done by electrical equivalent circuit approach. Model based equivalent circuit approach was used to find the state of charge, terminal voltage, cell temperature and life of the battery at various temperatures. Based on complexity and accuracy, Thevinin’s third order equivalent battery model was simulated using MATLAB Simulink software. The simulation results were validated with the experimental state of charge and terminal voltage values.

Design of Armored Vehicles Lead-Acid Battery State Monitoring System

2012 ◽  
Vol 591-593 ◽  
pp. 296-300
Author(s):  
Gang Li ◽  
Yong Cheng Xie ◽  
Guang Sheng Li ◽  
Ning Wei
Keyword(s):  
User Interface ◽  
Monitoring System ◽  
Internal Resistance ◽  
High Accuracy ◽  
Lead Acid Battery ◽  
State Monitoring ◽  
Terminal Voltage ◽  
Armored Vehicles ◽  
Lock In ◽  
Lead Acid

In order to raise the maintenance efficiency of the armored vehicles Lead-Acid battery, this paper introduces an state monitoring system of Lead-Acid battery. The system used the ATMEGA8 as the control core. Through designing measuring circuit of the terminal voltage, internal resistance and temperature as well as building a human-computer interaction user interface using the C++builder, the system can fast and accurately monitors the state of battery. At the same time, we try to use the lock-in amplifying technology to measure the battery inner resistance. The experiment results show that the system easy to use and has a high accuracy.

Correlation between Battery Voltage under Loaded Condition and Estimated State of Charge at Valve-Regulated Lead Acid Battery on Discharge Condition using Open Circuit Voltage Method

2018 ◽  
Vol 9 (1) ◽  
pp. 357
Author(s):  
Ahmad Qurthobi ◽  
Anggita Bayu Krisna Pambudi ◽  
Dudi Darmawan ◽  
Reza Fauzi Iskandar
Keyword(s):  
Open Circuit Voltage ◽  
Open Circuit ◽  
State Of Charge ◽  
Lead Acid Battery ◽  
Battery Voltage ◽  
Measured Voltage ◽  
The Common ◽  
Loaded Voltage ◽  
Vrla Battery ◽  
Lead Acid

One of the common methods that developed to predict state of charge is open circuit voltage (OCV) method. The problem which commonly occurs is to find the correction parameter between open circuit voltage and loaded voltage of the battery. In this research, correlation between state of charge measurement at loaded condition of a Panasonic LC-VA1212NA1, which is a valve-regulated lead acid (VRLA) battery, and open circuit voltage had been analyzed. Based on the results of research, correlation between battery’s measured voltage under loaded condition and open circuit voltage could be approached by two linearization area. It caused by K v ’s values tend to increase when measured voltage under loaded condition V M < 11.64 volt. However, K v values would be relatively stable for every V M ≥ 11.64 volts. Therefore, estimated state of charge value, in respect to loaded battery voltage, would increase slower on V M < 11.64 volts and faster on other range.

Study on Stable Estimation Method for Lead-acid Battery SOC by Extended Kalman Filter

2014 ◽  
Vol 7 (4) ◽  
pp. 429-438 ◽  
Author(s):  
Changhao Piao ◽  
Mingliang Liu ◽  
Ling Su ◽  
Zuncheng Li ◽  
Chongdu Cho ◽  
...  
Keyword(s):  
Kalman Filter ◽  
Extended Kalman Filter ◽  
Estimation Method ◽  
Lead Acid Battery ◽  
Stable Estimation ◽  
Lead Acid
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