scholarly journals The state of charge estimation of lithium-ions battery using combined multi-population genetic algorithm - BP and Kalman filter methods

2022 ◽  
pp. ArticleID:220214
Author(s):  
Qingyun Ma ◽  
Keyword(s):  
Genetic Algorithm ◽  
Kalman Filter ◽  
Population Genetic ◽  
The State ◽  
State Of Charge ◽  
Lithium Ions ◽  
Filter Methods ◽  
Population Genetic Algorithm ◽  
State Of Charge Estimation

Simulation Study on Battery State of Charge Estimation Using Kalman Filter

2016 ◽  
Vol 20 (6) ◽  
pp. 861-866 ◽  
Author(s):  
Furqan Asghar ◽  
◽  
Muhammad Talha ◽  
Sung Ho Kim ◽  
In-Ho Ra ◽  
...  
Keyword(s):  
Kalman Filter ◽  
Estimation Method ◽  
Open Circuit ◽  
The State ◽  
Operating Conditions ◽  
State Of Charge ◽  
Estimation Algorithms ◽  
Battery State Of Charge ◽  
And Performance ◽  
State Of Charge Estimation

Low power dissipation and maximum battery run-time are crucial in portable electronics and EV’s. Battery characteristics and performance varied at different operating conditions. By using accurate, efficient circuit and battery models, designers can predict and optimize battery runtime, current state of charge (SOC) and circuit performance. A great factor in determining the stability of battery system lies within the state of charge estimation. Failing to predict SOC will cause overcharge or over discharge which potentially will bring permanent damage to the battery cells. Open circuit voltage (OCV) has been widely used to estimate the state of charge in estimation algorithms. This paper proposed an accurate and comprehensive battery state of charge (SOC) estimation method by using the Kalman filter. First, Kalman filter for Li-ion battery state of charge estimation was mathematically designed. Then Electrical battery model is being implemented with Kalman filter in matlab Simulink to estimate the exact battery state of charge using estimated battery open circuit voltages. The proposed model shows that system is estimating battery state of charge more accurately than commonly used methods which can help to improve battery performance and lifetime.

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