Battery State of charge estimation using Unscented Kalman filter
5 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi,
I built a 2RC battery equivalent circuit model in Matlab to find out State of charge (SOC) using Unscented Kalman filter. When I simulated I got the following error
An error occurred while running the simulation and the simulation was terminated
Caused by:
- Sigma points calculation failed because the state covariance is not positive semi-definite. One potential reason is a small Alpha parameter.
Component:Simulink | Category:Block error
The below picture is my Unscented kalman filter block
I think the problem is in the Covariance value.How to choose the covariance value and how to make it as a positive semi-definite .Kindly help me in this.
1 commentaire
Réponses (1)
Monowar Hossain
le 4 Sep 2019
Hi. Samy..
You shoud tune the covarience. It's is random.
0 commentaires
Voir également
Catégories
En savoir plus sur Parameterization Methods dans Help Center et File Exchange
Produits
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!