Comparison of Intelligent Methods of SOC Estimation for Battery of Photovoltaic System
Journal Title: International Journal of Advanced Computer Science & Applications - Year 2018, Vol 9, Issue 9
Abstract
It is essential to estimate the state of charge (SOC) of lead-acid batteries to improve the stability and reliability of photovoltaic systems. In this paper, we propose SOC estimation methods for a lead-acid battery using a feed-forward neural network (FFNN) and a recurrent neural network (RNN) with a gradient descent (GD), a levenberg–marquardt (LM), and a scaled conjugate gradient (SCG). Additionally, an adaptive neuro-fuzzy inference system (ANFIS) with a hybrid method was proposed. The voltage and current are used as input data of neural networks to estimate the battery SOC. Experimental results show that the RNN with LM has the best performance for the mean squared error, but the ANFIS has the highest convergence speed.
Authors and Affiliations
Tae-Hyun Cho, Hye-Rin Hwang, Jong-Hyun Lee, In-Soo Lee
Keywords
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- EP ID EP393725
- DOI 10.14569/IJACSA.2018.090907
- Views 94
- Downloads 0
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