LOW VOLTAGE APPARATUS ›› 2023, Vol. 0 ›› Issue (9): 55-61.doi: 10.16628/j.cnki.2095-8188.2023.09.009

• Estimation & Prediction Technology • Previous Articles     Next Articles

Research on SOC Estimation of Lithium Battery Based on GRA-MEA-BP Algorithm

XU Shouping1,2, HU Juan1,2, FU Shanshan1, CHEN Juan1   

  1. 1. China Electric Power Research Institute, Beijing 100192, China
    2. State Key Laboratory of Operation and Control of Renewable Energy & Storage Systems, Beijing 100192, China
  • Received:2022-12-22 Online:2023-09-30 Published:2023-11-23

Abstract:

In view of the nonlinear characteristics of lithium battery state of charge (SOC),the grey relational analysis,mind evolutionary algorithm,back propagation (GRA-MEA-BP) neural network algorithm is proposed,which is used for the SOC estimation of lithium battery at the current moment.Several main impact factors of SOC estimation is selected by GRA.The MEA-BP neural network is trained by taking the main influencing factors as inputs and the current SOC as output.Finally,taking the actual lithium battery as the object the proposed method is trained and verified by real data.The verification results indicate the accuracy of the proposed method.

Key words: lithium battery, state of charge, neural network, gray correlation analysis

CLC Number: