考虑驾驶工况及老化程度的锂电池荷电状态估算

乌江, 张燕, 刘泽龙, 程刚, 雷冬, 焦朝勇

State of Charge Estimation of Lithium-Ion Battery Considering Operating Conditions and Aging Degree

WU Jiang, ZHANG Yan, LIU Zelong, CHENG Gang, LEI Dong, JIAO Chaoyong

表5 典型工况下ADEKF算法估算老化电池ξSOC的误差对比

Tab.5 Error comparison of ADEKF algorithm for estimation of ξSOC of aged battery under typical operating conditions

SOH 恒流 DST BBDST δMAE/% δME/% 收敛时间/s δMAE/% δME/% 收敛时间/s δMAE/% δME/% 收敛时间/s 100% 0.46 1.96 130 0.41 2.64 56 0.38 2.33 158 94.9% 0.47 2.41 490 0.63 4.55 56 0.47 6.34 54 90.8% 0.56 2.08 530 1.20 1.84 76 1.02 3.89 55 84.6% 0.62 1.97 445 2.45 2.85 76 1.58 2.06 110 79.2% 0.66 2.99 510 1.89 4.28 56 2.20 2.62 111 EKF最小误差 1.94 2.50 2.74 AEKF最小误差 1.17 2.06 2.29