Integrated System Identification and State-of-Charge Estimation of Battery Systems

  title={Integrated System Identification and State-of-Charge Estimation of Battery Systems},
  author={Lezhang Liu and Le Yi Wang and Ziqiang Chen and Caisheng Wang and Feng Lin and Hongbin Wang},
  journal={IEEE Transactions on Energy Conversion},
Accurate estimation of the state of charge in battery systems is of essential importance for battery system management. Due to nonlinearity, high sensitivity of the inverse mapping from external measurements, and measurement errors, SOC estimation has remained a challenging task. This is further compounded by the fact that battery characteristic model parameters change with time and operating conditions. This paper introduces an adaptive nonlinear observer design that compensates nonlinearity… CONTINUE READING
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