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http://dx.doi.org/10.6113/TKPE.2020.25.4.303

Continuous Time and Discrete Time State Equation Analysis about Electrical Equivalent Circuit Model for Lithium-Ion Battery  

Han, Seungyun (Electrical Engineering, Chungnam Nat'l University)
Park, Jinhyeong (Electrical Engineering, Chungnam Nat'l University)
Park, Seongyun (Electrical Engineering, Chungnam Nat'l University)
Kim, Seungwoo (Electrical Engineering, Chungnam Nat'l University)
Lee, Pyeong-Yeon (Electrical Engineering, Chungnam Nat'l University)
Kim, Jonghoon (Electrical Engineering, Chungnam Nat'l University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.25, no.4, 2020 , pp. 303-310 More about this Journal
Abstract
Estimating the accurate internal state of lithium ion batteries to increase their safety and efficiency is crucial. Various algorithms are used to estimate the internal state of a lithium ion battery, such as the extended Kalman filter and sliding mode observer. A state-space model is essential in using algorithms to estimate the internal state of a battery. Two principal methods are used to express the state-space model, namely, continuous time and discrete time. In this work, the extended Kalman filter is employed to estimate the internal state of a battery. Moreover, this work presents and analyzes the estimation performance of algorithms consisting of a continuous time state-space model and a discrete time state-space model through static and dynamic profiles.
Keywords
State of charge estimation; Extended kalman filter; Continuous-time state equation; Discrete-time state equation; Electrical equivalent circuit model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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