| Title |
A Study on the Application of Inductor Shunt to Diagnose Secondary Cells |
| Authors |
강대수(Dae-Soo Kang) ; 유정봉(Jeong-Bong You) |
| DOI |
https://doi.org/10.5573/ieie.2021.58.9.53 |
| Keywords |
Secondary cell; Inductor shunt; Phase response; Randles model parameters |
| Abstract |
We simulate phase response for each of the Randles model parameters by connecting shunt inductors to a secondary cell. The shunt inductor and measurement frequency were selected according to the Bode plot phase response characteristics of the secondary cell according to the change of the shunt inductor. The phase response at the cut-off frequency, measured in the form of a high-pass filter, relied on the internal resistance of the secondary cell and showed results independent of cell capacity or parallel resistance. In a phase measurement experiment on lead-acid cells, the phase response for lead-acid cells with internal resistance of 36.280() and 47.750(), respectively, resulted in a phase difference of 3.91° being measured. |