@semo Jaké jsi zvolil hodnoty R1, R2 a C pro vybíjení? Model akumulátoru dle (tebou uvedeného odkazu)
Uvažuješ s nějakým Rm (spojky mezi články, a pojů k vývodům / the resistance of the metallic path
through the cell including the terminals, electrodes and inter-connections)?
NPTEL – Electrical – Introduction to Hybrid and Electric Vehicles
Joint initiative of IITs and IISc – Funded by MHRD Page 1 of 14
Module 9: Energy Storage
Lecture 32: Mathematical Modeling for Lead acid battery
http://14.139.172.204/nptel/CSE/Web/108103009/pdf/lec32.pdfPage 6 of 14, Fig. 1 Example of a more refined equivalent circuit model of a battery.
This models some of the dynamic behavior of a battery
- Fíg in paragraph: Internal Impedance - Battery Equivalent Circuit -
https://www.mpoweruk.com/performance.htm(R1) Ra is the resistance of the electrochemical path including the electrolyte and the separator.
(C) Cb is the capacitance of the parallel plates which form the electrodes of the cell.
(R2) Ri is the non-linear contact resistance between the plate or electrode and the electrolyte.
ZÁVISLOST NA NABITÍ/VYBITÍ
Figure 6: Typical internal resistance readings of a lead acid wheelchair battery. The battery was discharged
from full charge to 10.50V. The readings were taken at open circuit voltage (OCV).
Cadex battery laboratories.
ZÁVISLOST NA TEPLOTĚ - Battery Performance Characteristics - mpoweruk
The internal resistance of a galvanic cell is temperature dependent, decreasing as the temperature
rises due to the increase in electron mobility. The graph below is a typical example.
https://www.mpoweruk.com/images/resistance_temp.gif