Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:56

From version 76.4
edited by Admin
on 2026/03/31 12:36
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To version 76.1
edited by Admin
on 2026/02/18 16:36
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Summary

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12 12  
13 13  In this section:
14 14  
15 -* **Cell capacity** – nominal capacity of cells, Ah;
16 -* **Cell resistance** – nominal (maximum) internal resistance of the cells, Ohm;
17 -* **Connection of cells:**
18 -** **Serial **– all cells are connected in series in a single string.
19 -** **Parallel-Serial **– cells are grouped in parallel and serial items;
20 -* **Parallel-Serial: Number of Logic devices in a chain**;
21 -* **Parallel-Serial: Number of parallel chains in a block**;
22 -* **Parallel-Serial: Number of serial blocks in a string**;
23 -* **Relax time (after charging)** – a relaxation time after charging, second;
24 -* **Relax time (atfer discharging)** – a relaxation time after discharging, second;
25 -* **Reset SOC** – a command to reset cells state of charge. New cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section;
26 -* **Reset resistance** – a command to reset cells resistance to “Cell resistance” value;
27 -* **Reset capacity** – a command to reset cells capacity to “Cell capacity” value;
28 -* **Method of calculating the battery voltage***:
29 -** **Summation of cell voltages** – the overall voltage is calculated as on sum of all cells in the battery;
30 -** **Using voltage before contactors** – the overall voltage is estimated as voltage before contactors measured by BMS.
15 +* Cell capacity – nominal capacity of cells, Ah;
16 +* Cell resistance – nominal (maximum) internal resistance of the cells, Ohm;
17 +* Relax time (after charging) – a relaxation time after charging, second;
18 +* Relax time (atfer discharging) – a relaxation time after discharging, second;
19 +* Reset parameters – a command to reset cells state of charge, capacity, and resistance;
20 +* Method of calculating the battery voltage:
21 +** Summation of cell voltages – the overall voltage is calculated as on sum of all cells in the battery;
22 +** Using voltage before contactors – the overall voltage is estimated as voltage before contactors measured by BMS.
31 31  
32 -The **"Parallel-Serial"** connection works as follows: a bunch of serial connected Logics are grouped into chains. A bunch of parallel connected chains are grouped to blocks. A bunch of serial connected blocks are grouped into string. By configuring the corresponding settings it is possible to create a complex string configuration. Current through each chain will be estimated as a fraction of overall current accordingly to the number of chains in a block.
24 +The values “Capacity” and “Resistance are used to calculate the SOC of cells and the battery.
33 33  
34 -The values **Capacity** and **“Resistance”** are used to calculate the SOC of cells and the battery.
26 +The values of Relax time” are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
35 35  
36 -The values of **“Relax time”** are used to determine the state of the battery. If the battery is in a state of relaxation, the system recalculates the voltage on the cells to the state of charge of the battery.
28 +The “Reset parameters will reset:
37 37  
38 -The **“Reset ”** command is used for starting-up and adjustment of the battery.
30 +* state of charge (new cell SOC values will be calculated based on cell voltage and “Uocv (open-circuit voltage) table”: in the “Control → SOC estimation” section);
31 +* cell resistance to “Cell resistance” value;
32 +* battery capacity to “Cell capacity” value.
39 39  
34 +The “Reset parameters” command is used for starting-up and adjustment of the battery.
35 +
40 40  === SOC estimation ===
41 41  
42 42  The BMS Main 3 device calculates the state of charge of the battery (SOC) using two algorithms: