Changes for page 3.3 Control
Last modified by Admin on 2026/04/30 15:56
Summary
-
Page properties (1 modified, 0 added, 0 removed)
Details
- Page properties
-
- Content
-
... ... @@ -12,31 +12,27 @@ 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 connectedchains are groupedto blocks. A bunch of serial connectedblocksaregrouped intostring. By configuring thecorrespondingsettings it is possibletocreate a complex stringconfiguration. Currentthrougheachchainwill be estimated as a fraction ofoverallcurrentaccordinglyto thenumberof 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”**areusedto calculate theSOCofcells andthe 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 usedtodeterminethestate of the battery. If the battery is in a state of relaxation,the systemrecalculatesthevoltage 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: