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Changes for page 3.3 Control

Last modified by Admin on 2026/04/30 15:56
From version 71.1
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To version 76.4
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Summary

Details

Page properties
Content
... ... @@ -12,27 +12,31 @@
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 -* 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.
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.
23 23  
24 -The values “Capacity” and “Resistance” are used to calculate the SOC of cells and the battery.
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.
25 25  
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.
34 +The values **“Capacity”** and **“Resistance”** are used to calculate the SOC of cells and the battery.
27 27  
28 -The “Reset parameters” will reset:
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.
29 29  
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.
38 +The **“Reset ”** command is used for starting-up and adjustment of the battery.
33 33  
34 -The “Reset parameters” command is used for starting-up and adjustment of the battery.
35 -
36 36  === SOC estimation ===
37 37  
38 38  The BMS Main 3 device calculates the state of charge of the battery (SOC) using two algorithms:
... ... @@ -377,7 +377,7 @@
377 377  
378 378  To change the parameters of charging process status, select the "Control → Charging status" section:
379 379  
380 -[[image:1760435790050-496.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="140" width="800"]]
384 +[[image:1771432488941-251.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="154" width="800"]]
381 381  
382 382  In this section:
383 383  
... ... @@ -385,6 +385,7 @@
385 385  * Current to clear the "Charging current present" – a current level to clear the "Charging current present" signal, A;
386 386  * Voltage to clear the “Ready to charge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is above this level, the “Ready to charge” (hence, the “Allow charging”) signal is cleared;
387 387  * Voltage to reset the “Ready to charge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cell voltages are below the tolerant level, the “Ready to charge” (hence, the “Allow charging”) signal is set;
392 +* Use actual voltage to generate the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal;
388 388  * Treat negative currents as zero currents for generating the "Ready to charge" signal – a flag to disable voltage correction for "Ready to charge" signal at discharging current;
389 389  * Delay before recharging – a time after which the previously opened the allow charging contactor closes again, minute; to disable the operation by timeout set "Delay before recharging" to 0;
390 390  * Check the 'Charge current limit' value to generate the 'Ready to charge' – a flag to enable check of "Charging current limit" to generate the "Ready to charge" signal;
... ... @@ -403,7 +403,7 @@
403 403  
404 404  To change the parameters of discharging process status, select the "Control → Discharging status" section:
405 405  
406 -[[image:1760435802140-274.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="129" width="800"]]
411 +[[image:1771431570393-551.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="155" width="800"]]
407 407  
408 408  In this section:
409 409  
... ... @@ -411,10 +411,12 @@
411 411  * Current to clear the "Discharging current present" – a current level to clear the "Discharging current present" signal, А;
412 412  * Voltage to clear the “Ready to discharge” – a threshold U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if the voltage of any cell is below this level, the “Ready to discharge” signal is cleared;
413 413  * Voltage to reset the “Ready to discharge” – a tolerant U,,ocv,, (corrected due to current and cell resistance) voltage level on the cell, V; if all cells voltages are above the tolerant level, the “Ready to discharge” signal is set;
419 +* Use actual voltage to generate the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal;
414 414  * Treat positive currents as zero currents for generating the "Ready to discharge" signal – a flag to disable voltage correction for "Ready to discharge" signal at charging current;
415 415  * Check the 'Discharge current limit' value to generate the 'Ready to discharge' – a flag to enable check of "Discharging current limit" to generate the "Ready to discharge" signal;
416 416  * Discharge current limit to clear the 'Ready to discharge' – a threshold discharging current limit value, A; if the limit is //above //this level, the “Ready to discharge” signal is cleared;
417 417  * Discharge current limit to set the 'Ready to discharge' – a tolerant discharging current limit value, A; if the limit is //below //this level, the “Ready to discharge” signal is set;
424 +* Clear the 'Ready to discharge' signal if the 'Low SOC' signal is set;
418 418  * Errors 1, 2 to clear the "Ready to discharge" – bitfields to choose the errors which will clear the "Ready to discharge" signal.
419 419  
420 420  === Precharge ===
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