Changes for page 3.5 Battery control

Last modified by Admin on 2025/03/10 12:50

From 17.1 to 17.2

From version 17.2

edited by Admin
on 2025/02/19 09:51

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To version 25.1

edited by Admin
on 2025/03/10 12:50

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@@ -4,7 +4,7 @@
  (% data-numbered-headings-start="5" style="--numbered-headings-start: 4;font-size: 0px;color: rgba(0, 0, 0, 0.0);margin-bottom: 0px; margin-top: 0px;" %)
  == Battery control ==
--=== Charge control ===
++=== Charging control ===
  There are two relays that serve charging the battery: a charging relay and an allow charging relay. With the help of the allow charging relay, the BMS commands the charger to start or stop charging.
@@ -46,7 +46,7 @@
  To change the parameters of the battery charge control algorithm, select the menu "Cells → Charging control":
--[[image:1732208589628-419.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="725" width="471"]]
++[[image:1739961593607-309.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="639" width="425"]]
  In this section:
@@ -55,6 +55,7 @@
  ** Always on – charging is always allowed;
  ** On charger connected – charging is allowed when there is a signal “Charger connected”;
  ** On charge request – charging is allowed when there is a signal “Charge request”;
++* Allow charging only when the "Ready to charge" signal is set;
  * Current indicating charging – a current level to generate the "Charging current present" signal, A;
  * Current indicating no charging – a current level to clear the "Charging current present" signal, A;
  * Delay before starting charging – a time delay T,,on,, before closing the charging relay and the allow charging relay, second;
@@ -73,7 +73,7 @@
 ) the "Delay before recharging" time has passed since the opening of the allow charging relay.
  )))
--=== Discharge control ===
++=== Discharging control ===
  The board has a discharging relay to connect battery to the load.
@@ -110,13 +110,13 @@
  **Note:** In case of errors in the system operation, the opening of the discharging relay is performed either immediately or with a delay T,,off,, (depends on the settings described below).
  )))
--The board supports controlling the precharging relay. The duration of switching on the precharging relay before closing the discharging (load) relay is adjusted.
++The board supports controlling the precharging relay. The duration of switching on the precharging relay and precharge current threshold before closing the discharging (load) relay are adjustable.
  When the power down request occurs, the discharging relay opens after delay T,,off,,. Reclosing the discharging relay is performed if the power down request is removed.
  To change the parameters of the battery discharge control algorithm, select the menu "Cells → Discharging control":
--[[image:1732208781932-849.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="644" width="415"]]
++[[image:1739961703149-845.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="748" width="440"]]
  In this section:
@@ -125,6 +125,7 @@
  ** Always on – load is always connected;
  ** On charger disconnected – load is connected when there is no signal “Charger connected”;
  ** On discharge request – load is connected when there is a signal “Discharge request”;
++* Allow discharging only when the "Ready to discharge" signal is set;
  * Current indicating discharging – a current level to generate the "Discharging current present" signal, А;
  * Current indicating no discharging – a current level to clear the "Discharging current present" signal, А;
  * Delay before starting discharging – a time delay T,,on,, before closing the discharging relay, second;
@@ -168,7 +168,7 @@
  === Charging/Discharging control ===
-- BMS Main 2.x allows to control charging/discharging contactor that combines algorithms of charging and discharging contactor. It behaves as charging contactor when «Charge request» or «Charger connected» are set, otherwise – as discharging contactor.
++ BMS Main 2.x allows to control charging/discharging contactor that combines algorithms of charging and discharging contactor. It behaves as [[charging>>doc:||anchor="HChargingcontrol"]] contactor when «Charge request» or «Charger connected» are set, otherwise – as [[discharging>>doc:||anchor="HDischargingcontrol"]] contactor.
  To change the parameters of the charging/discharging algorithm, select the menu "Cells → Charging/Discharging control":
@@ -182,30 +182,33 @@
  The BMS Main 2.x has a relay to control the main contactor. The main contactor is usually placed in the common (minus) battery line for opening the charge and discharge circuits in a case of sealing of the charging or discharging contactor.
--The main contactor closes if there are no errors from the list below:
++The Main contactor algorithm supports the following modes:
--* Overcurrent;
--* Undervoltage;
--* Overvoltage;
--* High temperature (charging);
--* High temperature (discharging);
--* Unallowable charging;
--* Critical error.
++* Always on;
++* Automatic;
++* On demand.
--The main contactor opens if the charging and discharging relays are opened and any of the following conditions is met:
++In “Always on” mode main contactor closes if all the following is true:
--* charging or discharging current is detected during a set time;
--* voltage of any cell is lower than the minimum cell voltage configured in the section "Protections → Undervoltage protection" during a set time;
--* voltage of any cell is greater than the maximum cell voltage configured in the section "Protections → Overvoltage protection" during a set time;
--* temperature of any cell is greater than the maximum cell temperature configured in the section "Protections → High temperature protection" during a set time;
--* Critical error stays on during a set time.
++* Other contactors are open;
++* There are no errors from the list below:
++** Overcurrent;
++** Undervoltage;
++** Overvoltage;
++** High temperature (charging);
++** High temperature (discharging);
++** Unallowable charging;
++** Critical error.
--The Main contactor algorithm supports the following modes:
++In “Always on” mode main contactor opens if all the following is true:
--*
--* Automatic;
--* On demand.
++* Other contactors are open;
++* There is an error from the the list above.
++In “Automatic” mode, the main contactor closes and opens by internal algorithms at the same time with other contactors.
++
++In “On demand” mode, the main contactor closes by external the “Close Main contactor” request.
++
  To change the parameters of the main contactor, select the menu "Cells → Main contactor":
  [[image:1739958553206-813.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="179" width="410"]]
@@ -213,6 +213,10 @@
  In this section:
  * Enable – a flag to enable the main contactor control;
++* Algorithm – main contactor control algorithm:
++** Always on – contactor is always closed;
++** Automatic – contactor closes by internal charge and discharge algorithms;
++** On demand – contactor is closed by an external request;
  * Delay before opening the contactor – a time which is used to detect conditions for opening the contactor, second;
  * Keep the contactor open until the device is reset – a flag for keeping the main contactor opened until the system be reset.

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