Changes for page 3.3 Control

Last modified by Admin on 2025/06/11 15:52

From 9.2 to 9.3 From 26.1 to 27.1

From version 9.3

edited by Admin
on 2025/02/28 13:40

Change comment: There is no comment for this version

To version 26.1

edited by Admin
on 2025/06/11 15:50

Change comment: Загрузить новое вложение 1749657005161-877.png

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@@ -62,12 +62,12 @@
  In “Always on” mode main contactor closes if all the following is true:
  * Other contactors are open;
--* There are no errors from the "Errors 1, 2 ..." bitfileds.
++* There are no errors from the "Errors ..." bitfiled.
  In “Always on” mode main contactor opens if all the following is true:
  * Other contactors are open;
--* There is an error from the the "Errors 1, 2 ..." bitfileds.
++* There is an error from the the "Errors ..." bitfiled.
  In “Automatic” mode, the main contactor closes by internal algorithms at the same time with other contactors.
@@ -129,7 +129,6 @@
  “Precharge error” generation conditions if any of the following is true:
  * the precharge current does not decrease during the "Precharge time" after "Number of precharging attempts";
--* voltages before and after contactors are not equal during the "Precharge time" after "Number of precharging attempts";
  * power dissipated on the precharge resistor is above the maximum value during the “Delay before setting the 'Precharge error' when checking power” time.
  (% class="box warningmessage" %)
@@ -147,11 +147,10 @@
 . Charging is allowed provided that all battery modules are balanced (Balanced).
 . Charging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the charging.
--The device controls two processes: joining battery modules and closing the main charging contactor.
++The device controls two processes: **joining battery modules **and **closing the main charging contactor.**
++The operation of the **joining battery modules** is described by the following steps:
--The operation of the joining battery modules is described by the following steps:
--
 . Battery modules are disabled. When the “Join to charge” request is received and the voltage and current unbalance errors (Voltage unbalance (CH), Current unbalance (CH), Charging current unbalance) are cleared, go to step 2.
 . Checking the voltage unbalance of battery modules (the duration of the check is set in the settings). If there is no imbalance or errors are ignored (“Always on” and “Partially balanced”), go to step 3, otherwise open all charging contactors, and go to step 1.
 . Closing the precharging contactors of the battery modules (optional). Go to step 4.
@@ -159,9 +159,9 @@
 . Checking intermodular balancing currents (the duration of the check is set in the settings). If there is no current unbalance (“Current unbalance (CH)”) or errors are ignored (“Always on”), go to step 6, otherwise open all charging contactors, and go to step 1.
 . The battery modules are joined. If the “Join to charge” request is cleared or the "Charging current unbalance" and "Critical error" errors occur, go to step 1.
--The operation of the main charging contactor is described in the following steps:
++The operation of **closing the main charging contactor** is described in the following steps:
--1. The main charging contactor is open. When the “Charge request” is received, the voltage and current unbalance errors (“Voltage unbalance (CH)”, “Current unbalance (CH)”, “Charging current unbalance”) are cleared, and the battery modules are joined, go to step 2.
++1. The main charging contactor is open. When the “Charge request” is received, there are no errors from the "Errors ..." bitfield, and the battery modules are joined, go to step 2.
 . Closing the main precharging contactor (optional). Go to step 3.
 . Closing the main charging contactor ("Charging" signal). Go to step 4.
 . The main charging contactor is closed. If the "Charge request" is cleared, the battery modules are disconnected, or the "Critical error" occurs, go to step 1.
@@ -172,7 +172,7 @@
  The battery charge management is configured in the "Control - Charge" section:
--[[image:1734356553573-447.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="146" width="600"]]
++[[image:1740750130950-113.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="219" width="800"]]
  In this section:
@@ -181,19 +181,20 @@
  ** Always on – charging is always allowed;
  ** Balanced – charging is allowed provided that all battery modules are balanced;
  ** Partially balanced – charging is allowed for most balanced battery modules;
--* Current corresponding to charging – a current level to set the "Charging current present" signal, A;
--* Current corresponding to no charging – a current level to clear the "Charging current present" signal, A;
--* Maximum current to rejoin modules – a maximum allowable current at which rejoining of battery modules is allowed, A;
--* Checking voltages time – a time of checking voltages of battery modules, ms;
--* Pre-balancing modules time – a time of pre-charging battery modules, ms;
--* Balancing modules time – a time of balancing battery modules, ms;
--* Control the precharging relay – a flag to control the main precharging contactor;
--* Precharging time – a time of precharging, ms;
--* Cancel charging without a delay;
++* Minimum number of modules allowed to join – a minimum number of battery modules that can be connected in parallel;
++* Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
++* Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
++* Checking voltages time – a time of checking voltages of battery modules before starting joining modules, millisecond;
++* Balancing modules time – a time of balancing battery modules after joining modules and before closing main charging contactor, millisecond;
++* Control the precharging contactor – a flag to control the main precharging contactor;
  * Canceling charging time – a delay before opening the main charging contactor, ms;
--* Limit charging current – a flag that allows to limit the charging current of a modular battery so that the current of each battery module does not exceed its maximum allowable charge current;
--* Slew rate – a rate of change of the charge current limit when the “Limit charging current” flag is set, А/s;
--* Disconnect modules not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared.
++* Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared.
++* Disconnect all modules if one is not ready to charge – a flag for disconnecting all modules if any of the modules have the “Ready to charge” signal cleared;
++* Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
++* Maximum charge current limit – a maximum allowed charging current of all battery, A;
++* Errors to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
++* Errors to open the charging contactor – errors that cause the main charging contactor "Charging" to open;
++* Switch of the charging contactor on errors without a delay – a flag that allows the main charging contactor “Charging” to be opened without delay if errors are detected.
  === Discharge ===
@@ -205,11 +205,10 @@
 . Discharging is allowed provided that all battery modules are balanced (Balanced).
 . Discharging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the discharging.
--The device controls two processes: joining battery modules and closing the main discharging contactor.
++The device controls two processes: **joining battery modules** and **closing the main discharging contactor**.
++The operation of the** joining battery modules** is described by the following steps:
--The operation of the joining battery modules is described by the following steps:
--
 . Battery modules are disabled. When the “Join to discharge” request is received and the voltage and current unbalance errors (Voltage unbalance (DCH), Current unbalance (DCH), Discharging current unbalance) are cleared, go to step 2.
 . Checking the voltage unbalance of battery modules (the duration of the check is set in the settings). If there is no imbalance or errors are ignored (“Always on” and “Partially balanced”), go to step 3, otherwise open all discharging contactors, and go to step 1.
 . Closing the precharging contactors of the battery modules (optional). Go to step 4.
@@ -217,9 +217,9 @@
 . Checking intermodular balancing currents (the duration of the check is set in the settings). If there is no current unbalance (“Current unbalance (DCH)”) or errors are ignored (“Always on”), go to step 6, otherwise open all discharging contactors, and go to step 1.
 . The battery modules are joined. If the “Join to discharge” request is cleared or "Discharging current unbalance" and "Critical error" errors occur, go to step 1.
--The operation of the main discharging contactor is described in the following steps:
++The operation of **closing the main discharging contactor **is described in the following steps:
--1. The main discharging contactor is open. When the “Discharge request” is received, the voltage and current unbalance errors (“Voltage unbalance (DCH)”, “Current unbalance (DCH)”, “Discharging current unbalance”) are cleared, and the battery modules are joined, go to step 2.
++1. The main discharging contactor is open. When the “Discharge request” is received, there are no errors from the "Errors ..." bitfield, and the battery modules are joined, go to step 2.
 . Closing the main precharging contactor (optional). Go to step 3.
 . Closing the main discharging contactor ("Discharging" signal). Go to step 4.
 . The main discharging contactor is closed. If the "Discharge request" is cleared, the battery modules are disconnected, or the "Critical error" occurs, go to step 1.
@@ -226,13 +226,11 @@
  The command to turn on the main discharging contactor (“Discharging”) can be issued both to the upper-level system via the CAN bus (external), and on the opto-relay of the device that serves to directly control the main discharging contactor.
--
  In addition to controlling the discharging contactors, the discharge controller calculates and transmits to the upper-level system the value of the maximum allowable current, which can be used to discharge the modular battery (“Discharge current limit”). The calculation of the discharging current of the entire battery is performed based on the number of battery modules operating per discharge and the values of the current limits transmitted by them.
--
  The battery discharge management is configured in the "Control - Discharge" section:
--[[image:1734356572308-630.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="139" width="600"]]
++[[image:1740750247231-926.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="218" width="800"]]
  In this section:
@@ -241,44 +241,103 @@
  ** Always on – discharging is always allowed;
  ** Balanced – discharging is allowed provided that all battery modules are balanced;
  ** Partially balanced – discharging is allowed for most balanced battery modules;
--* Current corresponding to discharging – a current level to set the "Discharging current present" signal, A;
--* Current corresponding to no discharging – a current level to clear the "Discharging current present" signal, A;
--* Maximum current to rejoin modules – a maximum allowable current at which rejoining of battery modules is allowed, A;
--* Checking voltages time – a time of checking voltages of battery modules, ms;
--* Pre-balancing modules time – a time of precharging battery modules, ms;
--* Balancing modules time – a time of balancing battery modules, ms;
--* Control the precharging relay – a flag to control the main precharging contactor;
--* Precharging time – a time of precharging, ms;
--* Cancel discharging without a delay;
--* Canceling discharging time – a delay before opening the main discharging contactor, ms;
--* Limit module current – a flag that allows to limit the discharging current of a modular battery so that the current of each battery module does not exceed its maximum allowable discharge current;
--* Slew rate – a rate of change of the discharge current limit when the “Limit module current” flag is set, А/s;
--* Disconnect modules not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared.
++* Minimum number of modules allowed to join – a minimum number of battery modules that can be connected in parallel;
++* Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
++* Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
++* Checking voltages time – a time of checking voltages of battery modules before starting joining modules, millisecond;
++* Balancing modules time – a time of balancing battery modules after joining modules and before closing main discharging contactor, millisecond;
++* Control the precharging contactor – a flag to control the main precharging contactor;
++* Canceling discharging time – a delay before opening the main discharging contactor, millisecond;
++* Disconnect modules that are not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared.
++* Disconnect all modules if one is not ready to discharge – a flag for disconnecting all modules if one of the modules have the “Ready to discharge” signal cleared;
++* Join modules on the “Discharge request” signal – a flag to enable automatic modules joining if “Discharge request” signal appears;
++* Maximum discharge current limit – a maximum allowed discharging current of all the battery, A;
++* Errors to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
++* Errors to open the discharging contactor – errors that cause the main discharging contactor "Discharging" to open,
++* Switch of the discharging contactor on errors without a delay – a flag that allows the main discharging contactor “Discharging” to be opened without delay if errors are detected.
  === Charge/Discharge ===
  The BMS Main X can control the charging/discharging contactor that is used to both charge and discharge the battery.
--The charge/discharge contactor (“Charging/Discharging” signal) receives a “Charging” signal (generated by the charge controller) if a “Charge request” signal is received from the upper-level system. In all other cases, the "Discharging" signal is output to the contactor (generated by the discharge controller).
++Charge/Discharge contactor has two algorithms of operation:
--The charge/discharge contactor control is configured in the “Control – Charge/Discharge” section:
++* Dependent - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals and behaves as Charging contactor if "Charging" signal is set, otherwise – as Discharging contactor;
++* Independent - Charge/Discharge contactor is based on its own controller.
--[[image:1734356572312-596.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="58" width="600"]]
++(% class="box warningmessage" %)
++(((
++**Warning!**
++Charge/Discharge algorithms on BMS Main X and on battery modules controllers must **be the same**!
++)))
++The charging/discharging controller supports the following modes:
++
++1. Charging/Discharging is always allowed (Always on) – the device ignores voltage and current unbalance of the battery modules and commands to close the discharging contactors of the battery modules and the main discharging contactor.
++1. Charging/Discharging is allowed if all battery modules are balanced (Balanced).
++1. Charging/Discharging is allowed for most balanced battery modules (Partially balanced). Unbalanced modules are disconnected from the common bus and do not participate in the discharging.
++
++The device controls two processes: **joining battery modules** and **closing the main charging/discharging contactor**.
++
++The operation of the **joining battery modules** depends on the signal received:
++
++* If "Join to charge" is received, joining procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
++* If "Join to discharge" is received, joining procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
++* If both signals received, "Join to charge" has a priority.
++
++The operation of **closing main charging/discharging contactor **depends on the signal received:
++
++* If "Charge request" is received, procedure is done as described in [[Charge>>doc:||anchor="HCharge"]] section;
++* If "Discharge request" is received, procedure is done as described in [[Discharge>>doc:||anchor="HDischarge"]] section;
++* If both signals received, "Charge request" has a priority.
++
++In addition, the charge/discharge controller calculates and transmits to the upper-level system the maximum allowable current value with which the modular battery can be charged ("Charge current limit") and discharged ("Discharge current limit"), as well as the maximum regeneration current value with which the modular battery can be charged during operation under load ("Regeneration current limit"). The calculation of the charge, discharge and regeneration currents of the entire battery is performed based on the number of battery modules operating for charge or discharge and the maximum charge and discharge current values transmitted by them:
++
++* "Charge current limit" and "Regeneration current limit" are calculated only if there is "Charge request";
++* "Discharge current limit" is calculated only if there is "Discharge request".
++
++The charge/discharge contactor control is configured in the “Control → Charge/Discharge” section:
++
++[[image:1740750424118-190.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="250" width="800"]]
++
  In this section:
--* Enable – a flag to enable the charge/discharge controller.
++* Enable – a flag to enable battery charge/discharge controller;
++* Mode:
++** Dependent - Charge/Discharge contactor depends on Charge and Discharge algorithms and their signals;
++** Independent - Charge/Discharge contactor is based on its own controller.
++* Algorithm:
++** Always on – discharging is always allowed;
++** Balanced – discharging is allowed provided that all battery modules are balanced;
++** Partially balanced – discharging is allowed for most balanced battery modules;
++* Minimum number of modules allowed to join – a minimum number of battery modules that can be connected in parallel;
++* Allowable battery current to rejoin modules – a battery current at which joining of battery modules is permitted, A;
++* Allowable voltage difference to rejoin modules – a difference between the voltage of the disconnected module and the battery voltage at which its joining is permitted, V;
++* Checking voltages time – a time of checking voltages of battery modules before starting joining modules, millisecond;
++* Balancing modules time – a time of balancing battery modules after joining modules and before closing main discharging contactor, millisecond;
++* Control the precharging contactor – a flag to control the main precharging contactor;
++* Canceling discharging time – a delay before opening the main discharging contactor, millisecond;
++* Disconnect modules that are not ready to charge – a flag for disconnecting modules that have the “Ready to charge” signal cleared;
++* Disconnect modules that are not ready to discharge – a flag for disconnecting modules that have the “Ready to discharge” signal cleared;
++* Join modules on the “Charge request” signal – a flag to enable automatic modules joining if “Charge request” signal appears;
++* Join modules on the “Discharge request” signal – a flag to enable automatic modules joining if “Discharge request” signal appears;
++* Maximum charge current limit – a maximum allowed charging current of all the battery, A;
++* Maximum discharge current limit – a maximum allowed discharging current of all the battery, A;
++* Errors to disconnect all battery modules – errors that cause all battery modules to be disconnected from the common bus;
++* Errors to open the charging/discharging contactor – errors that cause the main charging/discharging contactor "Discharging" to open,
++* Switch of the charging/discharging contactor on errors without a delay – a flag that allows the main charging/discharging contactor to be opened without delay if errors are detected.
  === Module balancing ===
  The BMS Main X device supports active balancing of battery modules both in the process of charging and in the process of discharging the battery.
--\\When the battery is charging, balancing is performed by disconnecting the most charged battery modules from the common bus. Before disconnecting the modules, the BMS Main X sends a request to the upper-level system (charger) to reduce the charge current to zero, and after the current becomes zero, disconnects the most charged battery modules.
++When the battery is charging, balancing is performed by disconnecting the most charged battery modules from the common bus. Before disconnecting the modules, the BMS Main X sends a request to the upper-level system (charger) to reduce the charge current to zero, and after the current becomes zero, disconnects the most charged battery modules.
++
  When the battery is discharging, balancing is performed by disconnecting the most discharged battery modules from the common bus. Battery modules are disconnected only if the battery discharge current has dropped to the threshold value set in the device settings.
  Module balancing is configured in the “Control – Module balancing” section:
--[[image:1734356572313-823.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="74" width="600"]]
++[[image:1740750509436-756.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="148" width="800"]]
  In this section:
@@ -285,6 +285,84 @@
  * Balance on charging – a flag to enable module balancing when the battery is charging;
  * Delta voltage – a voltage difference at which the most charged modules are switched off (those modules whose voltage exceeds the minimum voltage among the modules by the “Delta voltage” value are switched off), V;
  * Delta current – a current difference at which the most charged modules are switched off (those modules are switched off, the charge current of which is less than the maximum charge current among the modules by the “Delta current” value), A;
--* Waiting time – a time the battery modules are in the disconnected state (after this time, the modules previously disconnected during the balancing process are reconnected to the common bus), s;
--* Balance on discharging – a flag to enable module balancing when the battery is discharging;
++* Detection time – a time for module to be estimated as unbalanced, millisecond;
++* Waiting time – a time the battery modules are in the disconnected state (after this time, the modules previously disconnected during the balancing process are reconnected to the common bus), second;
++* Balance on discharging – a flag to enable module balancing when the battery is discharging (if flag is enabled operation logic and settings are equal to balancing on charging);
  * Required discharging current – a value of the discharge current at which the device switches off the most discharged battery modules, A.
++
++=== Heater ===
++
++To change the parameters of the heater control algorithm, select the "Control → Heater" section:
++
++[[image:1740750795356-352.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="161" width="800"]]
++
++In this section:
++
++* Enable – a flag to enable the heater control;
++* Charge: Minimum module temperature, °C;
++* Charge: Tolerant module temperature, °C;
++* Discharge: Minimum module, °C;
++* Discharge: Tolerant module temperature, °C;
++* Delay before starting the heater, millisecond;
++* Delay before stopping the heater, millisecond;
++* Errors to turn off the heater – errors that cause the heater to shut down.
++
++Conditions for signal generation:
++
++* the minimum temperature among all cells of the battery is less than the “Charge (Discharge): Minimum cell temperature” value during the “Delay before starting the heater” time.
++
++Conditions for clearing the signal:
++
++* the minimum temperature among all cells of the battery is greater than the “Charge (Discharge): Tolerant cell temperature” value during the “Delay before stopping the heater” time.
++
++=== Cooler ===
++
++To change the parameters of the cooler control algorithm, select the "Control → Cooler" section:
++
++[[image:1740750844486-213.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="158" width="800"]]
++
++In this section:
++
++* Enable – a flag to enable the cooler control;
++* Charge: Maximum module temperature, °C;
++* Charge: Tolerant module temperature, °C;
++* Discharge: Maximum module temperature, °C;
++* Discharge: Tolerant module temperature, °C;
++* Delay before starting the cooler, millisecond;
++* Delay before stopping the cooler, millisecond;
++* Errors 1 (2) to turn off the cooler – errors that cause the cooler to shut down.
++
++Conditions for signal generation:
++
++* the maximum temperature among all cells of the battery is greater than the “Charge (Discharge): Maximum cell temperature” value during the “Delay before starting the cooler” time.
++
++Conditions for clearing the signal:
++
++* the maximum temperature among all cells of the battery is less than the “Charge (Discharge): Tolerant cell temperature” value during the “Delay before stopping the cooler” time.
++
++=== Coolant pump ===
++
++To change the parameters of the coolant pump control algorithm, select the "Control → Coolant pump" section:
++
++[[image:1740750960467-987.png||data-xwiki-image-style-alignment="center" data-xwiki-image-style-border="true" height="154" width="800"]]
++
++In this section:
++
++* Enable – a flag to enable the coolant pump control;
++* Charge: Maximum cell temperature difference, °C;
++* Charge: Tolerant cell temperature difference, °C;
++* Discharge: Maximum cell temperature difference, °C;
++* Discharge: Tolerant cell temperature difference, °C;
++* Delay before starting the coolant pump, millisecond;
++* Delay before stopping the coolant pump, millisecond;
++* Errors to turn off the coolant pump – errors that cause the coolant pump to shut down.
++
++Conditions for signal generation:
++
++* the maximum temperature difference among all cells of the battery is greater than the “Charge (Discharge): Maximum cell temperature difference” value during the “Delay before starting the coolant pump” time.
++
++Conditions for clearing the signal:
++
++* the maximum temperature difference among all cells of the battery is less than the “Charge (Discharge): Tolerant cell temperature difference” value during the “Delay before stopping the coolant pump” time.
++
++

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