HMI mainly includes the wiring diagram, system parameters, local control, condition monitoring, and other interfaces by clicking a Indicator icon to switch to the relevant screen.
8.1. Home Screen
The main screen is the main wiring diagram of the energy storage system, which shows the status of AC incoming switches, circuit breakers, positive and negative contactors of each branch, as well as the string voltage, current, power, SOC and other information of each branch.
8.2. Environmental Control System
The interface of the ECS mainly shows the status of the system environment and adjusts the environment.
The interface shows the operating status of the battery room fan and air conditioner, battery room temperature and humidity, maximum temperature and minimum temperature of the battery module, etc.
Environmental controls include manual and automatic control modes, which can be switched by the switching button.
Click the “Next” button,the interface can also set environmental control parameters, including fan automatic opening temperature, air conditioning cooling point, cooling return, heating point, heating return, etc.; By clicking on the corresponding parameters, they can be set within the allowable range.
Click the “Set” button,under manual control, the battery room fan, air conditioning switch can be controlled by HMI, EMS, and so on. In Auto mode, automatically adjust the temperature and humidity inside the container based on the set environmental parameters and collected environmental data.
8.3. System Control
The system control interface mainly includes Energy storage, contactors, BMS parameters and Equalize, etc. Click the corresponding button to enter the corresponding control interface.
Interface label | Function description |
Energy storage | Energy storage control interface |
Contactors | Switch state control of KM61~KM66 contactor in battery string |
BMS parameters | 1# ~ 6# battery string BMS battery management system protection limit setting |
Balance | Set the parameter values of active balanced, including Number of dual channels,Equilibrium times,Equalization mode, etc. |
Insulation monitor | Monitor the insulation fault information of each battery branch and clear the fault Settings |
RTU | Set the total charging/discharging shutdown voltage of the system |
8.3.1. Energy storage
There are two control modes for Energy storage, one is General and the other is Separate. By default, the system is General.
In General mode, the user only needs to set the total system power. If the input power is positive, the system will work in discharge mode. If the input power is negative, the system will work in charging mode.
Position | Designation |
PCS control switch | PCS mode is divided into "General" mode and "Separate" mode. General mode: In the current mode, only the total power of the system needs to be set, and the power settings of #1PCS and #2PCS can be automatically completed. Separate mode: In the current mode, the power of 1#PCS and 2#PCS shall be set separately. |
Control mode | Set the system power control mode. When it is set to "Constant power", it is also required to input the system power in "Active power"; When set to "Stop", the system shuts down. |
Active power | Set value of system Active power. A positive number indicates system discharge and a negative number indicates system charging. |
Reactive power | Set the power value of Reactive power. A positive number indicates inductive reactive power and a negative one, capacitive reactive power. |
In Separate mode,users need to set the control mode and power of subsystems 1 # to 6 # separately. When the input power is positive, the system will operate in discharge mode; When the input power is negative, the system will operate in charging mode.
8.3.1.1. Time Control
Click the "Time Control" button in the lower right corner to enter the time control setting interface.Then set the BESS operation time period and Power in this page according to the application, and enable each time period and the total time period, the BESS will be operated according to this time period automatically.
NOTE
The system will automatically run according to the time period and setting value.
Symbol | Explain |
① | "Enable" starts the automatic operation function of the system, and "Unable" disables the automatic operation function of the system. In the "Unable" mode, the ② and ③ settings are invalid |
② | Effective time of automatic system operation(Year/Mouth/Day). |
③ | Enable the current time period. When it is in "Disable", the settings in ④ and ⑤ will be invalid. When it is in "Enable", the settings in ④ and ⑤ will be effective, and the system will automatically operate according to relevant parameters |
④ | Begin time and end time of system automatic operation(Hour/Min). |
⑤ | Operating mode and power value in the current period. When a positive number is entered, the system will charge, and the charging power is the set value; When a negative number is entered, the system will discharge, and the discharge power is the set value |
8.3.2. Contactor control
The contactor control interface displays the position status of battery string DC contactor (KM+, KM-). The contactors of the corresponding string can be closed / disconnected by controlling the "on, off" of the right contactor.
8.3.3. BMS parameters
The BMS parameter interface mainly displays the protection parameters of the battery management system of 6 battery strings. Click "Next" or "Last" to switch to the BMS parameter interface of different battery strings.
The BMS parameters of the system are protected. Before changing the parameters, you need to log in (see 8.5.1 Login and logout). The lower left corner of the screen is the BMS parameter protection option. The parameter protection function can be turned on and off by switching options. "Setting Parameters" is set to "Unable", and relevant parameters cannot be modified.
When "Setting Parameters" is set to "Enable", it is allowed to modify relevant parameters, and the effective time is 10 minutes. After 10 minutes, it will automatically exit and start the parameter protection function.
As shown in the following figure, when clicking on the "Enable" button, a confirmation window pops up, and "Sure" is clicked to set the parameters.
As shown in the following figure, when the parameter setting mode switches to "Enable," click on the target parameter, pop up the numeric keypad, and modify the parameters by entering the numbers correctly. The keyboard shows the range of settings for the parameters, which are valid.
8.3.4. Balance
The balance setting interface allows the modification of the channel number, current size, balance time and startup voltage difference of active balance settings. The user can also select whether to perform automatic balance(Automatic) and prohibit balance(Prohibit) in the balance control mode. "Prohibit", "Force" and "Manual" are debugging modes. It is not recommended to modify these two modes during normal operation of the system.
Before modifying the Balance parameters, the user first needs to adjust the "Jurisdiction" to the "Enable" state. After modifying the parameters, the user needs to click the "Setting" button to take effect.
8.3.5. Insulation monitor
On the insulation monitoring, battery insulation fault indicators in 1# to 6# and the clear button are displayed. After an insulation fault occurs, you need to manually click the "Set" button to clear the fault and recover the system.Click "Sure" on the confirmation operation interface.
8.3.6. RTU
The RTU interface displays the charging stop voltage and discharge stop voltage. The corresponding values can be changed to keep the system operating in a safe range.
Label | Explain | |
RTU setting | Charging limit control | Enable Charging limit control, it can limit charging current. |
Discharging limit control | Enable discharging limit control, it can limit charging current. | |
Charging stop voltage | When the charging voltage reaches the set value, the system stops. | |
Discharging stop voltage | When the discharging voltage reaches the set value, the system stops. | |
RTU operate mode | When the maintenance door is opened, the system stop. Default in Running mode. When RTU operate mode is “Debug mode” , the system will not stop when the maintenance door is open When RTU operate mode is “Running mode”, the system will stop when the maintenance door is open | |
Heartbeat control | Heartbeat control | This is used during internal operation and maintenance debugging and users are prohibited from modifying it. |
8.4. Status Monitoring
The status monitoring interface displays the status of the energy storage system, the status of 1#~6#PCS, BMS, EMU, Current events, History events, Online events, Balance status, etc. By clicking the corresponding status button, you can view the corresponding interface.
8.4.1. Energy Storage status
System status includes system ready status, PCS alarm, BMS alarm, battery system full signal, battery system empty signal, System charge / discharge signal, communication status, etc.
8.4.2. BMS status
The BMS status interface mainly displays the temperature, voltage, communication and SOC status of each battery string.
Position | Explain |
① | Battery string code |
② | Maximum voltage and code of cells in the battery string |
③ | Minimum voltage and code of cells in the battery string |
④ | Communication status of BMS and BMU in the battery string |
⑤ | Maximum temperature and code of battery module in battery string |
⑥ | Minimum temperature and code of battery module in battery string |
⑦ | Maximum temperature and code of battery pack in battery string |
⑧ | Battery string SOC |
8.4.3. EMU status
The EMU status interface displays the communication and power of each PCS module, the total number of PCS, the number of PCS online, the number of PCS connected to the power grid, the total active power output, the total reactive power output, the maximum chargeable power and the maximum discharge power of the system.
8.4.4. Balance
The balance interface displays the balance quantity of the current string and pack and the current value of the balance. When the voltage of the first cell is balanced, the corresponding bit in the status column is displayed as 1, 0 indicates that the balance is not enabled.
8.4.5. PCS status
PCS status includes telemetry and telesignaling.
Telemetry information mainly includes wired voltage, current, ambient temperature and some protection settings inside PCS , such as overvoltage and overcurrent settings, scheduling mode, charge and discharge power distribution value, etc;
Telesignaling signal point covers all alarms and faults of PCS , such as general alarm, general fault, AC overvoltage, undervoltage, internal module fault, abnormal power supply, over temperature and other states.
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8.4.6. Current event
Current events are divided into PCS current events and BESS current events. Click the button corresponding to current events in the status monitoring interface to enter the current event interface of the equipment.
The current status interface records various events during the operation of the system after startup. The events are sorted by time, and the event occurrence date, occurrence time, confirmation time, recovery time and event description are recorded. Click the "Confirm" button to confirm all the current unconfirmed events, and click "Clear" to clear the event information.
Non reset events are displayed in light red font, recovered events are displayed in blue font, and manually confirmed events are displayed in light green background.
In the corresponding event interface, click the "History" or "Online" buttons in the lower right corner to enter other event interfaces of the equipment.
8.4.7. History event
History events are divided into PCS history events and BESS history events. Click the button corresponding to history events in the status monitoring interface to enter the history event interface of the equipment. The interface records various events in the system operation process. The events are sorted by time, and the date, time and description of the events are recorded. You can click the "Clear" button to clear the event record.
In the corresponding event interface, click the "Current" or "Online" buttons in the lower right corner to enter other event interfaces of the equipment.
8.4.8. Online event
In the system status interface, you can click the "status" button of Online event to enter the system self inspection interface. The interface of the current status system alarm information summary will be displayed; after the alarm is reset, the information will disappear.
Click the "History" or "Current" buttons in the lower right corner to enter the other event interface of this BESS.
8.5. System settings
The system setting interface is mainly used for user login / logout, HMI setting, time setting, RTU version number and other information.
8.5.1. Login and logout
The interface provides user access to login/logout, including user name, user password, and logout button.
User name: The default user name is "Admin," and the user does not need to enter it.
User password: The default password is "111111", enter your password and click the Enter button, which the user must enter manually when they log on.
Sign-in status: After the user enters the password to log in, there is a rolling message to read: "Welcome
Administrators."
By clicking the "Log out" button, you can exit login; all parameter settings, controls, and other functions are no longer available.
8.5.2. HMI settings
The interface is set up for HMI, including VNC functions on and off, restart, screen brightness setting, etc.
8.5.3. System timing
This system uses HMI to synchronize the time. The user can set the HMI time, including year, month, day, hour, minute, second and time zone, and then click "Time setting" to adjust the time of each device in the system.