sirea AEH 20000 User manual

AEH 20000
User guide
Document name
SIR-AEH20000-EN-NT-REV3
Publication date
2021-10-06

AEH 20000 - Hybrid power cabinet
1. About this manual
This chapter describes the contents of this manual, target reader, and safety symbols, can help users
to have a better understanding of the manual.
1. About this manual 2
1.1 Target readers 3
1.2 How to use this Manual 3
1.3 Symbols explanation 3
2. Safety instructions 5
2.1 Installation 5
2.2 Operator 5
2.3 Inspection and storage 5
2.4 Transportation 6
2.5 Repair and maintenance 6
2.6 lnverter EMC and noise level 6
2.7 Important notes 7
3. Product description 8
3.1 Energy storage system 8
3.2 Circuit diagram of the inverter 8
3.3 The layout of the main components 9
3.4 Operation mode 9
3.5 Battery setting 10
3.6 Protection 10
3.7 Storage 10
3.8 Dimensions 11
4. Product description 12
4.1 Installation condition requirements 12
4.2 Tools and spare parts required for installation is as follows: 13
4.3 Transportation of packaged whole machine 14
4.4 Electrical installation 14
4.4.1 Input and output requirements 14
4.4.2 DC batterie side wiring 15
4.4.3 AC side wiring 15
4.4.4 Earthing 16
4.4.5 DC PV modules side wiring 16
4.5 Communication 16
5. GUI (Graphic User Interface) instruction 17
5.1 LCD display screen introduction 17
5.2 History 18
5.3 Alarms 20
6. Routine maintenance 23
7. Specification 24
Contacts 25
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AEH 20000 - Hybrid power cabinet
1.1 Target readers
1. Only professional electricians or professionally qualified personnel can transport or install this
product.
2. The operator should be fully familiar with the structure and working principle of the entire
Energy Storage system;
3. The operator should be fully familiar with this manual;
4. The operator should be fully familiar with the local standards of the project.
1.2 How to use this Manual
Read this manual before installation of the AEH cabinet. Store this manual where accessible at all
times.
The contents of this manual will be periodically updated or revised if necessary. However,
discrepancies cannot be excluded.
1.3 Symbols explanation
ln order to ensure the personal and property safety of the user during installation, or optimally
efficient use of this product, symbols are used to highlight the information. The following symbols
may be used in this manual, please read carefully, in order to make better use of this manual.
CAUTION
CAUTION
Indicates there is potential risk, if not avoided, could result in equipment
malfunction and property damage.
DANGER
Caution, risk of danger
Indicates a hazard with a high level of risk which, if not avoided, will result in death
or serious injury.
WARNING
Caution, risk of electric shock
When battery bank or PV modules connecting point are exposed, there will be DC
voltage in the equipment DC side; and when the output breaker is on, there is a
potential risk of electric shock.
WARNING
Caution, risk of fire hazard
Suitable for mounting on concrete or other non-combustible surfaces only.
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AEH 20000 - Hybrid power cabinet
PE TERMINAL
Caution, protective conductor terminal
The AEH has to be firmly grounded to ensure the safety of personnel.
WARNING
Caution, risk of electric shock, energy storage timed discharge.
Electrical shock danger exists in the capacitor; the caver shall be: moved at least 5
minutes later after all powers are disconnected.
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AEH 20000 - Hybrid power cabinet
2. Safety instructions
lnverter installation and service personnel must be trained and familiar with the general safety
requirement when working on electrical equipment. Installation and service personnel should also be
familiar with the local laws and regulations and safety requirements.
●Read this manual carefully before operation. The equipment will not be under warranty if
failing to operate according to this manual.
●Operation on the AEH must be for qualified electrical technicians only.
●When AEH is operating, don't touch any electrical parts except for the touch screen.
●All electrical operations must comply with local electrical operation standards.
●Warranty service for the AEH does not contain module maintenance.
●Permission from the local utility company is required before installing the Energy Storage
system and only professional personnel are qualified for the operation.
2.1 Installation
Proper installation requires following all the instructions in the user manual involving transportation,
mounting, wiring and commissioning. SIREA does not cover warranty for the AEH damage due to
failing to use it properly.
The protection level of the AEH is IP54, which is designed for indoor installation. Please refer to
chapter 4 for installation instruction.
The installation location must be dry, including no expected condensation. The AEH is only for use in
a closed electrical operating area.
WARNING
Caution, risk of fire hazard
Suitable for mounting on concrete or other non-combustible surfaces only.
2.2 Operator
lnverter installation and service personnel must be trained and familiar with the general safety
requirement when working on electrical equipment. Installation and service personnel should also be
familiar with the local laws and regulations and safety requirements
2.3 Inspection and storage
The AEH should be carefully checked before signing the document from the transportation company.
Check the received items against the delivery note, and if there is any defect or damage,
immediately notify the transportation company. If necessary, you can seek help from SIREA Customer
Service department.
CAUTION
CAUTION
AEH can only be stored when it is stopped and ail the : doors are closed in a dry
room to protect the internal circuits against dust and moisture.
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AEH 20000 - Hybrid power cabinet
2.4 Transportation
Transportation should follow the transportation methods described in the user manual. The AEH's
weight and center of gravity should be taken into account during transportation. The center of gravity
is marked on the box.
DANGER
Caution, risk of danger
During transportation, lifting equipment and personnel must be qualified. The AEH
should be placed vertically and the inclination cannot be more than 1 O degrees. lt
is not allowed to place the AEH upside down or transport in a horizontal position.
Incorrect lifting and transportation can lead to serious injury, property loss and
damage to the AEH.
2.5 Repair and maintenance
Repair and maintenance can only be carried out after disconnecting the DC and AC for at least 5
minutes.
Only professional technical personnel are qualified for the operation.
Disconnecting switches
Disconnect the DC switch and AC switch, and make sure the AEH will not be connected accidentally.
Ensure the AEH is totally disconnected with no voltage by testing with a multimeter. Although the DC
and AC switch has been disconnected, there is still voltage in some components, for example
capacitors. Hence, the repair or maintenance operation can only proceed at least 5 minutes after the
disconnection.
Maintenance and modification
Only personnel with SIREA authorization are qualified for the maintenance and modification. And to
ensure persona! safety, use original accessories provided by the manufacturer only. Otherwise,
electrical safety and EMC might not comply with the required standard.
Function and safety parameters
Don't change the parameters of the AEH without authorization from the local utility and SIREA.
Otherwise, it might lead to injury or equipment damage and the warranty of the AEH will be voided.
WARNING
Caution, risk of electric shock, energy storage timed discharge.
Electrical shock danger exists in the capacitor; the caver shall be: moved at least 5
minutes later after all powers are disconnected.
2.6 lnverter EMC and noise level
Electromagnetic compatibility (EMC) is the requirement for electrical equipment that it can operate
normally in the electromagnetic environment and does not cause unacceptable environmental impact
itself.
●Anti-interference property from internal components.
●Anti-interference property from outside.
●Electromagnetic emission impact on the environment
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AEH 20000 - Hybrid power cabinet
lnverter may generate some noise and electromagnetic radiation during operation. According to EMC
emission and noise level, AEH should be used in industrial environments. Hence, ail personnel should
not stay long near the AEH.
2.7 Important notes
Item 1: Static electricity can cause damage to the AEH
Electrostatic discharge may cause unrecoverable damage to AEH internal components
When operating the AEH, the operator must comply with anti-static protection norms!
Item 2: Restriction
The AEH cannot be directly used to connect the life support equipment and medical equipment.
Item 3: Precautions
Make sure installation tools or other unnecessary items are not left inside the AEH before starting up.
Item 4: Maintenance notice
Maintenance can only be carried out after the AEH is totally discharged.
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AEH 20000 - Hybrid power cabinet
3. Product description
3.1 Energy storage system
AEH cabinet are designed for energy storage and photovoltaic system, it converts DC current
generated by PV modules into DC for battery bank and AC current and feed it into the load/grid. DC for
battery can also feed into the load/grid
Structure of a typical energy storage system is shown as below :
3.2 Circuit diagram of the inverter
AEH inverter converts DC current generated by PV modules into DC current on bus, then into DC
current to charge battery or AC current, it can also convert DC current from battery to AC current. Then
the AC current is filtered into sine wave electricity and fed into the grid through a medium-voltage
isolating transformer. The circuit diagram is as below:
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AEH 20000 - Hybrid power cabinet
3.3 The layout of the main components
No.
Name
Description
1
Fan
Fan for heat extraction
2
Cabinet
IP54 IK10 cabinet
3
Touch screen
Operation information
display and control
command
4
Lock
Lock to open door with
double bar key
5
Ventilation
grid
Grid for fan aspiration
3.4 Operation mode
There are several operation modes of the AEH.
On-grid mode
1. AEH connected to PV modules on DC side and grid on the AC side;
2. AEH connected to AC transducer placed on AC circuit where auto-consumption is needed;
3. Batteries started.
4. Every switches and breakers on :
a. Transducer measure energy flux and take energy from PV and battery if available.
b. If PV greater than consumption, PV supply consumption and charge batteries
c. If PV is lower than consumption, PV and batteries supply consumption, if power
consumption is higher than PV and batteries capacities, grid supply also.
d. When the battery level is low, they go to standby mode, PV and grid supply
consumption..
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AEH 20000 - Hybrid power cabinet
Off-grid mode
1. AEH connected to PV modules on DC side and grid on the AC side;
2. AEH connected to AC load and AC supply (grid or genset)
3. Batteries started.
4. Every switches and breakers on
a. If PV greater than consumption, PV supply consumption and charge batteries
b. If PV lower than consumption, PV and batteries supply consumption, power
consumption can’t be greater than nominal power of cabinet
c. When the battery level is low, the cabinet is connected to the grid by contactor or start
genset to supply loads and charge batteries.
CAUTION
CAUTION
When the ambient temperature is too high, it is normal that the AEH reduces the
output power. However, if this frequently happens, check the cooling surface of the
AEH or place the AEH in a better ventilation condition place. If the AEH fan is dirty,
please clean the fan, if there is a problem with the AEH internal electrical, please
seek help from professional services.
3.5 Battery setting
Battery is an important part of the energy storage system, strict protection is needed in the whole
operation process. Protection threshold needs to be set on AEH to ensure safe operation of battery,
parameters including: battery quantity and unit quantity, capacity, charge current, discharge current,
over voltage protection, under-voltage protection and so on. Battery parameter setting need to be
done by professional personnel. lmproper setting of the battery will affect the normal operation.
3.6 Protection
Anti-islanding
When the local power grid shut down due to malfunction or maintenance of equipment, the AEH will
be physically cut off the connection to the grid, in order to protect operating personnel working in the
electricity grid, and the cabinet is in compliance with the relevant standards.
Lightning protection
Cabinet lightning protection module has the DC / AC side lightning over voltage protection to avoid
the AEH from being damaged. More protection features, please refer to section 6.3.
3.7 Storage
If there is a long time before installation or operation, the AEH cabinet should be stored appropriately.
●The packaging should be restored toits original state;
●Retain the desiccant in the packaging.
●The AEH can only be stored when it is stopped and ail the doors are closed
●in a dry room to protect the internai circuits against dust and moisture.
●Operating temperature range: -10~55 °C
●Operating relative humidity range:0 %~90%
●Max. altitude:2000 m
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AEH 20000 - Hybrid power cabinet
CAUTION
CAUTION
●Strictly prohibited storage without packing !
●Avoid storage in direct sunlight!
●Keep upright and no stacking on top of the crate.
3.8 Dimensions
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AEH 20000 - Hybrid power cabinet
4. Product description
4.1 Installation condition requirements
To ensure normal operation of the machine, the installation environ mentis required as follows:
●The ingress protection of AEH is IP54. Moreover, as this product is an electronic equipment, it
shall not be placed in humid environment;
●lnstall indoors and avoid sunlight and rain;
●Ventilation of the room shall be good;
●The installation environment shall be clean;
●As some noise will be produced in operation, this equipment shall be installed far from
residential quarters;
●The installation ground shall be even enough, and firm enough to support the weight of
cabinet;
●The installation position shall be convenient for maintenance;
●Ambient temperature range: 0°c
●Appropriate space shall be reserved for the machine to ensure ventilation and cooling.
We suggest AEH is installed in the distribution room. The floor, wall clearance, Ventilation equipment
and precaution should be designed by professional personnel and satisfy the following requirements.
Foundation requirement
AEH is required to install on even ground with fire-retardant material as the surface or channel steel
support structure, and sag or tilt ground is prohibited. The foundation shall be solid, safe and reliable.
The foundation shall be capable of bearing the load of the AEH. lts load bearing ability shall be
concerned throughout the installation place selection.
Clearance space
During installation of the AEH, appropriate space shall be left to the wall or other equipment, in order
to satisfy the requirements on narrowest maintenance channel, emergency access and ventilation.
ln front of the installation place of AEH, a space of 1m or more shall be ensured, the back 0.1m or
more, the side 0.1m or more, the top 0.6m or more to ensure easy installation, cooling and
maintenance.
Cable trench
The cable connection of AEH adopts bottom inlet and bottom outlet. Cable trenches are
recommended.
The cable trenches are often designed and constructed by the construction side based on relevant
standards, with the equipment weight and dimensions required to be considered. Good electrical
connection is needed between different cable trenches and GND terminais.
Wiring specification
Cables in the AEH can be classified into either power cables or data cables.
ln cabling, the power cable shall be kept far away from, and the cable shall be kept in right angle at
cross. The cable shall be as short as possible, and an appropriate distance shall be kept to the power
cable.
The power cable and data access shall be placed in different cable trenches respectively to avoid
lengthy routing between the power cable and other cables, so as to reduce the electromagnetic
interruption caused by sudden change of the output voltage. The distance among the power cable
and data access shall be more than 0.1m. When the cables are crossed, the cross angle shall be 90
degrees, while the distance can be reduced appropriately.
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AEH 20000 - Hybrid power cabinet
Ventilation requirement
ln operation, AEH will produce a lot of heat. When ambient temperature is too high, the electrical
property of the equipment may be affected, the equipment may even be damaged. Therefore, the heat
release shall be fully considered in designing the contrai room to ensure operation of the equipment in
high efficiency.
Ventilation environment
To satisfy the ventilation requirement of AEH, its installation environment shall meet the following
conditions:
●lnverter shall be prevented from being installed in the place of poor ventilation condition and
insufficient air flow;
●The air inlet shall have enough air supplementation.
Ventilation equipment
To ensure safe and reliable operation of the equipment, the ambient temperature must be within the
permission range 0°C~55°(, therefore, appropriate ventilation devices must be equipped with to
release the heat generated by the
equipment.
There must be ventilation equipment inside the distribution room to ensure release of the waste heat
generated by the AEH from the equipment, and allow for maximum ambient environment
temperature. This can be realized from installation of exhaust devices;
Another fan can be added at the air duct outlet to exhaust the air out and ensure balanced pressure;
The direction of the air outlet shall be selected according to the local actual wind direction;
Pay attention to the dust-proof measures and waterproof design at the air inlet and outlet;
If more air ducts are required, its dimensions shall be designed by the professionals according to the
air output a mount.
Other protections
According to EMC requirement and noise level, the AEH shall be installed in industrial environment.
4.2 Tools and spare parts required for installation is as follows:
Hoisting crane, forklift or fork lift truck (with the capacity for bearing the weight of the AEH)
●Torque wrench
●Screwdriver
●Wire stripper
●Terminal crimping machine
●Megger and multimeter
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AEH 20000 - Hybrid power cabinet
4.3 Transportation of packaged whole machine
This cabinet is transported as an integrated unit, and the user can hoist it from the bottom with a
forklift, or move it with a hoisting crane or crane.
Note 1: The cabinet is integrated and cannot be disassembled either in transportation or installation.
Any fault attributed to modification unauthorized by SIREA is beyond the quality assurance.
Note 2: ln movement, tilt, violent shake or sudden force upon the AEH shall be prevented, such as
sudden down of lifting.
Note 3: Please read carefully the labeled parameters to select an appropriate transportation means
and storage place.
We suggest the user make use of a forklift to move the cabinet if possible.
CAUTION
CAUTION
Before the AEH is moved to the designated place, we suggest to lay the DC input
cable and AC main power supply cable. As these cables are relatively thick, they are
hard to be cabled after the AEH is installed.
4.4 Electrical installation
4.4.1 Input and output requirements
DANGER
Caution, risk of danger
There is a danger of electrical shock of high voltage in AEH's operation; only
electricians of professional skills can operate. All connections with this equipment
shall be done under non-voltage state : The AEH may be damaged if the input or
output terminal is incorrectly plugged. Failure of acting upon this information may
cause serious personal injury or significant property loss even to death.
Cable (Cu)
Cable Diameter Requirements (mm2)
Aperture
Model
AEH20
Grid Phase A
1 input cables with each at least 6mm2
ct > 8,20N*m
G rid Phase B
1 input cables with each at least 6mm2
ct > 8,20N*m
G rid Phase C
1 input cables with each at least 6mm2
ct > 8,20N*m
NWire
1 input cables with each at least 6 mm2
ct > 8,35N*m
Earth Wire
More than 16 mm2. Green and yellow is
recommended
ct > 8,20N*m
Transducer Wire
0.75mm2,shielded Twisted pair is recommended
/
Ethernet
Category 5 FTP/UTP or more is recommended
/
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AEH 20000 - Hybrid power cabinet
Battery
The positive and negative highest voltage of the battery shall not exceed 60V, otherwise, the
equipment will be in over-voltage protection state, and cannot work normally.
Three-phase grid
lnverter will continuously inspect whether the grid satisfies the grid connected conditions. The
following is the grid limit for satisfaction of local Grid connected Conditions (requirements in different
countries may vary, the value can be set up and please refer to local grid connected regulations for
details), and the grid is a three phase grid. Meanwhile, it shall be permitted by the local power supply
department before installing Grid-connected inverted power.
Model
AEH20
Grid Voltage Limit
184 – 265 Vac per phase
Grid Frequency Limit
45Hz-5 5Hz/5 5Hz-65Hz
4.4.2 DC batterie side wiring
DANGER
Caution, risk of danger
The positive and negative of the battery shall not be connected in reverse. A
multimeter shall be used to determine the polarity first, and then connect into the
corresponding input ends of the AEH.
Specific procedures are as follows:
1. Cut off the distribution circuit breaker at the DC side, and ensure that no voltage on the wire at
DC side.
2. Determine the positive and negative with a multimeter
3. Connect the positive of the battery to the "DC +"of DC input
4. Connect the negative of the battery to the" DC-" of DC input
5. Please be sure that all wirings are fastened.
4.4.3 AC side wiring
DANGER
Caution, risk of danger
When connecting the AC grid, cut off the circuit breaker at the AC side to ensure
that the AC wire connecting to terminals has no electricity.
Connect AC grid:
1. Cut off the circuit breaker at AC side, to ensure that the AC wire connecting to terminais has
no electricity. Confirm it with a multimeter.
2. Connect phase on grey terminal XP 2/3/4
3. Connect neutral on blue terminal XP1
4. Please confirm that the wiring is fastened
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AEH 20000 - Hybrid power cabinet
4.4.4 Earthing
Cabinet must be earthing well for safety; Please make sure of the connection between PE in
power distribution cabinet and PE copper in the AEH good; and make sure the earthing cable more
than 16mm2 and the earthing resistance must satisfy the demand of IEC standard.
4.4.5 DC PV modules side wiring
Specific procedures are as follows:
●Cut off the PV module string at the array with MC4 connectors, and ensure that no voltage on
the wire at DC side.
●Determine the positive and negative with a multimeter
●Connect the positive of the PV to the PV terminals (XPV2/4/6/8)
●Connect the negative of the PV to the PV terminals (XPV1/3/5/7)
●Please be sure that ail wirings are fastened.
4.5 Communication
AEH can be connected to external transducer, in this case connect a cable to XC1/2 terminal and
13/14 terminals of SIREA multiphase transducer.
AEH can be connected to Interned, Ethernet cable can be connected to special connector
Power on steps
First power-on :
1. Step 1: Start batteries
2. Step 2: Close DC batteries circuit breakers
3. Step 3: Close AC circuit breaker
4. Step 4: Close DC PV circuit breaker
5. Step 5: lnverter will connect to grid after checkings and start power regulation according
measurement of transducer
Power off steps
After the AEH is completely powered off, the general DC switch at battery side and the Grid switch at
grid side still maintain voltage. If operations are needed, please be sure to eut off the outer power
completely, CAUTION and wait for not less than 5 minutes.
1. Cut off AC SWITCH;
2. Cut off PV DC SWITCH;
3. Cut off Batteries DC SWITCH,
4. Cut off the switch of AC distribution cabinet.
5. In case of long time shutdown stop batteries
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AEH 20000 - Hybrid power cabinet
5. GUI (Graphic User Interface) instruction
5.1 LCD display screen introduction
User can view the information of the cabinet operation on the LCD touch screen.
After powering on the LCD will enter on the home page after about 15s. Then you can begin to read
the information.
At the first power on of the screen, you will have to configure the touch screen by touching the 4
square buttons one by one as shown below :
Then you will be able to read the main information of the cabinet.
Below, a description of an example of information which can appear on the system.
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AEH 20000 - Hybrid power cabinet
On this situation, the photovoltaic power is mixed with grid power to charge battery and ensure load
power.
The total amount of load power is 1898W and a backup load power include in the total load is 544W. If
there is a grid blackout, the battery will continue to power only the backup load of 544W in off grid
mode.
On the battery side, the state of charge (SOC) is 83% and the battery is charging at 954 W.
5.2 History
You can select the graphical page to see historical data by clicking on the following
button on the main page
Note : You can always go back to the home page by clicking the home button on the bottom left
corner.
On the graphical view, you will be able to see historical data of the cabinet (grid, genset if present,
photovoltaic and load consumption).
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AEH 20000 - Hybrid power cabinet
You can select the time range view (1 hour, 24 hours or 1 week), the default range is 1 hour.
On the next page (button on the bottom right corner), you can see information related to the
battery(ies). In green the state of charge SOC and orange the state of health SOH of the battery(ies).
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5.3 Alarms
If an alarm is set, a buzzer is rising and a bell is shown on the top left corner of the home
page. After clicking on it, you will be able to see the current alarms.
Here is the list of the cabinet alarms which can appear on this alarm page :
Information
Battery API low need replacement
Clock update online fault
Communication fault with grid transducteur
Communication fault with AEH 1
Communication fault with AEH 2
Grid voltage missing
Low battery voltage
Onduleur 1 in fault (fault code)
Onduleur 2 in fault (fault code)
PV fault (24h without PV)
SOH batteries low
Surge arrester fault
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