Off-grid Controller is technologically the most important component in wind generator systems, which convert Three AC current from wind turbine into DC current then charge the battery bank.The GREEF wind off-grid controller can significantly boosts electricity production through dedicated MPPT technology, and employs advanced technologies such as modular design, electrical isolation, PWM unloading, and host computer control. It is equipped with a large touchscreen and IOT functionality, enabling efficient, safe, and intelligent power generation and operation & maintenance management.
Power tracking:
wind energy MPPT, 98% engagement with actual wind energy output curve, power generation enhancement.
Customized development of wind energy-specific power absorption circuit:
1.Modularized power absorption circuit, hot-swappable, easy maintenance.
2.Input and output electrical isolation, protect the back-end load.
3.High efficiency at low wind speed, wide input voltage range.
4.Saturation mode, matching load power output
PWM unloading:
1.Fan self-powered mode, fast response.
2.Limit speed and torque to ensure the safe operation of the wind turbine.
3.Soft unloading adjustment, reduce the burden of fan output.
Upper computer trusted control:
RS485 Modbus RTU, real-time regulation of voltage and current.
Touch screen:
1.Display voltage, current, power, power generation, operation status, etc., with alarm query.
2.Historical data, alarm information date query.
3.On-site adjustment of parameters.
Safety protection:
over-voltage, over-current, anti-reverse connection, short circuit protection.
IOT IOT function:
1.Wired network, APP remote view and control.
2.Remote data export.
|
Model
|
AHCC-5KW
|
AHCC-10KW
|
AHCC-20KW
|
AHCC-30KW
|
|
Rated power
|
5KW
|
10KW
|
20KW
|
30KW
|
|
Product Type
|
MPPT, high frequency isolated new energy converter
|
|||
|
DC output side
|
||||
|
Type of energy storage
|
Lead-acid batteries, lithium batteries, DC bus bars, etc.
|
|||
|
Rated output current
|
100A
|
200A
|
80A
|
150A
|
|
Output Voltage Range
|
42-240Vdc (parameters adjustable depending on type of energy storage)
|
200-1000Vdc (parameters adjustable depending on type of energy storage)
|
||
|
Voltage stabilization accuracy
|
≤±0.5%
|
|||
|
Stabilization accuracy
|
≤±1%
|
|||
|
Wind turbine input side
|
||||
|
Rated voltage
|
48Vac-380Vac
|
380 Vac
|
||
|
Maximum withstand voltage
|
290Vac-530Vac for 5 seconds
|
600Vac for 5 seconds
|
||
|
MPPT voltage range
|
90~520V customized
|
220~530Vac
|
||
|
Maximum power
|
10kW
|
20kW
|
40kW
|
60KW
|
|
Rated Input Current
|
40Aac
|
80Aac
|
40Aac
|
80Aac
|
|
Input protection
|
Fuses; lightning protection circuits
|
|||
|
Unloading side
|
||||
|
Unloading method
|
PWM
|
|||
|
Rated unloading current
|
40Adc
|
100Adc
|
50Adc
|
100Adc
|
|
Maximum withstand current
|
60A
|
200A
|
200A
|
400A
|
|
Working environment conditions
|
||||
|
Ambient temperature
|
-25℃~50℃
|
|||
|
Storage temperature
|
-40℃~75℃
|
|||
|
Relative humidity
|
0 to 95%
|
|||
|
Height above sea level
|
3000m full load output
|
|||
|
Communication interface
|
Standard: RS485/TCP
|
|||
|
Size of the controller (mm)
|
485×267×450mm
|
485×267×450mm
|
343×605×970mm
|
343 x 605 x 970mm
|
|
Controller Weight
|
29.5kg
|
38.5kg
|
61.5Kg
|
71.5Kg
|
|
Size of the Dump load (mm)
|
695×131×194mm
|
700×450×750mm
|
820×620×900mm
|
900 x 700 x 1270mm
|
|
Dump load Weight
|
18kg
|
40kg
|
80kg
|
120Kg
|