The 30kW On/off-grid Controller with Pitch Controller offers a versatile solution for medium-scale renewable energy systems, combining wind turbine optimization with flexible grid connectivity.
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Technical Parameters of the On Grid Wind Turbine Controller 15KW-30KW
Type | NE-GT15KW | NE-GT20K | NE-GT30KW |
Wind turbine rated power | 15KW | 20KW | 30KW |
Wind turbine Max. power | 30KW | 40KW | 60KW |
Wind turbine rated voltage | AC380V-400V | AC380V-400V | AC380V-400V |
Function | Rectifier,control, DC output | ||
Automatic protection function | Over voltage protection, network electric cut off protection, regulated supply output, arrester, reset, emergency switch, Yaw control, change OARS | ||
Manual function | Manual brake | ||
Display mode | LCD | ||
| Display content | Wind turbine voltage, current, power; Solar voltage, current, power; DC output voltage, DC output current, DC output power, total power. | ||
PWM constant voltage | ≥550dc | ≥550dc | ≥550dc |
Wind turbine deflection 45°（adjustable） | ≥550dc | ≥550dc | ≥550dc |
Wind turbine 3-phase dump load voltage1 | 580±5Vdc | 580±5Vdc | 580±5Vdc |
| Wind turbine 3-phase dump load voltage2 | 580±5Vdc | 580±5Vdc | |
Wind turbine deflection 90°（adjustable） | 580±5Vdc | 580±5Vdc | 580±5Vdc |
Time-lapse of the wind turbine 3-phase dump load2 | 12-20 min | 12-20 min | 12-20 min |
PWM dump load fuse | 50A | 63A | 80A |
Fuse of DC output | 63A | 80A | 100A |
Wind speed adjustable） | ≥2m/s | ||
| Wind direction adjustable） | 0-360° | ||
Work environment temperature | -30-60°C | ||
Relative humidity | ＜90% No condensation | ||
Noise (1m) | ＜40dB | ||
Degree of protection | IP20(Indoor) IP65 (Outdoors) | ||
| Cooling method | Forced air cooling | ||
*Communication interface (optional) | RS485/USB/GPRS/WIFI/Ethernet | ||
*Temperature compensation(optional) | -4mv/°C/2V,-35°C~+80°C,Accuracy:±1°C | ||
Size of the controller (mm) | 600*550*1220mm | ||
Weight of the controller | 80KG | ||
Size of the dump load (mm) | 690*450*530 | 720*500*1300 | 720*500*1300 |
| Weight of the dump load | 41Kg | 70Kg | 80Kg |
*Above parameter only for reference
1. Could be custom made to user specifications.
2. Could have solar power control subject to user demand.
Technical Parameters of the On Grid Wind Turbine Controller 50KW-200KW
Type | NE-GT50KW | NE-GT100KW | NE-GT200KW |
Wind turbine rated power | 50KW | 100KW | 200KW |
Wind turbine Max. power | 100KW | 200KW | 300KW |
| Wind turbine rated voltage | AC380V-400V | AC380V-400V | AC380V-400V |
Function | Rectifier,control, DC output | ||
Automatic protection function | Over voltage protection, network electric cut off protection, regulated supply output, arrester | ||
Manual function | Manual brake, reset, emergency switch，Yaw control, change OARS | ||
Display mode | LCD | ||
| Display content | Wind turbine voltage, current, power; Solar voltage, current, power; DC output voltage, DC output current, DC output power, total power. | ||
PWM constant voltage1 | ≥550dc | ≥550dc | ≥560Vdc |
PWM constant voltage2 | ≥550dc | ≥560Vdc | |
Wind turbine deflection 45°（adjustable） | ≥550dc | ≥550dc | ≥560Vdc |
Wind turbine 3-phase dump load voltage1 | 575±5Vdc | 575±5Vdc | 580±5Vdc |
Wind turbine 3-phase dump load voltage2 | 580±5Vdc | 580±5Vdc | 12-20 min |
| Wind turbine 3-phase dump load voltage3 | 580±5Vdc | 600±5Vdc | |
Wind turbine deflection 90°（adjustable） | 580±5Vdc | 580±5Vdc | 12-20 min |
Time-lapse of the wind turbine 3-phase dump load2 | 12-20 min | 12-20 min | 600±5Vdc |
PWM dump load fuse | 63A | 80A | 12-20 min |
Fuse of DC output | 80A | 100A | 63A*3 |
Wind speed（adjustable） | ≥2m/s | ||
| Wind direction（adjustable） | 0-360° | ||
Work environment temperature | -30-60°C | ||
Relative humidity | ＜90% No condensation | ||
Noise (1m) | ＜40dB | ||
Degree of protection | IP20(Indoor) IP65 (Outdoors) | ||
| Cooling method | Forced air cooling | ||
*Communication interface (optional) | RS485/USB/GPRS/WIFI/Ethernet | ||
*Temperature compensation(optional) | -4mv/°C/2V,-35°C~+80°C,Accuracy:±1°C | ||
Size of the controller (mm) | 600*500*1200mm | 600*500*1200mm | 600*500*1200mm |
Weight of the controller | 94Kg | 96Kg | 96Kg |
Size of the dump load (mm) | 720*500*1300 | 720*500*1300(2pcs) | 720*500*1300(2pcs) |
| Weight of the dump load | 107Kg | 107Kg*2 | 107Kg*2 |
*Above parameter only for reference
1. Could be custom made to user specifications.
2. Could have solar power control subject to user demand.
This compact yet powerful controller manages 30kW hybrid systems consisting of wind turbines, solar PV arrays, and optional battery storage, seamlessly switching between grid-connected and standalone operation as needed. Its integrated pitch control system, certified to EN ISO 13849-1 PLd, ensures safe and efficient wind energy capture by adjusting rotor blade angles in response to wind speed variations . Ideal for rural electrification, small commercial operations, and remote facilities, this controller balances performance, reliability, and cost-effectiveness in renewable energy management.
The controller intelligently manages power flow from wind and solar sources, prioritizing renewable generation while maintaining stable output. In grid-connected mode, it feeds excess energy to the utility network, while in off-grid mode, it coordinates with battery systems to ensure continuous power supply, extending autonomy during low renewable production periods.
The integrated pitch drive system operates on 3-phase, 400V AC with a power range of 18-42kW, adjusting blade angles with precision to maximize energy capture and prevent over-speed conditions . Emergency safety runs activate within 2 seconds of detecting critical faults, protecting the turbine from damage during extreme winds or system failures.
Compatible with standard solar inverters and wind turbines, the controller supports multiple input sources and offers Profinet and CANopen communication interfaces for integration with monitoring systems . It includes built-in anti-islanding protection compliant with UL 1741, ensuring safe disconnection from the grid during outages .
Housed in an IP65-rated enclosure, the controller withstands harsh environmental conditions including dust, rain, and temperature extremes from -25°C to +60°C . This durability makes it suitable for remote installations with limited maintenance access.
Remote villages and towns utilize this controller to combine wind and solar energy, reducing reliance on expensive diesel generators while maintaining grid connectivity for essential services like healthcare and education.
Farms and ranches leverage the hybrid system to power irrigation pumps, barn equipment, and residential facilities, reducing operating costs through renewable energy while ensuring reliable off-grid operation during grid outages.
Telecommunication providers deploy the controller to power remote cell towers, combining renewable energy with battery storage to ensure continuous operation, critical for emergency communication and rural connectivity.
The system automatically detects grid presence and switches modes within 50ms, ensuring uninterrupted power supply during transitions. Users can also manually select operating modes via the control interface or remote commands.
The controller works with small to medium wind turbines rated between 10-50kW, with the pitch control system adjusting to turbine-specific parameters through programmable function blocks .
While electrical installation should be performed by certified professionals, the controller includes a user-friendly configuration interface and predefined function blocks for common turbine models, simplifying setup .
Annual inspections of connections and cooling systems are recommended. The pitch control system includes self-diagnostic features, and anti-islanding protection should be tested every five years as required by grid regulations .
NE-GT (Grid-tie) model On grid Wind Turbine Controller Product Characteristics
1.The product is manufactured according the JB/T6939.1-2004 industrial standard and GB/T 19115.1-2003 national standard also with users’ technical requirements.
2.Big LCD display.The images tell working state visually.Various data show: real-time wind turbine voltage,current,solar panel voltage,current,DC output voltage,current,total power generation(The main board is with button battery,in case of power failure, history data can be saved for 30 days).
3.Two sets of control systems：PWM constant voltage system and three-phase dump load system.
4.PWM constant voltage control is 120% of the rated power of the wind turbine. In case exceeding of PWM’s capacity, the three-phase dump load will automatically start immediately. After 10-20 minutes, the three-phase dump load will stop and the wind turbine will re-start to resume power supply to ensure the safe running of the overall wind turbine generation system.
5.When the strong or super-strong wind conditions, the controller can conduct constant voltage output to ensure the inverter safety running.
6.When the condition of disconnected grid-connected inverter, the controller can conduct constant voltage output and wait for inverter resumption.
7.When the grid is cut off, the three-phase dump load of the controller will automatically start to work and the inverter will stop output to grid. When the grid resuming, the controller stops three-phase dump load and the inverter will resume power supply.
8.The inside of the controller is equipped with surge protector. Contain the over voltage into the wind turbine under the bearable voltage of the equipment or system. On another way, to conduct the strong lightening current into the earth directly to avoid any damage of equipment.
9.The controller is equipped with emergency stop switch; in case of emergency, press down the emergency stop button in the front panel to cut off all power supply of the controller and the wind turbine will immediately brake（three-phase dump load).
10.The controller is equipped with manual three-phase dump load switch. To using this switch, the wind turbine will brake (three-phase dump load).
※ Adopt Modbus Communication protocol. Convenient to carry out the secondary development.
※ Adjusting the technical specification via RS485 is available.Convenient to adjust the different wind turbines for professional customers.
※ Support WIFI and GPRS.Customers can monitor the real-time working state of the on grid wind power system via PC and mobile and query history working sate.Both Android and OS are compatible in Mobile.
※ Can increase the solar panel control system according to customer requirements.
※ For the different wind turbine, the controller can be equipped with mechanical yawing, rotate tail control, furled empennage, mechanical brake,hydraulic brake, electromagnetism brake and other brake functions.
On Grid Wind Turbine Controller 50KW-200KW
Product photo
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Technical Parameters
