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EEWG-20KW Wind Turbine Grid Tie Inverter Three Phase

The On grid wind turbine system is composed of wind turbine, on grid controller, on grid inverter, metering device, and power distribution system. Wind energy is converted into AC electrical energy by the wind turbine, and then converted into DC electrical energy by the on grid controller, and then DC electrical energy is converted into AC electrical energy of the same frequency and phase as the grid by the on grid inverter, and part of the power is supplied to the local load. Surplus power is fed into the grid.

EEWG-20KW Wind Turbine Grid Tie Inverter Three Phase


On-grid Connection


General Introduction

The On grid wind turbine system is composed of wind turbine, on grid controller, on grid inverter, metering device, and power distribution system. Wind energy is converted into AC electrical energy by the wind turbine, and then converted into DC electrical energy by the on grid controller, and then DC electrical energy is converted into AC electrical energy of the same frequency and phase as the grid by the on grid inverter, and part of the power is supplied to the local load. Surplus power is fed into the grid.


Optional Functions:

  • The main circuit uses the DSP chip produced by the American TI company, German Infineon IGBT module, drive protection is the Japanese Mitsubishi movement, and the on grid output part use isolation transformer, which is safe and reliable; 

  • Using SPWM pulse width modulation technology, pure sine wave output, automatic synchronous tracking with the grid, power factor close to 1, low current harmonic content, no pollution to the grid, no impact; 

  • Wind turbine input maximum power tracking technology (MPPT) 

  • The power curve of the wind turbine can be set, the default is 20 points, and the internal expansion is 50

  • 7-inch color touch screen display, system operation data and fault information at a glance, and convenient parameter setting;

  • On grid inverter current closed-loop control, controllable and adjustable; 

  • The input DC voltage range is wide, adapt to the needs of different occasions; 

  • Frequency disturbance detection technology to realize anti-island control; 

  • The comprehensive power protection scheme and perfect self-detection and protection functions will stop the on grid inverter when a system failure occurs.

  • Circuit structure is compact, the maximum efficiency≥98%

  • Support RS485, WiFi, GPRS, Ethernet and other communication methods. You can monitor the working status of the on grid wind power generation system in real time through the PC or mobile phone, and you can also query the historical working status. The mobile terminal is compatible with Android and IOS. All data can be connected to the Internet of Things.


Technical Parameters

Type EEWG-20KW
Rated output power (AC) 20KW
Max. Output power (AC) 22KW
Input voltage rang (DC) 0-800V
MPPT Voltage range (DC) 150V-700V
Max. Input current (DC) 44.9A
Rated current 40.8A
THD Current harmonic  <3%(at rated power)
Power factor >0.99
Max. efficiency 98%
Allowable grid voltage range (AC) 220V/380V/440V/480V   (Three-phase)±20%
Allowable grid frequency range 50Hz/60Hz±10%
Automatic operation conditions DC   input and power grid meet the requirements, the inverter operates   automatically
Restart time after power failure 2min   (Adjustable)
Function  Wind   turbine curve setting
Automatic protection Polarity   reverse connection protection, short circuit protection, island effect   protection, LVRT, overheat protection, overload protection, ground fault   protection, etc
Display Touch   screen, LCD
Monitoring content DC   output voltage, current, power; inverter output voltage, current, power;   Cumulative power generation; Grid voltage, Current
Protection level IP20(Indoor)IP65 (Outdoors)
Telematics  RS485/USB/GPRS/WIFI/Ethernet   (optional)
Environment Operating   amb. Temp. & Hum -30-60°C,<90%   no condensation
Noise (1m) <40dB
Refrigeration mode Forced   air cooling
Inverter size / weight 690*275*770mm    58kg


Optional APP function:


中性APP_看图王


Project Sample

On grid project sample 1


On grid project sample 2

On grid project sample 3

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