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Gamesa G87-2.0 MW

All specifications of Gamesa G87-2.0 MW

Benefits

Maximum output at minimum cost per kWh for medium wind sites

Class IIA/WZII.
Pitch and variable speed technology to maximize energy production.
Production of lighter blades using fiberglass, carbon fiber and prepreg method.
Compliance with the main international Grid Codes.
Aerodynamic design and Gamesa NRS® control system to minimize noise emissions.
Gamesa SGIPE: Remote monitoring and control system with Web access.

Mechanical design
Drive train with main shaft supported by two spherical bearings that transmit the side loads directly to the frame by means of the bearing housing. This prevents the gearbox from receiving additional loads, reducing malfunctions and facilitating its service.
Lightning protection
The Gamesa G87-2.0 MW wind turbine generator uses the "total lightning protection" system, in accordance with standard IEC 61024-1. This system conducts the lightning from both sides of the blade tip down to the root joint and from there across the nacelle and tower structure to the grounding system located in the foundations. As a result, the blade and sensitive electrical components are protected from damage
Gamesa SGIPE
Gamesa SGIPE and its new generation Gamesa WindNet™ (wind farm control systems), developed by Gamesa, that allow realtime operation and remote control of wind turbines, meteorological mast and electrical substation via satellite-terrestrial network. Modular design with control tools for active and reactive energy, noise, shadows and wake effects. TCP/IP architecture with a Web interface.
Noise control
Aerodynamic blade tip and mechanical component design minimize noise emissions. In addition, Gamesa has developed the Gamesa NRS® noise control system, which permits programming the noise emissions according to criteria such as date, time or wind direction. This achieves the goals of local regulation compliance as well as maximum production.

Brake
Aerodynamic primary brake by means of full-feathering blades. In addition, a hydraulically-activated mechanical disc brake for emergencies is mounted on the gearbox high speed shaft.
Control system
The Generator is a doubly fed machine (DFM), whose speed and power is controlled through IGBT converters and PWM (Pulse Width Modulation) electronic control.

Benefits:
- Active and reactive power control.
- Low harmonic content and minimal losses.
- Increased efficiency and production.
- Prolonged working life of the turbine.
SMP Predictive Maintenance System
Predictive Maintenance System for the early detection of
potential deterioration or malfunctions in the wind turbine’s main
components.

Benefits:
- Reduction in major corrective measures.
- Increase in the machine’s availability and working life.
- Preferential terms in negotiations with insurance
  companies.
- Integration within the control system.
Grid connection
Gamesa’s doubly-fed wind turbines and Active Crowbar and over sized converter technologies ensure the compliance with the most demanding grid connection requirements. Low voltage ride-through capability and dynamic regulation of active and reactive power.

Blade
Blade bearing
Hydraulic pitch actuator
Hub cover
Hub
Active yaw control
Tower
Main shaft with two bearing houses
Shock absorvers
Gear box
Main disc brake
Nacelle support frame
Transmission: High speed shaft
Douby fed generator
Transformer
Anemometer and wind vane
Top controller
Nacelle cover
Hydraulic unit

Power Curve Gamesa G87-2.0 MW (for an air density of 1.225kg/m3)

Power curve calculation based on DU (Delft University) and FFAW3 airfoils. Calculation parameters: 50 Hz grid frequency; tip angle pitch regulated; 10% turbulence intensity and a variable rotor speed ranging from 9.0-19.0 rpm.