Wind Farm Simulator Model.
Dispatching” operation of the Wind Farm.
This simulated wind Turbine Drivetrain synoptic shall be designed to display the most important signals that arrive in the Nacelle emulator, and the signals going out from the Nacelle emulator. The following is a list of these signals:
•    Rotor speed (rpms), from the Nacelle emulator.
•    Generator speed (rpms), from the Nacelle emulator.
•    Pitch value (º), from the Controller emulator.
•    Hydraulic circuit pressure of the braking system, from Nacelle emulator.
•    Hydraulic circuit Pump status, from the Controller emulator.
•    The state of the valve in the hydraulic circuit, controlled by the “Soft brake” and “Hard brake” coming from the Controller emulator.
•    The status of the Pressure switch in the hydraulic circuit.
•    The Brake Released status (ON or OFF) from the Nacelle emulator.
•    The state of each Generator connection switch (Large: 4 poles and Small : 6 poles), from the Controller emulator.
•    The state of the Over speed detectors (VCU, HCU)
•    The state of the Tower vibrations sensor.
•    The temperatures for the Ambient (setting), Rotor bearing, the Gearbox and the Generator from the Nacelle emulator.
In the simulator, it shall show that the purpose of the Wind & Nacelle synoptic is:
•    To allow the user to control wind speed and direction.
•    To show the Nacelle orientation.
•    To show the number of cable turns connecting the Nacelle’s generator to the Electric Panel at the bottom of the WT.
•    To show the (simulated) wind vane signal.
•    To show the signals controlling the yawing motors, the wind vane signal and the power cable turns. There are also control boxes that allow the user to change wind speed and direction, and manually control the yawing motors.
The simulator shall have a multi view of Electrical Panel synoptic and it shall combine representations for many aspects of the electrical power circuits of a Wind Turbine. Each WT is connected to the PCC (Point of Common Connection) on the Wind Farm either in low voltage or at medium voltage. In the later situation, the WT shall include a low-to-medium voltage transformer, generally located in the base of the tower. The various parts of this synoptic shall display as much information as possible to the user about the parameters values and a number of internal variables. It shall be used to display the following information Outputs, Inputs, from the Grid, Parameters, Values for internal variables used in the algorithms, Buttons for the Manual Yawing control, Buttons for activating the “normal” operation (“START”)or passing to Manual control (“STOP”), Information about the internal State Machines (Operation and Security)
12.2    Figurative description of the Model
An equivalent resemblance of the package and components of the simulator model is indicated in Figure 26.

Figure 26: Equivalent figurative description of the package and components of the simulator model