The performance of wind power plants depends on mechanical and electrical components, and on an efficient turbine control system. Therefore, it is essential that the influence of the effective parameters under all relevant operating conditions be known.
ET 224 looks at the components of a wind power drive train. To aid understanding, the main turbine parameters are studied in experiments with simulated characteristic diagrams. An adjustable speed gear motor simulates the typical slowly rotating wind rotor with high torque. A three-stage spur gear is located between the slow-rotating drive side and the fast-rotating generator side. A three-phase synchronous generator with rectifier converts the mechanical energy into electrical energy. The electrical energy is transferred to an electronic load. This electronic load can be controlled directly or via the simulation module in the supplied GUNT software.
The operation and control are carried out via a PC (not included in the scope of delivery) connected via a USB interface. Using the GUNT software, simulated characteristic diagrams of the wind rotor are investigated as a function of wind velocity and rotor blade angle. The power available at the generator, as well as torques at the drive train, can be measured under the chosen operating or simulation parameters. Additionally, the network capable GUNT software makes it possible to observe, acquire, and analyse the experiments at any number of workstations via the customer’s own network with just one licence.
The speed of the generator and the drive-side and generator torques are measured by sensors and displayed digitally in the GUNT software. Various operating windows are available in the GUNT software for carrying out experiments. It is possible to perform single measurements, automated capture of characteristic curves and characteristic diagrams, as well as measurements in autonomous wind-guided turbine mode.