Control unit for wind turbine, double-fed asynchronous generator

Modern wind power stations use double-fed asynchronous generators to feed electrical power into the electricity grid. The control unit of the double-feed asynchronous generator permits control and operation of a speed-variable double-feed asynchronous generator in the laboratory. Using the control unit all of the practice-relevant operating states can be emulated and investigated. The WindSim software included ensures user-friendly operation and visualisation of the measurement values.

The control unit has the following features:

• Control unit with two controlled three-phase inverters
• Operation of the double-fed asynchronous generator in under-synchronous and over-synchronous operating mode
• Integrated power switch for connecting the generator to the 3-phase electricity grid
• Autonomous control of reactive and active power, frequency, voltage
• Manual and automatic synchronisation to the 3-phase electricity grid
• USB interface
• Input for incremental shaft-encoder
• Integrated brake chopper permits “fault ride-through” experiments
• Connection voltage: 3 x 300V, 50...60Hz
• Maximum output power: 1kVA
• Operation voltage: 230 V, 50/60Hz
• Dimensions: 297 x 460 x 210mm (HxWxD)
• Weight: 8.3kg