Preprint Article Version 1 This version is not peer-reviewed

Research of Power Control for Grid-connected Wind Turbine with Differential Speed Regulation

Version 1 : Received: 3 August 2018 / Approved: 6 August 2018 / Online: 6 August 2018 (09:45:04 CEST)

How to cite: Rui, S.; Huan, Z.; Fujun, W.; Gangjun, L. Research of Power Control for Grid-connected Wind Turbine with Differential Speed Regulation. Preprints 2018, 2018080107 (doi: 10.20944/preprints201808.0107.v1). Rui, S.; Huan, Z.; Fujun, W.; Gangjun, L. Research of Power Control for Grid-connected Wind Turbine with Differential Speed Regulation. Preprints 2018, 2018080107 (doi: 10.20944/preprints201808.0107.v1).

Abstract

The differential gear train and speed regulating motor constitute the variable ratio transmission for grid-connected wind turbine with differential speed regulation. The synchronous generator in the system can accessing the power grid without frequency converter. The transmission can realize the mode of variable speed constant frequency that the wind rotor speed is varying and the generator rotor speed is constant. The power control method is studied under the different wind speed which is lower or higher than rated wind speed with using the relational expression of utilization rate of wind energy Cp, pitch angle β and the tip speed ratio λ. The SIMULINK software is used to build the 1500 kW wind turbine model with differential speed regulation. Some different wind speed is made as input. The feasibility of power control method for grid-connected wind turbine with differential speed regulation is verified by the comparison between the simulation results and the theoretical value of the key parameters.

Subject Areas

Grid-connected wind turbine; Differential speed regulation; Power control; Simulation

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