WIND POWER PLANT Russian patent published in 2022 - IPC F03D7/00 H02J5/00 

FIELD: wind energy.

SUBSTANCE: invention relates to wind energy, namely to wind power plants, and serves to convert the kinetic energy of the wind flow into electrical energy using at least two wind turbines and transfer the generated electrical energy to the regional power supply network. The wind farm contains at least two wind turbines for generating electricity, each of which contains a generator and a common device for supplying the generated electricity or part of it to the power supply network. At least two sections of DC buses, two input modules, two output modules and a control module are additionally introduced into the common feeder. The output of the alternating electric current generator of each wind turbine is connected through one of the inputs of the common supply device to the input of the corresponding input module, made in the form of a matching transformer, an AC rectifier, a DC sensor, a DC protection device connected in series. The output of each input module is connected to the DC bus section, and the input of the output module is connected to the bus section. phase current and voltage sensors. The output of the output module is connected to the power supply network through the output of the common feeder and the power line. The AC rectifier output is connected to the DC sensor input through a smoothing filter. In the output module, the step-up transformer and the first block of phase current and voltage sensors are connected through an electromagnetic compatibility filter.

EFFECT: increasing the reliability of generation, improving the weight and size indicators of wind turbines, increasing the efficiency of conversion, maintaining the static stability of generation during transients and deep voltage drawdowns in the network.

10 cl, 7 dwg