Understand the operating categories and functions of wind farm transformers as follows:
1. Step-up transformer: The step-up transformer is mainly used to increase the low-voltage alternating current generated by the wind turbine to the high-voltage alternating current required by the substation. To facilitate the transmission and distribution of electrical energy. The main function of the step-up transformer is to convert the wind turbine power at the low-voltage input end into power at the high-voltage output end to meet the needs of power transmission.
2. Variable frequency transformer: A variable frequency transformer is a device used to adjust the voltage, current or frequency of the AC power supply. It is mainly used in direct-drive wind turbine systems to convert the low-voltage power output by the transmission into electricity. High-voltage and high-frequency electricity drives the power converter to complete electrical energy output. The main function of the variable frequency transformer is to adjust the electricity output by the wind turbine into alternating current to adapt to the transmission requirements of the power grid and the load of the transmission equipment.