All-in-one machine for wind turbine generator set

The invention discloses an all-in-one machine for a wind turbine generator set, and the all-in-one machine is characterized in that the all-in-one machine comprises a cabinet body, and a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed in the cabinet body; the grid-connected unit comprises a main circuit breaker; the main control power distribution unit comprises a three-phase transformer and a PLC; the input side of the three-phase transformer is electrically connected with any side of a main circuit breaker of the grid-connected unit,and the output side of the three-phase transformer forms a power supply of each power distribution loop; each input interface of the PLC is used for receiving various parameters, and each output interface of the PLC is electrically connected with a control coil of a contactor in each power distribution loop; the frequency conversion unit comprises a power grid side frequency converter, the input side of the power grid sid