All-in-one machine for wind turbine generator set

Abstract

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 side frequency converter is used for being electrically connected with the alternating-current power grid, and the output side of the power grid side frequency converter is connected with the input side of the rotor side three-phase frequency converter. The all-in-one machine for the wind turbine generator set has the advantages of smaller size, lower manufacturing cost, safeand reliable structure and high cost performance.

Description

technical field [0001] The invention belongs to the field of wind power generators, and in particular relates to an electrical cabinet used in a tower base of a wind power generator. Background technique [0002] Wind turbines (referred to as: wind turbines) are equipment used to convert (clean, environmentally friendly and renewable) wind energy into electrical energy. [0003] The wind turbine mainly includes a tower, a nacelle and a wind rotor (the wind rotor includes blades and hubs). The tower is used to be fixed on the ground. The whole wind rotor is rotatably installed on the nacelle through the main shaft and bearings, and is fixed to the nacelle through the gearbox. The rotating shaft of the generator is connected; the whole cabin can be horizontally rotated and installed on the top of the tower. The engine room control cabinet is installed in the engine room (for yaw control, safety monitoring and tower base control cabinet communication, etc.), and the tower base...

AI Technical Summary

Problems solved by technology

[0007] 2. Larger volume and floor space

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