All-in-one machine for wind turbine

Abstract

The invention discloses an all-in-one machine for wind turbines, which is characterized in that it includes a cabinet body, and a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed in the cabinet; the grid-connected unit includes a main circuit breaker; the main control power distribution unit The unit includes a three-phase transformer and PLC. The input side of the three-phase transformer is electrically connected to any side of the main circuit breaker of the grid-connected unit. The output side of the three-phase transformer constitutes the power supply of each power distribution circuit; each of the PLC The input interface is used to receive various parameters, and each output interface of the PLC is used to electrically connect with the control coil of the contactor in each power distribution circuit; the frequency conversion unit includes a grid-side inverter, and the input side of the grid-side inverter is used to communicate with the above The AC grid is electrically connected, and the output side of the inverter on the grid side is used to connect with the input side of the three-phase inverter on the rotor side. The all-in-one machine for wind turbines of the present invention has the advantages of smaller volume, lower cost, safe and 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...

Examples

Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0068] like Figure 1 to Figure 14 Shown:

[0069] The all-in-one machine for wind turbines includes a cabinet in which a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed;

[0070] The grid-connected unit includes a main circuit breaker 100, the input side of the main circuit breaker 100 is used to connect to the stator winding of the wind turbine generator, and the output side of the main circuit breaker 100 is used to connect to the AC grid;

[0071]The main control power distribution unit includes a three-phase transformer 200 and a PLC 202, the input side of the three-phase transformer 200 is electrically connected to any side of the main circuit breaker 100 of the grid-connected unit, and the three-phase transformer 200 The output side of the PLC constitutes the power supply of each power distrib...

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...

Examples

Embodiment Construction

[0067] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0068] like Figure 1 to Figure 14 Shown:

[0069] The all-in-one machine for wind turbines includes a cabinet in which a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed;

[0070] The grid-connected unit includes a main circuit breaker 100, the input side of the main circuit breaker 100 is used to connect to the stator winding of the wind turbine generator, and the output side of the main circuit breaker 100 is used to connect to the AC grid;

[0071]The main control power distribution unit includes a three-phase transformer 200 and a PLC 202, the input side of the three-phase transformer 200 is electrically connected to any side of the main circuit breaker 100 of the grid-connected unit, and the three-phase transformer 200 The output side of the PLC constitutes the power supply of each power distrib...

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