Multifunctional control device of wind power generator based on integrated gate commutated thyristor

Abstract

The invention relates to a multifunctional control device of a wind power generator based on an integrated gate commutated thyristor (IGCT). The invention mainly aims solving the technical problems that an existing high-power power electronic device is very easy to generate overheating phenomenon and further causes failure of the device. The technical scheme of the invention is as follows: the multifunctional control device of the wind power generator based on the integrated gate commutated thyristor (IGCT) comprises a converter on the side of the power generator, an over-voltage protection circuit, the converter on the side of a power grid, a synchronizing grid connection switch, a controller of the synchronizing grid connection switch, a filter, the controller of the converter on the side of the power grid, a man-machine interface controller and the controller of the converter on the side of the power generator, wherein the left access end of the converter on the side of the power generator is connected with external joints X, Y and Z through an inductor L1, the inductor L2, the inductor L3, a circuit breaker DL2, the circuit breaker DL3 and the circuit breaker DL4, and the external joints X, Y and Z are connected with winding joints U1, V1 and W1 of a rotor of the wind power generator.

Description

technical field [0001] The invention relates to a multifunctional wind power generator control device based on an integrated gate commutation thyristor (IGCT), which belongs to a control system for wind power generators in the field of new energy, energy saving and emission reduction. Background technique [0002] With the development of power electronic components and control system structure, such as the turn-off thyristor rectifier (GTO), the development of insulated gate bipolar transistor (IGBT) and the development of frequency conversion technology structure and control technology, large Power electronic devices are widely used in control systems of new energy fields such as wind power generation. But for GTO, the turn-on and turn-off of the device is controlled by the gate circuit, and the turn-off process is non-uniform, which is prone to local overheating and causes device failure. Transistor devices represented by IGBT have high operating frequency, short turn-off...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problems of existing high-power electronic devices that are prone to overheating and cause device failure, and to provide a device that can be used for asynchronous induction generators, double-feed induction generators or permanent magnet direct drives. Generator A multifunctional wind turbine control device based on integrated gate commutated thyristor (IGCT) that is common to all three types of wind turbines and is not prone to overheating and reduces the cost of wind power generation

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