Wind generating set master control system and motor-driven pitch changing system testing device

Abstract

The invention provides a wind generating set master control system and a motor-driven pitch changing system testing device, and relates to the field of wind motors. A pitch changing device comprises a pitch changing motor, and a load control device comprises a loading motor. An upper computer is connected with the pitch changing device and the load control device through a master control wind wheel simulation device, the pitch changing motor is connected with the loading motor through a shaft, the upper computer sends signals, such as a wind speed signal and a wind direct signal, which meets wind speed and wind direction requirements of a draught fan to a draught fan master control PLC through the master control wind wheel simulation device, simultaneously sends a wind load signal to the load control device, and exerts torque on an output shaft of the pitch changing motor through the loading motor. The wind generating set master control system and the motor-driven pitch changing system testing device have the advantages that the draught fan master control PLC and the pitch changing device respectively form a closed loop, coordination control can be conducted, a tester can input different models according to different working conditions on spot and conduct various performance tests on master control and pitch changing, and therefore test level in a factory and product adaptability are improved.

Description

technical field [0001] The invention relates to the field of wind power engines, in particular to a test device for a main control system of a wind power generating set and an electric pitch control system. Background technique [0002] As we all know, wind power generation is to convert the kinetic energy of the wind into mechanical kinetic energy, and then convert the mechanical energy into electrical kinetic energy. As a clean and renewable energy, wind energy is a new energy source with great potential, so it has been paid more and more attention by countries all over the world. The wind power generation power supply is composed of wind turbines, towers supporting generators, battery charge controllers, inverters, unloaders, grid-connected controllers, battery packs, etc.; wind turbines include wind rotors, generators; wind rotors It consists of blades, hubs, reinforcements, etc.; it has the functions of blades being rotated by wind to generate electricity, and the head...

AI Technical Summary

Problems solved by technology

Therefore, the test of the pitch control device alone cannot fully reflect the quality of the pitch control device, so the on-site operation must be simulated. The main control PLC of the wind turbine and the pitch control device operate in cooperation and complete all test items

[0005] However, in the prior art, there is no test method for the on-site joint debugging of the electric pitch device and the main control PLC of the wind turbine. Usually, the complete test can only be carried out after the overall hoisting of the wind turbine is completed, so there is a problem for equipment maintenance and The improvement of the system has brought a lot of inconvenience, and many faults cannot be exposed in advance during the operation of the whole machine. At the same time, such on-site testing will also pose a technical problem that threatens the overall safety of the unit.

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