Offshore wind turbine generator shaft current damage simulation device

Abstract

The invention discloses an offshore wind turbine generator shaft current damage simulation device which comprises a motor, a first main shaft, an experimental bearing, a bearing seat, an upper supporting plate, a lower supporting plate, a programmable power supply, an electric brush, a current loading wire clamp, a second main shaft, a cam, air springs, a vibration exciter and a detection device. The motor and the bearing seat are fixed on the upper supporting plate, and an insulating spacer is arranged between the bearing seat and the upper supporting plate; one end of the first main shaft is connected with an output shaft of the motor, and an experimental bearing is mounted on the first main shaft and is mounted in a bearing seat; the upper supporting plate is supported on the lower supporting plate through the three air springs, and the connecting lines of the centers of the three air springs form a triangle; and the three air springs are respectively connected with an air compressor. The device is simple in structure, and can simulate the stress condition of the bearing of the offshore wind turbine generator under the conditions of lifting and fluctuating motion caused by sea waves and wind power; and the experiment result is more accurate.

Description

technical field [0001] The invention relates to a shaft current damage simulation device of an offshore fan generator. Background technique [0002] As a clean energy, wind energy is an important way for the country to achieve the goal of carbon peaking in 2030 and carbon neutrality in 2060. Offshore wind power has become an important way to utilize wind energy. However, compared with land-based wind turbines, offshore wind turbines are fixed on floating platforms and move with the movement of ocean wind waves. frequently. Bearing shaft current damage is a common failure mode of wind turbines. Under offshore wind, wave and current conditions, its mechanism is coupled with complex mechanical loads, marine floating platform motion loads, motor shaft voltage, and shaft current loads. , the damage mechanism is more complex, and the study of the axial current damage of the bearing of the offshore wind turbine generator becomes an important means to prevent motor failure and imp...

AI Technical Summary

Problems solved by technology

In the prior art, most of the six-degree-of-freedom motion simulation platforms are used to simulate the forces in different directions that the offshore wind turbines bear on the sea surface. The cost of the simulation platform is high, and the six-axis parallel system It is impossible to achieve 360-degree unlimited rotation, and the travel of each degree of freedom is very limited. In the series structure, there are only six tables. The load force requirements of the bottom table are high, which increases the volume of the six-degree-of-freedom motion simulation platform.

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