Multi-degree-of-freedom dynamic loading device for simulating wind power and ocean current load

Abstract

The embodiment of the invention discloses a multi-degree-of-freedom dynamic loading device for simulating wind power and ocean current load. One group of left axial loading pressurized cylinders is distributed on the left end of the loading bearing disk of a loading device along the axial direction; one group of right axial loading pressurized cylinders is distributed at the right end of the loading bearing disk along the axial direction; meanwhile, one group of radial loading pressurized cylinders is distributed on the main shaft at the left end of the loading bearing disk; the loading circuit of the hydraulic system is controlled by a computer control system to control the loading force of the left axial loading pressurized cylinders, the right axial loading pressurized cylinders and the radial loading pressurized cylinders; meanwhile, the loading force is transferred to a hydrostatic bearing by the loading pressurized cylinders and is transferred to a hydrostatic loading disk by the hydrostatic oil film of the hydrostatic bearing; and five-degree-of-freedom load (Fx, Fy, Fz, My and Mz) loading is finished by the combination of each loading force and loading bending moment. The multi-degree-of-freedom dynamic loading device is used for accurately simulating the wind power under the real working condition and various load situations borne the ocean current energy power generation device and each part in the transmission cabin of ocean current energy power generation device.

Description

technical field [0001] The invention belongs to the technical field of wind power and ocean current power generation, in particular to a multi-degree-of-freedom dynamic loading device for simulating wind and ocean current loads. Background technique [0002] In order to cope with the increasingly serious energy shortage problem, the development and utilization of green renewable energy have been paid more and more attention. As an emerging renewable green energy, wind power and ocean current energy will also become an important way to solve the energy crisis due to their considerable reserves and clean and renewable properties. At present, the investment risk of offshore units is very high, and the reliability of the equipment is much higher than that of land-based units. Therefore, the construction of large-scale multi-degree-of-freedom dynamic load loading devices that can completely simulate offshore field operating conditions is very important for accelerating wind and o...

AI Technical Summary

Problems solved by technology

[0004] At present, there is only a drag loading device for simulating the load of a wind turbine in China. This drag and loading device for simulating the load of a wind turbine is mainly composed of an AC motor, a frequency converter, a coupling, a reducer, a main shaft, and a loader. Adjusting the AC motor with a gear reducer can realize the adjustment of the spindle speed and output torque. At the same time, the AC motor drives the spindle to rotate through the reducer to realize power transmission. However, the drag loading device can only simulate the axial torque, but cannot fully and effectively simulate the real torque. Various loads on the power generation device under working conditions. At the same time, the drag loading device can only simulate the load on the wind turbine, but cannot effectively simulate the load on the ocean current energy generator.

[0005] Therefore, in view of the above-mentioned defects in the current prior art, it is necessary to conduct research to provide a solution to solve the defects in the prior art and avoid the inability to comprehensively and effectively simulate the real working conditions of wind power generation devices and offshore All kinds of wind and ocean current loads that power generation devices are subjected to, the multi-free dynamic loading device for simulating wind and ocean current loads of the present invention can be used to accurately and truly simulate wind and ocean current power generation devices in the laboratory environment. multi-degree-of-freedom load

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