Simulation testing device and method for multidirectional alternating load of wind power transmission system

Abstract

The invention provides a simulation testing device and method for the multidirectional alternating load of a wind power transmission system. The simulation testing device for the multidirectional alternating load of the wind power transmission system comprises six controllable telescopic actuation arms, wherein the six controllable telescopic actuation arms are installed on a fundamental rack in the mode that the six controllable telescopic actuation arms are evenly divided into two groups, one end of each actuation arm is fixedly connected with a support in a spherically hinged mode, the support is fixed to the fundamental rack, the other ends of one group of actuation arms are fixedly connected with a front bearing seat of a main transmission shaft in a spherically hinged mode, and the other ends of the other group of actuation arms are fixedly connected with a rear bearing seat of the main transmission shaft in a spherically hinged mode. One end of the main transmission shaft is connected with a main motor providing the main torque, and the other end of the main transmission shaft is connected with a step-up gear box for a test. The simulation testing device for the multidirectional alternating load of the wind power transmission system further comprises a central control unit connected with the main motor and the six actuation arms. An input simulated load comprises a main torque load and a main rotation and non-torsion load. After the simulated load is input into the central control unit, the central control unit sends orders of execution action and action force to the main drive motor and the six actuation arms so that multidirectional alternating load simulating loading of the wind power transmission system can be achieved. By the adoption of the simulation testing device and method for the multidirectional alternating load of the wind power transmission system, the actual torsion, the actual impact and the actual bending load borne by a transmission chain of a wind power generating device installed high above the ground can be simulated completely.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment transmission systems, in particular to a multi-directional alternating load simulation test device and method for wind power transmission systems. Background technique [0002] In order to deeply study the influence mechanism of the structural design and manufacturing parameters of the key components of the wind power transmission chain on its reliability, it is necessary to carry out experimental research on the performance of the wind power transmission chain under complex load conditions. Due to the particularity of the installation and operation of wind power generation equipment, it is very difficult to carry out the operation test of the wind power transmission system under real working conditions in the high-altitude field. Therefore, the laboratory-level wind power transmission chain simulation test is the main technical means of the current scientific research on t...

AI Technical Summary

Problems solved by technology

However, most of the commonly used wind power transmission chain simulation experiment devices can only load the main torsional load, and cannot simulate various types and multi-directional loads other than the main torque—including the axial impact of the impeller on the transmission chain under the action of wind load, and The particularly prominent horizontal and vertical bending moments in the process of yaw and pitch are far from meeting the requirements of in-depth design and manufacturing and scientific research on structural performance, which greatly limits the experimental research and development of wind power transmission systems. The accuracy and usability of its relevant research results

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