Performance analysis and fault simulation experiment system of wind machine

Abstract

The invention relates to a performance analysis and fault simulation experiment system of a wind machine, belonging to the technical field of wind machine experiment devices. The system comprises a wind tunnel, a wind machine experiment device and a data analysis and processing system, wherein the wind machine experiment device comprises a rack, a wind wheel, a spindle, a generator, a controller and a sensor of torques, wind speed, speed and displacement. The system can be used for researching the influences of different airfoil profiles, wind speeds, wind wheel faults and mechanical faults on the aerodynamic performance of the wind machine, the vibration characteristics and the output force of a shaft system, and the like, and various faults such as unbalanced wind wheel mass, unbalanced pneumatic power, yawing, no shaft system centering, supporting seat loosening, bearing damages, and the like of the wind machine are simulated and analyzed in real time. Through selecting and assembling different types of bearings such as a self-aligning roller bearing, a cylinder roller bearing, a tapered roller bearing, and the like, the performances of the wind machine in different supporting forms can be compared. The system has good openness, dismantlability and expansibility and is mainly suitable for the fields of scientific researches and teaching of the wind machine.

Description

technical field [0001] The invention belongs to the field of wind turbine experimental devices, in particular to the technical field of experimental equipment for wind turbine performance analysis and failure experimental research. Background technique [0002] As a clean energy, wind energy has a huge global reserve, is renewable, widely distributed, and non-polluting, making wind power generation an important direction for the development of renewable energy in the world. China's wind power industry has developed rapidly in recent years. In order to ensure the safe, reliable and stable operation of wind turbines and the efficient use of wind resources, it is very necessary to carry out research on performance analysis and fault diagnosis of wind turbines. Therefore, many scientific research institutes at home and abroad are conducting in-depth research on the mechanism of wind turbine failures, diagnostic methods, and the development of condition monitoring and fault diagn...

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Problems solved by technology

At present, there is no complete wind turbine performance analysis and failure experiment system for research and analysis. Most of the wind power generation experimental platforms mainly use the motor to drive the wind turbine to rotate through the transmission shaft, or use the way of connecting the wind wheel and the generator. There is no bearing in this connection method, and the vibration signal of the bearing and the main shaft cannot be obtained), these experimental devices cannot reflect the actual situation of large-scale wind turbines well, which greatly limits the research on the operating performance and fault characteristics of wind turbines, thus restricting In-depth study of wind turbine optimization design, shafting dynamics and fault diagnosis theory

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