Performance analysis and fault simulation experiment system of wind machine

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.