Planetary gears inside a wind turbine planetary transmission are widely used in various industrial fields because of their compact structure and strong bearing capacity. The end user sees an operation panel similar to the actual hardware instrument. LabView uses a graphical language, the interface operation is simple, friendly, and intuitive, and the Labview-designed virtual instrument can be used without the LabView development environment. After a series of signal conditioning, it is input to the virtual instrument testing system. The outside signal needs to be collected by it. The data acquisition card is an indispensable hardware for virtual instrument testing. It is an effective combination of hardware resources of computer, instrument, and measurement and control system, and virtual instrument software resources. The virtual instrument is a product of deep-level combination of modern computer technology and instrument technology. The experiment provides a theoretical basis for fault diagnosis, optimisation design, and life prediction of wind turbine planetary transmissions. The fault diagnosis system developed by LabView is reliable. The results show that the frequency of the corresponding planetary gear cracks in the frequency domain spectra obtained by the experiment is basically consistent with the theoretical calculation of the frequency of cracks in planetary gears. The frequency of the corresponding planetary gear crack in the frequency domain signal is compared with the theoretical calculation of the planetary gear crack failure frequency. The frequency domain signal is obtained from the initial time domain signal obtained by the experiment through the EMD and envelope demodulation method. The hysteresis brake was used in the laboratory to simulate the external wind environment, and the planetary gear transmission planetary gear crack fault diagnosis and testing experiments were performed. Then, the built wind turbine planetary transmission experiment platform was combined with the NI9171 data acquisition card and the upper computer. First, use LabView software to create a signal acquisition system. The article uses LabView to develop a fault diagnosis system for wind power planetary transmissions.
IET Generation, Transmission & Distribution.IET Electrical Systems in Transportation.IET Cyber-Physical Systems: Theory & Applications.
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