The Fault Diagnosis To The Gearbox Of Wind Power Based On The Vector Spectrum

The wind-power system gearbox is the wind electricity system's important component, its running status be good or bad immediate influence the wind electricity system's normal operation. When the gearbox is breakdown, to repair it is very difficult and cost us so much money and time. Therefore compared to the common machinery the gearbox be request more reliability and the service time. The inexorable trend of the wind power generation technology is to establish wind electricity system's condition monitoring and fault diagnosis.The failure diagnosis technology has been widely application and made good use of in many states, such as the chemical industry, the chemical industry, the electric power (mainly referred to thermal power) professions, the metallurgy, the automobile and so on. But this technology is also at the desk study stage in the wind power generation domain's application. Information fusion technology has been made achievements in the equipment fault diagnosis fields. Full vector spectrum method based on the same source data fusion was put forward and applied into the fault diagnosis of Gearbox of wind power.The major topics are to study the gearbox of wind power features of load, low-speed, operating compel, investigate the main features of gearbox of wind power fault. Aiming at the rotary machine disadvantage of the single channel can't overall reflect the real operation status of the equipment and the different channels of the same section sometime express the difficult vibration information. Applies the full vector spectrum technology about fault diagnosis method on the same source data fusion.The numerical algorithm, spectrum illustration and advancement of full vector spectrum are well investaged. Full vector spectrum analysis technology is featured by being comprehensive, direct and easy to be exploited. The fault diagnosis elementary theory be researched and profits from other equipment to vibrate the test technology in the foundation, according to the unit performance requirement and the working conditions, aiming at the wind-power system of drive system design a corresponding test plan, and has obtained the primary signal that accurately and really.Applie to the full vector spectrum technology about fault diagnosis method on the wind-power system gearbox. By the example of the fault diagnosis to the gearbox of wind-power in the north X wind power filed. Investaged that make use of the full vector power spectrum and the full vector cepstrum technology in the wind-power gearbox. Aiming at the doubtful signal to use fault diagnosis. Confirmed that the vector spectrum technology in the wind power gearbox testing is an exact, effective, practicably method in forecast the statement of rotary machine.Therefore used the full vector spectrum technology on wind-power system about gearbox fault diagnosis not only to advance the further development of the theory of information fusion system, but also consummated the fault diagnosis technology application scope widely, which rich the whole gear box diagnostic system.