The Development Of Online Vibration Monitor System Of Gearbox For Wind Turbine

Recently wind power industry is developing rapidly in the whole world,and China’s total windpower is also increasing papidly.It leads to a greatly increase on wind turbines’ running time so thatMechanical failure ratio of wind turbines also increase rapidly.With the development and perfection of online monitor system,it has been applied to windturbines’ malfunction monitoring widely because of its convenience,effective and mature.Thisissue’s primary research content is to set up an online vibration monitor system of gearbox for windturbine.This system collects gearbox’s vibration signal by micro vibration sensor and microvibration analysis system which are inatalling on the gearbox for wind turbine and then analyzingthis vibration signal through principles of vibration analysis. Afterwards this system determines thevibration characteristics, makes a malfunction warning and sends these monitor messages to onlinemonitoring server through GPRS.At last the monitoring server will make a malfunction warningand recording.This thesis makes a detailed description about software’s and hardware’s composition ofonline vibration monitor system of gearbox for wind turbine.Also it analyzes each module’s designideas and processes.This system uses high-performance16-bit signal processor dsPIC30F family asits information acquisition and processing unit.This series of chips has not only16-bit single chipmicrocomputer’s control features but also high-speed computing performance. GPRS remotewireless communication is accomplished by sim900a. This system obtains detailed analysis ofgearbox vibration signal by actual engineering test and sends this result to the online monitor servercorrectly.It verifies the feasibility of this monitoring system and provides reliable basis for theperfection of this system.Besides, This thesis applies authentication technology of wirelesscommunication to avoid the disclosure of communication content.