Reliability analysis of wind turbine combined TBM and CBM

Installed wind turbine capacity is increasing. In this article, with time based maintenance (TBM) and the combination of condition based maintenance (CBM) as the research object, a physical system by establishing a state transition diagram and vector Markov process, and get partial calculus expression, Laplace transform is used to calculate the reliability index of the system, and the system characteristics of TBM and the general law of CBM and system failure rate equation, and will check the rate of TBM for CBM and the combination of optimal maintenance strategy of gradual failure rate. Matlab is used for simulation. The simulation results show that the combination of TBM and CBM can effectively improve the inspection rate of the progressive system.