Analysis of a State Degradation Model and Preventive Maintenance Strategies for Wind Turbine Generators Based on Stochastic Differential Equations
نویسندگان
چکیده
Preventive maintenance is widely used in wind turbine equipment to ensure their safe and reliable operation, this mainly includes time-based (TBM) condition-based (CBM). Most farms only use TBM as the main strategy engineering practice. Although can meet certain reliability requirements, it cannot fully utilize characteristics of CBM. For this, a state model based on stochastic differential equation (SDE) established paper describe spatio-temporal evolution process degradation behavior generators, which components’ failure represented by proportional hazards model, random fluctuation simulated Brownian motion, SDE solved function transformation method. Based CBM, asymptotic relationship between them, are discussed analyzed, necessity feasibility combination expounded, joint proposed analyzed. The results show that better reflect real deterioration generator. Moreover, has fixed interval, depending global sample tracks and, local track, CBM follow component state. Finally, rationality effectiveness verified practical example.
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ژورنال
عنوان ژورنال: Mathematics
سال: 2023
ISSN: ['2227-7390']
DOI: https://doi.org/10.3390/math11122608