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The increasing integration of wind power generation brings more uncertainty into the power system. Since the correlation may have a notable influence on the power system, the output powers of wind farms are generally considered as correlated random variables in uncertainty analysis. In this paper, the pair copula theory is introduced to describe the complicated dependence of multidimensional wind...
Turbulent drag reduction has an important significance for energy conservation and emission reduction of the engineering fields, such as mechanical transmission and longdistance transport pipeline transportation. The air-oil two-phase flow model of non-smooth surfaces of rotating-stationary disk system was established based on the finite volume method, the volume of fluid method and RNG k-ε turbulence...
Wing rock is a highly nonlinear phenomenon, which is a main limit-cycle oscillation for an aircraft operating at subsonic speeds and high angles of attack. It is a challenge to design a valid controller under the condition that there exists model error and external disturbance. In this paper, a sliding mode disturbance observer based on homogeneity is proposed to improve the disturbance estimate performance...
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