TOWARD A PHYSICS-BASED MODEL OF POWER COEFFICIENT IN HORIZONTAL-AXIS WIND TURBINE

Abstract

Global energy is in a major shift from energy using fossil sources to renewable
energy using more sustainable energy sources. The wind is the clean and
inexhaustible one of renewable energy resources that is available in most parts of
the world. In order for wind power generation to meet more ambitious targets
around the world, it is necessary to understand all the physics behind processes of
electrical generation from wind. In this paper, an analytical physics-based method
is developed to estimate the generated power and coefficient of a horizontal-axis
wind turbines (HAWT). A special point in this paper is the construction of power
coefficients, which compare with coefficients of various wind generation systems,
that fitted as functions from actual data measured from popular wind turbines in
the world.