Wind Energy Conversion System Modeling toward Different Approaches

Abstract

The main focus of this chapter is to modeling the different parts of the wind energy conversion system (WECS) and reviewing the different approaches used in this context. The chapter starts with the aerodynamic and the structural modeling of the wind turbines (WTs), and a description of the steps used to derive a linear time invariant (LTI) model. Thereafter, the chapter introduces models of the electrical actuators in the three phases (abc) and park phases (dq) reference frames, and recalls the assumptions considered. The chapter finishes by presenting the pulse width modulation (PWM) control strategy, the power converters and the pitch actuator models.

Wind energy conversion technologies and engineering approaches to enhancing wind power generation: A review

“…The general structure of WECS is illustrated in Figure 1 . In general, the energy transforming network can be structured as four main units [ 73 ]: aerodynamic unit, comprising primarily the turbine rotor, which is made up of blades, and turbine hub that is the bearer for blades; drive train, usually consisting of: slow-speed shaft – tied to the turbine hub, speed enhancer and maximum-speed shaft – running the electrical generator; electromagnetic unit, comprising basically of the electric generator; and electric component, involving the devices for grid integration (power electronics converter, transformer, etc. ), and local grid.…”