Mathematical Modeling of Electromechanical Interaction with DFIG for Ideal Wind Conditions

Abstract

This paper mainly focused on the interaction of the wind turbine structure with the doubly-fed induction generator (DFIG) of the electrical power system under ideal wind conditions. In the DFIG-based wind turbine system, the sinusoidal pulse width modulation (PWM) technique is applied to control the flux, current, and voltage levels. Here, the proportional-integral (PI) blocks indicate PI control methods to regulate the rotor side converter (RSC) and front-end converter (FEC) through the PWM technique to stabilize the DC-link bus voltage. It provides bidirectional power flow in the back-to-back power converter from the electrical machine to the grid and vice-versa. Recently, several research studies have been available in the literature about the electromechanical interaction of the mechanical structure with electrical sections using open-source codes/tools/packages, but it takes high computational time. This paper uses mathematical equations to develop novel codes to interface the wind turbine structure with the DFIG system connected to the grid. The complete mathematical model is simulated under ideal wind condition that takes less computational time using MATLAB/Simulink software.