Development of a modified generic model of a DFIG-based wind turbine considering mechanical transient

Abstract

Over the last decade, wind power penetration has increased substantially because of environmental considerations. With the integration of so much wind power generating capacity, system operators are facing the challenge of maintaining the stability of the power system. Use of the complex wind turbine (WT) model to analyze the steady-state operation and dynamic stability of the power system with high wind power penetration requires a long computation time. Accordingly, generic models of various WTs have been developed. This work develops both generic and complex models of the WT that is based on the doubly fed induction generator (DFIG), which is the so-called type-3 WT. Both generic and complex models include inertia of the WT and pitch control with the anti-windup mechanism to ensure that they can represent the electrical and mechanical parts of a real WT. This work compares the characteristics of the developed complex and generic models. The simulation results demonstrate that the developed generic model of the type-3 WT reasonably approximates the complex model.