Dynamic behavior of grid-connected fixed speed wind turbine based on proportional-integral pitch controller and fault analysis

Abstract

Wind power production is considered as the most promising of all renewable energy supplies to meet the global pledge to climate change. Among all wind power solutions, the Fixed Speed Wind Turbines (FSWT) employing Squirrel Cage Induction Generators (SCIG) is the simplest and cheapest for grid connection. This paper deals with mathematical modeling of a wind turbine based on a (SCIG) integrated into medium voltage electrical networks. A control system for blade pitch angle based on Proportional Integral (PI) controller was performed. In this paper, the dynamic behavior of a (FSWT) connected to the grid is studied. Different types of fault condition are created, simulated and analyzed on the grid side. Faults are applied closely to the grid and cleared by disconnecting and establishing the faulty line.