Abstrakt

Steady State and Dynamic Simulation of Grid Connected Cage Induction Generator Driven By Fixed Speed Wind Turbine Using Dig silent

Gayathri S, Chellamuthu C

The paper describes the dynamic wind turbine models implementation in power system simulation tools DIgSILENT POWER FACTORY. The overall objective is to create a model database to support the analysis of the integration between the mechanical structure of the wind turbine and electrical grid. The paper contains description of the models developed in the dynamic simulation language DSL of DIgSILENT, for the non-electrical components of the wind turbine (wind turbine model, aerodynamic model, and mechanical model). The initialization issues on wind turbine models into the power system simulation are also performed. However the main attention of this project is to model the wind turbine concept: 1. Fixed speed wind turbine with pitch angle control using squirrel cage induction generator. 2. Dynamic analysis such as short circuit analysis for the load flow model and flicker analysis are made. These wind turbine concept model is extended for the study of different aspects, e.g. the assessment of power quality, control strategies, connection of the wind turbine at grid and storage systems. For these concepts, control strategies are developed and implemented. Their performance assessed and discussed by means of simulation.