Development and parameter refinement of a dynamic simulation model of a fixed speed stall control wind turbine under start-up conditions.

摘要

In this study, the dynamics of a fixed speed stall controlled 900 kW wind turbine connected to a 12.5 kV distribution line were modeled and verified with existing field data under start up conditions. Model components include the wind, the turbine rotor and generator, soft-start power electronics and controls, and the distribution grid. PSCAD/EMTDC (Power Systems Computer Aided Analysis and Design/Electromagnetic Transients including Direct Current) was the software platform used. Because detailed system information was not available, (and is often not) an initial model with generic parameters was first created and then refined to more closely match simulation output with field data. A very good correspondence between simulated and measured values was achieved, especially in the overall appearance of current, voltage and real and reactive power waveforms. The verified model was used to simulate the addition of a Static VAR Compensator (SVC) to reduce voltage sag under start up conditions.