Smoothing Control of Wind Farm Output Fluctuation with Doubly-fed Asynchronous Machine

Abstract

This paper investigates the function of DASM (doubly-fed asynchronous machine) with emphasis placed on its ability to the smoothing control of wind farm output fluctuation. P(active power) and Q(reactive power) compensation from DASM can be regulated independently through secondary excitation controlling. Simulation results by PSCAD show that DASM can smooth the wind farm output fluctuation even following severe wind speed variations. Comparison studies have also been performed among various patterns in determination of the reference value of the wind farm