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Research Articles

Coordinated inertia response from permanent magnet synchronous generator (PMSG) based wind farms

Authors:

John Licari,

GB
About John
Department of Industrial Electrical Power Conversion, Faculty of Engineering, University of Malta, Malta.
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Janaka Ekanayake

LK
About Janaka
Department of Electrical and Electronic Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya.
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Abstract

A simplified model of a wind turbine connected to the grid through a power electronic interface was developed to carry out inertia response studies. This model was validated using the detailed model simulation and experimental results. The results show that wind turbines provide inertia response for 3 − 4 s and then operate at reduced power until they return to their steady state operating point. As this could hinder the frequency recovery of the power system, the aggregated inertia response from a wind farm was investigated by delaying the frequency signal to the inertia controller of each turbine based on their status of operation. How local frequency measurements can be used for a wind farm connected through an AC network is also discussed. By connecting a number of wind turbine models in parallel and operating them under different wind speeds, frequency commands and inertia controller gains, it was demonstrated that an inertia response of more than 10 s can be provided by coordinating the inertia response of individual turbines.

J.Natn.Sci.Foundation Sri Lanka 2015 43 (4): 347-355

How to Cite: Licari, J. and Ekanayake, J., 2015. Coordinated inertia response from permanent magnet synchronous generator (PMSG) based wind farms. Journal of the National Science Foundation of Sri Lanka, 43(4), pp.347–355. DOI: http://doi.org/10.4038/jnsfsr.v43i4.7969
Published on 26 Dec 2015.
Peer Reviewed

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