STUDY OF THE TRANSIENT STABILITY MARGIN
IN A WIND SYSTEM WITH STATCOM
Gianfranco Chicco*, Marta Molinas**, Tore Undeland** and Giovanni Viglietti*
*Politecnico di Torino, Dipartimento di Ingegneria Elettrica, corso Duca degli Abruzzi 24,
Torino, Italy, e-mail gianfranco.chicco@polito.it
**Norwegian University of Science and Technology, O.S. Bragstad plass 2E, 7491
Trondheim, Norway, e-mail marta.molinas@elkraft.ntnu.no, Tore.Undeland@elkraft.ntnu.no
Abstract: This paper deals with the analysis of the possible adoption of a STATCOM as an
effective mean for enhancing the transient stability of constant-speed wind turbines. Simulation results
are shown for different configurations of the wind system, with variable size of the shunt capacitors
and length of the transmission line connecting the wind generator to the transmission grid. Significant
enhancements of the transient stability have been obtained with the adoption of the STATCOM, with
considerable increments in the critical clearing times.
Keywords: wind systems, constant-speed asynchronous wind generator, self-excited induction
generator, STATCOM, transient stability, critical clearing time.
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