Input-admittance calculation and shaping for controlled voltage-source converters
Artikel i vetenskaplig tidskrift, 2007
A controlled power electronic converter can cause local instabilities when interacting with other dynamic subsystems in a power system. Oscillations at a certain frequency cannot, however, build up if the converter differential input admittance has a positive conductance (real part) at that frequency, since power is then dissipated. In this paper, input-admittance expressions for a voltage-source converter are derived. It is seen how the admittance can be shaped in order to get a positive real part in the desired frequency regions by adjusting the controller parameters.
grid interaction
TORSIONAL INTERACTION
stability
DISSIPATIVE DYNAMICAL-SYSTEMS
oscillations
converter control
passivity
dissipativeness
Författare
Lennart Harnefors
Chalmers, Energi och miljö, Elkraftteknik
Massimo Bongiorno
Chalmers, Energi och miljö, Elkraftteknik
Stefan Lundberg
Chalmers, Energi och miljö, Elkraftteknik
IEEE Transactions on Industrial Electronics
0278-0046 (ISSN)
Vol. 54 6 3323-3334Ämneskategorier
Elektroteknik och elektronik
DOI
10.1109/tie.2007.904022