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 3323-3334

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/tie.2007.904022