Input-admittance calculation and shaping for controlled voltage-source converters
Journal article, 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
Author
Lennart Harnefors
Chalmers, Energy and Environment, Electric Power Engineering
Massimo Bongiorno
Chalmers, Energy and Environment, Electric Power Engineering
Stefan Lundberg
Chalmers, Energy and Environment, Electric Power Engineering
IEEE Transactions on Industrial Electronics
0278-0046 (ISSN) 15579948 (eISSN)
Vol. 54 6 3323-3334 4384346Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/tie.2007.904022