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Input-admittance calculation and shaping for controlled voltage-source converters

Lennart Harnefors (Institutionen för energi och miljö, Elteknik) ; Massimo Bongiorno (Institutionen för energi och miljö, Elteknik) ; Stefan Lundberg (Institutionen för energi och miljö, Elteknik)
Ieee Transactions on Industrial Electronics (0278-0046). Vol. 54 (2007), 6, p. 3323-3334.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: converter control, dissipativeness, grid interaction, oscillations, passivity, stability, DISSIPATIVE DYNAMICAL-SYSTEMS, TORSIONAL INTERACTION

Denna post skapades 2008-11-12.
CPL Pubid: 77715


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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik (2005-2017)


Elektroteknik och elektronik

Chalmers infrastruktur