Definition of a Voltage-Source Converter dc-side admittance and its impact on dc-network stability
Paper in proceedings, 2015

The aim of this paper is to provide a definition of a parameter that can be used for the study of the dc-network dynamics in VSC-HVDC systems. Through an appropriate selection of subsystem within a point-to-point VSC-HVDC system, a dc-side power dependent admittance is defined. The particularity of this admittance is that, if negative, there is a risk that a dcside resonance becomes amplified. The dc-side power dependent admittance is measured in a EMT model and compared with a linearized mathematical model, showing good agreement between them. The usefulness of the defined admittance is shown through the assessment of various controller modifications on the dcnetwork stability enhancement. Finally, the conclusions from the analysis are verified through time domain simulations.

passivity

dc-network stability

Author

Gustavo Pinares

Chalmers, Energy and Environment, Electric Power Engineering

Massimo Bongiorno

Chalmers, Energy and Environment, Electric Power Engineering

9th International Conference of Power Electronics 2015, Seoul; South Korea, June, 1-5, 2015

2072-2078

Areas of Advance

Energy

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/ICPE.2015.7168063

ISBN

978-895708254-6

More information

Created

10/7/2017