Analytical derivation of poorly-damped eigenvalues in two-Terminal VSCHVDC systems
Paper in proceedings, 2017

Under specific conditions, Voltage Source Converter based High Voltage Direct Current (VSC-HVDC) systems can experience stability, or poor-damping related issues. Analytical investigation of the system eigenvalues can demonstrate the impact of physical or control parameters on the system stability. However, especially in case of high-order systems, such expressions are challenging to obtain and so extensive in form that they are impractical to use and cannot provide useful hints on the impact of single parameters on the system's stability. Therefore, current methods in power system analysis rather rely on a purely numerical approach to describe eigenvalues and are deprived of the benefits of the symbolic representation. This paper suggests a method to analytically describe a two-Terminal VSC-HVDC link with respect to its dominant eigenvalues, providing a useful tool for the investigation of poorly-damped performance and system stability, by deriving compact analytical eigenvalue expressions.

Voltage source converter (VSC)

Modelling

Power transmission

HVDC

Author

Georgios Stamatiou

Chalmers, Energy and Environment, Electric Power Engineering

Massimo Bongiorno

Chalmers, Energy and Environment, Electric Power Engineering

Yujiao Song

Chalmers, Signals and Systems, Systems and control, Automatic Control

Claes Breitholtz

Chalmers, Signals and Systems, Systems and control

2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe

Vol. 2017-January 8099178

19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
Warsaw, Poland,

Subject Categories

Other Engineering and Technologies not elsewhere specified

Computer Science

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.23919/EPE17ECCEEurope.2017.8099178

More information

Latest update

12/2/2019