On the analysis of the dc dynamics of multi-terminal VSC-HVDC systems using small signal modeling
Paper in proceeding, 2013
In this paper, an analysis of the dc dynamics of multiterminal VSC-HVDC systems using the small signal modeling method is presented. Usually, the VSC controllers are designed under the consideration that they operate independently of each other. However, the possible interactions among them and the dc grid should be studied, especially in multi-terminal topologies. In this paper, three VSC-HVDC systems are modeled and, after linearization, the eigenvalues of the system are calculated for different loading conditions. The results from this analysis are compared to those obtained from more detailed models using PSCAD. It is shown that the operating point, the gains of the direct-voltage controller and the cable dynamics have an impact on the system performance.
dc dynamics
small signal analysis
eigenvalues
Multi-terminal VSC-HVDC system
control systems
Author
Gustavo Pinares
Chalmers, Energy and Environment, Electric Power Engineering
Lina Bertling Tjernberg
Chalmers, Energy and Environment, Electric Power Engineering
Anh Tuan Le
Chalmers, Energy and Environment, Electric Power Engineering
Claes Breitholtz
Chalmers, Signals and Systems, Systems and control
Abdel-Aty Edris
Quanta Technology LLC
2013 IEEE Grenoble Conference PowerTech, POWERTECH 2013; Grenoble; France; 16 June 2013 through 20 June 2013
Art. no. 6652303-
978-1-4673-5667-1 (ISBN)
Areas of Advance
Energy
Subject Categories (SSIF 2011)
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/PTC.2013.6652303
ISBN
978-1-4673-5667-1