On the analysis of the dc dynamics of multi-terminal VSC-HVDC systems using small signal modeling
Paper i 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


Multi-terminal VSC-HVDC system

control systems


Gustavo Pinares

Chalmers, Energi och miljö, Elkraftteknik

Lina Bertling Tjernberg

Chalmers, Energi och miljö, Elkraftteknik

Anh Tuan Le

Chalmers, Energi och miljö, Elkraftteknik

Claes Breitholtz

Signaler och system, System- och reglerteknik, Reglerteknik

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-




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