An Extended OPF Incorporating Multi-Terminal VSC-HVDC and Its Application on Transmission Loss Evaluation
Rapport, 2013

This paper summarizes the main results from (Wang 2013), which propose an extension of the traditional ac Optimal Power Flow (OPF) model to incorporate the Voltage Source Converter based Multi-terminal High Voltage Direct Current system (VSC-MTDC). The detailed VSC-MTDC system model is included in the extended OPF. A case study using the proposed M-OPF model and the Nordic 32-bus system evaluates the contribution of the embedded VSC-MTDC system on the overall system loss reduction. The study results show that the overall system loss of an ac transmission grid is not necessarily reduced by embedding a VSC- MTDC system into it. The reduction of the system loss by embedded VSC-MTDC system depends on their configurations and locations, and the VSC station loss ratio as well. (Wang 2013) F. Wang, T. Le, L. Bertling Tjernberg, A. Mannikoff, and A. Bergman, "An Extended OPF Incorporating Multi-Terminal 0.9 VSC-HVD1C.8 and1.6its A1p.4plic1a.2tion o1 n Tr0a.8nsm0i.s6sion Loss Evaluation," PowerTech2013, Grenoble, France, June. 2013.

multi-terminal HVDC

voltage source converter

electric power system



Feng Wang

Chalmers, Energi och miljö, Elkraftteknik

Anh Tuan Le

Chalmers, Energi och miljö, Elkraftteknik

Lina Bertling Tjernberg

Chalmers, Energi och miljö

Vol. Maj 2-


Hållbar utveckling


Annan teknik

Elektroteknik och elektronik