Aspects on Power Flow Control by means of a Dynamic Power Flow Controller
(English)Article in journal (Other academic) Submitted
This paper, which is focused on steady-state power flow control, investigates the capability of three different Power Flow Controllers (PFC) to control power flows in two test systems. The studied devices are the Dynamic Power Flow Controller (DPFC), the Phase Shifting Transformer (PST) and the Thyristor Switched Series Capacitor (TSSC). The DPFC is actually a combination of the PST and the TSSC and the study thus attempts to solve the power flow control problems either by a PST, a TSSC or a combination of these devices. The different PFC:s are designed using the Power controller plane where it is possible to decouple the surrounding grid characteristics from the PFC characteristics in a convenient way. It is found that the installation of a PFC can improve the power transfer capacity significantly in the studied test systems. In some of the studied cases, it is found that the power flow control problem can only be solved by a PST or a DPFC. One main conclusion of the study is that a DPFC may be an attractive alternative to a traditional PST installation in some cases due to a lower required rating, a better voltage control capability and a higher speed of control.
Terms—Dynamic power flow controller (DPFC), Flexible ac transmission systems (FACTS), Hybrid flow controller (HFC), Phase shifting transformer (PST), Power controller plane, Power flow control, Thyristor switched series capacitor (TSSC)
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-37913OAI: oai:DiVA.org:kth-37913DiVA: diva2:435645
QS 2011 QS 201203272011-08-192011-08-192012-03-27Bibliographically approved