Designing power flow control devices using the power controller plane: An improved method
(English)Article in journal (Other academic) Submitted
This paper introduces an improved method for design of Power Flow Controllers (PFC) in the power controller plane where the active power of the PFC line is plotted versus the difference in voltage angle between the PFC terminals. The power controller plane makes it possible to graphically visualize the working area of a PFC in a power grid and thus determine the grid situations which are dimensioning for the PFC. The paper extends the existing methods for design of PFC:s in the power controller plane by introducing a method to decouple the power grid- and PFC characteristics in a power system of arbitrary size. With this approach, it is possible to graphically compare and design PFC:s of different types and with different characteristics in the same plot by simple geometrical considerations. The method is intended to provide additional insight into how the power flow control capabilities of different PFC:s depend on the selected PFC characteristics and the grid conditions. Additionally, the method has the potential to simplify the process for selection and design of a PFC. The paper includes a study of the accuracy of the proposed method in two test systems of different complexity.
Flexible ac transmission systems (FACTS), 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-37916OAI: oai:DiVA.org:kth-37916DiVA: diva2:435655
QS 2011 QS 201203272011-08-192011-08-192012-03-27Bibliographically approved