Load flow control and optimization of Banverket’s 132 kV 16 2/3 Hz high voltage grid
Independent thesis Basic level (professional degree), 20 points / 30 hpStudent thesis
The purpose of this thesis was to investigate the possibility of power flow control, on a section of a railway grid fed by rotary converters, using an extra feeding line. Two possible solutions for the power flow control were examined. The first using a series reactance in connection to each converter station and the second by changing the tap changer level of the transformer between the converter station and the feeding line.
In the two models a distance, comparable to the distance between Boden and Häggvik, in Stockholm, was used. The simulations were performed using the software SIMPOW.
The results from the performed simulations show that series reactances, under the stated conditions, can essentially improve the power flow. To implement this air coils with inductances in the approximate size of 10 to 45 mH could be used. Further, the tap changer levels of the transformer may be used, for individual converter stations, as a way to control the reactive power flow.
Place, publisher, year, edition, pages
2005. , 75 p.
132 kV, rotary converter, load flow, power flow, feeding line, catenary, tap changer, control system, railway, electrification
IdentifiersURN: urn:nbn:se:liu:diva-4583ISRN: LiTH-ISY-EX--05/3727--SEOAI: oai:DiVA.org:liu-4583DiVA: diva2:20646
Schütte, ThorstenGerdin, Markus