PhD defence by Qian Wang on Experimental Investigation on Electrical Behaviors of an Innovative 400-kV Double-Circuit Composite Tower
01.10.2018 kl. 13.00 - 16.00
Qian Wang, Department of Energy Technology, will defend the thesis "Experimental Investigation on Electrical Behaviors of an Innovative 400-kV Double-Circuit Composite Tower".
Experimental Investigation on Electrical Behaviors of an Innovative 400-kV Double-Circuit Composite Tower
Professor Claus L. Bak
Associate Professor JayaKrishnan Pillai
Professor Birgitte Bak-Jensen, Dept. of Energy Technology, Aalborg University (Chairman)
Professor Carlo Alberto Nucci, University of Bologna, Italy
Professor Peter Vaessen, TUDelft, Vaessen, The Netherlands
In order to meet the requirement for installing new environmental-friendly overhead lines (OHLs), the project titled ’Power Pylons of the Future (PoPyFu)’ started in 2013. PoPyFu targets developing an innovative composite material-based transmission tower with reduced visual impact, compact configuration, good power transmission capacity and competitive cost, satisfying the increasing demand for new OHLs in Denmark as well as in other countries. The present PhD work displays one of the four PhD research works in PoPyFu that are required to evaluate and develop the design of the ’Y’ tower from electrical and mechanical point of view.
The present research work focuses on validating the initial electrical design of the composite ’Y’ tower with high voltage experimental methods. Four prioritized research questions regarding the composite ‘Y’ tower’s electrical design are studied. Firstly, two kinds of candidate FRP materials are tested electrically and their important properties are evaluated. Also, three manufacturing methods for FRP materials are compared and the filament winding method is recommended to the material supplier. Secondly, a water-induced corona discharge setup is designed, with which a corona test is performed on an equivalent full-scale composite cross-arm segment in wet conditions, in order to assess the E-field magnitude on the composite cross-arm. Thirdly, a scale model test is performed in order to evaluate the lightning protection performance of the shield wires. Finally, the suitability of the initial designed cross-arm inclined angle from the ground plane is investigated. On the basis of test results obtained in the present research work, the initial design of the composite ‘Y’ tower proposed by PoPyFu is evaluated and feasible improving measures are put forward. The experimental methods developed in the present PhD work and corresponding conclusions are of great important for the development of the composite ‘Y’ tower.
DOWNLOAD AS A PDF
ALL ARE WELCOME. THE DEFENCE WILL BE IN ENGLISH.
AFTER THE DEFENCE THERE WILL BE AN INFORMAL RECEPTION AT PONTOPPIDANSTRAEDE 111 IN ThE COFFEE ROOM.
Department of Energy Technology
Pontoppidanstræde 105, room 4.127