Fractional frequency transmission system to enhance line loadability in EHVAC & UHVAC long transmission line

Author

Mohan, B.S. ; Shankaralingappa, C.B. ; Prakash, R.

Author_Institution

EEE Dept., Acharya Inst. of Technol., Bangalore, India

fYear

2014

fDate

10-11 Oct. 2014

Firstpage

1

Lastpage

6

Abstract

In this paper comparative analysis is carried out for power transmission, for line of 1200km length at 50Hz and 50/3Hz. Test system of 765kV and 1200kV are selected as two transmission voltage levels. Simulation is carried out on test system over Matlab simulink environment. In steps of 25%, computation of sending & receiving end voltages, active power transfer capacity, power factor and compensation required for 1200km line for variable load of 150% Surge Impedance Loading (SIL). Results shows that, for 50Hz test system, it is not possible to transfer the power without compensation. Also, for FFTS, it is possible to transmit 5 to 6 times the rated power without any compensation.

Keywords

load management; power factor; power transmission lines; surge protection; EHVAC transmission system; FFTS; SIL; UHVAC transmission system; active power transfer capacity; extra high voltage AC transmission system; fractional frequency transmission system; frequency 50 Hz; long power transmission line loadability enhancement; power compensation; power factor; size 1200 km; surge impedance loading; ultra high voltage AC transmission system; voltage 1200 kV; voltage 765 kV; voltage transmission; Load modeling; MATLAB; Mathematical model; Power transmission lines; Reactive power; Voltage measurement; Fractional Frequency Transmission System (FFTS); Voltage profile; frequency converters; long-distance power transfer; reactive power;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Electronics, Computers and Communications (ICAECC), 2014 International Conference on

Conference_Location

Bangalore

Type

conf

DOI

10.1109/ICAECC.2014.7002477

Filename

7002477