Voltage Stability of AC-DC Interconnections As Affected by AC Line Length

Author

Folly, K.A. ; Mukusuka, J.K.

Author_Institution

Dept. of Electr. Eng., Univ. of Cape Town, Cape Town

fYear

2007

Firstpage

178

Lastpage

183

Abstract

This paper investigates the influence of AC line strength on the voltage stability of interconnected AC/DC system. It is shown that a weak AC transmission line coupled with a relatively heavy loading can have a negative impact on the voltage stability of the interconnected AC/DC system. Static voltage stability of the modified two-area, four-generator power system is investigated using both sensitivity analysis and eigenvalue analysis. The analytical results are verified using time domain simulations.

Keywords

DC transmission networks; eigenvalues and eigenfunctions; power system interconnection; power transmission lines; time-domain analysis; AC line length; AC transmission line; AC-DC interconnections; eigenvalue analysis; four-generator power system; interconnected AC-DC system; static voltage stability; time domain simulations; Couplings; Eigenvalues and eigenfunctions; Power system analysis computing; Power system interconnection; Power system simulation; Power system stability; Power transmission lines; Sensitivity analysis; Stability analysis; Voltage; AC/DC systems; modal analysis; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech, 2007 IEEE Lausanne

Conference_Location

Lausanne

Print_ISBN

978-1-4244-2189-3

Electronic_ISBN

978-1-4244-2190-9

Type

conf

DOI

10.1109/PCT.2007.4538313

Filename

4538313