Title :
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
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;
Conference_Titel :
Power Tech, 2007 IEEE Lausanne
Conference_Location :
Lausanne
Print_ISBN :
978-1-4244-2189-3
Electronic_ISBN :
978-1-4244-2190-9
DOI :
10.1109/PCT.2007.4538313
