Voltage stability analysis of multi-infeed HVDC systems using small-signal stability assessment

Author

Shao, Y. ; Tang, Y.

Author_Institution

Electr. Power Res. Inst. of China, Beijing, China

fYear

2010

fDate

19-22 April 2010

Firstpage

1

Lastpage

6

Abstract

This paper presents an analysis of multi-infeed HVDC systems voltage stability using small-signal analysis techniques (eigen-structure analysis). A correlation ratio relating to voltage stability is put forward. A small test system with two HVDC infeeds is built to study the voltage stability of the multi-infeed HVDC system. Then the detailed dynamic models of the HVDC system including DC system control model, the generator, the induction motor load and the ac network are investigated. The case studies presented in this paper indicate that the voltage stability correlation ratio (VSCR) can effectively identify the critical elements which strongly correlate with voltage stability in multi-infeed HVDC systems.

Keywords

Control systems; Eigenvalues and eigenfunctions; HVDC transmission; Power system dynamics; Power system modeling; Power system stability; Stability analysis; System testing; Transmission line matrix methods; Voltage control; eigen-structure analysis; multi-infeed HVDC system; voltage stability; voltage stability correlation ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exposition, 2010 IEEE PES

Conference_Location

New Orleans, LA, USA

Print_ISBN

978-1-4244-6546-0

Type

conf

DOI

10.1109/TDC.2010.5484473

Filename

5484473