On-line voltage stability monitoring of large power systems

Author

Chiang, Hsiao-Dong ; Li, Hua ; Tong, Jianzhong ; Causgrove, Patrick

Author_Institution

ECE, Cornell Univ., Ithaca, NY, USA

fYear

2011

Firstpage

1

Lastpage

6

Abstract

An on-line tool developed for voltage stability analysis and enhancement (VSA&E) of large-scale power systems is presented in this paper. The tool has several major functions related to voltage security assessment, load margin calculations, contingency analysis, fast identification of insecure contingencies and critical contingencies, development of preventive control against insecure contingencies and development of enhancement control for increasing load margins for critical contingencies. The parallel version of this tool currently handles on-line models of 20-000 buses with the contingency list in the order of thousand. Some analytical results behind this tool are described.

Keywords

distribution networks; power system stability; preventive maintenance; voltage control; contingency analysis; enhancement control; insecure contingency; large scale power system; load margin calculation; on-line voltage stability monitoring; preventive control; voltage security assessment; Bifurcation; Generators; Power system stability; Reactive power; Security; Stability analysis; Voltage control; contingency; contingency list; on-line monitoring; power networks; static property; voltage stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2011 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4577-1000-1

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PES.2011.6039499

Filename

6039499