Title :
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
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;
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6039499
