Impact of Cascading Circuit Outages On Low Frequency Oscillations of Power Systems

Author

Wang, Lei

Author_Institution

Powertech Labs Inc., Surrey, BC

fYear

2005

fDate

2005

Firstpage

1

Lastpage

6

Abstract

This paper presents a method of assessing the impact of cascading circuit outages on low frequency interarea oscillations of power systems. An overall damping index (ODI) is defined as a measure of severity of post-contingency system conditions in terms of small signal stability. This is then used to identify the critical path for the assessment of cascading circuit outages. The method is illustrated with an example using a full model of the Western Electricity Coordinating Council (WECC) system

Keywords

power system security; power system stability; WECC system; Western Electricity Coordinating Council; cascading circuit outages; low-frequency interarea oscillations; overall damping index; post-contingency system conditions; power system security; power systems; small signal stability; Circuit stability; Damping; Frequency; Power grids; Power system measurements; Power system modeling; Power system reliability; Power system stability; Power systems; Security; Cascading outages; Interarea modes; Low frequency oscillations; Small signal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES

Conference_Location

Dalian

Print_ISBN

0-7803-9114-4

Type

conf

DOI

10.1109/TDC.2005.1546748

Filename

1546748