Title :
Impact of Cascading Circuit Outages On Low Frequency Oscillations of Power Systems
Author_Institution :
Powertech Labs Inc., Surrey, BC
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;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1546748
