Title :
A review of power system voltage and angular stability dynamics
Author :
Pessanha, José E O ; Paucar, V. Leonardo ; Rider, Marcos J.
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Maranhao, Sao Luis, Brazil
Abstract :
This work reviews important concepts related to power system dynamics focusing on voltage stability. Mechanisms inherent to this phenomenon are investigated using an extended transient stability program. Through time domain simulations, it is shown stability scenarios involving under-load tap changers, overexcitation limiters, thermostatically controlled loads, loss of synchronism, partial voltage collapse and total voltage collapse. Remedial actions against voltage collapse are also implemented and tested. The computer simulations are carried out using an equivalent model representing the Brazilian south-southeast power system.
Keywords :
load regulation; power system dynamic stability; power system simulation; power transformers; time-domain analysis; Brazilian south-southeast power system; EHV transformers; VOLTDYN program; computer simulations; equivalent model; extended transient stability program; loss of synchronism; over excitation limiters; partial voltage collapse; power system angular stability dynamics; power system dynamics; power system voltage stability dynamics; thermostatically controlled loads; time domain simulations; total voltage collapse; under-load tap changers; Computational modeling; Computer simulation; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Power system transients; Testing; Thermal stability; Voltage control;
Conference_Titel :
Power System Technology, 2002. Proceedings. PowerCon 2002. International Conference on
Print_ISBN :
0-7803-7459-2
DOI :
10.1109/ICPST.2002.1067817
