Undervoltage Load Shedding Using Global Voltage Collapse Index (CROSBI ID 497277)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Klarić, Mario ; Kuzle, Igor ; Tešnjak, Sejid
engleski
Undervoltage Load Shedding Using Global Voltage Collapse Index
Increasingly higher demand in power created problems in power system operation since the growth of the transmission system is restricted. System often function close to their stability limits and sometimes loads need to be shed in order to prevent system from collapsing. In this paper one undervoltage load shedding (UVLS) method to prevent voltage collapse is presented. This method is based on a global index which indicates voltage collapse proximity and voltage magnitudes on critical buses. Global index for voltage collapse proximity determination is calculated based on power flow Jacobian matrix operations. Considering that on the voltage stability limit Jacobian matrix becomes singular, it cannot be inverted. Therefore method involving eigenvalue calculation is used here. IEEE 14 bus system was used as a numerical example which showed how loads and system in general can be saved from voltage collapse using UVLS.
voltage stability; voltage collapse; undervoltage load shedding; global index; Jacobian matrix
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Podaci o prilogu
2004.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 2004 Power Systems Conference and Exposition (PSCE'04)
New York (NY): Institute of Electrical and Electronics Engineers (IEEE)
Podaci o skupu
2004 Power Systems Conference and Exposition
predavanje
10.10.2004-13.10.2004
Sjedinjene Američke Države