Naslov
Undervoltage Load Shedding Using Global Voltage Collapse Index

Autori
Klarić, Mario ; Kuzle, Igor ; Tešnjak, Sejid

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 2004 Power Systems Conference and Exposition (PSCE'04) / - New York (NY) : Institute of Electrical and Electronics Engineers (IEEE), 2004

Skup
2004 Power Systems Conference and Exposition

Mjesto i datum
Sjedinjene Američke Države, 10.10.2004. - 13.10.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
voltage stability; voltage collapse; undervoltage load shedding; global index; Jacobian matrix

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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