DocumentCode :
2484503
Title :
Impact of power system instability on generator protection
Author :
Mozina, Charles J.
Author_Institution :
Beckwith Electr. Co., Largo, FL, USA
fYear :
2012
fDate :
20-24 May 2012
Firstpage :
1
Lastpage :
8
Abstract :
Recent system instability events have interacted with both transmission and generation protection in ways not always envisioned by the protection engineer. This paper discusses what relay engineers need to know about power system stability, including the four basic types of power system instability: Voltage instability, Steady-state instability, Transient instability and Dynamic instability. The paper relates how these various forms of instability relate to generator and transmission system protection. The paper also discuss system schemes used to address instability including: Generator Fast Valving, Generator Tripping, Generator High-speed Excitation Systems, Independent Pole Circuit Breaker applications and various types of Special Protection Schemes (SPS).
Keywords :
electric generators; machine protection; power system stability; power transmission protection; SPS; dynamic instability; generator fast valving; generator high-speed excitation systems; generator system protection; generator tripping; independent pole circuit breaker applications; power system instability; protection engineer; relay engineers; special protection schemes; steady-state instability; transient instability; transmission system protection; voltage instability; Generators; Load flow; Power system stability; Steady-state; Transient analysis; Voltage measurement; dynamic instability; independent pole tripping; out-of-step tripping; steady-state instability; transient instability; voltage instability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial & Commercial Power Systems Technical Conference (I&CPS), 2012 IEEE/IAS 48th
Conference_Location :
Louisville, KY
ISSN :
2158-4893
Print_ISBN :
978-1-4673-0652-2
Type :
conf
DOI :
10.1109/ICPS.2012.6229613
Filename :
6229613
Link To Document :
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