DocumentCode :
1865213
Title :
Facts based fault current limiter utilization in HV grid
Author :
Golshani, Amir ; Khakpour, A. ; Hofmann, Lutz
Author_Institution :
Dept. of Electr. Eng., K.N.T. Univ. of Technol., Tehran, Iran
fYear :
2012
fDate :
April 29 2012-May 2 2012
Firstpage :
1
Lastpage :
6
Abstract :
Future´s load and generation model of Tehran power network depicts fast increase in demand and development of power network. By 2015, Two new generating stations are expected to be installed which result in the increase of short-circuit capacity of a few substations in excess of the interrupting rating of exiting circuit breakers. This paper intends to analyze the consequences of employing thyristor protected series capacitor (TPSC) based short-circuit current limiter (SCCL) in Tehran power grid. Short-circuit, transient stability and transient recovery voltage studies were carried out by using DIgSILENT and EMTP softwares. The results demonstrate that SCCL installation can reduce fault current level in four substations of Tehran power network and improve transient stability margins. On the other hand, rate of rise of recovery voltage across some circuit breakers will exceed the value specified in standard which can be coped with by adding extra capacitor.
Keywords :
circuit breakers; electric power generation; fault current limiters; flexible AC transmission systems; power capacitors; power grids; power system transient stability; power transmission protection; power utilisation; short-circuit currents; substations; thyristor applications; DIgSILENT software; EMTP software; FACTS based fault current limiter utilization; HV grid; SCCL; TPSC; Tehran power grid network; circuit breaker; generation model; load model; short-circuit current limiter; substation; thyristor protected series capacitor; transient recovery voltage; transient stability margin; Circuit breakers; Circuit faults; Power system stability; Stability analysis; Substations; Transient analysis; FACTs; TRV; fault current limiter; short-circuit; transient stability;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical & Computer Engineering (CCECE), 2012 25th IEEE Canadian Conference on
Conference_Location :
Montreal, QC
ISSN :
0840-7789
Print_ISBN :
978-1-4673-1431-2
Electronic_ISBN :
0840-7789
Type :
conf
DOI :
10.1109/CCECE.2012.6334818
Filename :
6334818
Link To Document :
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