Abstract
This paper provides an integrated algorithm to identify a cutset for a large power system for the application of a slow coherency based controlled islanding scheme. Controlled islanding is employed as a corrective measure of last resort to prevent cascading outages caused by large disturbances. The large scale power system is represented as a graph and a simplification algorithm is used to reduce the complexity of the system. Generators belonging to the same slowly coherent group are collapsed into a dummy node, and a graph partition library is used to split the graph into a given number of parts. Some extra islands formed by the partition library are merged into their adjacent large islands and the original cutset of the actual power system is recovered from the highly simplified graph. A software package was developed to test the efficiency of the algorithm, and dynamic simulations were run on the WECC system to verify the effectiveness of the cutset obtained. The WECC system has more than 15000 buses and 2300 generators. Detailed steps to develop an islanding strategy for a specified contingency for a large system are described in this paper.
| Original language | English (US) |
|---|---|
| Article number | 5325878 |
| Pages (from-to) | 877-884 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Power Systems |
| Volume | 25 |
| Issue number | 2 |
| DOIs | |
| State | Published - May 2010 |
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Keywords
- Controlled islanding
- Cutset identification
- Dynamic simulation in the WECC system
- Slow coherency
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
Cite this
Slow coherency based cutset determination algorithm for large power systems. / Xu, Guangyue; Vittal, Vijay.
In: IEEE Transactions on Power Systems, Vol. 25, No. 2, 5325878, 05.2010, p. 877-884.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Slow coherency based cutset determination algorithm for large power systems
AU - Xu, Guangyue
AU - Vittal, Vijay
PY - 2010/5
Y1 - 2010/5
N2 - This paper provides an integrated algorithm to identify a cutset for a large power system for the application of a slow coherency based controlled islanding scheme. Controlled islanding is employed as a corrective measure of last resort to prevent cascading outages caused by large disturbances. The large scale power system is represented as a graph and a simplification algorithm is used to reduce the complexity of the system. Generators belonging to the same slowly coherent group are collapsed into a dummy node, and a graph partition library is used to split the graph into a given number of parts. Some extra islands formed by the partition library are merged into their adjacent large islands and the original cutset of the actual power system is recovered from the highly simplified graph. A software package was developed to test the efficiency of the algorithm, and dynamic simulations were run on the WECC system to verify the effectiveness of the cutset obtained. The WECC system has more than 15000 buses and 2300 generators. Detailed steps to develop an islanding strategy for a specified contingency for a large system are described in this paper.
AB - This paper provides an integrated algorithm to identify a cutset for a large power system for the application of a slow coherency based controlled islanding scheme. Controlled islanding is employed as a corrective measure of last resort to prevent cascading outages caused by large disturbances. The large scale power system is represented as a graph and a simplification algorithm is used to reduce the complexity of the system. Generators belonging to the same slowly coherent group are collapsed into a dummy node, and a graph partition library is used to split the graph into a given number of parts. Some extra islands formed by the partition library are merged into their adjacent large islands and the original cutset of the actual power system is recovered from the highly simplified graph. A software package was developed to test the efficiency of the algorithm, and dynamic simulations were run on the WECC system to verify the effectiveness of the cutset obtained. The WECC system has more than 15000 buses and 2300 generators. Detailed steps to develop an islanding strategy for a specified contingency for a large system are described in this paper.
KW - Controlled islanding
KW - Cutset identification
KW - Dynamic simulation in the WECC system
KW - Slow coherency
UR - http://www.scopus.com/inward/record.url?scp=77951667150&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951667150&partnerID=8YFLogxK
U2 - 10.1109/TPWRS.2009.2032421
DO - 10.1109/TPWRS.2009.2032421
M3 - Article
AN - SCOPUS:77951667150
VL - 25
SP - 877
EP - 884
JO - IEEE Transactions on Power Systems
JF - IEEE Transactions on Power Systems
SN - 0885-8950
IS - 2
M1 - 5325878
ER -