Abstract
It is very important to maintain supply reliability in the deregulated environment. The transient stability problem is one of the major concerns in studies of planning and operation of power systems. Time domain simulation is currently the best available tool for allowing the use of detailed models and for providing reliable results. The main limitations of this approach involve long computation times. Therefore, this paper proposes a transient stability evaluation method using minimum transient kinetic energy of postfault trajectories. This method can estimate critical clearing times with only two points of the minimum transient kinetic energy, regardless of whether the trajectories after the clearing time are stable or unstable. The validity of the proposed method is shown by simulation studies with the IEEJ EAST 10-machine 47-bus system.
| Original language | English |
|---|---|
| Pages (from-to) | 18-24 |
| Number of pages | 7 |
| Journal | Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi) |
| Volume | 174 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2011 Feb |
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Keywords
- critical clearing time
- kinetic energy
- power system
- transient energy function
- transient stability
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
Cite this
Transient stability evaluation method based on kinetic energy of postfault trajectories. / Okuda, Takahiro; Nakagawa, Shinichi; Ohsaki, Yuta; Iwamoto, Shinichi.
In: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), Vol. 174, No. 3, 02.2011, p. 18-24.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transient stability evaluation method based on kinetic energy of postfault trajectories
AU - Okuda, Takahiro
AU - Nakagawa, Shinichi
AU - Ohsaki, Yuta
AU - Iwamoto, Shinichi
PY - 2011/2
Y1 - 2011/2
N2 - It is very important to maintain supply reliability in the deregulated environment. The transient stability problem is one of the major concerns in studies of planning and operation of power systems. Time domain simulation is currently the best available tool for allowing the use of detailed models and for providing reliable results. The main limitations of this approach involve long computation times. Therefore, this paper proposes a transient stability evaluation method using minimum transient kinetic energy of postfault trajectories. This method can estimate critical clearing times with only two points of the minimum transient kinetic energy, regardless of whether the trajectories after the clearing time are stable or unstable. The validity of the proposed method is shown by simulation studies with the IEEJ EAST 10-machine 47-bus system.
AB - It is very important to maintain supply reliability in the deregulated environment. The transient stability problem is one of the major concerns in studies of planning and operation of power systems. Time domain simulation is currently the best available tool for allowing the use of detailed models and for providing reliable results. The main limitations of this approach involve long computation times. Therefore, this paper proposes a transient stability evaluation method using minimum transient kinetic energy of postfault trajectories. This method can estimate critical clearing times with only two points of the minimum transient kinetic energy, regardless of whether the trajectories after the clearing time are stable or unstable. The validity of the proposed method is shown by simulation studies with the IEEJ EAST 10-machine 47-bus system.
KW - critical clearing time
KW - kinetic energy
KW - power system
KW - transient energy function
KW - transient stability
UR - http://www.scopus.com/inward/record.url?scp=78649874652&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78649874652&partnerID=8YFLogxK
U2 - 10.1002/eej.21018
DO - 10.1002/eej.21018
M3 - Article
VL - 174
SP - 18
EP - 24
JO - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
JF - Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
SN - 0424-7760
IS - 3
ER -