TY - JOUR
T1 - The evaluation of stochastic available transfer capability
AU - Stahlhut, Jonathan W.
AU - Heydt, Gerald T.
N1 - Funding Information:
Received 18 April 2006; accepted 19 September 2006. This work was supported in part by the Power System Engineering Research Center (PSerc) under grant NSF EEC-0001880 received under the Industry/University Cooperative Research Center program. J. W. Stahlhut is with the Fulton School of Engineering, Arizona State University, Tempe, AZ 85281 USA. E-mail: jonathan.stahlhut@asu.edu G. T. Heydt is with the Fulton School of Engineering, Arizona State University, Tempe, AZ 85281 USA. E-mail: heydt@asu.edu Address correspondence to Prof. Gerald T. Heydt, Power Systems Research Center, P.O. Box 875706, Tempe, AZ.
PY - 2007/4
Y1 - 2007/4
N2 - Due to uncertainty in bus loading, the evaluation of the available transfer capability (ATC) between two points in a network also becomes uncertain. The ATC is a measure of 'available capacity' in a power transmission system beyond already committed uses, i.e., beyond base case loading. A stochastic power flow algorithm can be used to help quantify and evaluate the uncertainty of the ATC. The limitations considered in the stochastic ATC algorithm are: circuit stability limits, transmission line thermal rating limits, and bus voltage magnitude limits. Transmission circuit outages, while important and also of a stochastic nature, are not considered. The analytical calculation of stochastic ATC is described and tested using the WECC 179 bus system. The analytical calculation is compared to a computationally intensive Monte Carlo calculation. The value of stochastic modeling of ATC relates to a realistic evaluation of power exchange.
AB - Due to uncertainty in bus loading, the evaluation of the available transfer capability (ATC) between two points in a network also becomes uncertain. The ATC is a measure of 'available capacity' in a power transmission system beyond already committed uses, i.e., beyond base case loading. A stochastic power flow algorithm can be used to help quantify and evaluate the uncertainty of the ATC. The limitations considered in the stochastic ATC algorithm are: circuit stability limits, transmission line thermal rating limits, and bus voltage magnitude limits. Transmission circuit outages, while important and also of a stochastic nature, are not considered. The analytical calculation of stochastic ATC is described and tested using the WECC 179 bus system. The analytical calculation is compared to a computationally intensive Monte Carlo calculation. The value of stochastic modeling of ATC relates to a realistic evaluation of power exchange.
KW - Available transfer capability
KW - Monte Carlo simulation
KW - Power marketing
KW - Random processes
KW - Stochastic systems
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U2 - 10.1080/15325000601023639
DO - 10.1080/15325000601023639
M3 - Article
AN - SCOPUS:33847112046
SN - 1532-5008
VL - 35
SP - 393
EP - 410
JO - Electric Power Components and Systems
JF - Electric Power Components and Systems
IS - 4
ER -