TY - GEN
T1 - Primal and dual bounds for Optimal Transmission Switching
AU - Coffrin, Carleton
AU - Hijazi, Hassan L.
AU - Lehmann, Karsten
AU - Van Hentenryck, Pascal
N1 - Publisher Copyright:
© 2014 Power Systems Computation Conference.
PY - 2014/2/10
Y1 - 2014/2/10
N2 - It has been suggested that Optimal Transmission Switching (OTS) may reduce generator dispatch costs by as much as 10%, saving millions of dollars annually. However, this conclusion has been deduced primarily from studies using the DC power flow approximation on two power networks derived from the IEEE 118-bus and RTS-96 cases. This paper is a systematic study of the OTS problem. Various OTS formulations are considered for computing primal and dual bounds on a variety of power networks. The results demonstrate that the DC power flow model is inadequate for solving the OTS problem, and that mixed-integer nonlinear optimization techniques are instrumental in finding high-quality primal and dual bounds. The paper also indicates that, on a variety of benchmarks, transmission line switching may bring generation cost reductions between 0% to 29%.
AB - It has been suggested that Optimal Transmission Switching (OTS) may reduce generator dispatch costs by as much as 10%, saving millions of dollars annually. However, this conclusion has been deduced primarily from studies using the DC power flow approximation on two power networks derived from the IEEE 118-bus and RTS-96 cases. This paper is a systematic study of the OTS problem. Various OTS formulations are considered for computing primal and dual bounds on a variety of power networks. The results demonstrate that the DC power flow model is inadequate for solving the OTS problem, and that mixed-integer nonlinear optimization techniques are instrumental in finding high-quality primal and dual bounds. The paper also indicates that, on a variety of benchmarks, transmission line switching may bring generation cost reductions between 0% to 29%.
KW - AC Power Flow
KW - DC Power Flow
KW - Mixed-Integer Nonlinear Programming
KW - Optimal Power Flow
KW - Optimal Transmission Switching
UR - http://www.scopus.com/inward/record.url?scp=84946689573&partnerID=8YFLogxK
U2 - 10.1109/PSCC.2014.7038446
DO - 10.1109/PSCC.2014.7038446
M3 - Conference contribution
T3 - Proceedings - 2014 Power Systems Computation Conference, PSCC 2014
BT - Proceedings - 2014 Power Systems Computation Conference, PSCC 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 Power Systems Computation Conference, PSCC 2014
Y2 - 18 August 2014 through 22 August 2014
ER -