TY - GEN
T1 - Transmission Network Expansion Planning
T2 - 2014 Power Systems Computation Conference, PSCC 2014
AU - Bent, Russell
AU - Coffrin, Carleton
AU - Gumucio, Rodrigo R.E.
AU - Van Hentenryck, Pascal
N1 - Publisher Copyright:
© 2014 Power Systems Computation Conference.
PY - 2014/2/10
Y1 - 2014/2/10
N2 - It was recently observed that a significant gap exists between the costs of Transmission Network Expansion Planning (TNEP) solutions produced by the DC power flow approximation and AC power flow heuristics. This paper confirms the existence of that gap and shows that DC-based TNEP solutions exhibit significant constraint violations when converted into AC power flows. The paper then demonstrates how to bridge this gap with the LPAC power flow model, a linear-programming approximation of the power flow that captures reactive power and voltage magnitudes. Indeed, LPAC-based TNEP solutions have minimal violations in AC power flows and provide high-quality solutions. The strength of the LPAC formulation is further demonstrated on the joint optimization of line expansion and VAr compensation, as well as a competitive market study. These studies suggest that the underling TNEP formulation has significant impacts on the proposed expansion plans.
AB - It was recently observed that a significant gap exists between the costs of Transmission Network Expansion Planning (TNEP) solutions produced by the DC power flow approximation and AC power flow heuristics. This paper confirms the existence of that gap and shows that DC-based TNEP solutions exhibit significant constraint violations when converted into AC power flows. The paper then demonstrates how to bridge this gap with the LPAC power flow model, a linear-programming approximation of the power flow that captures reactive power and voltage magnitudes. Indeed, LPAC-based TNEP solutions have minimal violations in AC power flows and provide high-quality solutions. The strength of the LPAC formulation is further demonstrated on the joint optimization of line expansion and VAr compensation, as well as a competitive market study. These studies suggest that the underling TNEP formulation has significant impacts on the proposed expansion plans.
KW - AC Power Flow
KW - DC Power Flow
KW - LPAC Power Flow
KW - Nonlinear Programming
KW - Optimization methods
KW - Power System Planning
UR - http://www.scopus.com/inward/record.url?scp=84946688128&partnerID=8YFLogxK
U2 - 10.1109/PSCC.2014.7038299
DO - 10.1109/PSCC.2014.7038299
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.
Y2 - 18 August 2014 through 22 August 2014
ER -