DC Optimal Power Flow Formulation and Solution Using QuadProgJ
Nonlinear AC Optimal Power Flow (OPF) problems are commonly approximated by linearized DC OPF problems to obtain real power solutions for restructured wholesale power markets. We first present a standard DC OPF problem, which has the numerically desirable form of a strictly convex quadratic programming (SCQP) problem when voltage angles are eliminated by substitution. We next augment this standard DC OPF problem in a physically meaningful way, still retaining an SCQP form, so that solution values for voltage angles and locational marginal prices are directly obtained along with real power injections and branch flows. We then show how this augmented DC OPF problem can be solved using QuadProgJ, an open-source Java SCQP solver newly developed by the authors that implements the well-known dual active-set SCQP algorithm by Goldfarb and Idnani (1983). To demonstrate the accuracy of QuadProgJ, comparative results are reported for a well-known suite of numerical QP test cases with up to 1500 decision variables plus constraints. Detailed QuadProgJ results are also reported for 3-node and 5-node DC OPF test cases taken from power systems texts and ISO-NE/MISO/PJM training manuals. Related work can be accessed at: http://www.econ.iastate.edu/tesfatsi/AMESMarketHome.htm
|Date of creation:||30 Mar 2006|
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- Koesrindartoto, Deddy P. & Tesfatsion, Leigh, 2004. "Testing the Reliability of FERC's Wholesale Power Market Platform: An Agent-Based Computational Economics Approach," Staff General Research Papers 12326, Iowa State University, Department of Economics.
- Paul L. Joskow, 2006.
"Markets for Power in the United States: An Interim Assessment,"
The Energy Journal,
International Association for Energy Economics, vol. 0(Number 1), pages 1-36.
- Paul L. Joskow, 2005. "Markets For Power In The United States - An Interim Assessment," Working Papers 0512, Massachusetts Institute of Technology, Center for Energy and Environmental Policy Research.
- Deddy Koesrindartoto & Junjie Sun, 2005.
"An Agent-Based Computational Laboratory for Testing the Economic Reliability of Wholesale Power Market Designs,"
Computing in Economics and Finance 2005
50, Society for Computational Economics.
- Koesrindartoto, Deddy P. & Sun, Junjie & Tesfatsion, Leigh, 2005. "An Agent-Based Computational Laboratory for Testing the Economic Reliability of Wholesale Power Market Designs," Staff General Research Papers 12388, Iowa State University, Department of Economics.
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