Carlos E Murillo-Sanchez

Publications (35) View all

• Source

  Available from: cornell.edu

  Conference Proceeding: MATPOWER's extensible optimal power flow architecture

  R.D. Zimmerman, C.E. Murillo-Sanchez, R.J. Thomas
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  ABSTRACT: This paper describes the optimal power flow (OPF) architecture implemented in MATPOWER, an open-source Matlab power system simulation package. It utilizes an extensible architecture that allows the user to easily add new variables, constraints and costs to the standard OPF problem formulation while preserving the structure needed to use pre-compiled solvers. A software object is used to encapsulate the definition of the problem formulation, manage the corresponding named sets of variables, constraints and costs, and handle all of the tedious index maintenance tasks. The software design has the advantage of minimizing the coupling between variables, constraints and costs, making it possible, for example, to add variables to an existing model without having to explicitly modify existing constraints or costs to accommodate them. The example of adding joint co-optimization of reserves to the OPF, based on fixed zonal reserve requirements, is used to illustrate the capabilities of MATPOWER's extensible OPF architecture.
  Power & Energy Society General Meeting, 2009. PES '09. IEEE; 08/2009
• Conference Proceeding: An advanced security constrained OPF that produces correct market-based pricing

  R.J. Thomas, C.E. Murillo-Sanchez, R.D. Zimmerman
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  ABSTRACT: Security constrained optimal power flow programs are important tools for ensuring correct dispatch of supply while respecting the many constraints imposed by the delivery system. In addition to getting the dispatch right, locational prices must be calculated with equal precision in order to infuse market participants with the proper incentives for operation and investment. In this paper we discuss a co-optimization framework in which contingencies, ancillary services, and network constraints are correctly accounted for in determining both dispatch and price.
  Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE; 08/2008
• Source

  Available from: psu.edu

  Conference Proceeding: Parallel processing implementation of the unit commitment problem with full AC power flow constraints

  C.E. Murillo-Sanchez, R.J. Thomas
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  ABSTRACT: The authors describe a parallel implementation of the Lagrangian Relaxation Algorithm with variable duplication for the thermal unit commitment problem. The formulation was previously reported by the authors and allows inclusion of the full nonlinear AC network power flow model, which permits addressing voltage limits, as well as more realistic branch flow limits than is possible with a linear DC flow model. Thus, potential VAr production can be used as another criterion for commitment of otherwise expensive generators in strategic locations. The algorithm is highly parallelizable, and the authors have taken advantage of this in a version currently being developed for the Cornell Theory Center's Velocity AC3 NT cluster.
  System Sciences, 2000. Proceedings of the 33rd Annual Hawaii International Conference on; 02/2000
• Conference Proceeding: Parallel Processing Implementation of the Unit Commitment Problem with Full AC Power Flow Constraints.

  Carlos Murillo-Sánchez, Robert J. Thomas
  01/2000
• Source

  Available from: wisc.edu

  Conference Proceeding: An Internet-based platform for testing generation scheduling auctions

  R.D. Zimmerman, R.J. Thomas, Deqiang Gan, C. Murillo-Sanchez
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  ABSTRACT: The paper describes the uses and architecture of a network-centered computing-rich software platform called PowerWeb. PowerWeb was designed and built as a simulation environment for experimentally testing various power exchange auction markets through tournaments. It is designed to host simulations of a competitive “day-ahead” electric energy market in the content of a restructured electric power industry. The PowerWeb environment is meant to be flexible so as to accommodate different “rules of the game”. The authors describe its interactive, distributed and Web-based character
  System Sciences, 1998., Proceedings of the Thirty-First Hawaii International Conference on; 02/1998