Combinatorial optimization model and MIP formulation for the structural analysis of conditional differential-algebraic systems

  • Authors:
  • Mathieu Lacroix;A. Ridha Mahjoub;Sébastien Martin

  • Affiliations:
  • LAMSADE, Université Paris-Dauphine, Place du Maréchal De Lattre De Tassigny, 75775 Paris Cedex 16, France and LIMOS, Université Blaise Pascal Clermont-Ferrand II, Complexe Scientifi ...;LAMSADE, Université Paris-Dauphine, Place du Maréchal De Lattre De Tassigny, 75775 Paris Cedex 16, France;LAMSADE, Université Paris-Dauphine, Place du Maréchal De Lattre De Tassigny, 75775 Paris Cedex 16, France

  • Venue:
  • Computers and Industrial Engineering
  • Year:
  • 2011

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Abstract

In this paper we consider the structural analysis problem for differential-algebraic systems with conditional equations. This problem consists, given a conditional differential-algebraic system, in verifying if the system is structurally nonsingular for every state, and if not in finding a state in which the system is structurally singular. We give a formulation for this problem as an integer linear program. This is based on a transformation of the problem into a matching problem in an auxiliary graph. We also show that the linear relaxation of that formulation can be solved in polynomial time. Using this, we develop a Branch-and-Cut algorithm for solving the problem and present some experimental results.