Fuzzy Linear Programming: Optimization of an Electric Circuit Model

Authors

  • Ana Maria Amarillo Bertone Universidade Federal de Uberlândia
  • Rosana Sulei da Motta Jafelice Universidade Federal de Uberlândia
  • Marcos Antônio da Câmara Universidade Federal de Uberlândia

DOI:

https://doi.org/10.5540/tema.2017.018.03.419

Keywords:

Electrical circuit model, Linear programming, Fuzzy linear programming, Fuzzy sets of type-1, Fuzzy sets of type-2

Abstract

A problem of a voltage division circuit is modeled in order to determine the values of the resistors, centered in away that the impedance of the resistance voltage divider is minimal. This problem is equivalent to maximizing the admittance, associated to the resistance, which is defined as the quotient of the electric current and its voltage, measured in Siemens. Three cases are analyzed for the components of the linear programming: real numbers, fuzzy numbers of type-1, and fuzzy set of type-2. The first case is considered in order to validate the other two cases. The optimal solution in the fuzzy linear programming of type-1 is obtained through a total linear order defuzzification function, defined in the trapezoidal fuzzy numbers subspace of fuzzy numbers vector space, which allows to solve the corresponding linear programming problem with real components. A discussion upon the parameter for the linear defuzzification is establish to determined the best representative of the parameters family. The α−levels representation theorem is the method to obtain the optimal solution of type-2. For each α−level is solved a fuzzy linear programming problem of type-1, using the previous methodology. Numerical simulations illustrate the results in the three cases.

Author Biographies

Ana Maria Amarillo Bertone, Universidade Federal de Uberlândia

Faculdade de Matemática - Matemática Aplicada

Rosana Sulei da Motta Jafelice, Universidade Federal de Uberlândia

Faculdade de Matemática - Matemática Aplicada

Marcos Antônio da Câmara, Universidade Federal de Uberlândia

Faculdade de Matemática - Matemática Aplicada

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Published

2018-01-10

How to Cite

Bertone, A. M. A., Jafelice, R. S. da M., & Câmara, M. A. da. (2018). Fuzzy Linear Programming: Optimization of an Electric Circuit Model. Trends in Computational and Applied Mathematics, 18(3), 419. https://doi.org/10.5540/tema.2017.018.03.419

Issue

Vol. 18 No. 3 (2017)

Section

Original Article

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