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Título:
A Novel Fuzzy Number Based Method to Model Aggregate Loads for Harmonic Load-Flow Calculation
Autor/es:
ANDRÉS. A. ROMERO; H. C. ZINI; G. RATTA; R. DIB
Lugar:
Bogotá, Colombia
Reunión:
Conferencia; IEEE PES Transmission and Distribution Conference and Exposition; 2008
Institución organizadora:
IEEE Power Engineering Society
Resumen:
Harmonic distortion is a growing problem in power systems due to the increasing use of power electronic devices and loads. A possibilistic methodology for harmonic load-flow calculations based on fuzzy numbers has recently been proposed by the authors as an alternative to probabilistic approaches for modeling uncertainties in linear and nonlinear loads. This paper presents a methodology to aggregate uncertainly known bus loads, whose magnitudes and composition are described through fuzzy parameters, into a fuzzy admittance and injected harmonic currents of a possibilistic harmonic load-flow calculation. Interaction between fuzzy parameters (the possibilistic counterpart of probabilistic dependence) is properly modeled. A numerical example is given in the last section.