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stochastic-techniques
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Probabilistic evaluation of voltage sag in transmission systems
, Article 2003 IEEE Bologna PowerTech Conference, Bologna, 23 June 2003 through 26 June 2003 ; Volume 4 , 2003 , Pages 169-174 ; 0780379675 (ISBN); 9780780379671 (ISBN) ; Billinton, R ; Aboreshaid, S ; Fotuhi Firuzabad, M ; Sharif University of Technology
2003
Abstract
Voltage sags, also known as dips, are important to industrial reliability. This paper presents a Monte Carlo based approach to evaluate the maximum voltage sag magnitudes as well as the voltage unbalance ratio in transmission systems. In this context, investigations have been conducted on a system model taking into consideration the uncertainty in several factors associated with the practical operation of a power system. MATLAB is used in the simulation studies. © 2003 IEEE
A multiple-point statistics algorithm for 3D pore space reconstruction from 2D images
, Article Advances in Water Resources ; Volume 34, Issue 10 , October , 2011 , Pages 1256-1267 ; 03091708 (ISSN) ; Safekordi, A ; Farhadpour, F. A ; Sharif University of Technology
2011
Abstract
Fluid flow behavior in a porous medium is a function of the geometry and topology of its pore space. The construction of a three dimensional pore space model of a porous medium is therefore an important first step in characterizing the medium and predicting its flow properties. A stochastic technique for reconstruction of the 3D pore structure of unstructured random porous media from a 2D thin section training image is presented. The proposed technique relies on successive 2D multiple point statistics simulations coupled to a multi-scale conditioning data extraction procedure. The Single Normal Equation Simulation Algorithm (SNESIM), originally developed as a tool for reproduction of...