نتایج جستجو برای: series system

تعداد نتایج: 2512120  

Journal: :iranian journal of electrical and electronic engineering 0
m. mollanezhad heydarabadi semnan university a. akbari foroud semnan university

current inversion condition leads to incorrect operation of current based directional relay in power system with series compensated device. application of the intelligent system for fault direction classification has been suggested in this paper. a new current directional protection scheme based on intelligent classifier is proposed for the series compensated line. the proposed classifier uses ...

Ali Mohebi Esmaeil Alizadeh Farnaz Kheibari Mehdi Yar Mohammadi

The existence of a series of problems in transportation management of public and personal vehicles causes to consider intelligent transportation systems. Hence, here we investigate to introduce and the performance of intelligent transportation system ITS which is among new technologies in information technology and at last the importance and necessity of lack of delay in data and informat...

Journal: :journal of mathematical modeling 2013
ahmad jafarian zahra esmailzadeh

urysohn integral equation is one of the most applicable topics in both pure and applied mathematics. the main objective of this paper is to solve the urysohn type fredholm integral equation. to do this, we approximate the solution of the problem by substituting a suitable truncated series of the well known legendre polynomials instead of the known function. after discretization of the problem o...

2005
Juan Antonio Gómez Pulido Miguel A. Vega-Rodríguez José M. Granado Criado Juan M. Sánchez-Pérez

In this paper a parallel and adaptive methodology for optimizing the time series prediction using System Identification is shown. In order to validate this methodology, a set of time series based on the sun activity measured during the 20th century have been used. The prediction precision for short and long term improves with this technique when it is compared with the found results using Syste...

2016
Davide Ceneda Wolfgang Aigner Markus Bögl Theresia Gschwandtner Silvia Miksch

The analysis of industrial processes allows quality assessment and production monitoring. Usually these operations are carried out exploiting time-series data. In this work, we analyze a concrete design study of space efficient and time-aggregating visualizations for the analysis of high-frequency time-series. We derive recommendations to enhance the design process and demonstrate their applica...

2011
Ivan Marinovic

Using an earnings management model in which managers can manipulate the earnings announcement when the firm’s internal control system fails, this paper proposes a measure of earnings quality, based on Ganuza and Penalva’s (2010) notion of integral precision that can be estimated using either the time series of earnings or the relation between earnings and prices. I show that large scale frauds ...

Journal: :journal of artificial intelligence in electrical engineering 0

this paper presents a method for damping of low frequency oscillations (lfo) in a power system. the powersystem contains static synchronous series compensators (sssc) which using a chaotic harmony searchalgorithm (chsa), optimizes the lead-lag damping stabilizer. in fact, the main target of this paper isoptimization of selected gains with the time domain-based objective function, which is solve...

Journal: :J. Comput. Physics 2015
Serafim Kalliadasis S. Krumscheid Grigorios A. Pavliotis

a r t i c l e i n f o a b s t r a c t In many applications it is desirable to infer coarse-grained models from observational data. The observed process often corresponds only to a few selected degrees of freedom of a high-dimensional dynamical system with multiple time scales. In this work we consider the inference problem of identifying an appropriate coarse-grained model from a single time se...

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