نتایج جستجو برای: Harmonic contribution

تعداد نتایج: 264990  

Abstract:Today, one of the important issues of power quality (PQ) in power systems is the current harmonics. Increasing expansion of nonlinear loads at different parts of the electric network makes harmonic distortion flow through the network. This causes the network to have background voltage and current harmonic distortion and even affect on the PQ of linear load performance. Therefore, it is...

Assessment of complex harmonic current contribution of each wind turbines at connection point of a wind farm to the grid (primary emission) is presented in this paper. Moreover, contribution of grid background harmonic voltage distortion on harmonic current distortion (secondary emission) of each turbine is also evaluated. Both assessments are represented based on primary and secondary transfer...

Journal: :Frontiers in psychology 2015
Antonio S. Silva Ruth Mace

The idea that cooperative groups out-compete less cooperative groups has been proposed as a theoretical possibility for the evolution of cooperation through cultural group selection. Previous studies have found an association between increased cooperation and exposure to inter-group violence, but most have not been able to identify the specific target of cooperation and are based on correlation...

2017
M. R. Yusoff M. H. Jopri A. R. Abdullah T. Sutikno M. Manap A. S. Hussin

Received Jun 13, 2017 Revised Sep 21, 2017 Accepted Oct 4, 2017 Fast and accurate detection of the harmonic and interharmonic contribution of electric arc furnace (EAF) is crucial in identifying and to mitigate the undesired effects to the system. In this paper, periodogram, a fast and accurate technique is introduced for the analysis of the contribution. Based on a rule-based classifier and th...

Journal: :IEEE Access 2023

The background harmonic fluctuation has a significant impact on the results of contribution quantification. However, existing methods, especially those applied for multiple sources scenario, usually assume that harmonics remain constant, which is inconsistent with actual operation power grid. Thus, method based minimum impedance proposed to quantify in scenario. First, roughly estimated and use...

2017
Amy R. Bland Jonathan P. Roiser Mitul A. Mehta Thea Schei Barbara J. Sahakian Trevor W. Robbins Rebecca Elliott

Economic games such as the Ultimatum Game (UG) and Prisoner's Dilemma (PD) are widely used paradigms for studying fairness and cooperation. Monetary versions of these games involve two players splitting an arbitrary sum of money. In real life, however, people's propensity to engage in cooperative behavior depends on their effort and contribution; factors that are well known to affect perception...

ژورنال: فیزیک زمین و فضا 2014
A Safari H Amin I Foroughi M.A Sharifi

Gravity acceleration data have grand pursuit for marine applications. Due to environmental effects, marine gravity observations always hold a high noise level. In this paper, we propose an approach to produce marine gravity data using satellite altimetry, high-resolution geopotential models and harmonic splines. On the one hand, harmonic spline functions have great capability for local gravity ...

In the present paper, we shall attempt to make a contribution to approximate analytical evaluation of the harmonic decomposition of an arbitrary continuous function. The basic assumption is that the class of functions that we investigate here, except the verification of Dirichlet's principles, is concurrently able to be expanded in Taylor's representation, over a particular interval of their do...

Journal: :international journal of nonlinear analysis and applications 0
john venetis school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece emilios sideridis school of applied mathematics and physical sciences ntua, section of mechanics, 5 heroes of polytechnion avenue gr,15773 athens, greece.

in the present paper, we shall attempt to make a contribution to approximate analytical evaluation of the harmonic decomposition of an arbitrary continuous function. the basic assumption is that the class of functions that we investigate here, except the verification of dirichlet's principles, is concurrently able to be expanded in taylor's representation, over a particular interval o...

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