group properties of contingencies in power systems

... Editors Handbook of Networks in Power Systems I Editors Alexey Sorokin University of Florida Industrial and Systems Engineering Weil Hall 303 32611 Gainesville Florida USA sorokin@ufl.edu Steffen ... for general use Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com) Handbook of Networks in Power Systems: Optimization, Modeling, Simulation and ... a specialization of the broader “Handbook of Power Systems I & II,” published by Springer in 2010 For decades, power systems have been playing an important role in humanity Industrialization...

Ngày tải lên: 18/02/2014, 22:20

... calculating 7th harmonic subgroup 7th interharmonic subgroup 8th harmonic subgroup Figure 1: IEC grouping of “bins” for harmonic and interharmonic subgroups RW [3] Another method, in the framework of ... in the frequency domain due to the DFT linearity [6] f = 2.4 Smoothing of the results In the IEC standards [1, 2], it is highly recommended to provide a smoothing of the results obtained during ... contiguous time windows in the time observation period Tobs Since in distortion assessment in power systems, the waveforms can be considered to be the sum of sinusoids, the damping factors value...

Ngày tải lên: 22/06/2014, 23:20

... sampling points in each cycle of the switching signal This can be done either by maintaining the frequency modulation ratio mf and increasing the total number of sampling points in the power cycle ... beginning of the power electronics era Power electronics is the branch of engineering concerned with the application of electronics in the control and conversion of electrical power Early power ... beginning of the modern power electronics era This three-terminal device had a continuous current rating of 25 A and a blocking voltage of up to 300 V Since then, the thyristor has become one of...

Ngày tải lên: 18/04/2014, 12:29

... Engineering of University of Iasi in reviewing and frequently retyping parts of the manuscript of this book Thanks are due to the group of younger colleagues helping with the internal reviewing ... the state of the art and present new evolutions and progresses in the domain of information processing and organization in and by fuzzy systems and other types of systems using uncertain information ... of Prof Bulas-Cruz, Head of the Engineering Department at UTAD We gratefully acknowledge the contribution of the Engineering Department of UTAD and the Group of Laboratories for Intelligent Systems...

Ngày tải lên: 01/06/2014, 11:53

... value of the numerical density of nanosized domains contained in microheterogeneous systems, in principle, a relevant number of identical nanoparticles can be synthesized and hosted in such systems ... enhancement of correlation times of the solute molecules signiWcant change of the intrinsic reactivity of the solubilized species14 re-organization of Wnite amounts of solute in nanoscopic domains leading ... water involves an increase of the interlamellar distance, being water localized in the hydrophilic domain As the width of this domain increases, it becomes more and more easy to break the ‘‘inWnite’’...

Ngày tải lên: 04/06/2014, 15:18

... that is, either in the input or output, or internal ones, that is, in the state The properties of the above second kind of systems are more difficult to investigate because of their in nite-dimensional ... excitable Concerning with positivity in the first orthant, an alternative concept of weak positivity was introduced in [7] being of interest in singular delay-free dynamical systems Such systems are ... remaining of the proof follows as in (a) ∞ (1) (c) u ∈ Lm (i.e., q = 1) Then, Ψi j : t × [0,t] → L∞e and s = ∞ so that x ∈ C n ∩ Ln e 1e ∞ The remaining of the proof follows as in (a) Since...

Ngày tải lên: 22/06/2014, 18:20

... are of the second type; examples of this type include various forms of so-called trains The third type of problems contain some very interesting open problems, including those of determining intersection ... GF(2) In this setting, a nonempty set of points is (linearly) dependent if every block intersects the set in an even number of points Counting the point–block incidences in a dependent set in two ... system If in addition the twin systems are isomorphic we have identical twins In the electronic journal of combinatorics 17 (2010), #R98 [20] nine pairs of twin STS(19) are given By examining all...

Ngày tải lên: 08/08/2014, 12:22

... & Neish A.C (1968) In: Constitution and Biosynthesis of Lignin Sprin- ger-Verlag, Berlin, pp 129 Fry S.C (1986) Cross-linking of matrix polymers in the growing cell walls of angiosperms Annu ... formation of chemical bonds in the residual lignin network of thermomechanical pulps has been tween implicated in the autocross-linking of these cellulosic fibers during the production of paper ... explaining the formation of molecular complexes by auto- and heteropolymerization in plant cell walls with an increase of lignin functional properties The high frequency of relatively labile intermonomeric...

Ngày tải lên: 09/08/2014, 03:24

... and the interpretation of the resulting information is described 1.1 DEFINITION OF SSR Subsynchronous resonance (SSR) is a dynamic phenomenon of interest in power systems that have certain special ... are often conveniently defined in terms of the major subsystems of equipment that are active in determining the system performance Figure 1.1 shows a broad overview of the bulk power system, including ... MACHINE STRUCTURE The flux linkage equations for the synchronous machine are defined in terms of the self and mutual inductances of the windings Figure 2.1 shows an end view of the generator windings,...

Ngày tải lên: 14/08/2014, 15:21

... Expected Value of Perfect of Information include value of clairvoyance, and value of information of observing the evidence Chapter 1: Introduction 1.2 Related topics A great deal of effort has ... cliques containing variable B, then A is said to be strictly outward of B and B strictly inward of A If all clusters containing A either contain B or are outward of a cluster containing B, then ... performing a series of marginalizations of summation and maximization alternatively Marginalizing a chance variable A out of the joint probability distribution we get the joint probability of all...

Ngày tải lên: 17/09/2015, 17:19

... priority process The unpredictable nature of emergence makes it more interesting and increasingly important in software engineering, especially in systems of systems that exploit emergence to achieve ... examined and it likely forms when the mean degree of the graph increases While its simplicity is appealing, macroscopic modeling is less powerful in getting insights of the system properties, including ... closed systems with fixed number of agents Lsum is a mechanical combination of individual states of agents, regardless of constraints among agents, thus resulting in invalid permutations of agents’...

Ngày tải lên: 01/10/2015, 17:27

... priority process The unpredictable nature of emergence makes it more interesting and increasingly important in software engineering, especially in systems of systems that exploit emergence to achieve ... examined and it likely forms when the mean degree of the graph increases While its simplicity is appealing, macroscopic modeling is less powerful in getting insights of the system properties, including ... closed systems with fixed number of agents Lsum is a mechanical combination of individual states of agents, regardless of constraints among agents, thus resulting in invalid permutations of agents’...

Ngày tải lên: 07/10/2015, 10:10

... variety of properties of peer-to-peer systems The properties examined fall into four groups, along two axes: properties of peers versus properties of how peers are connected, and static properties ... Doctor of Philosophy in the Department of Computer and Information Science to be taken December 2006 Title: MEASURING AND CHARACTERIZING PROPERTIES OF PEER-TO-PEER SYSTEMS Approved: Prof Reza ... Rejaie Peer-to-peer systems are becoming increasingly popular, with millions of simultaneous users and a wide range of applications Understanding existing systems and devising new peer-to-peer...

Ngày tải lên: 13/11/2015, 04:33

... applications of PSO in power systems Some potential applications of PSO in power systems, which are not yet explored in the literature, are briefly discussed in Section V Finally, the concluding remarks ... Technology, Tehran, in 2001, both in power electrical engineering, and the Ph.D degree in electrical engineering from the Georgia Institute of Technology, Atlanta, in 2006 He is currently doing research ... Chair of Electrical Machines and Power Systems at the University of Natal, Durban, South Africa At the University of Natal, he was a Professor of Electrical Engineering for many years, including...

Ngày tải lên: 22/09/2016, 20:24

... conformation of inhibitor main chain Thus, different inhibitors differ not only in the binding affinity, but also in the degree of freedom of the inhibitor inside the binding tunnel Some special inhibitors ... protease but also of the protease to the inhibitor Comparison of inhibitors side chains Boc groups at P2 of SE and RE inhibitors lie in the same position Only in the case of inhibitor OE, the ... constants of RE and SE can be explained by the fact that the strain imposed on inhibitor during docking into the binding site of protease does not allow correct orientation of the hydroxyl group...

Ngày tải lên: 19/02/2014, 16:20

... methodology aiming at controlling performance and power levels of digital circuits and embedded systems, with the goal of extending the autonomous operation time of battery-powered systems In this work, ... management in embedded systems, ” Computing & Control Engineering, vol 14, no 5, pp 36–40, 2003 E.-Y Chung, L Benini, and G de Micheli, “Dynamic power management using adaptive learning tree,” in Proceedings ... Computer-Aided Design of Integrated Circuits and Systems, vol 18, no 6, pp 813–833, 1999 [3] Y.-H Lu, T Simunic, and G de Micheli, “Software controlled power management,” in Proceedings of the 7th International...

Ngày tải lên: 22/06/2014, 19:20

... Sept./Oct 1990 [4] C M Boring and K J Porter, “Criteria for approval of mining equipment incorporating on-board switching of high-voltage circuits,” in Proc 9th WVU Int Mining Electrotechnology Conf., ... engineering from The Pennsylvania State University, University Park, the M.S degree in mining engineering from the University of Pittsburgh, Pittsburgh, PA, and the Ph.D degree in mining engineering ... Endowed Chair of Civil Engineering at the University of Alabama, Tuscaloosa, where he has also held the positions of Interim Department Head of Aerospace Engineering and Mechanics, Professor of Electrical...

Ngày tải lên: 26/11/2015, 09:40

... turns of speaking in six groups Ordinal number Group Total number of students 01 02 03 04 05 06 Total: Group Group Group Group Group Group 06 0-1 Over (turns of speaking) (turns of speaking) 03 ... 10 minutes (3 minutes for brainstorming and minutes for group discussion) 28 The criteria of evaluating each student’s activeness in groupwork based on the number of turns of speaking in groupwork ... groupwork in language teaching in general and in teaching writing in particular the definitions of groupwork, the uses of groupwork in language teaching and in teaching writing, its advantages and problems...

Ngày tải lên: 07/11/2012, 14:31

... researcher wants to investigate the use of group work in teaching speaking of English major students with a focus on the process of group work organization in hope of finding information which ... find ways to achieve communicative objectives 2.3 Group work in speaking lesson 2.3.1 Definition of group work There are some definitions discussing about group work: Doff (1988:137) defines group ... teachers here often use three main stages: setting up (organizing the pairs and group/ giving instructions), monitoring (listening to the pairs/ groups during the activity and guiding / giving support/...

Ngày tải lên: 07/11/2012, 14:50