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    RECENT ADVANCES IN ELECTRIC

    POWER SYSTEMS, HIGH

    VOLTAGES, ELECTRIC MACHINES

    Proceedings of the 8th WSEAS International Conference on

    ELECTRIC POWER SYSTEMS, HIGH VOLTAGES,

    ELECTRIC MACHINES (POWER '08)

    Venice, Italy, November 21-23, 2008

    Recent Advances in Electrical Engineering

    A series of Reference Books and Textbooks

    Published by WSEAS Press

    www.wseas.orgISSN: 1790-5117

    ISBN: 978-960-474-026-0

    http://www.wseas.org/http://www.wseas.org/http://www.wseas.org/
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    RECENT ADVANCES IN ELECTRIC

    POWER SYSTEMS, HIGH

    VOLTAGES, ELECTRIC MACHINESProceedings of the 8th WSEAS International Conference on

    ELECTRIC POWER SYSTEMS, HIGH VOLTAGES,

    ELECTRIC MACHINES (POWER '08)

    Venice, Italy, November 21-23, 2008

    Recent Advances in Electrical Engineering

    A series of Reference Books and Textbooks

    Published by WSEAS Press

    www.wseas.org

    Copyright 2008, by WSEAS Press

    All the copyright of the present book belongs to the World Scientific and Engineering Academy and

    Society Press. All rights reserved. No part of this publication may be reproduced, stored in a retrieval

    system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or

    otherwise, without the prior written permission of the Editor of World Scientific and Engineering Academy

    and Society Press.

    All papers of the present volume were peer reviewed by two independent reviewers. Acceptance was

    granted when both reviewers' recommendations were positive.

    See also: http://www.worldses.org/review/index.html

    ISSN: 1790-5117

    ISBN: 978-960-474-026-0

    World Scientific and Engineering Academy and Society

    http://www.wseas.org/http://www.wseas.org/http://www.wseas.org/
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    RECENT ADVANCES IN ELECTRICPOWER SYSTEMS, HIGH

    VOLTAGES, ELECTRIC MACHINES

    Proceedings of the 8th WSEAS International Conference onELECTRIC POWER SYSTEMS, HIGH VOLTAGES,

    ELECTRIC MACHINES (POWER '08)

    Venice, Italy, November 21-23, 2008

    Editors:

    Subhas C. Misra, Harvard University, U.S.A.

    Roberto Revetria, Univ. degli Studi di Genova, Italy

    Les M. Sztandera, Philadelphia University, U.S.A.

    Mihaiela Iliescu, Politehnica University of Bucharest, Romania

    Azami Zaharim, Universiti Kebangsaan Malaysia, Malaysia

    Hamed Parsiani, University of Puerto Rico, Puerto Rico

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    International Program Committee Members:

    Ajay Srivastava, INDIA

    Ali Alaei, IRAN

    Anastasios Drosopoulos, GREECE

    Ashwani Sharma, INDIA

    Athanasios Maglaras, GREECE

    Chang Soo Kang, KOREAChi-jui wu, TAIWAN

    Costin Cepisca, ROMANIA

    Daniel Cristian Cismaru, ROMANIA

    Essam Hamdi, RWANDA

    F. V. Topalis, GREECE

    Geeta Negi, INDIA

    Haifeng Wang, UNITED KINGDOM

    Hartani Kada, ALGERIA

    Irina Oleinikova, LATVIA

    Janne Nerg, FINLAND

    JIRI KLIMA, CZECH REPUBLIC

    John Sakellaris, GREECE

    Julio Barros, SPAIN

    malrey lee, KOREA

    Mohammad Al-Muhaini, SAUDI ARABIA

    Monica Enache, ROMANIA

    N. Y. A. Shammas, UNITED KINGDOMPetr Blaha, CZECH REPUBLIC

    Petre Tusaliu, ROMANIA

    Ravi Saxena, INDIA

    Sandeep Kumar Goel, INDIA

    Sejid Tesnjak, CROATIA (HRVATSKA)

    Septimiu Mischie, ROMANIA

    Sorin Enache, ROMANIA

    Victor Petrushin, UKRAINE

    Yasser Hegazy, EGYPT

    Zahra Moravej, IRAN

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    Preface

    This book contains the proceedings of the 8th WSEAS International Conference on ELECTRIC

    POWER SYSTEMS, HIGH VOLTAGES, ELECTRIC MACHINES (POWER '08) which was

    held in Venice, Italy, November 21-23, 2008. This conference aims to disseminate the latest

    research and applications in Generation, Transmission & Distribution Planning, Transmission &

    Distribution Equipment, Electricity Demand Management, Control Strategies, EnvironmentalIssues and Impacts, SCADA/EMS and Information Systems, Power Electronics Applications,

    Thermal Power and other relevant topics and applications.

    The friendliness and openness of the WSEAS conferences, adds to their ability to grow by

    constantly attracting young researchers. The WSEAS Conferences attract a large number of well-

    established and leading researchers in various areas of Science and Engineering as you can see

    from http://www.wseas.org/reports. Your feedback encourages the society to go ahead as you

    can see in http://www.worldses.org/feedback.htm

    The contents of this Book are also published in the CD-ROM Proceedings of the Conference.Both will be sent to the WSEAS collaborating indices after the conference:

    www.worldses.org/indexes

    In addition, papers of this book are permanently available to all the scientific community via the

    WSEAS E-Library.

    Expanded and enhanced versions of papers published in this conference proceedings are also

    going to be considered for possible publication in one of the WSEAS journals that participate in

    the major International Scientific Indices (Elsevier, Scopus, EI, ACM, Compendex, INSPEC,

    CSA .... see: www.worldses.org/indexes) these papers must be of high-quality (break-through

    work) and a new round of a very strict review will follow. (No additional fee will be required forthe publication of the extended version in a journal). WSEAS has also collaboration with several

    other international publishers and all these excellent papers of this volume could be further

    improved, could be extended and could be enhanced for possible additional evaluation in one of

    the editions of these international publishers.

    Finally, we cordially thank all the people of WSEAS for their efforts to maintain the high

    scientific level of conferences, proceedings and journals.

    http://www.worldses.org/indexeshttp://www.worldses.org/indexeshttp://www.worldses.org/indexes
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    Table of Contents

    Keynote Lecture: Multivariate Data Completion or Addition on a Single Curve Representation of

    a Hyperrectangulargrid via Fluctuation Suppression

    11

    Metin Demiralp

    Plenary Lecture I: The Experimental Determination and Numerical Simulation of the Dynamic

    Insulation of a Large Consumer Unit

    13

    Flavius Dan Surianu

    Plenary Lecture II: Finite Element Method Simulation for Rapid Prototyping 14

    Mihaiela Iliescu

    Application of Genetic Algorithm to Distribution Network Expansion Planning with Distributed

    Generation

    15

    Majid Gandomkar

    Sliding Modes Control with Interconnected Observers for a Special Class of Nonlinear Systems:

    Application to the Induction Moto Without Mechanical Sensor

    21

    Chouya Ahmed

    Optimal Bidding Curves for an Energy Service Provider in Iran Electricity Market 28

    Shahram Jadid and Mojgan Ladan

    Probabilistic Power Flow Using a New Instrument Designed for Stochastic Power SystemAnalysis

    36

    Constantin Barbulescu, Gheorghe Vuc and Stefan Kilyeni

    Speed Control in Fuzzy Direct Torque Control Induction Motor Drives 47

    A.Ebrahimi and S.Farshad

    Modelling the Trees Growth-Current and Losses in Solid Electrical Insulations 55

    Nacra Rouha

    Identifying Critical Measurements in the Power System Network 61Kenedy Aliila Greyson and Anant Oonsivilai

    An Improvement on Detection of Airgap Eccentricity and Bearing Damage of Induction Motors 67

    Ilker Ozelgin

    A New Voltage Sag and Swell Compensator Switched by Hysteresis Voltage Control Method 71

    Amir Ahmad Koolaiyan, Abdolreza Sheikholeslami and Reza Ahmadi Kordkheili

    New Approach Regarding the Kinematics Characteristics Analysis of Circuit Breakers 77

    Maricel Adam, Adrian Baraboi, Catalin Pancu and Sorin Pispiris

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    New Possibility for the Electroerosion Estimation of the Circuit Breakers Contacts 81

    Catalin Pancu, Adrian Baraboi, Maricel Adam and Costica Roman

    Energy Compression Based on Wound Transmission Lines Network for Pulsed Power

    Applications

    85

    Arvin Nikjamal and Abolfazl Vahedi

    Real-Time Modeling of Synchronous Generator Based on PC 92

    S. Helmy, Amged S. El-Wakeel, M. Abdel Rahman and M. A. Badr

    Switching Overvoltage When Disconnecting a Combined 400 kV Cable/Overhead Line with

    Permanently Connected Shunt Reactor

    99

    Claus Leth Bak and Kim Sogaard

    Switching Overvoltages in 60 kV Reactor Compensated Cable Grid Due to Resonance After

    Disconnection

    109

    Claus Leth Bak, Haukur Baldursson and Abdoul M. Oumarou

    Single-Phase AutoReClosure ARC Failure on 400 kV Combined Cable/Overhead Line with

    Permanently Connected Shunt Reactor

    118

    Claus Leth Bak and Kim Sgaard

    Influence of an Overhead Ground Wire on Electric Fields Around the HV Power Transmission

    Line

    128

    A. Isaramongkolrak, T. Kulworawanichpong and P. Pao-La-Or

    Harmonic Detection by DQ Axis with Fourier Algorithm for Hybrid Power Filters 133K-L. Areerak

    Input Output Feedback Linearization Control of Induction Motor with Varying Parameters 139

    F. Mehazzem, A. Reama, Y. Hamam and H. Benalla

    ANN/ DT Approach for Security Evaluation and Preventive Control of Power Systems 145

    M. K. Shah, K. R. Niazi, C. M. Arora and P. K. Agarwal

    Power Quality Measurement for Line Frequency Coreless Induction Furnaces in MV Network 153

    Angela Iagar, Gabriel Nicolae Popa And Corina Maria Dinis

    Loss Minimization in Parallel & Series Induction Heating Inverters Using Genetic Algorithm 159

    H.Atighechi, H.Javadi and A.Shoulaie

    Effect of Building the Substation 400/110 kV Ferizaj II on Electro Energetic System of Kosova 166

    Ilir Shala, Rexhep Shaqiri and Ibrahim Gashi

    Study of the Impact of Non-rectangular Voltage Sags in Induction Motors 172

    Javier Guerrero, Jose Soto, Danny Robles and Emir Luquez

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    Monte Carlo Simulation to Evaluate the Reliability Improvement with DG Connected to

    Distribution Systems

    177

    Fangxing Li and Nura Sabir

    Refinement of Single-phase Induction Motor Parameters Using Genetic Algorithms 183

    N. Naew-Ngerndee and T. Kulworawanichpong

    Bi-objective Programming for Capacitor Planning Using Interactive Pareto Optimal with

    Advantage

    189

    Cheng-Chien Kuo and Po-Hung Chen

    Pumped Hydro Units Optimal Dispatch by Refined PSO 195

    Po-Hung Chen, Cheng-Chien Kuo, Fu-Hsien Chen and Cheng-Chuan Chen

    A Single-Phase Controlled Rectifier with Unity Power Factor 201

    R. Carbone

    Finite Element Approach to Electric Field Distribution Resulting from Phase-Sequence

    Orientation of a Double-Circuit High Voltage Transmission Line

    207

    A. Isaramongkolrak, T. Kulworawanichpong and P. Pao-La-Or

    Review of PMU-based Online Applications for Dynamic Simulation, Fault Detection, and

    Cascading Failure Prevention

    212

    Zhe Chen, Fangxing Li, Lingling Fan and Pei Zhang

    Semiautomatic Control of Self-propelled Mine Counter Charge in Plane Motion 217

    Jerzy Garus and Piotr Szymak

    Transformer Oils Service Life Identification Using Neural Networks 222

    L. Ekonomou, P.D. Skafidas and D.S. Oikonomou

    On the Physics and Economics of Renewable Electric Energy Sources Part I Utilization 227

    Mats Leijon, Annika Skoglund, Rafael Waters, Alf Rehn and Marcus Lindahl

    On the Physics and Economics of Renewable Electric Energy Sources Part II Engineering 233

    Annika Skoglund, Mats Leijon, Alf Rehn, Marcus Lindahl and Rafael Waters

    Experimental Determination and Numerical Simulation of the Dynamic Insulation of a Large

    Consumer Unit

    239

    Flavius Dan Surianu

    Cross-Section Determination of Earthing and Short-Circuiting Mobile Devices for Fitted

    Overhead Lines and Substations with Digital Protections

    247

    Ilona Bucatariu, Flavius Dan Surianu and Vasile Dusa

    Assessment of Maximal Electromagnetic Field Values Based on the Discrete Measured Data Set252

    Niksa Kovac, Nino Bozic and Mario Cvetkovic

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    Finite Element Method Simulation and Rapid Prototyping 257

    Mihaiela Iliescu, Emil Nutu and Luminita Georgescu

    On the Physics and Economics of Renewable Electric Energy Sources Part I Utilization 263

    Mats Leijon, Annika Skoglund, Rafael Waters, Alf Rehn and Marcus Lindahl

    Landfill Impact on Groundwater 269

    Syeda Azeem Unnisa, A. Siva Sankar and K.Mukkanti

    Simulations of Three- Phase Induction Motor Operating with Voltage Unbalance 273

    Kanwarjit Singh Sandhu and Vineet Chaudhary

    Author Index 281

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    Keynote Lecture

    Multivariate Data Completion or Addition on a Single Curve Representation of a

    Hyperrectangulargrid via Fluctuation Suppression

    Professor Metin DemiralpIstanbul Technical University, Informatics Institute,

    Group for Science and Methods of Computing,

    Istanbul, TURKIYE

    Abstract: This work is somehow about multivariate interpolation. If an Nvariate function is given at certain points

    of the cartesian space of the N independent variables and its value at a point which is outside the data given points is

    sought then various methods available in the literature can be used to find this value. However, there is almost no

    unique universal way to do so and each method has its own capability, efficiencies, deficiencies and pitfalls. Data

    completion and data mining techniques can also be considered amongst them.

    The work focuses on a finite hypergrid in Ndimensional cartesian space first and then a multivariate functions

    values are assumed to be given at certain nodes (we call them full nodes) of this grid. The next step is the dimension

    reduction. To this end we construct a single continuous curve passing through all nodes of the grid with respect to an

    appropriately chosen ordering. Curve construction is not unique and depends on the ordering of the nodes. It isbetter to choose the curves whose mathematical definitons are rather simple. This construction leaves us to use just a

    single parameter to specify any location on the curve. Although the nodes are defined as N tuples in the N

    dimensional cartesian space their locations can also be given in terms of the curve parameter. Hence, the data

    completion or addition problem is converted to a univariate interpolation which is rather simple.

    The full nodes are now represented by ordered pairs whose first elements are the position parameter values on the

    constructed curve while the second elements are the multivariate functions values at those points. Data completion

    (to inject one or a few missing data to a data set which is almost full everywhere) or data addition (to evaluate thefunctions value at an empty node within a sparsely data given hypergrid) then becomes to seek the multivariate

    functions value at a specified node which corresponds to a unique position on the curve.

    There are a lot of univariate interpolation methods, each of which can be used for the interpolation on the curve

    defined above depending on the nature of the demands and produces some unavoidable errors. Quite recently a new

    method of interpolation is developed by Demiralp. It uses the Fluctuationlessness Theorem (conjectured and proven

    by Demiralp recently). Theorem dictates us that the matrix representation of a function over a subspace of the

    Hilbert space for analytic and square integrable functions is equal to the image of the independent variables matrix

    representation on the same subspace under the same function as long as the fluctuation terms (differences between

    the means of specified powers of the independent variable and the same specified power of the mean of the

    independent variable). This fact can be used to approximate an integral and a quadrature like formula (the linear

    combination of the function values at certain points with positive linear combination coefficients (we call weights)

    can be obtained. The quality of the approximation depends on the dimension of the subspace mentioned above and

    becomes better as the dimension increases. Hence the two sufficiently high consecutive dimension will give the

    same value for the integration under consideration within a prescribed accuracy.

    The integrand of the abovementioned integral is chosen in such a way that it becomes a linear combination of given

    values of the multivariate function for, say, n dimensional subspace while the same value is expressed as another

    linear combination of the given function values and the single sought values of the same function for the (n + 1)

    dimensional subspace. Since these two expressions should produce the same value it is possible to extract the sought

    value of the function under consideration. Presentation will focus on these topics and certain remarks.

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    Acknowledgment:Author is grateful to Turkish Academy of Sciences for its support.

    Brief Biography of the Speaker: Metin Demiralp was born in Turkey on 4 May 1948. His education from

    elementary school to university was all in Turkey. He got his BS, MS, and PhD from the same institution, Istanbul

    Technical University. He was originally chemical engineer, however, through theoretical chemistry, applied

    mathematics, and computational science years he is working on methodology for computational sciences. He has a

    group (Group for Science and Methods of Computing) in Informatics Institute of Istanbul Technical University (he

    is the founder of this institute).

    He collaborated with the Prof. H. A. Rabitz's group at Princeton University (NJ, USA) at summer and winter

    semester breaks during the period 1985--2003 after his 14 months long postdoctoral visit to same group in 1979--

    1980.

    Metin Demiralp has roughly 70 papers in well known scientific journals and is the full member of Turkish Academy

    of Sciences ince 1994. He is also a member of European Mathematical Society and the chief--editor of WSEAS

    Transactions on Mathematics currently. He has also two important awards of Turkish scientific establishments.

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    Plenary Lecture I

    The Experimental Determination and Numerical Simulation of the Dynamic Insulation of a

    Large Consumer Unit

    Professor Flavius Dan SurianuFaculty of Electrical and Power System Engineering

    Politehnica University of Timisoara

    [email protected]

    Abstract: The dynamic processes of power systems represent a dangerous but fascinating problem and knowing

    them precisely in order to prevent or reduce their consequences is a real challenge for specialists. Due to theirunpredictability, it is difficult to get them known and thus mathematical simulation is necessary. It is a very useful

    instrument, but it requires a very careful choice of the simplifying hypotheses and an experimental testing of the

    results. This is the topic of the lecture. It presents a mathematical simulation of a steam power plant connected to an

    electric network supplying a set of consumers. It simulates a dynamic insulation process of a large industrial

    consumer through its sudden disconnection from the power system. The evolution of the insulation is followed

    through until its post emergency stability state is reached. The results are then compared with those of an insulationof a large industrial consumer equipped with its own power source - The Integrated Iron and Steel Work- Hunedoara

    - Romania. The comparison has led to the validation of the mathematical simulation. It has become a very useful

    instrument for studying the dynamic regimes and the determination of critical states of power systems.

    Brief Biography of the Speaker: Flavius Dan Surianu was born in Timisoara, Romania on April, 2, 1949. He

    received the B.Sc. and the Ph.D. degrees in electric machines from the Politehnica University of Timisoara, in 1972

    and 1987, respectively. Since 1977 he has been devoted to education and research at the Politehnica University ofTimisoara where he is a professor in areas of Large Industrial Consumer Units, Identification and Mathematical

    Modeling of Power System Elements and Electromagnetic Compatibility and he is the head of the Power System

    Department of the Faculty of Electrical and Power System Engineering. He has a remarkable scientific and didactic

    experience being the author of 14 books, 66 technical papers and 57 research projects, mainly in the fields of

    transient and long term dynamics of power systems, mathematical models of large consumer units, high voltage and

    electromagnetic risk, electromagnetic compatibility and renewable energies.

    mailto:[email protected]:[email protected]
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    Plenary Lecture II

    Finite Element Method Simulation for Rapid Prototyping

    Assoc. Prof. PhD. Eng. Mihaiela IliescuPOLITEHNICA University of Bucharest,

    ROMANIA

    [email protected]

    Abstract: Rapid Prototyping is part of a modern technologies group whose target is to reduce the designing and

    manufacturing cycle of a product. One efficient rapid prototyping technique is that of 3D printing and, its benefits in

    designing and manufacturing elements of a laser medical device are presented by this paper. More, a simulation

    involving computational fluid dynamics (CFD) and heat transfer phenomena, carried out with finite element method,

    tested the good functional characteristics of the whole laser medical device.

    Brief Biography of the Speaker:

    a)

    Graduated in 1989, POLITEHNICA Institute of Bucharest Machine Building Technology Department,won best student award; Worked as an engineer in the Design Department of a Romanian peripheral

    equipment factory, FEPER, in 1989 1991.

    Since 1991 has been working, as a teacher (Associated Professor, since 2004) in POLITEHNICAUniversity of Bucharest, ROMANIA Manufacturing Department

    Doctoral Thesis, in 2000 on Quality and Machinability of Thermal Sprayed Layers; Took additional Statistic Courses (Basic Concepts in Statistics, Design of Industrial Experiments), with

    USA universities Professors, in 2006 and 2007 and graduated with mark A.

    b) Scientific Activities

    scientific researcher, in about 30 Research Projects and Grants; almost, 70 studies and papers - published to International/National Conferences, Sessions, Workshops,

    Platform Meetings etc.;

    lecturing courses on: Applied Statistics for Engineers; Metal Forming; Manufacturing Technologies;Injection Moulding

    author of 7 books on Statistics, Manufacturing Technology, Geometrical Precision Inspection member of:

    - Manufacturing Engineering Universities Association - AUIF - ROMANIA

    - Economical Engineering Romanian Association - ARIE - ROMANIA- Plastics Industry Producers Association ASPAPLAST R OMANIA

    - Rapid Manufacturing Association RAPIMAN (worldwide rapid prototyping and innovative

    manufacturing joint)

    c) WSEAS Activities

    Papers in WSEAS Conferences: Bucharest, June, 2008; Crete, 2008, Rhodos, 2008, WSEAS JournalTransactions on Systems

    organizing activities for WSEAS Conference, Bucharest, June, 2008

    mailto:[email protected]:[email protected]