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5,6,7 September, 1995
Conference Proceedings
Volume 2
Hosted by
School ofEngineering
University of Greenwich
London
335 Control of Voltage Stability in a System with Long Distance Transmission
Line
T Tran-Quoc - Institut National Polytechnique de Grenoble, France
L Pierrat, N Nguyen-Khac - Electricite de France, France
K Nguyen-Boi, P Phan-Ke - Ho Chi Minh City University of Tech, Vietnam
Q Tran-Trong - Power Company No 2, Vietnam
339 C++ Object Oriented Power Systems Software
SG Tan, JJ Rico-Melgoza, E Acha, CR Fuerte-Esquivel - University of Glasgow,UK
343 The Use of DINIS in the Glasgow University Power Systems LaboratoryE Acha - University of Glasgow, UK
K Parton - Ken Parton & Associates, UK
347 Design of Magnetic Components using a Graphical Interface: Inclusive of
High Frequency Effects
JG Breslin, WG Hurley, University College, Galway, Ireland
351 Local Pre-Screening Applfed to Cyclic Security AnalysisH Le Kim, N Hadjsaid, J-C Sabonnadiere - Institut National Polytechnique De
Grenoble, France
355 The Design and Control of Portable Pulse-Width-Modulated (PWM) DC-AC
Inverter
B Baha - University of Brighton, UK
359 A Sensitivity Analysis of Capital and Operating Costs of Mini-Hydro
Generating Plant
AR Wallace, Ms R E Wilkinson - University of Edinburgh
363 Applying Distributed Processing Methodology ot Harmonic Elimination in
AC/AC Chopper Circuits
HJ Wolfe, GE South, FJ Swift - The Manchester Metropolitan University, UK
Session 10: Drives & Machines III
Chairman: Mr LMC Mhango, Airscrew Howden Ltd
Wednesday 6 September at 9.00 am, Arts Centre
367 Finite Element Post Processing for Permanent Magnet Motors
G Thomas, Y Anagreh - University College Swansea, UK
371 Measurement of Iron Loss in PWM Inverter Fed Induction Machines
M Sokola, V Vuckovic, E Levi - Liverpool John Moore's University, UK
375 Linear Drives - A Market SurveyR Hanitsch - Berlin University of Technology, Germany
379 A Real Time Controlled Brushless DC Motor with Trapezoidal Excitation
MS Khanniche, M Bah - University of Wales, UK
xi
383 Measurement of Iron Loss in Single Phase Induction Motors
M McCormick, WF Low, A Bousbaine - De Montfort University, UK
387 Modelling of a Brushless Single Phase Self Excited Alternator
P Dean, M Kansara, JMK Pratt - Nottingham Trent University, UK
391 Modelling and Analysis of Linear Induction Drives
G Gentile, S Meo - Universita "Federico II" di Napoli, ItalyA Ometto - Universita di L'Aquila, ItalyM Scarano - Universita di Cassino, Italy
395 Computer Based Simulation of a Vector Controlled AC Drive System for
Performance Analysis and Condition MonitoringM Herbert, AJ Curley, R Perryman - University of Greenwich, UK
Session 11: Power System Protection I
Chairman: Dr P Crossley, UM3ST Manchester
Wednesday 6 September at 9.00 am, Lecture Theatrer
399 The Design and Application of an Optimal Reclosure Device
BH Zhang, YZ Ge - Xian Jiaotong University, China
ZQ Bo, RK Aggarwal, AT Johns - University of Bath, UK
403 Impacts of Internal Arcing Faults in Low-Voltage Switchgear Assemblies and
Power SystemsH Schau, D Stade - Technische Universitat Ilmenau, Germany
407 Dynamic Modelling of Protection Signalling. Part n: Integration of the
Transducers
M Tumay, MS Buamud - Strathclyde University, UK
411 Comparison of Distance Protection Algorithms for EHV Power Cable
PJ Moore, RK Aggarwal, ZQ Bo, AT Johns - University of Bath, UK
415 An Investigation of Characteristics for Tripping Protection Detecting Out of
Step Conditions. An Eskom Case StudyJ Van Eyssen - ESKOM, South Africa
A Petroianu - University of Cape Town, South Africa
419 An Enhanced Stator Widening Protection for Small and Medium Sized
Generation Based on the Fast Walsh-Hadamard Functions
MA Redfern, D Hunn - University of Bath,'UKDB Hewings - University College, Swansea
423 Integrating Model Based Diagnosis into a Decision Support System for
Protection EngineersS Bell, SDJ McArthur, JR McDonald, GM Burt - University of Strathclyde, UKR Mather, SM Burt - Scottish Power, Glasgow
xii
427 Neural Network Approach to Staggered Tripping of Circuit Breakers in
Adaptive Single Pole AutoreclosingHY Li, RK Aggarwal, AT Johns, RW Dunn - University of Bath, UKD Fitton - Reyrolle Protection
Session 12: Power System Operation, Economics and Reliability
Chairman: Dr F McNamara, ESB International, Dublin
Wednesday 6 September at 9.00 am, Gym 1
435 Load Forecasting for the Power System of Crete - A Comparative AnalysisT Papazoglou - Technological Education Institute, Crete
B Bitzer, F Rosser - Universitat-GH Paderborn
439 Constrained Economic Dispatch Scheduling in a Real Public Electricity SupplySystem - A Genetic ApproachF Li, R Morgan, D Williams - Liverpool John Moores UniversityYH Song - University of Bath
443 Evolutionary Development of an Intelligent System for Power Network
Operator Assistance
IM Elders, GM Burt, JR McDonald - University of Strathclyde, UK
J Spiller, D Brooks, R Samwell - South Western Electricity PLC
447 Dynamic Stability Screening of Electric Power Systems Using Artificial Neural
Networks
AR Edwards, KW Chan, RW Dunn, AR Daniels - University of Bath, UK
451 Reactive Power Optimisation and Voltage Regulation for Large Power SystemsJY Liu, YH Song, AT Johns - University of Bath, UK
XY Li, GD Wang - Sichuan Union University, China
455 Standards Applicable to Earthing Design - Which Ones to Follow?
A Beddoes - EA Technology, UKAM Davies, H Griffiths - University of Wales College of Cardiff, UK
459 The Use of Soft Energisation in Power System Restoration
MC Hayden, JG Kennedy - ESB National Grid, Dublin
Session 13: Power Generation n
Chairman: Dr MA Redfern, University of Bath
Wednesday 6 September at 11.30 am, Arts Centre
463 Application of Intelligent Control Strategies to Generating Unit Load Control
DJ Geddes, BW Hogg, E Swidenbank - Queen's University of Belfast, N. Ireland
467 Safety in the Former Soviet Nuclear Power IndustryHW Whittington, DH Wilson - University of Edinburgh, UK
xiii
473 Multivariate Polynomial H AVR Design for Synchronous GeneratorsI Eker - University of Strathclyde
477 Transient Model of a Self-Controlled Brushless Synchronous GeneratorL Hindkaer, H Mentz, TI Mortenson, K Ries, E Ritchie, CYB Thor - AalborgUniversity, Denmark
482 Harmonic Reduction of Saturable Reactor Controlled Induction GeneratorsSMI Lidgey, PJ Moore, KJ Passey - University of Bath
486 Characteristics of Small Synchronous MachinesJP Martin, CE Tindall, DJ Morrow - Queen's University of Belfast, N. IrelandPAJ Calvert - FG Wilson (Engineering) Ltd, N. Ireland
Session 14: High Voltage Systems and Measuring Techniques
Chairman: Mr M McMahon, ESB International Dublin
Wednesdday 6 September at 11.30 am, Lecture Theatre
490 A Versatile Multiple Stroke Lightning Impulse GeneratorWH Siew, MM Yaacob, ID Chalmers - University of Strathclyde, UK
494 Emergency Bypass of a G3 MVA Power Transformer Using TemporaryWoodpole Structures
J Kennedy, P O'Brien, E O'Connor, J Whelan, M Hayden - ESB Engineering Ltd,Ireland
497 Monitoring of Surge Arresters
C Spellman, A Haddad, DM German, RT Waters - University of Wales College of
Cardiff, UK
501 Simulation Study of a new 240 MVA Fast Response Tapchanger SchemeR Shuttleworth, X Tian - University of Manchester, UKA Power, YK Tong - National Frid
505 The Application of Factory Partial Discharge Measurement to Extruded PowerCables and Accessories
R Donaghy - ESB International, Dublin
509 A New Measurement Technique for Power Transformer Faults
ZQ Bo, RK Aggarwal, AT Johns - University of Bath, UK
Session 15: Power Electronic Devices and Applications I
Chairman: Commander NA Haines, Royal Naval Engineering CollegeWednesday 6 Setpember at 11.30 am, Gym 1
513 Resonant HF Link Single-Transformer UPS System with SPWMCycloconverterTH Abdelhamid, AL Moharnadein, MS Abo-Elelaa - Alexandria University, EgyptMK Darwish, P Mehta - Brunei University, UK
xiv
517 A Variable Speed Permanent Magnet, Wind-Turbine Generator and itsControl
Z Chen, E Spooner - University of Durham, UK
431 Experimental Study of a UFC Laboratory Model Employing GTO ThyristorsGA Putrus University of Northumbria at Newcastle, UKCB Cooper - UMIST, UK
521 Simulation of Power Electronics Using the EMTP. Part II: Electrical Drives,A SurveyJA Martinez-Valasco - Universitat Politecnia de Catalunya, SpainGA Capolino - Universite de Picardie Jules Verne, France
525 Real-Time Control of Direct AC-AC Matrix Converters Using a DSP-Based
Space Vector Modulator
L Zhang, C Watthansarn, F Hardan - University of Bradford, UK
529 Drive Circuit for a Power GTO with an Over Current Protection
MH Taha, T Green - Imperial College, UK
Poster Session C:
Chairman: Mrs GF Whapshott, University of Greenwich
Wednesday 6 September at 9.00 am, Gym 2
533 The Potential for Electrotechnologies in the Ceramics IndustryS Jay, TN Oliver - Aston University, UK
537 Electromagnetic Interference in One-Rail Return AC Railway Systems with
Booster Transformers
NK Gupta - Napier University, UKJP Bickford - UMST, UK
541 The Effects of Stochastic Domestic Electrical Loads on the Thermal Sizing of
Aerial Bundled Conductors
R Herman, DR Theron - University of Stellenbosch, S. Africa
545 A Novel Low-Head Hydro Scheme Using an Induction Generator
AA Williams, PG Holmes - Nottingham Trent University, UK
550 Parallel Factorisation and Solution of Network EquationsD Grey, J Bialek - University of Sunderland, UK
554 Calculations of Magnetic Fields of the Bus Bars
T Keikko, L Korpinen, J Partanen - Tampere University of Technology, Finland
558 Parameter Determination and Performance Control of an Alternator by the
Choice of Saturation Level in the Exciting Transformer
N Elsonbaty - University of Zagazig, EgyptPG Holmes - Nottingham Trent University
xv
562 Active and Reactive Load Demands in Unbalanced Industrial Energy SystemP Caramia, P Verde - Dip.to di Ingegneria Industriale, Italy
567 Integration of Wind Turbines into L-V Networks
TS Davies, H Nouri - UWE Bristol, UK
R Mayer - Sciotech Yateley, UK
571 Study of Wind Energy Conversion SystemsTS Davies, CM Jefferson, H Nouri - UWE Bristol, UK
575 Distribution Fault Diagnostic Using Petri Net TheoryKL Lo, HS Ng - University of Strathclyde, UKJ Trecat - Faculte Polytechnique de Mons, Belgium
579 Major Causes and Mitigation of Voltage Dip in the Electricity Utility in
MalaysiaH Shaibon, AA Mohd Zin - Universiti Teknologi MalaysiaB Sawir - Tenaga National Berhad, MalaysiaKL Lo - University of Strathclyde, UK
583 Numerical Simulation of Photovotlaic Generators with Shaded Cells
R Hanitsch, V Quaschning - Berlin University of Technology, Germany
587 Long Term Performance Modelling of a Combined Energy Generation SystemD Child, IR Smith - Loughborough University of Technology, UK
591 Hardware and Software Simulations of Hybrid Generation SystemsC Cavallaro, A Raciti, S Musumeci - Universita di Catania, ItalyU Nocera, A Leotta - Research Institute for Renewable Energy & Energy Saving
595 Analysis of Hybrid Generation System Configurations Utilising RenewableSources
A Raciti, F Bonanno, A Testa - Universita di Catania, ItalyU Nocera, A Leotta - Research Institute for Renewable Energy & Energy Saving,
599 A Unified Model of the Electrical Power Network
KCP Wong, J Tindle, HM Ryan - University of Sunderland, UK
603 Modelling of the Conditions of the Transport System Network with the
Inductive Power Transmission at High FrequencyG Pivnyak, G Tchitaladze, Y Zrazhevsky - State Mining University of Ukraine
605 A Versatile Input Converter for Battery Charging in Renewable Energy Power
SystemsM Willows, P Lefiey - Leicester University, UK
609 Renewable Energy Generation Systems Embedded in Rural Grid SystemsAR Wallace, S Stapleton - University of Edinburgh, UK
613 Experimental Model for Testing the Distribution System On-Line ManagementR Grasso, F Lo Faro, A Pitrone, N Pitrone- University of Catania, Italy
xvi
617 Optimal Performance of Synchronous Generator with Boost Rectifier forVariable Speed Wind Turbine
AWK Chung, JAM Bleijs - University of Leicester, UK
621 Fuzzy Logic Control of Combined Heat and Power SystemsT Lunn, R Perryman - University of Greenwich, UK
Session 16: Drives & Machines IV
Chairman: Dr R Perryman, University of Greenwich
Thursday 7 September at 9.00 am, Arts Centre
625 A Digitally Controlled Real-time Rotor Resistance Speed Controller for a 3-
phase Slip Ring Induction Motor
P Kamoutisis - Greek National ArmyC B Rajanathan - University of Abertay, UK
629 SCR-Fed Asynchronous Motor Drives Regeneration Phenomenon
N Tcheir, DM Grant, FP Flynn - University of Strathclyde, UK
633 Some Preliminary Considerations about the Use of Luenberger's Observer in
Fully Digitalized Control System of LIM
F Abbruzzesse, G Celentano, E Pagano, G Gentile - University of Naples, Italy
637 Position Controlled Linear Motor Drive for Conveyor Systems
T Adam, F Toth, J Nagy - University of Miskolc
641 Improvements in Soft Start Controllers
WC Beattie, KP Lai - Queen's University of Belfast, N. Ireland
645 An Overview of Impact of NdFeB Magnets on Brushless dc Machines for
Future Aerospace Low Power Drives
LMC Mhango - Airscrew Howden Ltd
R Perryman - University of Greenwich
650 Simple Thoughts on Why ac Generator (Alternator) Parameters are Different
When Obtained From Different Tests
L Haydock - Newage International, UK
654 A Neural Network Based Fault Diagnosis Architecture for a Brushless Drive
Network
J Parker, R Perryman - University of Greenwich, UK
Session 17: Power System Protection U
Chairman: Professor A Bowden, Staffordshire Univeristy
Thursday 7 September at 9.00 am, Lecture Theatre
658 Protection Auditing of Mature Electrical Systems at Nuclear Power Stations.
NJ Griffiths, KA Johnson, D Balasingam - Nuclear Electric, UK
xvii
660 Secure Data Communications Over Distribution Feeder Circuits for Power
System Protection and Control
DP McGuinness - Westinghouse Signals Ltd, UK
MA Redfern, RF Ormondroyd - University of Bath, UK
664 A Graphical Information Display System for High Level Power System
MonitoringR Patel, L Kiernan - Reading University, UK
S Ironmonger, M Bradley, B Vaughan - National Grid Company, UK
667 Artificial Intelligence Techniques Applied to Adaptive Distance Protection
SP Websper, RW Dunn, RK Aggarwal, AT Johns - University of Bath, UK
671 Dynamic Modelling of Protection Signalling. Part I - Digital Test Bed
M Tumay, MS Buamud - University of Strathclyde, UK
675 The Application of Modern Multi-Function Microprocessor Relays to the
Protection of Distribution Plant
R Dickson, B Fletcher - London Electricity, UKMA Redfern - University of Bath, UK
679 Windows Based Power System Simulator for the Testing of Protection Relaysand Schemes
R Brown, P Crossley - UMIST, UK
P Gale - Hathaway Instruments, UK
682 Non-Unit Protection of Distribution Feeders
RK Aggarwal, ZQ Bo, AT Johns, PJ Moore - University of Bath, UK
Session 18: Power Electronic Devices and Applications H
Chairman: Dr WG Hurley, University College, GalwayThursday 7 September at 9.00 am, Gym 1
686 Digital Signal Processor Control Four Quadrant AD/DC Converters
W Hosny, A Chanerley, P Chyla, J Dubovsky, University of East London, UK
690 Condition Monitoring of a Static Power Inverter using Visual Basic Software
RA Lobley, GJ Evans, NA Haines - Royal Naval Engineering College, Manadon
694 Control of a Non-Linear Loads Driven by a DC-AC Converter
A Kern, B Yu - University of Siegen, Germany
698 The Evaluation of Modern Single-Phase Boost Converter TopologiesM Kamsara, A Szabo, ES Ward - Nottingham Trent University, UK
702 Optimized PWM Inverter Control Using Artificial Neural Networks
D Daniolos, MK Darwish, P Mehta - Brunei University, UK
xviii
705 AC Chopper with Near Unity Power Factor
MS Khanniche, FL Batshone - University of Wales, Swansea
709 Switched-Mode Power Supply Using Ferrite-Cored Transformer
J Richardson, GJJ Llewellyn-Rees - Brunei University, UK
713 Speed of Response of a Single Phase Advanced Static VAr CompensatorJB Ekanayake, N Jenkins - UMIST, UK
Session 19: Power Electronic Devices and Applications in
Chairman: Dr P Lefley, University of Leicester
Thursday 7 September at 11.30 am, Arts Centre
717 Steady State Performance of a 3-Level Advanced Static Var CompensatorD Scheidecker, S Tennakoon - Staffordshire University, UK
721 Single Phase Tap-Changer Using GTOs/ThyristorsMH Taha, T Green - Imperial College, UK
r
725 The Development and Design of a Universal Digital Control System for
Cycloconverter Drives Using Electronic Design Automation (EDA) TechniquesMN Cirstea, EB Patterson, D Morley - The Nottingham Trent University, UK
729 Magnetostriction and Vibration in Steel Heated by Induction
RT Baker, TN Oliver - Aston University, UK
733 Thyristor Switches for Mine Locomotives
AE Ivanov - State Mining University of Ukraine
737 A New Control Method for Quasi-Resonant Converters (QRCs)B Baha - University of Brighton, UK
Session 20: Power System Harmonics II
Chairman: Dr A Refsum, Queen's University, Belfast
Thursday 7 September at 11.30 am, Lecture Theatre
741 Harmonic Control Using Switched Filters in Rectifier Circuits
SR Matthews, WC Beattie - Queen's University of Belfast, N. Ireland
865 Diagnosis of Power Quality Problems Using Fault Tree Induction AlgorithmP Nolan - University College Galway, Ireland
745 A Multiprocessor-Based Closed Loop Voltage Control and Harmonic
Elimination for PWM Inverters
MS Khanniche, SK Abed - University of Wales, UK
749 Open and Closed Loop Control Techniques for Distortion Compensation by
Means of Active Filters
K Schipman, RE Morrison, Staffordshire University, UK
xix
753 Rectifier Circuit Analysis with Power Factor Connection
LG Mannion, WG Hurley - University College Galway, UK
757 Exact Supply Current Harmonic Analysis and Control of Forced Commutated
AC/AC ChoppersFJ Swift, PA Sadler - Manchester Metropolitan University, UK
CDM Oates - GEC Alsthom
Session 21: Power Delivery and Utilization UI
Chairman: Professor Dr TM Papagozlou, Technological Education Institute, Crete
Thursday 7 September at 11,30 am, Gym 1
761 Trading Energy in the Newly Privatised Electricity Supply Industry - An
Overview
AP Birch - Scottish Hydro-Electric pic, UKCS Ozveren - University of Abertay, UK
765 Transient Stability Enhancement by Optimal Control of HVDC Power Flow
TJ Hammons, WS Toh - University of Glasgow, UK
PA Kacejko, M Wancerz - Technical University of Lubin, Poland
769 A Simple Method for Stochastic Assessment of Voltage Sags
MHJ Bollen - UMIST, UK
773 An Accurate Fault Location Technique for Transmission Lines Using an
Artificial Neural Network
RK Aggarwal, M Joorabian - University of Bath, UK
777 The Emergence of Custom Power Technology in Distribution SystemsMM Osborne, RH Kitchin, HM Ryan - University of Sunderland, UK
781 Review of Maintenance Policy for Distribution Overhead Networks
U Lawler - ESB, Dublin
Poster Session D:
Chairman: Dr RC Seals, University of Greenwich
Thursday 7 September at 9.00 am, Gym 2
785 Measurement of Synchronous Machine Parameters; A Practical ExperienceS Salman, KS Smith - University of Aberdeen, UK
ID Stewart - BP Exploration, UK
789 Fast Prediction of Out of Step Condition by Artificial Neural Networks for
Power System Transient Stability Assessment
AY Abdelaziz - Ain Shams University, EgyptMR Irving - Brunei University, UKAM El-Arabaty, MM Mansour - Ain Shams University, Egypt
xx
793 An On-Line Decoupled Algorithm for State Estimation and Bad Data
Processing Using Hypothesis Tests
FPM Barbosa, IM Ferreira - Universidade do Porto,
797 Design, Analysis and Performance of Parallel Gause-Seidel Algorithm forPower Flow AnalysisEV Skibenko, JR McDonald - University of Strathclyde, UK
801 Design and Testing of Automatic Exploding Foil Changeover SwitchS Miran, VV Vadher, IR Smith, HR Stewardson - Loughborough University of
Technology, UK
805 Power System Simulation for Operational Training in Medium VoltageSystemsN Arnold - Rapas, Creieich
D Metz - Fachhochschule Darmstadt
J Schlabbach - Fachhochschule Bielefeld, Germany
809 Prediction and Performances of a Synchronous Generator Through a Delta-
Star Transformer K
KL Lo, H El-Khartroushi, R Alammari - University of Strathclyde, UK
813 Mathematical Representation of Ferroresonance in Single and Three Phase
SystemsM Tumay, MS Buamud, RRS Simpson - University of Strathclyde, UK
817 Synchronous Machines Simulation Data Treatment Through the Method of
Mixed Statistical Estimates
VA Shikhin - Frederick Institute of Technology, CyprusGP Pavluk - Moscow Power Engineering Institute
821 Dynamic Model of Hybrid Generation SystemsA Raciti, F Bonanno, A Consoli - Universita di Catania, ItalyU Nocera, A Leotta - Research Institute for Renewable Energy & Energy Saving
825 Effect of Desert Conditions on the Surface of Polymer Insulators
O El-Gendy, BA Arafa, A Sedeek, I Yassein, M Hamed - Egyptian Electricity
Authority, EgyptA Nosseir - Ain Shams University, Egypt
828 Proposed Ireland/South Wales Power Link: Steam Turbine-Generator Shaft
Torques Due to Steady Harmonic Ripple Currents Superimposed on the
HVDC Current in Asynchronous Links
TJ Hammons, TC Chua, KH Chew - University of Glasgow, UK
B Hinschberger - ENSIEG, France
xxi