Conference Tutorials

All tutorials are scheduled for Sunday, September 30, 2001. Tutorials may be cancelled due to insufficient enrollment. CEU credit can be obtained for a tutorial by registering for and attending the tutorial, providing the necessary information to have the CEU credit registered in the IEEE CEU database, and paying a $10 CEU registration fee in addition to the tutorial registration fee.

MITIGATION OF VOLTAGE SAGS FOR INDUSTRIAL LOADS
Organizer: Geza Joos (Concordia University)
Sponsoring Technical Committee: Industrial Power Converter
Presenters: S Bhattacharya; G Joos
Advance registration fee: $100
On-site registration fee: $150
CEU credit: 0.4
Schedule: 8:00 a.m. – noon

Abstract: Various studies and surveys have shown that voltage sags are a major power quality problem in distribution systems. The impact of voltage sags and swells on "sensitive" industrial loads such as semiconductor processing plants, paper mills and textile industries may be severe in terms of loss of production and material, and loss of revenue. This tutorial focuses on state-of-the-art technologies for voltage sag mitigation, including field installation results and performance of these devices for various industrial applications. The tutorial also introduces the concept of integrating energy storage or energy conversion devices into these devices. Comparisons are made between various technologies and with uninterruptible power supplies and distributed generation. Available and proposed standards are also discussed. Available industrial equipment for sag mitigation will be presented.

HIGH POWER RECTIFIERS
Organizer: Geza Joos (Concordia University)
Sponsoring Technical Committee: Industrial Power Converter
Presenters: A Stevenson; J Galloway
Advance registration fee: $100
On-site registration fee: $150
CEU credit: 0.4
Schedule: 1:00 – 5:00 p.m.

Abstract: This seminar deals with several current approaches to high power (up to 50 MW) ac-dc power supplies. These supplies are used in various industrial applications including electric arc furnaces, electrochemical and electro-winning processes such as those used to produce chlorine, sodium chlorate, aluminum copper and zinc. The tutorial will describe the circuit details of various approaches, using diode and thyristor converters and IGBT/IGCT choppers. Comparisons will be made between these different approaches, on the basis of complexity, efficiency, power factor, line harmonics, reliability and protection issues. Conclusions will be drawn regarding the more suitable approach for a particular application. Existing and proposed standards are discussed.

ADVANCED SIMULATION OF POWER ELECTRONICS AND MOTOR DRIVES USING PSPICE
Organizer: Michael Giesselmann (Texas Tech University)
Sponsoring Technical Committee: Industrial Drives
Presenters: Michael Giesselmann
Advance registration fee: $100
On-site registration fee: $150
CEU credit: 0.4
Schedule: 8:00 a.m. - noon

Abstract: Given the steady increase in available computational power in personal computers and advances in modeling software, modeling of power electronics and electric drives is fast becoming a viable design option for practicing engineers as well as for education and research.

PSpice® has recently emerged as a excellent tool for the above mentioned applications due to its very powerful, nearly full capability evaluation version, its wide use in EE curricula throughout the country and its intuitive, easy to learn graphical interface. In addition there is widespread support on the internet for PSpice® models. More advanced users can upgrade to the full version. All popular versions of PSpice® will be supported.

In this tutorial, we will specifically address modeling and simulations of power electronic converters and motor drives and provide ready to run examples that dramatically cut the lead-time for participants that want to generate their own simulations.

The examples include:

- Dynamic models for induction machines.
- Direct, Indirect, and Speed-Sensorless Vector Drives.
- Derivation of Vector Control Equations and Basics.
- Electronic Power Factor Correction

The tutorial is based on the PSpice® simulation package which is worldwide probably the most widely used simulation code. However casual and not so casual users often complain about problems with transient stability when PSpice® is used for Power Electronics type applications. With the models and methods in this tutorial, these problems can be virtually eliminated. The participants will obtain a large number of working examples with many advanced custom parts on a diskette. All of the examples on the diskette will run on the free evaluation version of the program. It should be noted that although the name PSpice® is the name of the actual simulation engine, which is one of the programs in the simulation package, it is often used to refer to the complete package.

THERMAL DESIGN OF ELECTRIC MOTORS AND GENERATORS
Organizer: David Staton (Motor Design Ltd)
Sponsoring Technical Committee: Electric Machines
Presenters: David Staton
Advance registration fee: $150
On-site registration fee: $200
CEU: 0.8
Schedule: 8:00 a.m. – 5:00 p.m.

Abstract: Thermal aspects of motor design have traditionally received much less attention from motor designers than electromagnetic issues. Motor designers commonly originate from an electrical engineering background, often having limited understanding of thermal analysis. This tutorial aims to address the imbalance by advancing understanding of the thermal behaviour of BPM, PMDC, IM and SR motors and generators.

The three modes of heat transfer, i.e. conduction, convection and radiation, will be explored together with methods for analysing their individual contribution to heat transfer within electric machines. For instance, convection correlation formulations applicable to housing cooling fins will be presented. Simple rules of thumb, thermal lumped-circuit analysis, finite-element analysis (FEA) and computational fluid dynamics (CFD) will be investigated as methods of motor thermal design.

Manufacturing techniques which have been developed to augment cooling will be reviewed. Important material thermal characteristics will be discussed, including some new materials which have been introduced to improve cooling.

IEEE YELLOW BOOK: GUIDE FOR MAINTENANCE, OPERATION, AND SAFETY OF INDUSTRIAL AND COMMERCIAL POWER SYSTEMS
Organizer: Lanny Floyd (DuPont)
Sponsoring Technical Committee: Power Systems Engineering
Presenters: Lanny Floyd; Joe Andrews; John White; Mary Capelli-Schellpfeffer
Advance registration fee: $100
On-site registration fee: $150
CEU: 0.4
Schedule: 1:00 – 5:00 p.m.

Abstract: The IEEE Yellow Book provides plant engineers with a reference source for the fundamentals of safe and reliable maintenance and operation of industrial and commercial power systems, regardless of size or complexity. The most effective utilization of the information contained in this guide would be its inclusion in a long-term maintenance and operation strategy that is tailored to the individual needs of each power system. This strategy would ensure long-term reliability and would need to include a procedure for auditing the performance. Information is provided to offer guidance for the establishment of administrative procedures, control procedures, and the organizational capabilities to ensure reliable system operation. The level of performance reliability is stressed and several maintenance strategies are reviewed including record-keeping, testing and inspection methods, and auditing maintenance and operation performance. Several chapters in the book are devoted soley to safety issues, such as a review of safety equipment and recommendations for the management of unusual or hazardous activities. Thus, safety and reliability are the key issues of this practice. This tutorial will provide attendees with a working knowledge of its contents and enable effective application.