Reluctance Motor – An Alternative to Permanent Magnets
Presented by: George Holling, Rocky Mountain Technologies
When: March 12th, 8:00 am - 5:00 pm
Registration: $495
As neodymium prices keep increasing dramatically the industry is looking for alternative motor designs. One such technology are reluctance motors that can deliver high efficiency and good power density without the use of any permanent magnet materials. This workshop will look at the types of reluctance motors that are available, i.e. variable switched reluctance motors and synchronous reluctance motors. The course will discuss the basic performance characteristics in detail and examine how they are similar and how they differ from permanent magnet motors and discuss the implications for certain application areas. The discussion will focus on noise, torque ripple and how to avoid these problems as well as differences in the motor construction that may lead to cost savings or problems if ignored. The course will also discuss the drive technology and topology for the different reluctance motor types. Design and application examples will be discussed to give a good overview that will deepen the understanding.
The course is targeted towards technical managers and designers who want to gain a good understanding of reluctance motors, the opportunities and the potential pitfalls associated with this technology and strategic managers and interested decision makers who want to fully understand the technical problems associated with reluctance motor: opportunities, challenges and myths.
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Field Oriented Control and Advanced AC Motor Control Algorithms
Presented by: Dr. Dal Y. Ohm, President, Drivetech, Inc.
When: March 12th, 1:00 pm - 5:00 pm
Registration: $395
The purpose of this course is to provide in-depth knowledge and skills in designing high performance AC motor drives. The course is intended for engineers who have prior knowledge in basic motor control theory or have some exposure in motor drive design. The course starts with the principles of FOC (field oriented control, aka vector control) and applies FOC in PM synchronous (both IPM and SPM) and induction motors. Discussion is followed by various advanced implementation techniques for high performance and energy efficiency including predictive current control, decoupling control, space vector modulation, field weakening operation, as well as sensorless motor control.
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Electric Motor Power Measurement & Analysis Workshop
Presented by: Bill Gatheridge, Product Manager • Yokogawa Corporation of America
Ian Walker, Vice President of Sales • GMW Associates
When: March 12th, 8:00 am - 12:00 pm
Registration: $295
This four hour workshop presented by Yokogawa Corp. will provide the attendees with a three step process for making precision electrical and mechanical power measurements on various Motors and Variable Speed Drive Systems. We will show how to make precision measurements and calculate the Energy Efficiency for motor and drive systems in industrial and automotive operations, and renewable energy applications such as wind turbines and solar equipment. A special section will be devoted to the Current Sensors required for use on Variable Frequency Drives and Inverter systems.
Attendees should leave with a working knowledge and understanding of how to make precision power measurements on complex distorted waveforms such as from a Variable Frequency Drive system. They will also learn about the instruments to use and how to make high accuracy measurements required for energy efficiency calculations on various types of power inverters.
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Reducing NdFeB Magnet Cost in Brushless PM-AC Synchronous Machine
Presented by: Jim Hendershot and Adrian Perregaux • Infolytica
When: March 12th, 8:00 am - 5:00 pm
Registration: $695
Design considerations and strategies for reducing the cost of the neo-magnets in brushless DC and PM-AC synchronous machines will be explored in detail. There are two methods that will be studied; the first is to create rotor configurations that can take advantage of the new ceramic materials which are significantly less expensive than NdFeB. The second method involves changes to the magnetic circuit (rotor, stator and air gap) to allow the reduction of the thickness of the NdFeB magnet.
These techniques require careful analysis of the thermal condition of the magnets beyond what is normally used for machine sizing. This necessitates the use of coupled electromagnetic-thermal simulation to optimize the minimum magnet mass, preventing demagnetization and meeting performance requirements.
An interactive design workshop will allow the attendees to apply these techniques to their own motor design.
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Interested in hosting a pre-conference workshop?
Contact Shannon Given for details. |
