Objectives and Benefits

You are invited to attend this complementary seminar to learn how to overcome challenges in improving the accuracy of AC Machine Drive Designs, including Sensor-less Drives.

This course will show you how to use finite element analysis to gain deeper insight into the induced voltage and inductance required to obtain the rotation position.

You will discover how to achieve the most efficient motor drive systems, with a better understanding of the physical aspects that range from current and voltage to rotation angle.

“Advanced AC Drive Designs Using FEA to Achieve High Performance Control” is a free seminar that will provide you with a foundation in finite element analysis for the control of AC drives.

Those who will benefit:

• Motor design engineers
• Application engineers, especially for EV, HEV and, UAV Wind Energy
• Suppliers to motor manufacturers
• Control engineers
• Engineering and R&D managers
• Others who specify, design, analyze, manufacture or service IPM or BLDC machines

You should have some background in electric machine operation and construction such as the equivalent of a B.S. degree in engineering. Understanding of basic magnetic circuits is needed, but advanced motor theory and control techniques are not essential.

Event Overview and Introduction

Course Schedule

1st session 13:00-16:15

13:00-13:45 Challenges of Drive Designs

– Challenges of AC machines
(Induction Machines, Interior Permanent Magnet Machines)
The essentials of predicting and modeling nonlinear and dynamic characteristics of machines
How to determine and validate the equivalent machine model parameters
– Challenges of the Controller
The essentials of predicting and modeling the characteristics defining the system’s behavior, such as current, voltage, harmonics, and phase angle used for high performance control

13:45-14:30 Introduction to JMAG

– The Concepts behind the Virtual Test Bench
– An overview of each feature including various applications and evaluation parameters
– An introduction to realistic application examples
Induction Motor for Efficiency Optimization
Interior Permanent Magnet motor for Traction Drive

14:45-16:15 Detailed Analysis Examples (*working model files will be given out)

– FEA for PM machines–Interior Permanent Magnet machines
Shows an example used for key characteristics such as BEMF, Speed-Torque curve
– Inductance calculation for PM machines
– Equivalent circuit model for PM machines
– FEA for IM
Shows an example used for basic characteristics such as I-T, s-T
– Inductance calculation for Induction Machines
– Equivalent circuit model for Induction Machines
– Evaluation of iron loss accounting for stress dependencies
– Evaluation of Joule loss for magnets accounting for segmentation
– Evaluation of heat generation
– Evaluation of vibration and noise
– SILS, HILS

2nd session 16:30-19:00

16:30-17:00 Applying CAE to AC Drive Design

– JMAG-Express
– JMAG-RT

17:00-17:30 Operating JMAG-Express and JMAG

– Predicting the characteristics of AC machines
– Generate the parameters for a motor model
– Simulate a motor system using a motor model
17:30-19:00 Reception for Participants

A reception will be hosted providing a venue for what we hope will be an invaluable technical exchange of information.

* The contents of the program are subject to change without notice.

Instructor

Dr. Keith W. Klontz is President and CEO of Advanced MotorTech LLC, a computer-aided engineering services company with emphasis on electric machine and magnetic component design. He holds BS & MS degrees in Electrical Engineering from the University of Illinois, Champaign-Urbana, and a PhD in Electrical Engineering from the University of Wisconsin-Madison. Dr. Klontz is a world-recognized expert in electric machine design and application with over 35 years hands-on experience with electric machine design engineering, from concept to performance to failure analysis. He has been involved in the research, development and testing of very high performance machines and drives from 10 Watts to 8 MW, with speeds ranging from angle positioning torque-motors to 60,000 rpm machines. Recent work includes developing analysis and design techniques for permanent magnet alternators, brushless d.c. motors, brush d.c. motors, high efficiency induction motors, and very high power density machines.

Seminar Report

The “Advanced AC Drive Designs Using FEA to Achieve High Performance Control” seminar was held in the United States in Madison, Wisconsin. Corresponding with the “Dynamics and Control of AC Drives” seminar held by the University of Wisconsin-Madison, this seminar, hosted by the JSOL Corporation, discussed the fundamentals of motor and motor drive design as well as the cutting-edge solutions using FEA.
Dr. Keith W. Klontz, President of Advanced Motor Tech LLC, not only discussed theoretical approaches based on his vast experience, but also discussed the practical knowledge required for actual motor and drive design in addition to specific ways to utilize FEA.
Dr. Howard Li from Powersys and Yusaku Suzuki from the JSOL Corporation also provided a hands-on demonstration using JMAG and a circuit/control simulator to actively apply what was taught and offer an even deeper understanding of the material. At the reception arranged by David Cottini after the “Advanced AC Drive Designs Using FEA to Achieve High Performance Control” seminar, participants were able to meet others that attended while promising to make the next day’s seminar an even great success.

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