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ENGR 570 - Coupled Electromechanical Systems

  • 3 credits
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Coupled electrical and mechanical systems and the analysis of energy transfer between these systems. Analysis of field energy and the relationship between electrical, mechanical and electromagnetic forces. Analysis and design of linear motors, servo-motors, DC and motors are presented. Other topics include inductively coupled charging circuits and vibrational modes that can arise between coupled electrical and mechanical systems.

Course Objectives:
Numerous practical applications require energy transfer between coupled electrical and mechanical systems. Through the examination of coupling fields and derivation of physics-based equivalent circuit representations, students will gain the ability to understand, model, and design a large class of electromechanical devices such as linear, servo, DC and AC machines. This course also provides a foundational knowledge for other courses such as robotics and hybrid electric vehicles.
Students successfully completing this course will be able to:
• Describe energy transfer between electromechanical systems through field coupling
• Model electromagnetic circuits and devices
• Interpret basic principles for drive systems
• Illustrate the basic principles of inductively coupled charging
• Explain the basic principles of vibrational modes


Circuit Theory Applications or Introduction to Electrical Engineering

Important Information

Military personnel admitted to a College of Engineering online degree program may be eligible for a 15% tuition discount. Tuition discounts can only be given if you provide the appropriate discount code at the time of registration. Call (877) 491-4336 or email to learn more.

Textbooks and Materials

Section 801


  • Electromechanical Motion Devices, 2nd Ed. (2012)
    Paul Krause, Oleg Wasynczuk, Steven D. Pekarek
    ISBN: 978-1118296127

Textbooks and materials can be purchased at the CSU Bookstore unless otherwise indicated.


James Cale
James Cale

Dr. James Cale is an Associate Professor in the Systems Engineering Department at Colorado State University, with joint appointment in the Electrical and Computer Engineering Department. His research focuses on the modeling, control and design optimization of energy sources and systems. His background and interests are in the areas of energy conversion, power-electronic drive systems, microgrids, finite-inertia power systems, computational and applied electromagnetics, design optimization, hardware-in-the-loop, and machine learning algorithms. Prior to joining CSU, he led the Integrated Devices & Systems group at the National Renewable Energy Laboratory in Golden, Colorado. Before that he worked in senior design engineering roles at Advanced Energy Industries and Orbital ATK (since acquired by Northrop Grumman). In 2022-2023 he served as Chief Technology Officer at Moser Energy Systems. James earned his doctorate in electrical engineering (with honors) from Purdue University, where he was funded by an NSF IGERT fellowship. He earned his BSEE from Missouri University of Science & Technology (summa cum laude). He is a member of Tau Beta Pi and is a Senior Member of IEEE.

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