All conference registrants are welcome to attend the educational short courses at no additional charge. Educational short courses are expected to be three hours in duration and are scheduled for Sunday, June 16, 2013. Tentatively, the morning short courses will start at 8:30 AM and conclude at 12:00 noon, with a 30-minute break from 10:10 AM until 10:40 AM. The afternoon short courses will start at 2:00 PM and conclude at 5:40 PM with a 40-minute break from 3:30 PM until 4:10 PM.
Short Course 1: Wireless Power Transfer (WPT) Systems
Sunday, June 16, 2013
8:30 AM – 12:00 PM
Venue: Regency A-B
Instructors: Dr. John Miller and Dr. Omer Onar
Course Description: Wireless power transfer (WPT) is a convenient, safe, and autonomous means for electric and plug-in hybrid electric vehicle charging that has seen rapid growth in recent years for stationary applications. WPT does not require bulky contacts, plugs, and wires, is not affected by dirt or weather conditions, and is as efficient as conventional charging systems. When applied in-motion, WPT additionally relives range anxiety, adds further convenience, reduces battery size, and may help increase the battery life through charge sustaining approach. In the 1990’s there were isolated cases of inductive charging and other non-contacting means proposed, but it was not until the mid-2000’s when DOE took interest, then in 2008 investigated evanescent wave power transfer, that private industry escalated their activities. Oak Ridge National Laboratory (ORNL) is now expanding its efforts to the charging of electrified vehicles in-motion.
This tutorial covers the essentials of magnetic resonance coupling and relevant aspects of WPT operation, an analytical approach to calculate the coupling coefficient of WPT, a control strategy based on grid-side power converter regulation, to optimize overall system performance, as well as modeling and simulation of WPT along with some experimental results obtained from the Oak Ridge National Laboratory. Experimental studies performed at the Oak Ridge National Laboratory covers the stationary and in-motion wireless power system operation results, performance of different coil designs, system characteristics under different switching frequencies, load clamping voltage, DC link voltage, high frequency inverter duty cycle, coil spacing, misalignment, foreign obstacles between the coils, insertion loss due to road surfacing materials, and the step-down transformer at the inverter input for increased inverter efficiency. The tutorial also covers some of the experimental lessons learned, as well.
Short Course 2: Power Electronics Thermal Packaging and Reliability
Sunday, June 16, 2013
8:30 AM – 12:00 PM
Venue: Regency C-D
Instructors: Dr. Patrick McCluskey1 and Dr. Avram Bar-Cohen1,2, 1University of Maryland, 2Defense Advanced Projects Agency (DARPA)
Course Description: Power electronics are the critical enabling technology for electrified transportation. Their widespread incorporation has resulted in significant improvements in efficiency over previous technologies, but it also has made it essential that the reliability of power electronics be characterized and enhanced. Recently, increased power levels, made possible by new compound semiconductor materials, combined with increased packaging density have led to higher heat densities in power electronic systems, especially inside the switching module, making thermal management more critical to performance and reliability of power electronics. Following a review of heat transfer principles and thermal management techniques, along with prognostic health management approaches to assess and ensure reliability, this short course will present the latest developments in the packaging, assembly, and thermal management of power electronic modules and systems, along with modeling and testing techniques. This course will emphasize thermal management techniques capable of addressing the reliability concerns associated with increased power levels, power density, and temperature in power electronic components.
Short Course 3: Overview of Power Electronics Product Development Cycle and Fundamentals of Charger Design
Sunday, June 16, 2013
2:00 PM – 5:40 PM
Venue: Regency A-B
Instructors: Dr. Fariborz Musavi and Dr. Deepak S. Gautam, Delta-Q Technologies Corp.
Course Description: This seminar provides the participant a detailed product life cycle from specification review to design validation testing in high reliability power electronics products for industrial and automotive battery charging applications. It covers fundamental aspects of single stage versus two stage topologies in battery charging applications from characteristics of subsystems to component level requirements. The first part of the presentation will cover topics on topology selection, semiconductor and passive components selection and feedback control considerations for battery charging application. Charger operating strategies and controls are explained in the light of meeting transient and regulatory requirements. Technical details about charger performance, protections, and use of various simulation packages will also be covered. The second half of the seminar will emphasize on a practical product development cycle for designing an industrial and automotive battery charger. Thermal management techniques along with mechanical packaging considerations for design for manufacturability (DFM) will also be discussed. Some of the most common design and analysis techniques like DFMEA and WCCA will also be presented with examples. A typical test setup for testing a battery charger performance in the lab will be presented along with details for selecting some of the commonly used test and measuring test equipment. Examples from some of current product models are used to explain the current state of art of battery chargers. Potentials and challenges of industrial and automotive battery charging are also discussed.
Short Course 4: Design and Optimization of Traction Motors with ACE+ Suite
Sunday, June 16, 2013
2:00 PM – 5:40 PM
Venue: Regency C-D
Instructors: Kunal Jain and Emmanuel Bot, ESI Group
Course Description: The development of a low-cost, high-performance interior permanent magnet (IPM) traction motor is essential to large-scale commercialization of Electric Vehicles. The traction motor not only drives the propulsion of the vehicle but also recharges the battery through regenerative braking. Additionally, the motors must operate consistently under extreme hot and cold temperatures along with varied road conditions. The key design barriers include the need of higher operating temperatures, increased energy density, durability, and reduced weight. The design and optimization process of the motors must help engineers address the above barriers. These challenges can be addressed in a systematic fashion with ACE+ Suite.
ACE+ Suite is an ideal engineering design and analysis tool used by over 400 organizations worldwide because of its strong advanced CFD/Multiphysics capabilities. Moreover, ACE+ Suite couples CFD, Electromagnetics, Structural, and Plasma solutions with each other. Its modular and expandable structure means users can enjoy a high degree of flexibility in terms of functionality and cost. ACE+ includes state-of-the-art numerical and physical models, and advanced pre- and post-processing modules. All grid technologies are supported, including multi-block structured, general polyhedral unstructured, arbitrary interfaces, and moving and deforming grids. It also supports most of the commonly used CAD, CAE and EDA data formats for optimum flexibility.
In the first half of the tutorial, we will provide an overview of electromagnetic capabilities of ACE+ Suite. Topics covered will include fundamentals of electromagnetics, losses in permanent magnets, eddy currents, skin effects. Subsequently, we will discuss multiphysics phenomena such as Joule heating, Inductive Heating. We will also discuss how CFD users can easily perform parametric analysis and optimization studies, and customize and automate their own design process. In the second half, we will run through a few sample problems on the concepts covered in the first half. The participants will leave the seminar ready to explore the world of multiphysics in design and optimization of traction motors.
