Presentations

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Keynote: An inside look at the forecast for the motor and drives market

Blake Griffin will be presenting the findings from the most recent edition of the motor and drive reports which published in November of 2022.

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Improved Startup and Slow-Speed Operation of Field Oriented Control (FOC) Algorithms

It’s well known that FOC is the king of motor control algorithms. It provides the highest energy efficiency and the maximum motor torque output when it is running in a closed loop. However, it’s Achille’s heel has always been that during motor startup and when running at very low speeds, the motor phase current feedback is not stable, and the motor runs open loop providing minimal torque and low efficiency.

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Panel Session: Motor & Drive Design and Efficiency

Electric motors are used across dozens of industries. With energy costs on the rise, performance, design and efficiency are a top priority for manufactures. This panel session will bring together 5 industry experts to look at the latest technology, solutions, challenges and trends in electric motor design & efficiency.

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Drive Simulation in the Design & Engineering Phases

Today’s machine builders are looking to speed up the time to market and reduce cost all while needing flexibility to make quick changes as unforeseen redesign and procurement issues come up. As we move forward to a digital world with advanced simulation tools at our ready having drive system simulation models that can help overcome this challenge and identify issues at early stages is now emerging as a game changer.

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Keynote: Addressing the Criticality through Sustainability and Traceability

Badrinath will demonstrate a state-of-the-art method as a common way of measuring environmental performance of rare earths with a blockchain based traceability tool including development of a metrics for sustainable mining, sourcing and the establishment of the global sustainability standard for permanent magnet motors.

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Leveraging Patents for Competitive Advantage of IoT and AI in your Powertrain Systems

Attendees will learn several best practices for how to strategically patent innovations in their motor and drive systems that use Internet of Things (IoT) and artificial intelligence (AI), including digital twins and software patents.  Your intellectual property (IP) strategy can bolster your competitive advantage—whether your invention relates to better manufacturing processes, predictive maintenance using AI or machine learning, or  a machine learning model that is trained on proprietary diagnostic data to improve your design, efficiency, performance, etc. 

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Distributed High Density (DHD) Winding for e-machines - Data review & developments

This presentation will explain how round enameled copper wires are used to reduce high-frequency losses, the number of welded points, and the overall production costs. We will also analyze the flexibility in the electric motor design and winding schemes and explain how we achieved a high filling factor with the research of perfect layering and the implementation of pole shoe preservation and a small slot opening.

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Experimental Evaluation and Optimization of GaN Inverter for Motor Drive Applications

The paper deals with the usage of Gallium Nitride FET transistors in an inverter for motor drive applications. The aim of the paper is to give guidelines to motor drive hardware designers on how to minimize the components and optimize the layout in a GaN inverter, while keeping good switching waveforms and minimizing the ringing as a possible source of electro-magnetic interference.

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Panel Session: Motor Compliance and Testing

Electric motor rules are evolving with new motors being added to the scope of federal regulations. It is vital that covered motor products are being properly tested for compliance to efficiency regulations. This panel will present recent regulations in effect in the United States along with a case study of test results from a group of newly regulated motors. The test results will be presented along with a statistical analysis of testing repeatability. The panelists will also review test methods and standards relevant in today’s market.

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Optimization of an Electric Motor Across Multiple Physics Domains

When considering optimization of a new electric motor design, designers will often work within a single physics domain, the effects of changes primarily aimed at improving a single variety of result, thermal, electromagnetic, etc. In reality, when a change is made to a design it can affect performance in many different ways but it can be difficult to take into account all these effects in a single simulation. Yet, these different domains interact in the real world, for instance as an electric motor heats up, it’s performance characteristics change as the material properties of its components change.

The goal of this presentation will be to demonstrate how we can construct automated multi-physics simulations appropriate for the optimization of an electric motor. By coupling electromagnetic results to thermal simulations, a better understanding of the motor performance vs temperature profile can be established. By applying an optimization loop to coupled simulation a designer can ensure maximum performance is maintained both from a electromagnetic and thermal standpoint. Attendees will be introduced to the coupled electromagnetic-thermal workflow, and to running optimization for performance in both physics’ domains.

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New adhesive solutions for assembly of high-performance lamination stacks

The current electrification megatrend has resulted in a drive toward higher efficiency machines.  Losses in these machines are comprised primarily of iron losses (including stator and rotor losses), friction losses, and stray load.  In an effort to minimize motor losses and increase efficiency manufacturers are implementing alternative methods of assembly for components that reduce the causes of these losses.  Bonding of individual lamination to form a rotor and stator is one method that is increasing in popularity as the performance benefits provide significant advantages. 

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Optimization of design and manufacturing processes of electric motors based on magnetic measurements

Accurate design and prediction of electric motor performance is not a trivial task. Motor design engineers make use of advanced numerical and analytical methods for electromagnetic and thermal analysis, and still find considerable differences in efficiency of modelled and manufactured machines.

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Torque Enhancement of Electric Motor using Asymmetrical Rotor Structure Design

The permanent magnet (PM) motor is one of the feasible solutions to the energy crisis and environmental pollution. Due to the high demands in power and torque density with overall high efficiency, the permanent magnet synchronous machine (PMSM) is mainly considered.

In this presentation, we shall discuss examples of symmetric and asymmetrical rotor structures and its concept. Then we will dive into the FEA-based simulation analysis using EMWorks electromagnetic simulation software. Finally, a comparison between the asymmetrical rotor with the conventional symmetrical rotor design for the interior PM motor will be performed under the same operating condition.

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Dynamic Motor Drive Propels Externally Excited Synchronous Motor to even Higher Efficiency

The electrification of the automotive industry is a transition being mandated by regulators and embraced by manufacturers. This electrification has resulted in increased use of electric motors which, in many cases, require rare earth elements. As the demand for these rare earth elements increase, the electrification of the automotive industry will be hindered by increasing cost and supply limitations.

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Avoid Costly Permanent Magnet Specification Mistakes

Join us for best practice suggestions for working with magnet suppliers to improve your legacy drawings, quality control processes, and understanding of magnetic measurements.

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New Efforts to Utilize Amorphous Foils in High Efficiency Electric Motors

Here we will discuss the approaches to incorporate amorphous ribbon into the motor components and the methods that have been industrially adopted. The Fe-based amorphous foils today are thicker (25 mm) with higher stacking factors (90%) and higher saturation levels (1.63T) than the historical foils.