ICEMS2017 Keynote Presentation
Design Optimization of IPMSM for Electric Vehicle Propulsion
In Terms of NVH Characteristics and Energy Consumption
Eco-friendly vehicular market has been expanding remarkably in accordance with concern for environmental issue and regulation on emission, while propulsion motor has gained its importance as well. Conventional motor design has mostly focused on producing higher torque in compact size owing to space availability in vehicle. However, recent research has started to focus more on NVH (Noise, Vibration, and Harshness) and energy consumption of propulsion motor for user commitment to better driving performance and fuel efficiency. In this presentation, design technology of IPMSM (Interior PM Synchronous Motor), which is regarded as the best candidate for propulsion motor on account of better torque density and wide operating speed, will be addressed to optimize NVH characteristics and energy consumption. In particular, stochastic and deterministic optimization algorithms have been coupled into memetic one for optimal design of IPMSM with the superiority in reliable and faster convergence to design optimum. Meanwhile, torque ripple and electro-magnetic force harmonics are the main sources of noise and vibration, which should be suppressed as design objective throughout optimal design of IPMSM for improving NVH characteristics. Moreover, variety of operating points specified from the vehicle¡¯s running on roads has its own efficiency according to the control strategy, which manifests the statistical energy consumption of motor and fuel efficiency of vehicle after all. Likewise, multi-purposed optimal design of IPMSM to optimize the efficiency map compatible to the best fuel efficiency has been performed with the design example of purposely built IPMSM for electric vehicle propulsion
Professor Sang-Yong Jung
Sungkyunkwan University, Korea
Sang-Yong Jung received the B.S., M.S., and Ph.D in electrical engineering from Seoul National University, Seoul, Korea in 1997, 1999, and 2003, respectively.
From 2003 to 2006, he was a Senior Research Engineer in R&D Division, Hyundai Motor Company, Korea, mainly researching on the electrical propulsion system for hybrid electric vehicles and electrical vehicles. He joined the faculty as an assistant professor in Department of Electrical Engineering, Dong-A University, Busan, Korea in 2006, and since 2011, he has been an associate professor in the College of Information and Communication Engineering, Sungkyunkwan University, Suwon, Korea.
He is very active and enthusiastic on research on numerical analysis and optimization of the applied electromagnetic system so that he has published more than 76 SCI(E) papers so far, and most of them have been issued at IEEE Transactions papers in association with ICEMS. Moreover, he has research and development capability to perform the industry-collaborative projects so that he performed more than 70 projects throughout his expertise career as a professor in universities for 10 years.
Specifically, he has the strong academic capability to research on optimal design and numerical methodologies of electric machines developed with the in-house FEM code and optimal design program based on C++ language. In addition, he has introduced the variety of optimization algorithm like Adaptive GA and PSO, Memetic Algorithm with MADS, intelligent Optimization Code, and multi-objective optimization process via COMPUMAG.
In the application of electromagnetic field system, he has been experienced with every type of electric machines, such as classical types of PMSM, BLDC, IM, SynRM and special types of Flux Switching Machines, Variable Flux Machines, Claw-Pole Machines, Linear Machines, Axial-Gap Machines, Magnetic Gear, and etc. From the industrial perspective, his outstanding research accomplishment and contribution will be the electric-propulsion system technologies on electric transportation system(HEV, EV, Electric Train, Electric Ship, and Unmanned aircraft) and home appliance(Washing machine, Refrigerator, Dish Washer, Vacuum Cleaner, and Air-Conditioner). Also, he has been experienced with the exclusive technologies with high-powered special machines in Korea, such as 15 MW-Hydrogenerator, 6MW-Wind generator with PM buried, 5MW-Military vessel and etc.
Lately, he has been pursuing for the coupled analysis of multi-physics based engineering, in association of Electromagnetic field analysis, structural analysis, thermal field analysis, and etc. Furthermore, he has been devoting himself to implement the synthetic design and assessment platform of electric machines with the automated GUI-based optimal design program and RT-based Inverter coupled simulator.