|
Biomedical Engineering Course Prof. Kazuhiro MURAMATSU E-mail:muramatu [at] cc.saga-u.ac.jp (Please replace [at] with @ in e-mail address.) Academic Staff Database |
 |
|
Research Field : Magnetic Field Analysis, Electrical Machine
Membership in Academic Societies :
IEEE, International Compumag Society, IEEJ, MSJ, AIJ
IEEE, International Compumag Society, IEEJ, MSJ, AIJ
Overview
Nowadays, to develop high-performance electrical machines and magnetic devices, numerical simulation techniques are widely used instead of ordinary experimental methods of trial and error. However, when new products are developed, simulation techniques are not established enough sometimes. So, in our laboratory, to simulate phenomena which were not able to be simulated, high-level simulation techniques are developed. Moreover, high-performance electrical machines and magnetic devices are developed in cooperation with companies using developed simulation techniques. On the other hand, international exchanges, such as international co-research projects and acceptance of foreign students, are also carried out actively.
Developments of Various Simulation Techniques
Various high-level simulation techniques, such as "Method of Eddy Current Analysis of Moving Conductor" which can obtain stable results even if conductor moves at high speed for eddy current braking system and magnetic bearing system, "Method of Magnetic Field Analysis with Nonconforming Mesh" which can change the positions of moving parts freely for actuator and motor, "Modeling of Laminated Core" which can take account of laminated structure and eddy current in each steel plate for electrical machines, "Method of Coupled Analyses" which can evaluate not only magnetic performance but also temperature, mechanical strength, and noise, etc., are developed.
Developments of High-Performance Electrical Machines and Magnetic Devises
Using the developed simulation techniques, the improvements of electrical machines, such as "Loss Reduction of Magnetic Bearing System for Power Storage System", "Loss and Noise Reduction of Reactor Under Inverter Power Supply", "Improvement of Starting Characteristic of Induction Motor", etc. are carried out in cooperation with companies. Moreover, new developments, such as "Open-Type Magnetically Shielded Room for MRI", "Metallic Implant Without Artifact by Combining Paramagnetic and Diamagnetic Materials for MRI", "Non-Invasive Measurement of Water Content and Chloride Concentration in Concrete by Measuring Impedance", etc. are also investigated in cooperation with companies (See Fig. 1).
International Exchanges
More than 10 foreign students from Asian countries joined and studied in our laboratory since 2001. Moreover, the academic exchange with School of Electrical Engineering, Wuhan University, China, in which mutual visit of academic staff and students and seminar on "High Voltage and Electric Power Apparatus" are held every two years, has been carried out since 2009 in the International Partnership Education Program managed by the Graduate School of Science and Engineering, Saga University. (See Fig. 2)
Instruction of Students on Research
Students are instructed to accomplish their own researches independently after getting topics. Moreover, to development their social and international abilities, they are encouraged to work on their researches independently from meetings to reports in the co-research projects with companies and present their researches by themselves in international conferences (See Fig. 3).
Summary
Prof. Kazuhiro Muramatsu has published more than 50 journal papers in IEEE Transaction on Magnetics, which includes co-research projects with more than 10 companies, until now. He received the Distinguished Engineering Service Award from the Engineering Advancement Association of Japan in 2007. He is also a Visiting Professor of School of Electrical Engineering at Wuhan University, which is appointed through the Recruitment Program of High-end Foreign Experts, China since 2015. |
 |
 |
 |
