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Affiliation |
Faculty of Engineering, Division of Intelligent Systems Engineering |
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Job Title |
Specially Appointed Associate Professor |
SHIMIZU Yuki
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Degree 【 display / non-display 】
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Doctor of Engineering - Osaka Prefecture University
Campus Career 【 display / non-display 】
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2025.10
Duty Yokohama National UniversityFaculty of Engineering Division of Intelligent Systems Engineering Specially Appointed Associate Professor
Papers 【 display / non-display 】
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Experimental Data-Driven LSTM Modeling for IPMSM Drive Systems
Shimizu, Y; Akatsu, K
IEEE ACCESS 14 57463 - 57474 2026
Language：The in addition, foreign language Publishing type：Research paper (scientific journal) Joint Work
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Frequency Control of S-LCL Wireless Power Transfer Using Parity-Time Symmetry Theory
Aratani, R; Shimizu, Y; Kawabata, Y
IECON 2025-51ST ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY 2025
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Shimizu, Y
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 71 ( 11 ) 14600 - 14609 2024.11
Language：Japanese Publishing type：Research paper (scientific journal) Joint Work
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Sanada Masayuki, Shimizu Yuki, Morimoto Shigeo, Inoue Yukinori
IEEJ Journal of Industry Applications 13 ( 4 ) 400 - 408 2024.7
DOI Web of Science CiNii Research
Language：English Publishing type：Research paper (scientific journal) Publisher：一般社団法人 電気学会 Joint Work
<p>Maximum torque per ampere (MTPA) control is a typical control method for achieving a high-efficiency operation for interior permanent magnet synchronous motors (IPMSMs). However, inductances of IPMSMs with magnetic saturation, vary depending on the current; thus, obtaining the MTPA condition is difficult. This study developed an online MTPA angle search method for IPMSMs with cross-saturation. In the proposed method, a flux-linkage plane is modeled and the model parameters are identified using the recursive least squares (RLS) method. The proposed method searches for the optimum current phase angle (MTPA angle) achieving MTPA control based on the gradient ascent method using the parameters identified for the flux-linkage plane model. This study conducted various experiments to evaluate the performance of the proposed online MTPA angle search method. The effectiveness of the method was demonstrated.</p>
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Effect of Parameters on Coupling Coefficient Estimation in SP-type WPT Systems
Hiroki Sugihara, Ryota Aratani, Yuki Shimizu, Yoshitaka Kawabata
Journal of the Japan Institute of Power Electronics 50 ( 0 ) 167 - 167 2024
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Power Electronics Joint Work