2022 Fiscal Year Research-status Report
A Novel Pulse-Amplitude Modulation Control with Fuzzy-based Automatic Excitation Angle and Adaptive Deadtime for Motor Drives in Consideration of Core Loss
| Project/Area Number |
21K14182
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| Research Institution | Toyota Technological Institute |
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Principal Investigator |
NGUYEN GiaMinhThao 豊田工業大学, 工学(系)研究科(研究院), 助教 (40895710)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Keywords | PAM and fuzzy control / IPMSM drive system / SiC/GaN inverter / Automatic excitation / Different deadtimes / Core and inverter losses / Reduction of harmonics / PD-fuzzy control |
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| Outline of Annual Research Achievements |
- An improved pulse amplitude modulation (PAM) control method based on fuzzy logic with automatic excitation angles (120-180 deg) was successfully developed and implemented in the experimental IPMSM drive system excited by a silicon carbide (SiC)-MOSFET inverter. In addition, a novel auto-tuning proportional derivative (PD) control scheme based on fuzzy logic for the IPMSM current harmonics to lower the motor copper loss and SiC inverter loss was proposed and evaluated in experiments.
- The impacts of dissimilar dead-times and control sample times of the SiC-MOSFET inverter on the IPMSM core loss and inverter loss with the pulse width modulation (PWM) technique at high carrier frequencies of up to 200 kHz were experimentally performed. The effects of the gallium nitride (GaN)-FET inverter and output LC filter on the IPMSM losses and inverter temperature with the PWM technique at high carrier frequencies of up to 400 kHz were conducted in experiments.
- Furthermore, the IPMSM control system in MATLAB/Simulink and its finite element analysis (FEA) models in JMAG to assess the core loss of the IPMSM excited by the inverter were developed. The analysis results were compared to the experimental findings. Besides, the extended building factor to thoroughly analyze and evaluate the increase in the IPMSM core loss under the sinusoidal and inverter excitations was designed.
- The achieved research results in FY2022 were published in IEEJ Journal of Industry Applications, international conferences (IPEC-Himeji 2022, IEEE ICCE 2022, SICE ISCS 2023), and domestic conference IEEJ IAS 2022.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
In fact, I have conducted related research themes since June 2018, so I have had significant knowledge, expertise and experience regarding this research project. Moreover, I have received the enthusiastic and effective support from the head professor (Prof. Dr. Keisuke FUJISAKI) and students at our Electromagnetic Energy System Laboratory in Toyota Technological Institute, as well as numerous academic research collaborators. Hence, the main contents (including experimental motor drive systems, measurement equipment and techniques, control methods, measured results, analysis models, simulation systems, publications, so forth) and progress of this research project are currently smooth and on schedule.
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| Strategy for Future Research Activity |
- In FY2023, I focus on developing and implementing my proposed dead-time scheme based on fuzzy logic in the experimental IPMSM drive system under the SiC-MOSFET inverter excitation. The IPMSM core loss, copper loss, torque response, and SiC inverter loss are measured. After that, the experimental findings will be thoroughly analyzed and assessed. The physic-based insights and explanations of the obtained results will be also provided.
- Furthermore, high-efficiency buck-boost DC-DC converters will be concisely studied for the future improvement of the DC-link voltage control in the IPMSM drive system.
- Moreover, regarding key research publications of this project: In April 2023, my research paper on the effects of high switching frequencies and different dead-times of the SiC-MOSFET inverter on the IPMSM core loss was submitted to a refereed academic journal; thus, I will carefully revise this paper to publish in the journal. Then, I will submit another research manuscript regarding my proposed fuzzy-based PAM control method with an automatic excitation angle scheme for the IPMSM drive system to a prestigious refereed journal.
- In FY2023, MATLAB/Simulink and JMAG software will be used to perform the detailed simulations and finite element analysis on the core loss, copper loss, and torque ripples of the IPMSM under the proposed fuzzy-based PAM control method and dead-time scheme. The main objective is to verify the experimental findings. Furthermore, other measured results with the GaN-based IPMSM drive system will be additionally assessed.
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| Causes of Carryover |
The incurring amount will be used to buy a high-accuracy contact-thermal sensor for the experimental motor prototype used in this research project.
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[Presentation] A Single-Phase Transformerless Buck-Boost Inverter with Common Ground Feature2022
Author(s)
Dai-Van Vo, Duong Truong-Duy, Minh-Khai Nguyen, Nguyen Gia Minh Thao, Tan-Tai Tran, Young-Cheol Lim, and Joon-Ho Choi
Organizer
2022 IEEE 9th International Conference on Communications and Electronics (ICCE 2022), pp. 507-512, Nha Trang, Vietnam, DOI: 10.1109/ICCE55644.2022.9852077
Int'l Joint Research
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