| Project/Area Number |
21K14182
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 21040:Control and system engineering-related
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| Research Institution | Shimane University (2023)
Toyota Technological Institute (2021-2022) |
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Principal Investigator |
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | PAM and fuzzy control / IPMSM drive systems / SiC/GaN power inverter / Automatic excitation / Adaptive deadtime / Core and inverter losses / Reduction of harmonics / Finite element analysis / IPMSM drive system / Adaptive dead-time / Effects of control time / SiC/GaN inverter / Different deadtimes / PD-fuzzy control / Extended building factor |
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| Outline of Research at the Start |
A novel pulse-amplitude modulation control with a fuzzy-based automatic excitation angle scheme and adaptive deadtime algorithm is proposed and useful, that is assessed to reduce the interior permanent magnet synchronous motor core, copper and inverter losses in experiments and simulation.
Moreover, a detailed analytical model with the mutual consideration of effects of key components in the motor system and physical insights is studied to verify the measured results.
The proposed control can be effectively applied for direct motor drives or synchronous in-wheel motors used in electric vehicles.
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| Outline of Final Research Achievements |
- A novel pulse amplitude modulation (PAM) control with a fuzzy-based automatic excitation angle scheme was successfully developed and implemented in an experimental IPMSM drive under silicon carbide (SiC) inverter excitation at different rotational speeds. Furthermore, I successfully developed an adaptive dead-time algorithm for the IPMSM drive under inverter excitation.
- In addition, the IPMSM core loss, copper loss, voltage-current harmonics, and inverter loss were thoroughly evaluated. Mutual effects of the dead-time and control sample time at high switching frequencies on the motor core loss and inverter loss were assessed. Physic-based insights and explanations of the obtained results were also provided. Moreover, an isolated 2-phase buck-boost converter was researched for improvement of DC-bus control in motor drives. Simulation models in MATLAB and JMAG were also designed for numerical analysis on the core loss and harmonics of IPMSM. Ten related journal papers were published.
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| Academic Significance and Societal Importance of the Research Achievements |
I proposed a novel PAM control with fuzzy-based automatic excitation angle and an adaptive deadtime algorithm, that are useful for IPMSM drives in electric vehicle with reduction of motor and inverter losses. The obtained results can be treated as reference for design of high-efficient motor drives.
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