| 研究課題/領域番号 |
20K14720
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| 研究機関 | 京都先端科学大学 |
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研究代表者 |
Tripathi Ravi・Nath 京都先端科学大学, ナガモリアクチュエータ研究所, 助教 (00869745)
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| 研究期間 (年度) |
2020-04-01 – 2023-03-31
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| キーワード | Power Devices / Parallel Connection / Gate Control / Balancing |
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| 研究実績の概要 |
The high-voltage experiment system (safety box) is established at the new laboratory to test the devices at higher voltage with safety precautions. That is equipped with high voltage power supply and discharging system.
Further, the intelligent balancing is performed to different power devices to achieve better performance in terms of switching as well as an overall performance of power device. The different types of technique for paralleling is used. One is as a hybrid switch that is paralleling of GaN and SiC to enhance the overall switch concept. That provides the better reverse conduction as well as avalanche capability.
Another paralleling concept was performed for the two-parallel connected SiC switch with different threshold voltage. And, the active balancing during switching transient as well as steady state is achieved. The threshold voltage measurement is also performed to characterize the device parameters.
One international conference paper on hybrid-switch is submitted to IEEE-ISPSD conference and accepted for the presentation and publishing on IEEE. Another conference paper is submitted for the review considering the parallel operation of SiC swithces.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
2: おおむね順調に進展している
理由
The research is mainly planned to work with a single device and now it is performed considering two different approaches. One is hybrid parallel switch and another is paralleled single type switch. So, there are different devices and approach has been adopted to achieve intelligent balancing and operation of the devices that is vital to improve the converter performance.
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| 今後の研究の推進方策 |
The future plan is to do it with more number of devices in parallel as well as use of hybrid switch in some application such as dc-dc converter basic circuit. In addition. the plan is to develop simulation models to investigate more thoroughly the effect of device parameters corresponds to the system unbalancing.
Also, the journal and conference dissemination is planned considering the further experimental results.
For the future 2-3 years plan the AI technique is planned to achieve intelligent balancing non-direct local communication.
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| 次年度使用額が生じた理由 |
The plan was to buy some equipment's like oscilloscope and probes that will be bought this fiscal year. To manage the money for those equipment.
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