2018 Fiscal Year Research-status Report
Establishment of Complete Theory on Resonance, Energy Transfer Mechanism and Efficiency Maximization for Multiple-Input Multiple-Output Inductive Power Transfer
| Project/Area Number |
18K13758
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| Research Institution | Nara Institute of Science and Technology |
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Principal Investigator |
DUONG QuangThang 奈良先端科学技術大学院大学, 先端科学技術研究科, 助教 (40757811)
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| Project Period (FY) |
2018-04-01 – 2020-03-31
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| Keywords | maximal efficiency |
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| Outline of Annual Research Achievements |
This project is initially divided into five work packages (WPs): WPs 1, 2 and 3 are scheduled for FY2018; WPs 4 and 5 are for FY2019. Fortunately, we could manage to finish WPs 1, 2, 4 and 5 by three journal papers and five conference papers/talks published.
In WPs 1 and 2, we have successfully derived the resonance condition, optimal input currents and loads to achieve the maximal efficiency for general MIMO-IPT system. In WP 4, we have developed an algorithm to control the transmitter currents to minimize the power loss while charging all the receivers with the power level that they require. In WP 5, by applying the theory developed in WPs 1 and 2, we could reduce the transmit power in each transmitter while focusing the RF energy toward the target receiver.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
Currently, we are developing the results of WP 4. We are performing extensive experiments to thoroughly evaluate the capability of using multiple transmitters to divide power flow from a single source and guide them toward multiple receivers. With many positive results, we have summarized this topic and submitted a journal paper for review.
Meanwhile, we are working on the WP 3 which is about using Poynting vector to illustrate the power transfer mechanism in MIMO-IPT systems. We have successfully developed Poynting vector formulas and could reveal the energy transfer mechanism in some specific configurations. Currently, we are developing these formulas for other configurations of the transmitters and receivers.
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| Strategy for Future Research Activity |
In FY2019, we continue the study on Poynting vector of WP3 and plan to conclude this WP with a journal paper.
With high probability, this project will be finished before the end of the FY2019.
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Research Products
(8 results)
