Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 66, Issue 10, Pages 8266-8272Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2018.2868027
Keywords
Backpack energy harvesting; equivalent circuit; magnetic gear; magnetic lead screw; trans-rotary magnetic gear (TROMAG); wave energy harvesting
Categories
Funding
- Office of Naval Research [N00014-17-1-2180]
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This letter proposes an equivalent circuit for the trans-rotary magnetic gear. The circuit is presented for both impedance and admittance analogies. In both analogies, the gearing effect is modeled by a transformer. The gear's compliance is modeled by a parallel capacitor in the impedance analogy and by a series inductor in the admittance analogy. As an example, the proposed equivalent circuit is coupled to the equivalent circuit of a backpack energy-harvesting system to create an all-electric equivalent for the energy-harvesting system. The resulting all-electric equivalent circuit provides insight into system dynamics and control strategies. Moreover, the proposed circuit can be readily extended to other types of magnetic gears.
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