15 April 2016 Vibration energy harvesting with polyphase AC transducers
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Three-phase transduction affords certain advantages in the efficient electromechanical conversion of energy, especially at higher power scales. This paper considers the use of a three-phase electric machine for harvesting energy from vibrations. We consider the use of vector control techniques, which are common in the area of industrial electronics, for optimizing the feedback loops in a stochastically-excited energy harvesting system. To do this, we decompose the problem into two separate feedback loops for direct and quadrature current components, and illustrate how each might be separately optimized to maximize power output. In a simple analytical example, we illustrate how these techniques might be used to gain insight into the tradeoffs in the design of the electronic hardware and the choice of bus voltage.
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James J. McCullagh, James J. McCullagh, Jeffrey T. Scruggs, Jeffrey T. Scruggs, Takehiko Asai, Takehiko Asai, "Vibration energy harvesting with polyphase AC transducers", Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 979926 (15 April 2016); doi: 10.1117/12.2225458; https://doi.org/10.1117/12.2225458

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