The Transactions of the Korean Institute of Power Electronics (전력전자학회논문지)

The Korean Institute of Power Electronics (전력전자학회)
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AC/DC Resonant Piezo-Powered Boost Converter for Piezoelectric Energy Harvesting

압전에너지 수확을 위한 AC/DC 공진형 자려 부스트 컨버터

  • Published : 2009.12.05
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Abstract

This paper proposes a new AC/DC RPPB(Resonant Piezo-Powered Boost) converter for energy harvesting using a piezoelectric device which converts mechanical vibration energy to electrical energy. The AC/DC RPPB converter can operate with only the harvested energy without an additional power conversion circuit for switching circuit and transfer energy to a load of which the voltage is higher than piezoelectric voltage. With the review of published topologies of the converter for energy harvesting, the operation principle of the AC/DC RPPB converter, and the results of PSPICE simulation and experiment are presented to prove the feasibility of the new converter for the energy harvesting.

본 논문은 기계적 에너지를 전기에너지로 변환하는 압전소자를 이용한 에너지 수확 시스템 내에서 전력변환을 수행하는 새로운 AC/DC 공진형 자려(自勵) 부스트 컨버터를 제안한다. AC/DC 공진형 자려 부스트 컨버터의 자려 스위칭을 위한 게이트 회로는, MOSFET 특성을 이용하여 압전소자 출력전압의 최대값을 검출하고 LC 공진회로의 특성을 이용하여 영전압 스위칭을 하며, 승압형 전력변환을 수행하기 위해서 별도의 전원을 필요로 하지 않는다. 제안된 컨버터 회로의 동작원리를 설명하고, 기존 연구 개발된 토폴로지와 비교, PSPICE 시뮬레이션 및 실험을 통하여 유용성을 검증한다.

Keywords

References

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