Journal
IEEE TRANSACTIONS ON POWER ELECTRONICS
Volume 37, Issue 4, Pages 3753-3762Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2021.3124828
Keywords
Inductors; Vibrations; Energy harvesting; Capacitors; Transistors; Topology; Synchronization; Energy harvesting (EH); multi-input interface; multiple piezoelectric transducers (multi-PZTs); synchronized switching harvesting on inductor (SSHI); voltage doubler rectifier (VDR)
Categories
Funding
- National Natural Science Foundation of China [61801253, 62131010, 61971389]
- theNatural Science Foundation of Zhejiang Province [LY21F010006, LZ20F010006, LY20F010003]
- K.C. Wong Magna Fund in Ningbo University
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This study presents a self-powered dual-inductor MI-PSSHI voltage doubler rectifier (VDR) interface circuit for processing multi-PZT voltages with arbitrary phases input. The measurements demonstrate that the prototyped circuit can extract a high peak power from multiple PZTs, achieving a good balance between peak output power and load voltage range. Additionally, the proposed circuit is easy to implement and shows good scalability, making it an alternative solution for multi-PZTs energy harvesting.
Vibration energy harvesting using multiple piezoelectric transducers (multi-PZTs) can increase its output power and environmental adaptability. At present, there are still few research articles on multi-input interface circuits for multi-PZTs, especially those using the parallel synchronized switching harvesting on inductor (PSSHI) technique. Therefore, this article presents a self-powered dual-inductor MI-PSSHI voltage doubler rectifier (VDR) interface circuit. It can process multi-PZT voltages with arbitrary phases input. The measurements demonstrate that the prototyped MI-PSSHI-VDR circuit can extract a peak power of 1.93x00A0;mW from four PZTs under an excitation of 1.5x00A0;g and 77.5x00A0;Hz. The energy integration efficiency and energy extraction efficiency of the prototyped circuit are 93.2x0025; and 75.1x0025;. Compared with a multi-input full-bridge rectifier, the proposed circuit can achieve 3.22x00D7; power improvement and 3.58x00D7; voltage improvement, which grasps a good balance between the indices of peak output power and load voltage range. Additionally, the MI-PSSHI-VDR circuit is easy to implement and shows a good scalability, which can be an alternative solution for multi-PZTs energy harvesting.
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