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Design and optimization of a compact broadband piezoelectric energy harvester system with enhanced efficiency

Author

Listed:
  • Ma, Xinxin
  • Gong, Lijiao
  • Zeng, Zhaoquan
  • Wu, Yufei
  • Guo, Wangwang
  • Chen, Haichao
  • Feng, Ge

Abstract

This paper presents a high-performance piezoelectric energy harvesting system with a compact design for broadband vibration. The presented piezoelectric energy harvesting system converts vibration energy into electrical power for low-power electronics, offering an alternative to conventional power sources. First, we introduce a 43 mm × 20 mm × 30.1 mm compact broadband piezoelectric energy harvester (CBPEH) with two closely spaced bending vibration resonant frequencies at 48 Hz and 62 Hz, covering the critical 50 Hz, resulting in a broad operational bandwidth from 35 Hz to 90 Hz. To the best of our knowledge, considering the size of piezoelectric energy harvesters (PEHs), this is the highest achieved bandwidth among the published PEHs. Second, to improve energy conversion efficiency, we propose an extensible self-powered dual-capacitor switch-synchronous electric charge extraction (SDCS-SECE) interface circuit. This circuit effectively manages varying phase relationships in PEHs, preventing energy backflow and ensuring that the different PEHs operate without interference. Experimental results demonstrate optimal system performance within the 35–90 Hz range, achieving a normalized power density of up to 0.995 μW/(mm3⋅g). Moreover, the proposed CBPEH system successfully powers a wireless accelerometer, showing its potential as an independent power supply for wireless sensor networks.

Suggested Citation

  • Ma, Xinxin & Gong, Lijiao & Zeng, Zhaoquan & Wu, Yufei & Guo, Wangwang & Chen, Haichao & Feng, Ge, 2025. "Design and optimization of a compact broadband piezoelectric energy harvester system with enhanced efficiency," Renewable Energy, Elsevier, vol. 247(C).
    • Handle: RePEc:eee:renene:v:247:y:2025:i:c:s096014812500597x
    DOI: 10.1016/j.renene.2025.122935
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    References listed on IDEAS

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    1. Gu, Shanghao & Xu, Weihan & Xi, Kunling & Luo, Anxin & Fan, Kangqi & Wang, Fei, 2024. "High-performance piezoelectric energy harvesting system with anti-interference capability for smart grid monitoring," Renewable Energy, Elsevier, vol. 221(C).
    2. Ben hmamou, Dris & Elyaqouti, Mustapha & Achouch, Samia & Ydir, Brahim & Arjdal, El hanafi & Saadaoui, Driss & Ajdour, Amine & Lidaighbi, Souad & Choulli, Imade & Elhammoudy, Abdelfattah & Azami, Hafi, 2024. "Experimental characterization of photovoltaic systems using sensors based on MicroLab card: Design, implementation, and modeling," Renewable Energy, Elsevier, vol. 223(C).
    3. Miraglia, Marco & Romano, Donato & Camboni, Domenico & Inglese, Francesco & Oddo, Calogero Maria & Stefanini, Cesare, 2023. "Mechatronics-enabled harvesting of polarized wind kinetic energy through novel bio-mimetic swaying devices," Renewable Energy, Elsevier, vol. 211(C), pages 743-760.
    4. Xian, Tongrui & Xu, Yifei & Chen, Chen & Luo, Xiaohui & Zhao, Haixia & Zhang, Yongtao & Shi, Weijie, 2024. "Experimental and theory study on a stacked piezoelectric energy harvester for pressure pulsation in water hydraulic system," Renewable Energy, Elsevier, vol. 225(C).
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    1. Zhou, Jianwen & Xu, Jiandong & Hu, Junhui, 2025. "A compact and homologously excited hybrid energy harvester to scavenge fluid kinetic energy in pipelines for powering low-power sensor systems," Renewable Energy, Elsevier, vol. 255(C).

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