Analytical Modeling and Validation of a Preloaded Piezoceramic Current Output

Zhang, Bin; Liu, Huan; Li, Dezhi; Liang, Jinhui; Gao, Jun

doi:10.3390/mi12040353

Cited by 6 publications

(3 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4. It includes an alternating current (AC) source i p , an internal capacitance C p of the PZT, and a resistance R p [60] , which is usually very large and can be neglected in some cases. It should be noted that since the output current of the PEH is very small, typically at the µA level [61] , and the open-circuit output voltage is relatively high, the outputs also vary with the external excitation conditions, e.g., amplitude and frequency.…”

Section: Electromechanical Coupling Model For Pehsmentioning

confidence: 99%

A review of nonlinear piezoelectric energy harvesting interface circuits in discrete components

Zhang

Liu

Zhou

et al. 2022

Appl. Math. Mech.-Engl. Ed.

Self Cite

View full text Add to dashboard Cite

Piezoelectric energy harvesting is considered as an ideal power resource for low-power consumption gadgets in vibrational environments. The energy extraction efficiency depends highly on the interface circuit, and should be highly improved to meet the power requirements. The nonlinear interface circuits in discrete components have been extensively explored and developed with the advantages of easy implementation, stable operation, high efficiency, and low cost. This paper reviews the state-of-the-art progress of nonlinear piezoelectric energy harvesting interface circuits in discrete components. First, the working principles and the advantages/disadvantages of four classical interface circuits are described. Then, the improved circuits based on the four typical circuits and other types of circuits are introduced in detail, and the advantages/disadvantages, output power, efficiency, energy consumption, and practicability of these circuits are analyzed. Finally, the future development trends of nonlinear piezoelectric energy harvesting circuits, e.g., self-powered extraction, low-power consumption, and broadband characteristic, are predicted.

show abstract

Section: Electromechanical Coupling Model For Pehsmentioning

confidence: 99%

A review of nonlinear piezoelectric energy harvesting interface circuits in discrete components

Zhang

Liu

Zhou

et al. 2022

Appl. Math. Mech.-Engl. Ed.

Self Cite

View full text Add to dashboard Cite

show abstract

“…By ignoring the backward coupling effect in the electrical analysis, the electromechanical coupling model can be simplified into the electrical model shown in figure 4 [35]. It includes an equivalent alternating current source i p , an internal capacitor C p of the piezoelectric transducer, and a large resistor R p [9,36].…”

Section: Electromechanical Coupling Model Of the Piezoelectric Transd...mentioning

confidence: 99%

Analysis and optimization of self-powered parallel synchronized switch harvesting on inductor circuit for piezoelectric energy harvesting

Zhang

Liu²,

Hu³

et al. 2022

Smart Mater. Struct.

Self Cite

View full text Add to dashboard Cite

Due to its strong environmental robustness and high energy density, piezoelectric energy harvesting is considered one of the most promising methods to power wireless sensor nodes under extreme conditions. The interface circuit is essential to a piezoelectric energy harvester to reduce internal energy dissipation, achieve impedance matching, and improve energy conversion efficiency. Existing researches show that a parallel synchronized switch harvesting on inductor (P-SSHI) interface circuit compared with a standard energy harvesting (SEH) circuit can significantly improve the output power. Therefore, this paper proposes a self-powered optimized parallel synchronized switch harvesting on inductor (SP-OPSSHI) circuit, which adopts a new peak detection (PKD) switching circuit to replace the switches in the P-SSHI circuit. It can realize switch control without an external starting power supply, i.e., cold start. Compared with an existing self-powered PSSHI (SP-PSSHI) circuit, it can effectively eliminate the “second inversion” phenomenon caused by the parasitic capacitors of transistors after the voltage inversion process. The cause and effect of “second inversion” on energy harvesting are analyzed in this study. Then, the working principle and process of the optimized circuit are discussed, and energy harvesting under the ideal state is conducted. Finally, the SP-OPSSHI circuit is developed and tested. The experimental waveforms show that the SP-OPSSHI circuit compared with the SP-PSSHI circuit can significantly reduce the impact of parasitic capacitors in the energy harvesting process. The output performance of the SP-OPSSH circuit is tested with the variation of resistance. The experimental results indicate that the SP-OPSSHI circuit has an optimal load resistance of 350 kΩ, achieving a maximum harvested power being 2.91 times that of the SEH circuit.

show abstract

“…Stoffregen also used a charge based approach for ex-situ evaluation of the pre-stress of an integrated piezoelectric stack [17]. An integral based approach, similar to the one presented in this paper, was used by Zhang et al [27]. However, focus relied on power optimization for piezoelectric energy harvesting.…”

Section: Pre-stress Measurementmentioning

confidence: 99%

Integration of piezoelectric stacks in components using powder bed fusion

Weber¹,

Seydel²,

Spierings³

et al. 2021

Smart Mater. Struct.

View full text Add to dashboard Cite

Laser-based powder bed fusion of metals (PBF-LB/M) is the most commonly used additive manufacturing process for fabricating complex metal parts by selective, layer-wise melting of metallic powder using a laser beam. This manufacturing technique can easily fabricate parts with complex geometries that cannot be fabricated using conventional manufacturing processes. These parts with complex geometries are generally used by aerospace and space industries, and advancement in functionalization of additive manufactured parts is highly beneficial to these industries. However, the parts constructed using additive manufacturing are monolithic, stiff, and lightweight and hence, they are vulnerable to high amplitude resonant vibrations. This is due to the low damping factor of the materials used and the absence of interfaces and connections that contribute to structural damping in conventional structures. The integration of piezoelectric materials within these structures would enable the control of vibration characteristics. The techniques presented in this study will enable a high level of freedom in the placement of piezoelectric materials and investigate the potential of merging parts constructed using additive manufacturing with piezoelectric materials. Furthermore, a technique to track the stress state during the integration process, which is crucial for the pre-stress evaluation of integrated piezoelectric stacks, is presented and shows characteristics similar to a force cell. Pre-stress is successfully tracked during integration and in some concepts tensile stress onto the piezoelectric material is occurring. Finally, to verify the functionality for potential piezoelectric damping, power conversion was reported with laser vibrometer measurements and FE validation.

show abstract

Analytical Modeling and Validation of a Preloaded Piezoceramic Current Output

Cited by 6 publications

References 29 publications

A review of nonlinear piezoelectric energy harvesting interface circuits in discrete components

A review of nonlinear piezoelectric energy harvesting interface circuits in discrete components

Analysis and optimization of self-powered parallel synchronized switch harvesting on inductor circuit for piezoelectric energy harvesting

Integration of piezoelectric stacks in components using powder bed fusion

Contact Info

Product

Resources

About