A piezoelectric impact-induced vibration cantilever energy harvester from speed bump with a low-power power management circuit

Chen, Nan; Jung, Hyun Jun; Jabbar, Hamid; Wei, Tingcun

doi:10.1016/j.sna.2016.12.006

Cited by 86 publications

(64 citation statements)

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“…The average output power of the buck-boost in Case 2 is 271 µW with 82% of converter efficiency but it decreases to 54% in Case 1 due to self-start. In the microwatt scale of the PEH system, converter efficiency in the proposed circuit is relatively higher than the converter in the previous literature [29,30]. It is noted that this section shows the circuit efficiency in the active mode for a given PEH input power, but the efficiency is increased by the increased average PEH power because power consumption of the controller is maintained regardless of the PEH output power [30], and the output power is relatively higher than power consumption of the controller.…”

Section: Circuit Efficiencymentioning

confidence: 74%

“…However, this topology is only beneficial to energy harvesters that generate low voltage such as electromagnet and thermoelectric energy harvester. Our previous studies designed start-up circuits that are suitable to PEH with the intermittent and random input conditions [29][30][31] in which the controllers autonomously switch between sleep and active modes considering random and intermittent energy. In [29], the impedance matching circuit with sleep mode reduced the power loss using a controller powered by a storage device (e.g., battery) when there is no harvested energy.…”

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confidence: 99%

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Power Supply Switch Circuit for Intermittent Energy Harvesting

2019

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Energy harvesters generate power only when ambient energy is available, and power loss is significant when the harvester does not produce energy and its power management circuit is still turned on. This paper proposes a new high-efficiency power management circuit for intermittent vibration energy harvesting. The proposed circuit is unique in terms of autonomous power supply switch between harvester and storage device (battery), as well as self-start and control of the operation mode (between active and sleep modes). The self-start controller saves power during an inactive period and the impedance matching concept enables maximum power transfer to the storage device. The proposed circuit is prototyped and tested with an intermittent vibration energy harvester. Test results found that the daily energy consumption of the proposed circuit is smaller than that of the resistive matching circuit: 0.75 J less in sleep mode and 0.04 J less in active mode with self-start.To transfer the output power efficiently from PEH to a wireless sensor node (WSN), power management circuits have been actively researched [16][17][18][19][20][21]. Synchronized Switch Harvesting on Inductor (SSHI) is one of the popular options for PEH. SSHI can reduce the internal capacitance of PEH's effects so that PEH can continuously supply the power to the load. In [22], SSHI showed 85% of AC-DC conversion efficiency. However, SSHI can increase the efficiency of AC-DC conversion only when both electromechanical coupling factor k 2 and mechanical quality factor Q m are low [23]. Considering intermittent and random ambient vibration, maximum power point tracking (MPPT) was actively researched. When the vibration frequency of PEH is changed, the impedance of PEH is also changed. MPPT can adaptively match the impedance with the PEH's to maintain the maximum power transfer condition. Among the previous studies, Shim et al. [24] showed the highest MPPT efficiency (99%).Still, the research on the power management circuit considering intermittent and random input energy is in infancy. Gyorgy et al. [25] proposed a self-start circuit, but it has some drawbacks such as 340 s of cold-starting time for activating a power management circuit, and no sleep mode control. In [26][27][28], junction gate field-effect transistor (JFET) based start-up circuits were proposed for low voltage start-up, which can boost the several mV to the start-up voltage level (>1.5 V) for starting operation of power management circuit. However, this topology is only beneficial to energy harvesters that generate low voltage such as electromagnet and thermoelectric energy harvester. Our previous studies designed start-up circuits that are suitable to PEH with the intermittent and random input conditions [29][30][31] in which the controllers autonomously switch between sleep and active modes considering random and intermittent energy. In [29], the impedance matching circuit with sleep mode reduced the power loss using a controller powered by a storage device (e.g., battery) when there is n...

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Section: Circuit Efficiencymentioning

confidence: 74%

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confidence: 99%

Power Supply Switch Circuit for Intermittent Energy Harvesting

2019

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“…It can not only make the fuzzy control algorithm well adapt to the change of the external environment, but also can eliminate the residual error existing in the fuzzy logic control algorithm and thus realize the optimized control of battery charging with constant current and constant voltage. Fuzzy-PI dual-mode control algorithm is a parallel dual-mode control algorithm and its control principle is that when the input error is great, the fuzzy control algorithm with fast adjustment speed is used to control and get better performance in dynamic adjustment [7]. When the input error is small, the PI integral control is adopted, and through eliminating the residual error of the control system as a whole, better steady-state performance can be obtained.…”

Section: Design Of Charge Control Algorithm For Lead Acid Batterymentioning

confidence: 99%

Design of Solar Power Management Circuit Based on Wireless Sensor Network

Jianying

2017

Int. J. Onl. Eng.

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Abstract-To explore the design of solar power management circuit, the fuzzy logic control algorithm based on MPPT, which has fast control speed and good environment robustness, is adopted as the control algorithm. In addition, the MPPT solar battery charge and discharge power management circuit is designed and successfully applied in the on-line measurement projects of dielectric loss of wireless sensor network in Jilin Province LG Electronics Company. The results show that the charging efficiency of solar battery charge and discharge power management circuit can reach above 80%, and the current of static power management circuit is less than 1mA. In different light intensities, the dynamic power management is intelligently carried out. At last, it is concluded that the stability and reliability of circuit are quite high.Keywords-Wireless sensor, power management, circuit design IntroductionIn the research on solar power supply, the control algorithms of MPPT in the past are divided into the following three categories: indirect control method based on parameter selection, direct control method based on sampled data, and intelligent control method based on modern control theory. Among them, the algorithm based on parameter selection is comparatively simple, but it cannot adapt to the influence of environment change on the parameters of solar panel. The control method based on sampled data is dynamic, which makes the maximum power point tracking according to environmental conditions, but the tracking is too slow. The MPPT algorithm based on the modern control theory makes up for the shortcomings of the above two algorithms, and it can achieve better maximum power point tracking. Compared with the previous two algorithms, this algorithm is more complex. Fuzzy logic control algorithm has the characteristics of fast control speed, good environment robustness and simple algorithm realization. As a result, it is chosen as the control algorithm for further study.

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“…20 With regard to the researches initiated by Mouapi A et al, a piezoelectric cantilever beam was placed under the front passenger seat to generate electrical energy, but available vibration displacement was rather limited. 23, 24 Zheng Q et al also attempted to recover vibration energy with the use of piezoelectric cantilever, but since the object was limited to microelectromechanical system, major attention was not paid to the approaches to improve the harvesting efficiency. 22 An energy harvesting system using piezoelectric cantilever was designed, in which the speed bump could be triggered twice in the process of shock compression.…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, the size of energy harvested could be affected by the length of vibration time. 23,24 Zheng Q et al also attempted to recover vibration energy with the use of piezoelectric cantilever, but since the object was limited to microelectromechanical system, major attention was not paid to the approaches to improve the harvesting efficiency. 25 Xie and Wang took into full account the effect of road excitation on the acquisition of piezoelectric cantilever beam energy based on a simulation, although the effect of vehicle speed was not mainly elaborated.…”

Section: Introductionmentioning

confidence: 99%

Maximization of piezoelectric vibration energy harvesting of vehicle based on double‐gear drive

Yang

Xie

Quan

et al. 2019

Energy Science & Engineering

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A cantilever‐based piezoelectric energy harvesting generator driven by an automatically ‐switchable double‐gear is designed, to assemble the linear‐to‐rotary motion translation and achieve a continuous recovery efficiently by piecewise harvesting. On the basis of identifying the road tolerance grade, an investigation is conducted into the relationship between the gear pitch, vehicle speeds and the energy. A value‐taking method and switching principle are proposed for the gear pitch of the double‐gear under comprehensive driving conditions. According to the tests of two road sections, the results of the simulations show that the automatically ‐switchable double gear can maximize the piezoelectric vibration energy harvesting efficiency under comprehensive driving conditions and road surface with varying tolerances. Meanwhile, results concerning the device experiments indicate that the harvesting efficiency could be improved by 131.66% (76.70%) and 9.37% (22.38%) compared with the single gear with its pitch of 3 mm and 10 mm, respectively.

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A piezoelectric impact-induced vibration cantilever energy harvester from speed bump with a low-power power management circuit

Cited by 86 publications

References 20 publications

Power Supply Switch Circuit for Intermittent Energy Harvesting

Power Supply Switch Circuit for Intermittent Energy Harvesting

Design of Solar Power Management Circuit Based on Wireless Sensor Network

Maximization of piezoelectric vibration energy harvesting of vehicle based on double‐gear drive

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