A novel wind energy harvesting system with hybrid mechanism for self-powered applications in subway tunnels

Zheng, Pengwu; Qi, Lingfei; Sun, Mengdie; Luo, Dabing; Zhang, Zutao

doi:10.1016/j.energy.2021.120446

Cited by 56 publications

(15 citation statements)

References 23 publications

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“…[480] Rail vibration and wind energy caused by running trains can be used as power sources for trackside electronic devices. [481,482] Due to the uneven surface roughness of the track, the running train can cause the vertical vibration of the track, with amplitudes rang-ing from 1 to 12 mm and frequencies ranging from 1 Hz to 4 Hz. [483] The vibration energy harvester based on the electromagnetic generator can effectively harvest the vibration energy of the rail track to power the trackside electronics.…”

Section: Self-powered Microelectronics In Intelligent Transportationmentioning

confidence: 99%

Recent Progress in Application‐Oriented Self‐Powered Microelectronics

Qi,

Kong,

Wang

et al. 2023

Advanced Energy Materials

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With the rapid development of the Internet of Things (IoTs), numerous distributed wide‐area low‐power electronic devices have been utilized in various fields, such as wireless monitoring sensors and wearable electronics. Due to the dispersion and mobility of microelectronic devices, their energy supply faces serious challenges. The inconvenience and non‐environmental friendliness of using traditional centralized low entropy energy and chemical batteries to power distributed microelectronic devices are becoming increasingly prominent. Environmental energy harvesting technology with high entropy characteristics is considered an effective solution for low‐power electronic devices. This paper comprehensively reviews the recent progress in microelectronic technologies based on energy harvesting and signal sensing. First, state‐of‐the‐art micro‐power electronic devices in humans, animals, and the environment are introduced. Secondly, the available micro‐energy sources in the environmentare elaborated and summarized. Then, the principles and characteristics of ambient microenergy harvesting technologies based on different mechanisms are classified, summarized, and analyzed. In addition, this work comprehensively summarizes the applications of self‐powered micro‐electronics technology in 11 different fields, including human, animal, and environment. Finally, research challenges, technical difficulties, and research gaps in self‐powered microelectronics based on micro‐energy harvesting technology are discussed and summarized.

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Section: Self-powered Microelectronics In Intelligent Transportationmentioning

confidence: 99%

Recent Progress in Application‐Oriented Self‐Powered Microelectronics

Qi,

Kong,

Wang

et al. 2023

Advanced Energy Materials

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“…The coil size should be kept small for energy harvesters intended for use in the human body. [40,83] One solution is to decrease the number of turns and coil area, which reduces the final output power. Alternatively, microfabrication methods can be used to produce smaller coils, which have become increasingly popular in recent research.…”

Section: Electromagneticmentioning

confidence: 99%

Harvesting Inertial Energy and Powering Wearable Devices: A Review

Zhang,

Shen,

Zheng

et al. 2023

Small Methods

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Amidst the swift progression of microelectronics and Internet of Things technology, wearable devices are gradually gaining ground in the domains of human health monitoring. Recently, human bioenergy harvesting has emerged as a plausible alternative to batteries. This paper delves into harvesting human inertial energy that stimulates inertial masses through human motion and then transmutes the motion of the inertial masses into electrical energy. The inertial energy harvester is better suited for low‐frequency and irregular human motion. This review first identifies the sources of human motion excitation that are compatible with inertial energy harvesters and then provides a summary of the operating principles and the comparisons of the commonly used energy conversion mechanisms, including electromagnetic, piezoelectric, and triboelectric transducers. The review thoroughly summarizes the latest advancements in human inertial energy‐harvesting technology that are categorized and grouped based on their excitation sources and mechanical modulation methods. In addition, the review outlines the applications of inertial energy harvesters in powering wearable devices, medical health monitoring, and as mobile power sources. Finally, the challenges faced by inertial energy‐harvesting technologies are discussed, and the review provides a perspective on the potential developments in the field.

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“…The prototype's performance was validated using a self-powered sensor system. Zheng et al [30] presented a selfpowered tunnel wireless sensor system. The system consists of an electromagnetic wind energy harvesting module, a piezoelectric wind energy harvesting module, and a power generation and energy storage module.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric breeze energy harvester with mechanical intelligence mechanism for smart agricultural monitoring systems

Zheng,

Han,

Yang

et al. 2024

Smart Mater. Struct.

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In this paper, a piezoelectric breeze energy harvester with a mechanical intelligence mechanism for smart agricultural monitoring systems (G-PBEH) is proposed. Different from the conventional magnetically coupled piezoelectric cantilever beam harvesters where the end magnet is mostly fixed, the G-PBEH has movable magnets in a fixed cylindrical channel. Which could achieve a mechanical intelligence mechanism with the tuned magnets on the shell, contributing to increasing voltage frequency and widening wind bandwidth. The effects of cylindrical channel length (L) and tuned magnet diameter (D) on performance were investigated. The experimental findings reveal that when L is 10 mm and D is 8 mm, the prototype starts at 2 m/s, and the highest voltage and power are 17.9 V and 944.07 μW (150 kΩ) at 8 m/s. Compared to L is 5 mm (magnet fixed), the voltage waveform has a 28.6% increase in the quantity of peaks. Besides, the voltage is larger than 3 V occupying 91.6% of the experimental wind bandwidth. The application experiment demonstrates that the G-PBEH can be used as a reliable power supplier, which can facilitate the progress of smart monitoring systems for simplified greenhouses in remote areas.

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A novel wind energy harvesting system with hybrid mechanism for self-powered applications in subway tunnels

Cited by 56 publications

References 23 publications

Recent Progress in Application‐Oriented Self‐Powered Microelectronics

Recent Progress in Application‐Oriented Self‐Powered Microelectronics

Harvesting Inertial Energy and Powering Wearable Devices: A Review

Piezoelectric breeze energy harvester with mechanical intelligence mechanism for smart agricultural monitoring systems

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