期刊
ENERGY REPORTS
卷 7, 期 -, 页码 852-874出版社
ELSEVIER
DOI: 10.1016/j.egyr.2021.01.087
关键词
Railway energy harvesting; Ambient energy sources; Vibration; Sound; Self-powered sensors
Energy harvesting in the railway industry has great potential for providing electrical power to a variety of instruments and equipment, especially in remote or harsh locations. Utilizing high-intensity sound and vibration levels in the railway environment as sources of energy can support the development of self-powered devices in the industry.
Energy harvesting in the railway industry has great potential for many applications. Energy harvesters can provide electrical power for track-side, on-board, and infrastructure instruments, including health monitoring sensors, signaling, switches, and safety equipment. Due to the rapidly growing trend of the railway network, a considerable number of instrumentations need to be located in inaccessible, remote, and harsh locations where providing the energy through cable is almost impossible. In these cases, self-powered sensors and distributed power generators can be used based on energy harvesting techniques. High-intensity sound and vibration levels in the railway environment prove them to be promising sources of energy for self-powered devices. This paper aims to provide a comprehensive review on the railway sound and vibration energy harvesting, from the beginning to the most stateof-the-art. This paper addresses different energy harvesting resources for the railway environment, diverse methods of energy harvesting and their advantages and drawbacks, and at the end, energy harvesting applications in the railway industry. Different models and prototypes of energy harvesters are introduced and compared. Finally, the potential applications of railway energy harvesting are addressed, and future challenges and trends are discussed. The scheme of the present paper is designed in a way to provide readers the most significant principles that need to be considered in the design of railway energy harvesters. (C) 2021 The Authors. Published by Elsevier Ltd.
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