A review of rotary piezoelectric energy harvesters

Due to the great potential of rotary piezoelectric energy harvesters in environmental monitoring and energy harvesting, a great deal of research has been conducted by scholars. This paper presents a comprehensive review of the recent research progress of rotary piezoelectric energy harvesters in terms of literature background, excitation principles, practical applications and interface circuits. According to the different excitation methods, we divide the rotary piezoelectric energy harvester into centrifugal, impact, tensile (compression), magnetic and compound types, and describe and evaluate the different research results. Meanwhile the current potential applications of rotating piezoelectric energy harvesters can be divided into three categories: wearable devices, vehicle wheels and other applications, and the corresponding research progress is reviewed. Through the review and analysis of different excitation modes, application scenarios and the back-end energy interface circuits, the reference is improved for the design and research of the rotary piezoelectric energy harvester with high output performance. In addition, this paper also proposes future research directions and challenges.

Automated summary

This paper presents a comprehensive review of the recent research progress of rotary piezoelectric energy harvesters in terms of literature background, excitation principles, practical applications and interface circuits. It divides the rotary piezoelectric energy harvester into different types based on excitation methods and evaluates their research results. The potential applications of rotating piezoelectric energy harvesters and their corresponding research progress are also reviewed. The paper provides valuable reference for the design and research of rotary piezoelectric energy harvesters with high output performance, and proposes future research directions and challenges.