Innovative approaches to optimize vibration energy harvesting (VEH): A comprehensive review
Mohammad Farhan, Asan G. A. Muthalif, Mohamed Sultan Mohamed Ali
Abstract
This review article explores the advancement of energy harvesting technologies with a comparative study of various energy harvesting methods suitable for powering small-sized and low-power electronic devices. Over the years, significant developments and innovations in energy harvesting technologies have been aimed at providing sustainable power solutions for various applications. These technologies leverage ambient energy sources such as solar, wind, and vibrational energy to generate electrical power. Among these in nature, vibration energy can be found in various forms, including ocean waves, wind-induced vibrations, and the movement of living organisms. Similarly, in existing structures, vibration energy is generated by machinery, vehicles, buildings, and infrastructures. Developing various materials and transduction mechanisms for vibratory energy harvesting has enabled the efficient conversion of vibration energy into electrical energy. The mechanism includes piezoelectric , electromagnetic , and electrostatic generators. Power generation from vibration energy sources utilizing piezoelectric vibration energy harvesting (PVEH) got lots of considerations because of their high electromechanical coupling and high normalized power density compared to other energy harvesters . Numerous research has been introduced to enhance the diverse aspects of piezoelectric energy harvesting, such as novel metamaterials , various transduction mechanisms (nonlinear and broadband), and advanced electrical circuits. This paper aims to provide an updated review of significant improvements achieved in the field of PVEH by summarizing previous research done over the past decades.