Linear electromagnetic electric generator for harvesting vibration energy at frequencies more than 50 Hz

Abstract

This study proposes a linear electromagnetic generator that can harvest vibration energy from a transformer and supply electricity to a monitoring system. The sensor system delivers voltage and electricity information from a transformer and it usually requires a battery that must be replaced periodically. These result in high costs, working hours, and manpower, and workers may sometimes face very dangerous situations, especially when a transformer is located in a mountainous area or an elevated position that cannot be accessed easily. The transformer vibrates at a frequency of approximately 50 Hz or higher. In this study, a linear electromagnetic generator was designed to analyze and harvest this vibration energy. A prototype was produced and its performance was tested, which showed that more than 100 mW of electricity could be produced, which is the minimum amount required for the electricity analysis system.

Review of Power Converter Impact of Electromagnetic Energy Harvesting Circuits and Devices for Autonomous Sensor Applications

“…In [40], the authors described a magneto-electric harvester based on a stable magnet and a piezoelec-tric harvester utilizing a metal ball. The structure of the electromagnetic power generator and EH based on vibration is shown in Figure 4a,b [41,42]. This feature includes a coil sandwiched between magnets, where two sets, oppositely separated, comprise the higher and lower magnets.…”

“…In Figure 5, the graph is representing the power on the y-axis and the dimension of the electromagnetic vibrational generator on the x-axis. Power density with maximum available power dimension for the electromagnetic vibration generator structure [42]. Figure 5.…”

“…Figure 5. Power density with maximum available power dimension for the electromagnetic vibration generator structure[42]. Figure5.…”

Multi-Directional Universal Energy Harvesting Ball

“…Motion from the human body [ 5 ], animals [ 6 ], or mechanical equipment [ 7 ] can be used to charge batteries [ 8 , 9 ] or power objects, such as wearable devices [ 10 , 11 ], tactile sensors [ 12 , 13 ], and biomedical devices [ 14 , 15 ]. This motion can be generated by rotational [ 16 , 17 , 18 , 19 ], linear [ 20 , 21 ], vibrational [ 22 , 23 , 24 ], or forced fluid induction [ 25 , 26 , 27 , 28 ] systems.…”

Double Beam Energy Harvester Based on PZT Piezoelectrics

“…Within these examples, capturing kinetic energy from mechanical vibrations present in machines, household devices, air or water flow, moving structures (cars and planes) and others like biological systems, buildings, bridges and floors, is the field with the highest number of publications and real-world applications. Some conversion mechanisms including electrostatic, electromagnetic and piezoelectric have been investigated for the production of an electricity from mechanical vibrations [18]. Vibration transducers with piezoelectric technology have been studied most intensively [19] and are considered as an advanced technology, with continuously ongoing research.…”