A review on vibration energy harvesting technologies: analysis and technologies

Energy harvesting is the method of extraction of electrical energy from ambient sources. The sources such as heat, light and vibration possess a great amount of energy to extract. The increasing use of wearable devices requires a micro generator which should be able to generate low power usually in the range of micro and milli watts. Vibration energy harvesting is one of the energy harvesting technique that is used in micro generators. The source of vibration can be converted into electrical energy by piezoelectric, electrostatic, and electromagnetic methods. This research work encompasses the recent developments in the field of vibration energy harvesting from modelling, analysis and techniques involved in converting the available vibration energy into electrical energy.