Comparison of Varies Method for Energy Harvesting System from Piezoelectric Material

Now a day, increasing demand for lowpower and portable-energy sources due to the development and mass consumption of portable electronic devices. Energy harvesting (also known as power harvesting or energy scavenging) is derived from external sources (e.g., solar power, thermal energy, wind energy, biomechanical energy and vibration environment), captured, and stored. Piezoelectric material has the ability to be used as mechanism to transform mechanical and biomechanical energy, like ambient vibration and human motion, to electrical energy. In this paper compare varies method for energy harvesting system from piezoelectric material. 1) energy harvesting system based on the enhanced synchronized switching technique. 2) self-tunable piezoelectric vibration energy harvesting system 3) cantilever-based energy harvesting devices (EHD) 4) use of piezoelectric polymers in order to harvest energy from people walking and the fabrication of a shoe capable of generating and accumulating the energy.