Coherent Power Controlling in Energy Scavenging Embedded System

Abstract

Embedded systems are proficient at processing, monitoring and controlling. Energy autonomy is basic need of portable embedded system, that accomplished by batteries. The requirements of mobility put acute limitation on size and weight, which in turn restrict energy availability and reduce system lifespan. Energy scavenging is reassuring technique to overcome the limit on battery life and coherent energy utilization increase energy availability. In this paper the proposed portable embedded system build up with a photovoltaic panel and Wind Turbine for energy scavenging, rechargeable battery will be supplied from PV array and Wind Turbine and embedded load device. Designed system provides multisource and self powered power supply to load device which could remain charged. In this for effective power handling proposed several algorithms for Task scheduling, voltage & frequency assignment according to workload and scan energy level of storage element to reduce the task instance drop rate.