Energy Adaptive Power Management System Using MPPT Techniques For Energy Scavenging In Mobile And Wireless Devices

Ang, Wei Pin (2015) Energy Adaptive Power Management System Using MPPT Techniques For Energy Scavenging In Mobile And Wireless Devices. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Energy Adaptive Power Management System Using MPPT Techniques For Energy Scavenging In Mobile And Wireless Devices001.pdf - Submitted Version Download (415kB)

Abstract

Energy harvesting has grown from long-established concepts into devices for powering ubiquitously deployed sensor networks and mobile electronics. Systems scavenge power from human activity or derive limited energy from ambient heat, light, radio, or vibrations. The radio frequency (RF) energy harvesting is developed by the wireless energy transmission technique for harvesting and recycling the ambient RF energy that is widely broadcasted by many wireless systems such as mobile communication systems, Wi-Fi base stations, wireless sensor networks and wireless devices. In this paper, a power management system has been designed and developed for performing maximum power point tracking (MPPT) techniques as the fluctuation of the input power across the target frequency range. The MPPT techniques implemented are the perturbation and observation (P&O) and fractional open circuit voltage (FOCV). The analog MPPT circuit controlled the charging and discharging stage by the duty cycle which depends on the variation of harvested power. The circuit is simulated and designed using standard 0.13μm Silterra process technology. The comparator of the MPPT circuit is optimized by parametric optimization and the layout of comparator is constructed in Synopsis software. Several layout design rules are applied in order to ensure accurate result for the circuit design. Moreover, a digitally control MPPT circuit which controlled by microcontroller unit (MCU) is constructed to control the different operation stages and generate maximum power point. The techniques that implemented in digital MPPT circuit is P&O algorithm which is the same algorithm as the proposed analog MPPT circuit.

Actions (login required)

View Item