Title :
A maximum power point tracking and voltage regulated dual-chip system for single-cell photovoltaic energy harvesting
Author :
Wen-Yaw Chung ; Pei-Shan Yu ; Silverio, A.
Author_Institution :
Inst. of Electron. Eng., Chun-Yuan Christian Univ., Chungli, Taiwan
Abstract :
This paper proposed a maximum power point tracking (MPPT) and voltage regulated (VR) dual-chip system for photovoltaic (PV) energy harvesting. Self-powered and low-cost miniaturized system is important in a quality agriculture system that is extensive use of wireless sensor network (WSN). This proposed power management controls a two-stage boost converter that can boost the output voltage to 3.3V to power an application system by only one NiMH battery and one single-cell PV. A single-cell PV avoids huge power loss with partial shading effect. According to the simulation results, the MPPT efficiency is up to 96.5% and the conversion efficiency is up to 97.2%.
Keywords :
energy harvesting; maximum power point trackers; photovoltaic power systems; voltage regulators; wireless sensor networks; maximum power point tracking; partial shading effect; power management; quality agriculture system; single-cell photovoltaic energy harvesting; two-stage boost converter; voltage 3.3 V; voltage regulated dual-chip system; wireless sensor network; Agriculture; Algorithm design and analysis; Batteries; Computer architecture; Maximum power point trackers; Microprocessors; Pulse width modulation; Energy harvesting; dualchip system; maximum power point tracking; quality agriculture; single-cell photovoltaic; wireless sensor network;
Conference_Titel :
Integrated Circuits (ISIC), 2014 14th International Symposium on
Conference_Location :
Singapore
DOI :
10.1109/ISICIR.2014.7029460
