Solar micro-power system for self-powered wireless sensor nodes

摘要：

In self-powered wireless sensor nodes, the efficiency for environmental energy harvesting, storage and management determines the lifetime and environmental adaptability of the sensor nodes. However, the method of improving output efficiency for traditional photovoltaic power generation is not suitable for a solar micro-power system due to the special requirements for its application. This paper presents a solar micro-power system designed for a solar self-powered wireless sensor node. The Maximum Power Point Tracking (MPPT) of solar cells and energy storage are realized by the hybrid energy storage structure and “window control. Meanwhile, the mathematical model of energy harvesting, storing and management is formulated. In the novel system, the output conversion efficiency of solar cells is 12％.

关键词： Solar Cell “window control Sensor node Energy management

作者: He Yong-tai Li Yan-qiu Liu Li-hui Wang Lei

作者单位: Department of Optic-Electronic Engineering, School of Information Science and Technology,Beijing Ins Department of Optic-Electronic Engineering, School of Information Science and Technology,Beijing Ins Department of Optic-Electronic Engineering, School of Information Science and Technology, Beijing In

会议类型: 国际会议

会议名称: 第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology

会议地点: 沈阳

会议语种:英文

页码: 1-8

在线出版日期: 2008-09-15（万方平台首次上网日期，不代表论文的发表时间）