Energy scavenging technique for powering wireless sensors

被引：0

作者：

Zhu, M. ^{[1
]}

Reid, A. ^{[1
]}

Finney, S. ^{[1
]}

Judd, M. ^{[1
]}

机构：

[1] Univ Strathclyde, Inst Energy & Environm, Glasgow G1 1XW, Lanark, Scotland

来源：

PROCEEDINGS OF 2008 INTERNATIONAL CONFERENCE ON CONDITION MONITORING AND DIAGNOSIS | 2007年

关键词：

condition monitoring; energy scavenging; wireless sensors;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A capacitive scavenging device is proposed to extract energy from the electric field that surrounds the equipment in a substation. Related research has shown that switching techniques can be used to increase the useful power obtained. An experiment has been set up by putting two parallel plates of 10 cm radius in a uniform AC electric field up to 20 kV/m. A mechanical reed relay was used at this stage to provide a high 'OFF' resistance. Tests were carried out by switching the relay at different frequencies and varying the length of the switching pulses. Initial results show that introducing switching could improve the scavenging efficiency compare with the basic linear circuitry. The proposed device could enable simple sensors to be energy self-sufficient, opening the way for wireless sensors to be installed widely in the power grid.

引用

页码：881 / 884

页数：4

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