摘要
提出了井下风致振动压电能量收集技术为矿用无线低功耗传感器提供自供电方案。井下风致振动压电能量收集技术是利用压电材料的压电特性收集巷道内的风致振动能量,通过整流电路、滤波电路、调压电路、稳压电路和充电电路,将不规则的压电振动交流电捕获存储为可用的直流电,从而现实将巷道内风能转换为可用的直流电能。通过试验验证,矿用风致振动能量收集装置在风速为2.00~8.00 m/s内,储能设备输出电压为3.8~8.4 V,能够满足矿用无线低功耗传感器的供电需求。
The paper presents a scheme of collecting piezoelectric energy for underground wind-induced vibration to provide self power supply for wireless low power sensor in mine. The technology of underground wind-induced vibration piezoelectric energy collection is to collect the wind-induced vibration energy in the tunnel by using the piezoelectric characteristics of piezoelectric materials. Through rectifying circuit, filter circuit, voltage regulating circuit, voltage stabilizing circuit and charging circuit,irregular piezoelectric vibration AC capture and storage is used as available DC. Thus, wind energy in the tunnel is converted into available DC energy. The experimental results show that the energy collecting device of mine wind induced-vibration can meet the demand of wireless low power sensor in mine, with the output voltage of 3.8 V to 8.4 V within the wind speed of 2.00 m/s to8.00 m/s.
作者
周代勇
ZHOU Daiyong(China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400039,China;State Key Laboratory of Gas Disaster Monitoring and Emergency Technology,Chongqing 400037,China)
出处
《煤矿安全》
CAS
北大核心
2021年第9期153-156,共4页
Safety in Coal Mines
基金
天地科技股份有限公司科技创新创业资金专项资助项目(2020-TD-QN012,2020-TD-MS013)
中煤科工集团重庆研究院有限公司重点研发资助项目(201002120)。
关键词
压电材料
能量收集
无线设备
供电技术
振动能量
piezoelectric material
energy harvesting
wireless device
power supply technology
vibration energy
