面向电力铁塔倾角检测的电磁式微风能量采集器研究  

Research on Electromagnetic Wind Energy Harvester for Power Tower Inclination Detection

作　　者：徐长宝 辛明勇 古庭赟 薛世涵 王熙 鲁彩江 XU Changbao;XIN Mingyong;GU Tingyun;XUE Shihan;WANG Xi;LU Caijiang(Electric Power Research Institute of Guizhou Power Grid Co.,Ltd.,Guiyang 550002,Guizhou,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,Sichuan,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,贵州贵阳550002 [2]西南交通大学机械工程学院,四川成都610031

出　　处：《电力大数据》2024年第3期9-15,共7页Power Systems and Big Data

基　　金：国家自然科学基金项目(52175519);贵州电网有限责任公司科技项目(GZKJXM20220045)。

摘　　要：电力铁塔倾斜检测是保障高压输电线路安全和稳定运行的重要手段,目前状态检测设备存在功耗高、依赖化学电池供电等问题。该研究设计了一种集成自供能铁塔倾角无线传感系统,通过电磁能量采集器收集高空铁塔风能,由低功耗能源管理电路进行能源存储与负载供电。该系统的性能经电磁仿真和实验验证,采集器可在2 m/s的风速下启动,在8 m/s的风速下,装置空载情况的电压为1.25 V,输出功率为8.2 mW。得到了用BQ25570芯片搭建低功耗能源管理电路,通过升压后输出3.3 V电压对倾角传感器进行供能测试。根据实验结果,此装置可以为铁塔倾角传感器或其他小型电气设备供电,这将为自供能物联网无线传感网络节点提供技术支持。Inclination detection of power towers is an important means to ensure the safe and stable operation of high-voltage transmission line systems.Currently,state monitoring devices have issues such as high power consumption and reliance on chemical batteries for power.This study designs an integrated self-powered tower inclination wireless sensing system,which collects wind energy from high-altitude towers through an electromagnetic energy harvester.The collected energy is stored and supplied to the load by a low-power energy management circuit.The performance of this system was verified by electromagnetic simulation and experiments.The harvester can start at a wind speed of 2 m/s,and at a wind speed of 8 m/s,the voltage of the device in a no-load situation is 1.25 V,with an output power of 8.2 mW.A low-power energy management circuit was built using the BQ25570 chip,and after boosting,it outputted 3.3 V to power the inclination sensor.According to the experimental results,this device can power tower inclination sensors or other small electrical equipment,providing technical support for self-powered IoT wireless sensor network nodes.

关 键 词：电磁能量采集 铁塔倾角 状态检测 能源管理 自供电 

分 类 号：TM726[电气工程—电力系统及自动化]