基于温差/风振复合式发电的传感器自供电系统设计  

Design of sensor self-powered system based on temperature difference/wind induced vibration hybrid type power generation

作　　者：吴志东[1,2] 冯宇琛 汪光亚 WU Zhidong;FENG Yuchen;WANG Guangya(School of Mechanical and Electronic Engineering,Qiqihar University,Qiqihar 161006,China;College of Electrical and Information,Northeast Agricultural University,Harbin 150030,China)

机构地区：[1]齐齐哈尔大学机电工程学院,黑龙江齐齐哈尔161006 [2]东北农业大学电气与信息学院,黑龙江哈尔滨150030

出　　处：《传感器与微系统》2022年第9期84-87,91,共5页Transducer and Microsystem Technologies

基　　金：黑龙江省教育厅省属高等学校基本科研业务费科研项目(135509411);黑龙江省教育科学规划重点项目(GJB1320388)。

摘　　要：设计一种基于温差能和风致压电振动能量的复合俘能结构的自供电系统,以解决低功耗传感器电路供电问题。通过俘能结构输出功率分析和测试,在温差为11℃时输出功率24.32 mW,满足传感器模块供电需求。根据复合俘能结构输出特性,分别设计基于LTC3588—1和LTC3108电源管理电路,通过LTspice软件仿真验证电源管理电路正确性。通风口处风速为4.50 m/s时,温差发电片两侧温差为22℃,系统可稳定输出3.3 V,输出总功率为62.61 mW,传感器模块正常工作。测试结果表明:温差/压电复合式发电结构可为低功耗传感器稳定供电。To solve the power supply problem of low power sensor circuit, a kind of sensor self-power system is designed, which is based on a hybrid energy harvesting structure with temperature difference energy and wind-induced piezoelectric vibration energy.By analyzing and testing the output power of the hybrid energy harvesting structure, when the temperature difference is 11 ℃,the output power is 24.32 mW,which can meet the power supply demand of sensor module.According to the output characteristics of energy harvesting structure, LTC3588—1 and LTC3108 power management circuits are designed, and the correctness of power management circuit is verified by LTspice software simulation.When the wind speed at the vent is 4.50 m/s, the temperature difference between the two sides of the thermoelectric generator is 22 ℃,the system can output 3.3 V stably, and the total output power is 62.61 mW,the sensor module can work normally.The results show that the thermoelectric and piezoelectric hybrid power generation structure can provide stable power supply for low power sensor.

关 键 词：温差能 风致压电振动能量 自供电系统 复合式发电 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TM913[自动化与计算机技术—控制科学与工程] TM614[电气工程—电力电子与电力传动]