输电线路微气象超声式风速风向传感器设计  

Design of Microclimate Ultrasound Wind Speed and Wind Direction Transducer of Transmission Lines

作　　者：黄新波[1,2] 张亚维[1] 周柯宏[1] 张晓伟[1] 陈小雄[1] 

机构地区：[1]西安工程大学电子信息学院,陕西西安710048 [2]西安金源电气有限公司,陕西西安710075

出　　处：《广东电力》2013年第10期79-86,共8页Guangdong Electric Power

基　　金：国家重点基础研究发展计划(973计划)资助项目(2009CB724507-3);教育部"新世纪优秀人才支持计划"资助项目(NCET-11-1043)

摘　　要：为解决测风传感器的高低温工作特性、电磁兼容特性大都无法适应超(特)高压输电线路的环境特点,故障率高,低速段风速的测量精度不高等问题,基于时差法的超声式风速风向测量原理,设计输电线路微气象超声式风速风向传感器。控制电路采用STC11F32单片机芯片进行设计,传感器探头设计选用涂有特殊材料的压电陶瓷作为声匹配层,可以实现与空气的声阻抗相匹配。实验及运行结果表明,该超声式风速风向传感器结构简单,各风速段测量精度高,线性关系好,为输电线路的安全运行提供了气象监测的保障。For solving problems such as high and low temperature working characteristics and electromagnetism compatible properties of wind transducer can not adapt environmental features of ultrahigh and extra high voltage transmission lines, high failure rate and low measuring precision of low-speed segment wind speed, this paper introduces design of micro ultra- sound wind speed and wind direction transducer of transmission lines based on ultrasonic wind speed and wind direction meas- uring principles of time-difference method. The control circuit uses STCllF32 single chip while the transducer detector chooses piezoceramics with special materials as acoustic matching layer to realize auditory impedance matching with the air. Experimental and operational results indicate that this ultrasound wind speed and wind direction transducer is provided with advantages of simple structure, measuring precision of various wind speed segments and good linear relationship which may provide guarantees of weather monitoring for safe operation of transmission lines.

关 键 词：输电线路 微气象 在线监测 气象站 超声波 传感器 时差法 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]