针对电力线路弧垂测量的组合定位系统设计及应用  

Design and Application of Combination Positioning System for Power Line Measurement

作　　者：王记住 王文义 梁会永 田冬 焦中圈 WANG Jizhu;WANG Wenyi;LINAG Huiyong;TIAN Dong;JIAO Zhongquan(Hebei Electric Power Transmission and Transformation Co.,Ltd.,Shijiazhuang 050051,China)

机构地区：[1]河北省送变电有限公司,河北石家庄050051

出　　处：《河北电力技术》2023年第4期73-78,共6页Hebei Electric Power

基　　金：国网河北省电力有限公司科技项目(sbd2022-01)。

摘　　要：在紧线施工中,施工单位一般采用经纬仪对导线弧垂进行测量,但这种光学测量方法常受制于测量的时段、天气、地形等因素。采用卫星定位可规避上述因素的影响,从而实现全天候、全天气、全地形的弧垂测量,但目前常用的卫星定位方式容易出现短暂的卫星信号丢失或者卫星信号不良的情况。针对上述问题,采用连续性较强的惯性原件进行补偿和校正,设计了一种将卫星数据和惯性数据融合的组合定位系统,以提高卫星定位的适用性。系统根据测量载体的不同信号条件,设置了三种运动模式,结合卫星信号和惯性器件的不同特性,在不同条件下选取最优信号,从而提升定位精度。应用该方法进行了多次弧垂测量,结果证明该方法的定位精度能够满足紧线施工需求,同时可以满足卫星定位信号丢失条件下粗略定位的要求。In power line tightening process,the construction unit generally uses theodolite to measure the power line sag,but this optical measurement method is often subject to the time,weather,terrain and other factors.Satellite positioning can avoid the disadvantages of the above factors,to achieve all-time,all-weather,all-terrain sag measurement.However,at current,the commonly used satellite positioning method are prone to short-term satellite signal loss or poor satellite signal.In view of this defect of satellite positioning,we can use inertial components which is strong continuous to compensate and correct the satellite positioning data.Therefore,in this paper,we designed a fusion algorithm of satellite positioning data and inertial positioning data to improve the applicability of satellite positioning.The algorithm sets three dynamic modes according to different states of measuring carrier's signal,combines different characteristics of satellite signals and inertial devices,and selects the optimal signal in different states to improve positioning accuracy.In this paper,the method is applied to many sag measurements,and the results show that the positioning accuracy of the method can meet the requirements of line tightening process,and can meet the requirements of rough positioning under the condition of satellite positioning signal loss.

关 键 词：弧垂 MEMS 惯性元件 定位 

分 类 号：TM752[电气工程—电力系统及自动化]