基于精密单点定位的变配电站地质微位移监测技术研究

Research on geological micro displacement monitoring technology of substation and distribution power station based on precise single point positioning

变配电站是电力系统的重要组成部分,配电站所经区域地质地形条件复杂,容易受到地质灾害的影响。针对避免地质灾害对变配电站造成破坏,提高输配电系统的安全性的问题,一种有效的手段是对变配电站所在区域进行微位移监测。考虑配电站有时部署在无人区,通信环境复杂,采用全球定位系统-精密单点定位方法对变电站进行11个月的连续观测,监测数据经过模型矫正、解算后,精度可达毫米级。此外,通过与同期该地区降水量分析,地质位移、沉降主要发生于降水丰富的时间段。这说明精密单点定位方法在变配电站地质灾害监测预警中应用前景良好,能够有效保证输配电系统的安全性。

Power transformation and distribution station is an important part of the power system.The geological and topographic conditions of the area through which the distribution station passes are complex and vulnerable to geological disasters.In order to avoid the damage caused by geological disasters to the power transformation and distribution station and improve the safety of the power transmission and distribution system,an effective means is to monitor the micro displacement of the area where the power transformation and distribution station is located.Considering that the distribution station is sometimes deployed in no man's land and the communication environment is complex,the global positioning system precision single point positioning method is used to continuously observe the substation for 11 months.After model correction and solution,the accuracy of the monitoring data can reach millimeter level.In addition,through the analysis of precipitation in this area in the same period,geological displacement and settlement mainly occur in the time period with abundant precipitation.This shows that the precise single point positioning method has a good application prospect in the monitoring and early warning of geological disasters in power transformation and distribution stations,and can effectively ensure the safety of power transmission and distribution system.