抽水蓄能电站运行期平面控制网复测及稳定性分析  

Re-measurement and stability analysis of horizontal control network of a pumped storage power station during operation

作　　者：陈超 尚金光[2] CHEN Chao;SHANG Jinguang(PowerChina Beijing Engineering Cor?poration Limited;不详)

机构地区：[1]中国电建集团北京勘测设计研究院有限公司,北京100024 [2]成都市勘察测绘研究院,四川成都610081

出　　处：《大坝与安全》2020年第1期17-21,共5页Dam & Safety

摘　　要：由于库水日调节的特殊工况,决定了抽水蓄能电站水库在运行期会产生较大的水位变幅,分析研究环库周平面控制网在库水位较大变幅状况下的稳定性具有一定的意义。以某抽水蓄能电站上水库平面控制网为例,采用变形误差椭圆法、t检验法进行点位稳定性判定,针对两种纯数学模型判定结果不一致、判定过程无法考虑点位现实状况的弊端,提出结合数学模型和点位实际状况的综合分析法进行点位稳定性判定,获得了更加切合实际情况的判定结论,这对类似工作具有一定指导意义和实际应用价值。Because of the special working condition of daily regulating reservoirs of pumped storage pow?er station,the water level has a huge variation range during operation.It is of practical significance to an?alyze and study the stability of the horizontal control network around reservoir under the condition of huge water level fluctuation.This paper takes the horizontal control network of the upper reservoir of a pumped storage power station as an example,uses the deformation error ellipse method and T-test to de?termine the stability of points.In view of the disadvantages of inconsistent judging results from two pure mathematical models and the fact that judging process can not consider the actual situation of points,this paper puts forward a comprehensive analysis method.By combining mathematical model with actual situation to determine the stability of points,a more practical conclusion is obtained,which has guiding significance and greater practical application value for similar work.

关 键 词：抽水蓄能电站 控制网稳定性分析 变形误差椭圆法 t检验法 综合分析法 

分 类 号：TV698.1[水利工程—水利水电工程]