CAJ | 학술논문

针对±800 kV 特高压直流输电工程存在风致响应过大的问题，采用空气动力学理论中的弹性相似理论，建立以满足输电塔线原型结构和高度风洞试验段截面尺寸要求为目标的气弹模型，并测试和分析该模型的动力特性；同时，在考虑风场模拟的湍流强度、湍流风功率谱和平均风速分布等因素的基础上，建立模拟风洞实验。以某区域电网直流输电工程为例，通过理论分析和实际检测对比，验证了该塔线体系模型的动力特性可以满足气动弹性试验的要求。
침대±800 kV 특고압직류수전공정존재풍치향응과대적문제，채용공기동역학이론중적탄성상사이론，건립이만족수전탑선원형결구화고도풍동시험단절면척촌요구위목표적기탄모형，병측시화분석해모형적동력특성；동시，재고필풍장모의적단류강도、단류풍공솔보화평균풍속분포등인소적기출상，건립모의풍동실험。이모구역전망직류수전공정위례，통과이론분석화실제검측대비，험증료해탑선체계모형적동력특성가이만족기동탄성시험적요구。
Aiming at large wind-induced response of ±800 kV UHVDC power transmission engineering,this paper introduces establishment of a kind of aeroelastic model with the goal of satisfying requirements of power transmission tower line struc-ture and sectional dimension of high wind tunnel testing section by using elasticity similarity theory in aerodynamics theory. Dynamic characteristics of this model was tested and analyzed as well.On the basis of considering turbulent intensity,turbu-lent wind power spectrum and average wind speed distribution of wind field simulation,a simulating wind tunnel experiment was established.Taking one direct current power transmission engineering in some region as an example and by means of theoretical analysis and practical detection comparison,dynamic characteristics of this tower line system model was proved to be satisfied for requirement of aeroelasticity experiment.