轨道交通受电弓/柔性接触网系统受流特性的研究

Research on Rail Transit Current Receiving Characteristics of Pantograph/Flexible Catenary System

为了不断改善受电弓/柔性接触网系统的受流质量,主要采用半实物半虚拟相结合的方法,建立受电弓/柔性接触网模拟试验台,研究轨道交通柔性接触网参数对弓网接触压力的影响规律,进而研究列车弓网受流特性。研究表明:当柔性接触网的结构高度取1.5 m,柔性接触网跨距取62 m,承力索及接触线的张力取15 kN,承力索线密度取0.8 kg/m,接触线线密度取1.5 kg/m,接触线弛度取45 mm,对单个余弦波不平顺,其波长应大于3.2 m,对正弦波不平顺,其波长应大于5.5 m时受电弓/柔性接触网系统受流最佳。

In order to improve the current receiving quality of pantograph/flexible catenary system,the pantograph/flexible catenary operation simulation test rig was established to study the influence of rail transit catenary parameters on the contact force of pantograph/flexible catenary by physical and virtual combination method,and then the current receiving characteristics of the pantograph/flexible catenary was studied.Researches showed that when flexible catenary structure height was 1.5 m,span was 62 m,the tension of carrier cable and contact wire was 15 k N,carrier cable line density was 0.8 kg/m,contact lines density was 1.5 kg/m,and contact wire sag was 45 mm,for single cosine wave was not smooth,the wavelength should be greater than 3.2 m,and the sine wave was not smooth,wavelength should be greater than 5.5 m,the current receiving was the best for pantograph/flexible catenary system.