配网架空线路强迫振动线性模型构建方法研究

Construction of forced vibration linear model of overhead lines in distribution network based on breeze vibration mechanism

为提高配网架空线路强迫振动线性模型构建的有效性和可靠性,提出一种配网架空线路强迫振动线性模型构建方法,对微风振动机理下的配网架空线路进行分析,通过等效自阻尼系数建立架空线路强迫振动线性模型。试验测试结果表明:所提方法可有效检测出实际架空线路振动幅度,所得动弯应变值与实际值之间的误差较小,架空线路振动轨迹与实际值接近。表明所提方法增强了架空线路构建线性模型的有效性,提高了可靠性。

In order to improve the validity and reliability of the linear model construction of forced vibration of distribution overhead lines,a method for constructing the linear model of forced vibration of distribution overhead lines is proposed,and the linear model of forced vibration of distribution overhead lines is established through the equivalent self-damping coefficient.The test results show that the proposed method can effectively detect the actual vibration amplitude of overhead lines,and the error between the obtained dynamic bending strain value and the actual value is small,and the vibration trajectory of overhead lines is close to the actual value.It shows that the proposed method enhances the effectiveness and reliability of linear model construction of overhead lines.