【摘要】 搭建了局放信号在电力电缆中传播的MATLAB/Simulink模型,应用振荡波局放检测法对预置故障电缆进行了局放测量试验和相应的仿真计算,同时使用不同的电缆参数进行了局放信号在电缆中传播过程的仿真。结果表明,局放脉冲信号幅值的衰减和波形的畸变程度受电缆长度和电缆一次分布参数的显著影响。局放传播特性的仿真研究,对振荡波局放检测系统局放检测程序的优化有一定参考价值,同时给振荡波局放检测法应用过程中局放反射波的确定提供了一个辅助鉴定的方法。更多还原

【Abstract】 In this paper,a MATLAB/Simulink model is set up to simulate the PD signal in the power cable.The test and simulation calculation of the preset fault cable is carried out by using the method of the oscillating wave test(OWTS),and using different cable parameters to simulate the transmission process of the signal in the cable.The results show that,the attenuation of amplitude of PD pulse signal and the distortion of the waveform are significantly influenced by the cable length and the distribution parameters of the cable.The simulation study on the characteristics of the PD is of certain reference value to the optimization of the detection procedure of the PD detection system.And also provides an auxiliary method to determine the identification of reflected wave in PD detection.更多还原