基于GPS的输电线路故障精确定位装置的研究

Study on Accurate Positioning Device for Failure of Transmission Lines Based on GPS

基于GPS的两端同步采样的故障精确定位算法 ,采用的模型是单π模型 ,微分方程算法。它克服了故障电压、电流中含有直流、谐波分量较大或系统频率偏离工频较远时产生的较大误差 ,实现了故障精确定位。文章简要地介绍了AFL2 0 0 1故障测距装置硬件和软件的实现、特点和广泛的应用前景。

Based on the failure-positioning algorithm of synchronized sampling at both ends of GPS the model to be used is the single π model and differential equation algorithm is used.The method has overcome relatively great error produced when the failure voltage and current contain relatively large DC and harmonic component or the system frequency is deviated far from the work frequency.In this way the method has realized the accurate position of the failures.The paper has briefly introduced the AFL2001 failure distance measurement device,realization and properties of software and widely applicable prospect of the technique.