基于贝瑞隆模型的ATP仿真误差分析

用ATP仿真程序验证基于贝瑞隆模型的纵差保护方案过程中遇到了几个问题,主要包括:模型分段问题;空间模量和零模量传播时间不一致情况下如何获得精确采样数据;故障初始点产生的误差。研究表明,问题一对仿真影响不大,问题三可采用延时的方法解决。对于问题二,提出了用不同起始时刻的两次仿真获得精确采样数据的方法。仿真结果表明这些措施是可行的,类似的方法也可以用于其它的保护方案仿真分析中。

Error analysis of ATP simulation based on Bergeron model

This paper uses ATP simulation program to confirm the current differential protection based on Bergeron model.The result of simulation is different from the theoretical result.This paper analyzes the source of these errors i.e.the error of the model,the error of sampling,and the error of the first fault data.Then it gives some suggestions to reduce them.The first error has no affection to the results and can delay the first fault data to solve the third error.But the second error is difficult.This paper gives two sampling data that can reduce this error.Simulation results show that the analysis is correct and this method can be used for other simulation analysis.