SSI型电力机车动态谐波仿真

DYNAMIC HARMONIC SIMULATION OF THE SSI ELECTRIC LOCOMOTIVE

本文分析了SSI型电力机车谐波产生机理及其统计特征。文中首先在一般条件下用解析法和数值方法综合求解了SSI型电力机车的周期工作电流方程,给出了比较切合实际的计算模型。而后结合实际线路,根据SSI型电力机车的牵引计算结果,从仿真的角度对其谐波幅值和相频特征进行了统计分析,作出了其统计特征的直方图,为进一步进行电气化铁道全线动态谐波过程仿真提供了基础。

In this paper we present a detailed analysis on the gener-ating mechanism and statistical characteristics of the harmonics producedby the SSI electric locomotive.First, under general conditions, we solvethe locomotive's cyclic working current equation with the analyticaland the numerical methods combined, giving a computing module quitefitting in with practicl results.Then, combining this with the real railwayline and referring to the traction caculation results of the loco, wecarry out a statistical analysis on the harmonic amplitudes and phaseangles from the point of view of simulation, and meanwhile draw thehistograms for their statistical characteristics. The results in this paperprovide a basis for the whole-line simulation of the dynamic harmonicprocess on the electric railway line.