基于实测数据的电铁牵引负载谐波源模型

A Harmonic Source Model of Electrified Railway Traction Load Based on Measured Data

在大量实测电铁录波数据的基础上,运用总体测辨的建模思想,首先建立了在不同牵引工况下以机车与网侧系统交换的三相基波正序有功功率、无功功率为激励,谐波电流的实部和虚部为响应的谐波源模型,而后确定了每类模型的推荐参数。通过模型响应与实测数据的对比,说明得到的牵引负载谐波源模型是准确的。

According to lots of measured recorded data of electrified railway and by use of the modeling idea based on overall measurement-identification, harmonic source models under different traction operation conditions are built, in which three-phase fundamental positive-sequence active and reactive power exchanged between locomotive and traction power supply system are regarded as the energizing and the real and imaginary parts as the responses, and then recommended parameters for each kind of harmonic source model are determined. Results of comparing measured data with the response data of the built models show that the attained harmonic source models for traction load are correct.