Study on harmonic resonance of traction line in electrified high-speed traction system
作者： Lei Guo , Qunzhan Li , Yinglei Xu
DOI: 10.1109/SUPERGEN.2009.5348389
关键词:
摘要: Modern pulse width-modulated (PWM) converter-fed locomotives generate current harmonics which propagate along traction line. The line is distributed at high frequencies, so the injected may cause resonances. This paper presents a way for analyzing resonance in electrified high-speed system, by calculating harmonic According to voltage generation process and characteristics of line, formulas representing spectra PWM converter input impedance system are presented. Frequency spectrum simulated analyzed while locomotive runs Results indicate that properties both vary, former has greater variation; series-resonances occur some frequency position depends on line; contents small, mains 3–9th series resonances ones.
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