Open AccessResearch on Train Secondary Pulsation Elimination Method
Author(s) -
Chengtao Wang,
Yuxi Zhang,
Ruichang Qiu
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/512/1/012165
Subject(s) - train , traction (geology) , three phase , voltage , power (physics) , ac power , electrical engineering , active power filter , computer science , electronic engineering , automotive engineering , engineering , physics , mechanical engineering , cartography , quantum mechanics , geography
In the train traction system, the single-phase four-quadrant converter achieves the same frequency and phase of the voltage and current on the grid side, but it cannot avoid generating secondary pulse power of the same magnitude as the DC side load. The traditional method is to connect the LC secondary resonance circuit in parallel on the DC side, but the volume and weight of the resonance circuit are relatively large, which reduces the power density, which does not meet the development trend of lightweight trains and the requirements of energy saving. The active filtering method of the secondary pulsation can not only effectively eliminate the secondary pulsation, but also cancel the bulky LC filter, reduce the axle load, increase the passenger capacity, and realize green energy saving.