PolyU Library
Journal Call no.TA4.C3578
AuthorChen, Nanming.
Article TitleHarmonic analysis in dc electrified transit railway systems consisting of uncontrolled bridge rectifiers with commutation impedances / Nanming Chen, Ruay-Nan Wu and Yii-Shen Tzeng.
Is Part OfJournal of the Chinese Institute of Engineers ; v.18, no.6, Nov 1995, p.813-824, illus.
AbstractThe paper presents a new formulation of harmonic current injection of the 6-pulse uncontrolled bridge rectifier with commutation impedance. In cooperation with a train simulator developed earlier, the proposed harmonic source model is applied in a harmonic analysis program to comprehensively simulate the harmonic penetration in the Blue Line of Taipei Rapid Transit Systems (TRTS). Both frequency scans and harmonic distortion calculations were performed for various system component models. Simulation results indicated that both the voltage and current harmonic distortions in the Blue Line of TRTS were improved by use of 24-pulse rectifiers. The application of further harmonic suppression schemes in traction networks to alleviate the harmonic distortions can be achieved using the simulated results.