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With the rapidly developing of electrified railways; the power quality problems caused by traction power supply system have been increasing taken into account by railway and electricity department. In order to evaluate power quality, the models based on PSCAD/EMTDC of typical traction power supply system and traction loads have been established. The voltage unbalance, harmonics and flicker under worst case of traction loads have been detailed analysis by the model based on PSCAD/EMTDC. The result of simulation analysis is credible and valuable in practical project.

Power Quality Analysis and Evaluation of High-Speed Railway Traction Power Supply System