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With the speed of electrified railway improving, the getting worse arch arc, has become one of constraining bottleneck in the development of China high-speed railway. This paper has discussed the hazards of arc to the contact wire, pantograph skateboards, communication signals, radio signals and power quality. From the aspects of arc model, arc energy, arc erosion and carrier friction, summarizes...
Lightning is the main reason that endangers the safety and reliability of transmission line, but the existing models of estimating shielding failure flashover rate can not be in agreement with field experience at present. This paper deals with shielding failure flashover rate of the EHV transmission lines with many parameters by the improved electric-geometry model. The parameters consist of phase...
Harmonic pollution in modern power system is a major problem. In order to analyze the influence of harmonic caused by electric locomotive on power system, taking Ynd11 transformer connection of a traction station as a example, this paper presents a dynamic model of electric locomotive and traction power supply system, and conducts simulation analysis of the injection of 110 kV side of the imbalance...
The pulse capacitor, as the important energy storage device, its stability will directly influence the dependability of the pulse power system that capacitor located in. Life-span of the capacitor has strong relationship with its working dependability, In this paper, by charging and discharging to the pulse capacitor and testing direct current partial discharge to the capacitors at different stage...
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