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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...
In order to reduce the impact of harmonic and negative sequence on the power system, in traction substation can use Scott wiring traction transformer. By using MATLAB to establish a Scott wiring transformer model, the 110 kV side of the three-phase harmonic voltage and current with its harmonic content and negative sequence can be simulated. Comparing simulated results and actual data of one transformer...
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