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Ma R.,Sichuan Power Grid Guangyuan Power Supply Company | Ren Q.,Sichuan Power Grid Guangyuan Power Supply Company | Zhang S.,Sichuan Power Grid Guangyuan Power Supply Company | Xu A.,Sichuan Power Grid Guangyuan Power Supply Company
Gaoya Dianqi/High Voltage Apparatus | Year: 2014

With the rapid development of the construction of high speed railway, more and more AC drived electrical locomotives supplied by single phase power with high power drawing and non-liner characteristics occur in power supply system, accompanying with this situation, new impacts imposed on power quality are presented. Nowadays, the studies of impacts on power quality in this area are more focused on the main circuits of electrical locomotive, however, paid less attention on methods of power quality monitoring and evaluating for this new kind of AC drived electrical locomotive. The paper analyzes characteristics and power quality disturbances of electrical locomotive; on the basis of typical power quality disturbances originated by electrical locomotive, analyzes the issues which should be concerned in power quality monitoring; in addition, discusses and provides the power quality evaluation methods related to traction substation. The conclusion shows that for electrical locomotive load, the continuous power quality disturbances, and the discontinuous disturbances should be both considered. ©, 2014, Xi'an High Voltage Apparatus Research Institute. All right reserved. Source

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