Power-saving circuits of railway traction power supply based on superconducting inductive energy storage

Primary technical power losses in the system of railway traction power supply are described that may be reduced by means of superconducting inductive energy storage (SIES). Main SIES construction elements and its operation principle are described. Based on data from experiments and imitation modeling, values on the order of the SIES energy capacity, as well as its mass and overall dimension parameters, are determined. A particular section of the Moscow railway is considered where SIES application may already be profitable. Components are shown in which the technical and economical efficiency of the SIES application may be estimated. © 2008 Allerton Press, Inc.