An improved method for spectral analysis of traction current an Alternating Current (AC) electric locomotive is considered in the article. A new considers change voltage catenary system as a non-deterministic, non-ergodic and non-Gaussian process. It has been established that higher harmonics have significant negative effect on operation non-traction railway consumers electricity. In addition, ...

A feedforward current-sense current-compensation (CSCC) active EMI filter (AEF) for the direct current-side common-mode (CM) electromagnetic interference (EMI) suppression of high-power electric vehicle traction inverters is analyzed and designed. detailed design components with formulas provided based on an analysis CSCC AEF, including AEF topology its implementation. The stage was implemented...

this paper concerns the design and analysis, of a ball type continuously variable transmission, (b-cvt). this b-cvt has a simple kinematic structure, and same as a toroidal cvt, transmits power by friction on the contact points between input and output discs, that are connected to each other by balls. after, a brief introduction of our b-cvt structure, the performance and traction efficiency of...

The safety and reliability of electric traction vehicles are seriously endangered by external lightning strokes and internal switching surges which result from the operation of circuit breakers or the moving contact between the pantograph and the overhead catenary wire. Overvoltages in electric traction vehicles are much higher than the rated voltages of railway system, causing server damage to...