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Analysis and Calculation of Electromagnetic Torque for the Voltage Source Traction Motors
Applied Mechanics and Materials, 2013The traction motor installed on the high-speed train is powered by inverter. A large number of harmonics may appear when motor is operating. Then the motor speed generate oscillation and finally the dynamic characteristic is affected in vehicle system.
Xiao Yu Wu, Ze Hao Huang, Zhe Ming Chen
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Algorithm for calculating torque base in vehicle traction control system
Chinese Journal of Mechanical Engineering, 2012Existing research on the traction control system(TCS) mainly focuses on control methods, such as the PID control, fuzzy logic control, etc, aiming at achieving an ideal slip rate of the drive wheel over long control periods. The initial output of the TCS (referred to as the torque base in this paper), which has a great impact on the driving performance
Yongguang Xia +6 more
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Calculation method for harmonic impedance of traction substation grounding grid
2016 IEEE International Conference on Power System Technology (POWERCON), 2016Due to the high harmonic content in the traction return current, it is inappropriate to calculate the rail potential and other parameters by grounding impendence of traction substation under power frequency, and it is necessary to take harmonic grounding impendence into consideration. The effect of the harmonic grounding return current on the grounding
Qiu Qipei +5 more
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Normalized Unified Operating Point Calculation of AC Drives for Traction System
2015 IEEE Vehicle Power and Propulsion Conference (VPPC), 2015This paper presents an analytic method for calculating the operating point of any AC drive, either synchronous or asynchronous. The method selects the operating condition for any reference torque under current and voltage limitation. Implementation is based on a normalized expression of torque, speed-voltage limits and current limits, yielding to a ...
CASADEI, DOMENICO +2 more
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Electric traction and electrolytic corrosion: a software tool for stray currents calculation
2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495), 2004The stray currents represent a serious problem for each electric system for transportation where the rails are the return conductor of traction circuit. Especially for dc traction systems, the stray currents create or accelerate the electrolytic corrosion of metallic structures located in the proximity.
Ardizzon, P. Pinato, ZANINELLI, DARIO
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Leakage Inductance Calculations in Different Geometries of Traction Transformers
ECTI Transactions on Electrical Engineering, Electronics, and Communications, 2014Calculating leakage inductances between windings of traction transformer is one of the most important schemes in design procedure. In this paper, analytic, semi-analytic and finite element methods are introduced for electromagnetic modeling of different geometries of the traction transformer.
Davood Azizian, Mehdi Bigdeli
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Software for Efficient Static Dislocation-Traction Calculations in Fault Simulators
Seismological Research Letters, 2014Online Material: Software packages with documentation. Quasistatic or quasidynamic rate–state friction (QRSF) simulators are used to study the mechanics of faults (e.g., Shibazaki and Shimamoto, 2007). The displacement discontinuity method (DDM; Crouch and Starfield, 1983) meshes the fault or faults into N elements and constructs a matrix of Green’s ...
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Electric traction calculations
Journal of the Institution of Electrical Engineers, 1957T.E. Calverley, D.G. Taylor
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A Means of Calculating Level Road Traction Requirements
SAE Technical Paper Series, 1962M. D. Odegaard, J. R. McLean
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