Open Access
Current Ripple Simulation in DC Traction Voltage System of an Electric Bus: 2
Filip Gard,Linda Nilsson +1 more
TLDR
This master thesis proposes methods of measurement, simulation model adjustments, and usage of the finished model based on curve fitted parameters, and compares the simulated properties to current and voltage levels measured in real vehicles.Abstract:
Current ripple can cause a lot of problems as it spreads in the DC-side of the TVS of electric and electric hybrid vehicles. Fully knowing the properties of the TVS can be used to build a simulation model to determine the spreading of current ripple beforehand, which in turn is useful for calculating component placement, optimal filter sizes, and component lifetime. Being the second in line of an ongoing chain of thesis projects at Volvo buses, this master thesis proposes methods of measurement, simulation model adjustments, and usage of the finished model. Using an LCR meter, the impedance of several components was measured and modeled in LTSpice based on curve fitted parameters. Comparing the simulated properties to current and voltage levels measured in real vehicles, the accuracy of the models of different buses is presented and validated. (Less)read more
Citations
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Dissertation
Measurement and Simulation of Cable Impedance Parameters in 600 V System
TL;DR: In this paper, the authors presented measurement and simulation technique of cable impedance parameters in 600 V system using finite element method (FEM) software using the concept of transverse electric magnetic (TEM) waves.
References
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Book
Field and wave electromagnetics
TL;DR: In this article, the authors consider boundary value problems in Cylindrical Coordinates and present a solution to the problem of boundary addition and subtraction in Cartesian Coordinates.
Journal ArticleDOI
Effects of eddy currents in transformer windings
TL;DR: In this article, the effect of eddy currents on transformer windings is considered and a method is derived for calculating the variation of winding resistance and leakage inductance with frequency for transformers with single-layer, multilayer and sectionalised windings.
Book
Electrical Engineering: Principles and Applications
TL;DR: In this paper, the authors present an overview of electrical circuits and their properties, including inductance, capacitance, and capacitance in series and parallel, as well as an analysis of a simple NMOS Amplifier.
Proceedings ArticleDOI
A novel approach for minimizing high frequency transformer copper losses
J. P. Vandelac,Phoivos D. Ziogas +1 more
TL;DR: Using electromagnetic theory and mmf diagrams in both space and time, a method that provides insight into the mechanism of skin and proximity effect losses and also yields quantitative results is proposed in this article.
Dissertation
Automotive Electromagnetic Compatibility - Prediction and Analysis of Parasitic Components in Conductor Layouts
TL;DR: In this article, the authors focus on estimation of the parasitic components in a system with two conductors and a ground structure, and five different conductor layouts are investigated by using analytical calculations, electromagnetic simulations with the software CableMod and measurements.
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