Abstract—The current paper introduces the model for analysis and calculation of power electronics losses. The developed model was verified by measurements on the automotive claw-pole...
This publication provides the process for obtaining of a self-inductance of electrical machines with a dependence on frequency and amplitude of an applied alternating current and consideration of a non-linearity and saturation effects in the equivalent circuit lumped parameter model that would have the same frequency and time domain characteristic as some desired investigated electrical machine. The values of inductances were calculated from measured impedances for wide ranges of frequencies and currents according to the theory of a complex inductance and iron losses. The measured data were analyzed and summarized in a table and then used for modeling of a automotive alternator. The model was supplied with curve fitted data. The simulation of a common automotive test case was obtained and compared with measurements. Good match between the theory and measurements and reasonability of the suggested approach were confirmed.
Modeling and Simulation of Vehicle Power Network in Simulink MATLAB
The current publication introduces an approach for obtaining parameters of a six phase double delta salient-pole synchronous machine, based on the standstill frequency response test. The described approach was verified by measurements on a automotive claw-pole alternator, done in a laboratory on a test bench.
New test bench for vehicle power network with outstanding accuracy, resolution and data rate allows a high quality and at the same time low cost research on typical test cases and situations that appear in commercial vehicles.
Abstract—The current publication introduces the flux barrier design method and the concrete design of the synchronous reluctance machine with the reduced torque pulsations. The reviewed method provides the accelerated approach for designing of rotor flux barriers, based on Fast Fourier transforms and simple mathematical expressions. The proposed method has been utilized in the rotor design of synchronous reluctance machine and has shown desired results in reduced torque ripple. The innovative nonsymmetrical geometries for rotor flux barriers created on the basis of proposed flux barrier design method have been implemented and proved as beneficial. Keywords—Flux barriers; torque ripple reduction; FEM; synchronous reluctance machines.
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