From the time domain results, one may conclude that using a lumped parameter measured model is an effective method of predicting the time domain LISN voltages from which a conducted RFI spectrum may be obtained. With respect to frequency domain results, the correlation between simulated and experimental results show a few differences. The simulated results follow the general trend of the experimental results. The discrepancies may be attributable in part, to the methods used to model various motor parameters, and differences between the simulated and experimental methods used to obtain the frequency spectrum. For example, the phase back EMFs were modeled as the sum of sinusoidal harmonic voltages. In reality, the phase back EMFs are a function of the flux in the air gap. It may be more prudent to use a finite element program to determine the flux in air gap under the load conditions of concern so as to incorporate the effects of armature reaction on the shape of the phase back EMFs. Finite element tools could also be used to predict the values in the self and mutual inductance matrix, as well as iron losses. In comparing the simulated and experimental results, it can be concluded that this method of predicting conducted RFI emissions over the frequency range of interest can serve as a simulation tool that can shorten the development cycle. In this study, simulation has only been conducted on two motor windings with two different fan loads.
BLDC motor and drive low frequency conducted RFI simulation for automotive applications
2003
8 Seiten, 15 Bilder, 2 Tabellen, 12 Quellen
Conference paper
English
BLDC motor and drive low frequency conducted RFI simulation for automotive applications
Automotive engineering | 2003
|BLDC Motor and Drive Low Frequency Conducted RFI Simulation for Automotive Applications
British Library Conference Proceedings | 2003
|BLDC Motor and Drive Low Frequency Conducted RFI Simulation for Automotive Applications
SAE Technical Papers | 2003
|Prediction of conducted RFI emissions in BLDC motors for automotive applications
Tema Archive | 2001
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