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Terminal electromagnetic interference (EMI) models of power converters have been shown to successfully predict conducted emissions up to at least 30 MHz. These models can accurately predict the input side EMI of converters for changes in the source impedance but only for a fixed load. In other words these models cannot predict the input side EMI for changes in the load side parameters. Such terminated...
This paper presents a modified small-signal model of a voltage source inverter (VSI) that captures model nonlinearities such as dead time and modulation effects that were not presented in the literature. Previous research has concentrated on developing compensation methods for these types of phenomena in a switching model, but none actually derived an analytical model that can predict them. In this...
This paper addresses the two-port network behavioral modeling of the power converters for renewable energy sources that feature non-linear static behavior. Based on the Hammerstein's approach, two models, non-linear dc and linear ac are both run simultaneously in the simulation while the dynamic model is constantly being updated with the operating point values from the static model, in order to include...
A generalized terminal model has been proposed to predict the conducted electromagnetic interference (EMI) from a boost converter. The results of conducted emissions have shown a good agreement up to 50 MHz. The same technique was also successfully applied to extract a terminal model of buck converter. This paper extends the generalized terminal modeling approach to a larger class of power converters...
This paper presents various strategies in a systematic way to reduce both differential mode (DM) and common mode (CM) noise using passive filter in a dc-fed motor drive. The type of grounding and components used is the key to a good design in order to optimize filter size and performance. Grounding schemes, materials comparison (ferrite vs. nanocrystalline core) and a new integrated filter structure...
This paper presents the application of black-box terminal characterization models (BBTC) for the simulation and analysis of distributed power electronics systems composed by commercial power electronics converters and filter modules. The models are shown to effectively predict the transient and steady state response of interconnected distributed power systems. They are also used to predict the small-signal...
Terminal models have been used for various applications. In this work a terminal model is proposed for electromagnetic interference characterization. The model starts with a non-linear system at a particular operating condition and creates a complete linearized equivalent circuit. All parameters needed to create the model are clearly defined to maximize accuracy. In addition, the accuracy and uniqueness...
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