A new approach of power electronic design using a nonlinear average model
ISSN: 0332-1649
Article publication date: 9 November 2012
Abstract
Purpose
The present work aims to explain how the nonlinear average model can be used in power electronic integration design as a behavioral model.
Design/methodology/approach
The nonlinear average model is used in power electronic integration design as a behavioral model, where it is applied to a voltage source inverter based on IGBTs. This model was chosen because it takes into account the nonlinearity of the power semiconductor components and the wiring circuit effects, which can be formalized by the virtual delay concept. In addition, the nonlinear average model cannot distinguish between slow and quick variables and this is an important feature of the model convergence.
Findings
The paper studies extensively the construction of the nonlinear average model algorithm theoretically. Detailed explanations of the application of this model to voltage source inverter design are provided. The study demonstrates how this model illustrates the effect of the nonlinearity of the power semiconductor components' characteristics on dynamic electrical quantities. It also predicts the effects due to wiring in the inverter circuit.
Research limitations/implications
More simulations and experimental analysis are still necessary to improve the model's accuracy, by using other static characteristic approaches, and to validate the applicability of the model to different converter topologies.
Practical implications
The paper formulates a simple nonlinear average model algorithm, discussing each step. This model was described by VHDL‐AMS. On the one hand, it will assist theoretical and practical research on different topologies of power electronic converters, particularly in power integration systems design such as the integrated power electronics modules (IPEM). On the other hand, it will give designers a more precise behavioral model with a simpler design process.
Originality/value
The nonlinear average model used in power electronic integration design as behavioral model is a novel approach. This model reduces computational costs significantly, takes physical effects into account and is easy to implement.
Keywords
Citation
Benachour, R., Latreche, S., El Hadi Latreche, M. and Gontrand, C. (2012), "A new approach of power electronic design using a nonlinear average model", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 31 No. 6, pp. 1726-1756. https://doi.org/10.1108/03321641211267092
Publisher
:Emerald Group Publishing Limited
Copyright © 2012, Emerald Group Publishing Limited