Singular perturbation‐based model reduction of power electronic circuits
| Autor: | Mohammad Abid Bazaz, Hadhiq Khan, Shahkar Ahmad Nahvi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Model order reduction Approximation theory Singular perturbation 020208 electrical & electronic engineering 02 engineering and technology 01 natural sciences Reduction (complexity) Control and Systems Engineering Control theory Approximation error 0103 physical sciences Boost converter 0202 electrical engineering electronic engineering information engineering Transient (oscillation) Electrical and Electronic Engineering Electronic circuit Mathematics |
| Zdroj: | IET Circuits, Devices & Systems. 13:471-478 |
| ISSN: | 1751-8598 1751-858X |
| Popis: | Here, the authors present a model order reduction (MOR) framework based on singular perturbation approximation to accelerate the simulation of high-fidelity power electronic converters. The problem of slow simulation speeds caused due to the wide span of the eigenvalues is mitigated by implementing the proposed framework. The dynamics of the original stiff system is approximated by neglecting the transient contribution of the non-dominant eigenvalues and retaining the steady-state contribution of all the eigenvalues of the system. The model reduction problem has been reformulated to fit the switched nature of these circuits. An error bound for the approximation method has been derived. The method is demonstrated on a DC–DC boost converter and a Class-E amplifier. Significant improvement in speed and reduction in the size of the solution arrays is achieved. It is seen that the reduced-order models are able to replicate the response of the original models and the approximation error is within acceptable limits. |
| Databáze: | OpenAIRE |
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