Analysis and mitigation of EMI in DC–DC converters using QR interaction
| Autor: | Uma Govindarajan, Archana Subramanian |
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| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020208 electrical & electronic engineering 02 engineering and technology Monodromy matrix Converters 01 natural sciences Stability (probability) Electromagnetic interference Control and Systems Engineering EMI Control theory 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronic engineering Time domain Electrical and Electronic Engineering business Spurious relationship 010301 acoustics Parametric statistics |
| Zdroj: | IET Circuits, Devices & Systems. 11:371-380 |
| ISSN: | 1751-8598 1751-858X |
| Popis: | DC–DC converters have led rapid development in electrical engineering owing to their virtuous assets in industrial field. Wide utilisation of power equipment in various arenas has led to stringent electromagnetic interference (EMI) and this issue is more common in DC–DC converters. In this study, a method has been put forward to mitigate EMI in peak current mode controlled elementary DC–DC converters by introducing quasi resonant (QR) intrusion. Results are demonstrated with time domain simulations which are attained from an exact non-linear time varying model developed without any quasi-static approximation. Stability analysis is performed using monodromy matrix based on Filippov's method. Experimental findings are found to agree well with simulation and arithmetical results, thereby confirming the qualitative and quantitative behaviour of the system for different parametric deviations. In addition, it is observed that the QR intrusion improves the stable operating regime and makes the converter electromagnetically compatible by mitigating the spurious signals. |
| Databáze: | OpenAIRE |
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