Fast prediction for conducted EMI in flyback converters

Liu, Jianwei; Wang, Yi; Jiang, Dan; Cao, Qunsheng

doi:10.1109/compem.2015.7052622

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…It is therefore essential to evaluate the levels of EM disturbances of these systems from the design phase. Although regular efforts to develop predictive models of electromagnetic disturbances [1]- [5], the measurement remains essential for complex embedded systems in the automotive industry. In addition, despite the improvement of systemoriented modeling and the computing power available over the last twenty years, the direct use of existing simulation tools (MATLAB, PSIM, SABER, CST Studio) for the analysis of a large system, considering all the strong interactions between subsystems, is an almost impossible mission.…”

Section: Introductionmentioning

confidence: 99%

Co-simulation of Circuit/Circuit type Solvers for EMC Applications Using a New Relaxation Method

Diallo

Vollaire

Bréard

et al. 2022

2022 International Symposium on Electromagnetic Compatibility – EMC Europe

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This paper studies a new co-simulation scheme for coupled problems that is based on the principle of the adapted transmission line with an application to circuit-circuit type coupled simulations. Co-simulation between two or more circuit solvers is usually based on waveform relaxation methods and it results in an iterative process whose convergence depends on the type of interface variables (IVs) on the interface between the subcircuits. The convergence of the IVs of this new method is tested in two examples of circuit simulations: a functional simulation of a Buck converter and an EMC simulation.

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Section: Introductionmentioning

confidence: 99%

Co-simulation of Circuit/Circuit type Solvers for EMC Applications Using a New Relaxation Method

Diallo

Vollaire

Bréard

et al. 2022

2022 International Symposium on Electromagnetic Compatibility – EMC Europe

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“…The layout of the converter differs in each application which makes it difficult to have a general solution for different converters. Moreover, changing the parasitic elements of each components of the converter as well as the converter structure after prototype completion is time consuming and costly [19].…”

Section: Introductionmentioning

confidence: 99%

Experimental EMI study of a 3-phase 100kW 1200V Dual Active Bridge Converter using SiC MOSFETs

Geramirad

Morel

Dworakowski

et al. 2020

2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

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This paper presents a system-level EMI investigation in a new 3-phase 1.2kV 100kW insulated DC/DC converter. In this prototype, achieving full operation was prevented by false triggering of semiconductors due to large common-mode current through gate drivers. A passive filter embedded into the structure of the transformer to connect it to the ground is proposed as a corrective and cost effective solution to mitigate the electromagnetic interferences. New grounding layout enabled to reduce the common-mode current through gate drivers by up to 75% without decreasing the switching rate. This allowed to proceed to measurements on the prototype at nominal operation. The method is validated in simulation and extensive experimental results have been obtained from the considered prototype. This proved the feasibility of the proposed solution and showed the effect of the transformer design in EMI behavior of insulated DC/DC converters.

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