EPE Association: EPE 2020 - DS3d: EMI/EMC in Power Electronics

EPE 2020 - DS3d: EMI/EMC in Power Electronics
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 02: Power Converter Topologies and Design > EPE 2020 - DS3d: EMI/EMC in Power Electronics

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   Experimental EMI study of a 3-phase 100kW 1200V Dual Active Bridge converter using SiC MOSFETs
By Hadiseh GERAMIRAD [View]
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Abstract: 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.

   Frequency-domain simulation of power electronic systems based on multi-topology equivalent sources modelling method
By Stephane VIENOT [View]
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Abstract: ElectroMagnetic Interference (EMI) simulation of power converters helps engineers in the design process. In this paper, we describe a frequency-domain simulation method based on the Multi-Topology Equivalent Sources (MTES) model. The aim is to reproduce the non-linear behavior of power switches for a fast evaluation of the conducted EMI. The method performance is validated on a DC-DC converter.

   Investigation of Improvement of Modeling precision for Conducted Noise on an Isolated AC/DC Converter using SiC Devices
By Kazuki KUWANA [View]
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Abstract: This paper presents the simulation method of conducted noise on isolated AC/DC converter using SiC devices. The leakage current is measured to derive the equivalent circuit. In addition, this paper proposes the simulation method with EMI _lters. The usefulness of the proposed simulation method is con_rmed by comparing the simulation result and the experimental result.

   Modeling and analysis of conducted EMI on flyback converter using power management IC with chaotic suppression EMI
By Jiaqi DIAO [View]
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Abstract: In this paper, CM and DM transfer function of EMI models are used to simulate conducted EMI on flyback converter. The EMI model in this paper considers main parameter of the components to forecast EMI. The experimental results validate that the suggested model can roughly predict conducted EMI. Liu chaotic system, as the chosen one, is put into a power management chip because of its effective inhibition. The realization of Liu chaotic system of a hardware circuit is optimized. Using the least components to implement this chaotic circuit can reduce the power at the same time. This first chaotic power management chip on the market will be used in a flyback to elaborate its practical value.

   Modeling of a DAB under phase-shift modulation for design and DM input current filter optimization
By Glauber DE FREITAS LIMA [View]
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Abstract: This paper investigates Differential Mode Conducted (DMC) current and the power factor produced by a Dual Active Bridge (DAB) converter operated under phase-shift control. Power factor and the first harmonic are modeled with respect to the static gain versus an output parametrized current dimensionless plane. It is shown that voltage and output current ranges have a significant impact on the magnitude of the reactive power and filter effort, which can therefore compromise the performance in operating frame. Especially, the DMC should be considered in the Dual Active Bridge (DAB) converter design optimization to avoid EMI filter oversizing or non-compliance on EMC standards.

EPE 2020 - DS3d: EMI/EMC in Power Electronics
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 02: Power Converter Topologies and Design > EPE 2020 - DS3d: EMI/EMC in Power Electronics
	[return to parent folder]

	Experimental EMI study of a 3-phase 100kW 1200V Dual Active Bridge converter using SiC MOSFETs By Hadiseh GERAMIRAD	[View] [Download]
Abstract: 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.

	Frequency-domain simulation of power electronic systems based on multi-topology equivalent sources modelling method By Stephane VIENOT	[View] [Download]
Abstract: ElectroMagnetic Interference (EMI) simulation of power converters helps engineers in the design process. In this paper, we describe a frequency-domain simulation method based on the Multi-Topology Equivalent Sources (MTES) model. The aim is to reproduce the non-linear behavior of power switches for a fast evaluation of the conducted EMI. The method performance is validated on a DC-DC converter.

	Investigation of Improvement of Modeling precision for Conducted Noise on an Isolated AC/DC Converter using SiC Devices By Kazuki KUWANA	[View] [Download]
Abstract: This paper presents the simulation method of conducted noise on isolated AC/DC converter using SiC devices. The leakage current is measured to derive the equivalent circuit. In addition, this paper proposes the simulation method with EMI _lters. The usefulness of the proposed simulation method is con_rmed by comparing the simulation result and the experimental result.

	Modeling and analysis of conducted EMI on flyback converter using power management IC with chaotic suppression EMI By Jiaqi DIAO	[View] [Download]
Abstract: In this paper, CM and DM transfer function of EMI models are used to simulate conducted EMI on flyback converter. The EMI model in this paper considers main parameter of the components to forecast EMI. The experimental results validate that the suggested model can roughly predict conducted EMI. Liu chaotic system, as the chosen one, is put into a power management chip because of its effective inhibition. The realization of Liu chaotic system of a hardware circuit is optimized. Using the least components to implement this chaotic circuit can reduce the power at the same time. This first chaotic power management chip on the market will be used in a flyback to elaborate its practical value.

	Modeling of a DAB under phase-shift modulation for design and DM input current filter optimization By Glauber DE FREITAS LIMA	[View] [Download]
Abstract: This paper investigates Differential Mode Conducted (DMC) current and the power factor produced by a Dual Active Bridge (DAB) converter operated under phase-shift control. Power factor and the first harmonic are modeled with respect to the static gain versus an output parametrized current dimensionless plane. It is shown that voltage and output current ranges have a significant impact on the magnitude of the reactive power and filter effort, which can therefore compromise the performance in operating frame. Especially, the DMC should be considered in the Dual Active Bridge (DAB) converter design optimization to avoid EMI filter oversizing or non-compliance on EMC standards.