EPE Association: EPE 2022 - LS4b: EMI/EMC in Power Electronics including HF Phenomena

EPE 2022 - LS4b: EMI/EMC in Power Electronics including HF Phenomena
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 03: Measurement and Control > EPE 2022 - LS4b: EMI/EMC in Power Electronics including HF Phenomena

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   Common-Mode EMI Noise Modeling of Three-Level T-Type Inverter for Adjustable Speed Drive System
By Vefa KARAKASLI [View]
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Abstract: This article studies the EMI noise modeling of a three-level T-type inverter (3LT2I) for adjustable speed drive (ASD) systems. A methodology to generate the common-mode (CM) voltages in the time-domain is proposed based on SiC MOSFETs switching behavior, such as the variable rise and fall times. The frequency spectrums of the time-domain voltages are used with the CM noise paths to predict the CM current of the 3LT2I. The CM noise model of the 3LT2I consists mainly of two CM noise sources. The effect of these noise sources on the CM current is investigated. The proposed EMI noise prediction method is validated by the comparison between the simulation and experimental results of the CM voltage and CM current spectrums.

   EMI Mitigation Induced by An IGBT Driver Based on A Controlled Gate Current Profile
By Daniel Sting MARTINEZ [View]
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Abstract: The transistors used in power electronics applications are source of electromagnetic interference(EMI) during switching process. In this work a gate current profile to reduce conducted EMI is proposed. It is based on the gate charge curve and it allows to control the conducted EMI generation with two degrees of freedom. In order to evaluate the performance of proposed method, it is compared with a validated method in the literature, namely, CATS method. It is shown that, for the same level of power switching losses, the conducted EMI generation is less with the proposed method.

   Improvement of the EMI Filter Attenuation Using Shielding
By Mohammad ALI [View]
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Abstract: The parasitic couplings between EMI filter components strongly impact the high-frequency attenuation of an EMI filter. One of the most effective ways to reduce the magnetic and capacitive couplings between components and improve the high-frequency attenuation is placing a conductive shield between filter components. Therefore, this paper analyzes and investigates the shielding enclosure's size and volume effect on EMI filter performance in common-mode (CM) and differential-mode (DM) configurations using copper shields positioned over a CM choke.

EPE 2022 - LS4b: EMI/EMC in Power Electronics including HF Phenomena
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2022 ECCE Europe - Conference > EPE 2022 - Topic 03: Measurement and Control > EPE 2022 - LS4b: EMI/EMC in Power Electronics including HF Phenomena
	[return to parent folder]

	Common-Mode EMI Noise Modeling of Three-Level T-Type Inverter for Adjustable Speed Drive System By Vefa KARAKASLI	[View] [Download]
Abstract: This article studies the EMI noise modeling of a three-level T-type inverter (3LT2I) for adjustable speed drive (ASD) systems. A methodology to generate the common-mode (CM) voltages in the time-domain is proposed based on SiC MOSFETs switching behavior, such as the variable rise and fall times. The frequency spectrums of the time-domain voltages are used with the CM noise paths to predict the CM current of the 3LT2I. The CM noise model of the 3LT2I consists mainly of two CM noise sources. The effect of these noise sources on the CM current is investigated. The proposed EMI noise prediction method is validated by the comparison between the simulation and experimental results of the CM voltage and CM current spectrums.

	EMI Mitigation Induced by An IGBT Driver Based on A Controlled Gate Current Profile By Daniel Sting MARTINEZ	[View] [Download]
Abstract: The transistors used in power electronics applications are source of electromagnetic interference(EMI) during switching process. In this work a gate current profile to reduce conducted EMI is proposed. It is based on the gate charge curve and it allows to control the conducted EMI generation with two degrees of freedom. In order to evaluate the performance of proposed method, it is compared with a validated method in the literature, namely, CATS method. It is shown that, for the same level of power switching losses, the conducted EMI generation is less with the proposed method.

	Improvement of the EMI Filter Attenuation Using Shielding By Mohammad ALI	[View] [Download]
Abstract: The parasitic couplings between EMI filter components strongly impact the high-frequency attenuation of an EMI filter. One of the most effective ways to reduce the magnetic and capacitive couplings between components and improve the high-frequency attenuation is placing a conductive shield between filter components. Therefore, this paper analyzes and investigates the shielding enclosure's size and volume effect on EMI filter performance in common-mode (CM) and differential-mode (DM) configurations using copper shields positioned over a CM choke.