Conducted EMI Prediction in DC/DC Converter Using Frequency Domain Approach

Benhadda, Nassireddine; Bendaoud, Abdelber; Chikhi, Nawel; Abdelkader, Dahak; Belhenini, Soufyane

doi:10.1109/cistem.2018.8613398

Cited by 9 publications

(4 citation statements)

References 7 publications

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“…This part of research typically aims to quantify EMI in the conducted mode for a buck converter, and this for different approaches already mentioned. We opted for analysis in the time domain [24] instead of the frequency domain [25] for direct modeling of EMI. This simple analysis is performed using circuit simulation software (ISIS PROTEUS, SPICE, and PSIM).…”

Section: Conducted Disturbance Analysis For the Different Methodsmentioning

confidence: 99%

A proposal of structure and control overcoming conducted electromagnetic interference in a buck converter

M’barki¹,

Rhazi²,

Mejdoub³

2022

IJPEDS

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This paper describes modelling a step-down chopper designed for a photovoltaic application to study its performance of electromagnetic compatibility (EMC) in conducted mode. The EMC measurements attended at this stage have shown that the buck converter is a harmful device for its electromagnetic environment. Indeed, the fast-switching operation leads to higher levels of conducted and radiated electromagnetic interference (EMI) and subsequently facilitates the electromagnetic coupling with the surrounding environment. In this sense, we present a new proposal of structure and control based on a combination of two techniques, namely pseudo-random modulation and soft switching, thus minimizing the conducted electromagnetic emissions at the source. The usefulness of this new strategy, evaluated through a comparative study, lies in its efficiency compared to the classical PWM method, allowing both to reduce the rise of current and voltage gradients and spread the electromagnetic spectrum over a wide frequency range. The simulation results prove that a significant gain in EMC has been reached.

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Section: Conducted Disturbance Analysis For the Different Methodsmentioning

confidence: 99%

A proposal of structure and control overcoming conducted electromagnetic interference in a buck converter

M’barki¹,

Rhazi²,

Mejdoub³

2022

IJPEDS

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“…The configuration of the employed chopper encompasses a power source, a conducted emissions measurement device (LISN), a control architecture, and a switching cell integrated with a filter and a resistive output load (refer to Figure 11). It is noteworthy that the voltage 𝑉 𝑙𝑖𝑠𝑛 recorded across the LISN serves as a representation encapsulating both differential and common-mode disturbances [23]. Int J Adv Appl Sci, Vol.…”

Section: Soft Switching: Zero Current Switchingmentioning

confidence: 99%

Strategic electromagnetic interferences suppression in boost converters: zero-switch techniques

M'barki,

Ait Salih,

Mejdoub

et al. 2024

IJAAS

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This article delves into the growing demand for efficient power conversion technologies accompanying the rise in electric vehicle (EV) adoption. Boost converters, essential for increasing the battery pack voltage to propel EV motors, pose a challenge due to the electromagnetic interference (EMI) generated by the high switching frequency of power devices. To address this issue, practitioners employ zero-voltage switching (ZVS) and zero-current switching (ZCS) techniques. In this comparative study, we systematically evaluate the effectiveness of these soft switching techniques in reducing conducted EMI in boost converters designed for EV applications. The results illuminate the potential of both ZVS and ZCS in significantly mitigating EMI emissions when compared to conventional hard-switching methods. Notably, ZVS soft switching emerges as more efficient and effective, particularly under higher loads, while ZCS soft switching excels in reducing EMI at lighter loads. In conclusion, the study asserts that ZVS soft switching presents a more promising solution for curtailing conducted EMI in boost converters for EV applications, particularly in high-load scenarios. However, it underscores the importance of considering specific operational conditions when deciding between the two techniques.

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“…Conducted and radiated EMI are the two types of EMI [14]. Electromagnetic energy created by an electronic device can be transmitted or linked through metallic conductors, resulting in conductive emissions [15], [16]. Radiated emissions [17], on the other hand, are electromagnetic radiation generated by electronic equipment propagated in free space.…”

Section: Buck Converter Study and Measurement Of Conducted Disturbancesmentioning

confidence: 99%

A novel fuzzy logic control for a zero current switching-based buck converter to mitigate conducted electromagnetic interference

M’barki¹,

Rhazi²,

Mejdoub³

2023

IJECE

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<span lang="EN-US">This research provides a new control technique for mitigating conducted electromagnetic interference (EMI) in a buck converter designed for solar applications. Indeed, hard-switching direct current to direct current (DC-DC) converters, commonly used in industrial applications, pose a significant risk to the surrounding environment regarding electromagnetic compatibility (EMC). Usually, the fast-switching phase induces abrupt changes in current and voltage, which adds to substantial electromagnetic interference in both conducted and radiated modes and excessive auditory noise. An architecture based on the duality of soft-switching topology and fuzzy logic control technology is developed to address these issues. On the one hand, resonant circuit topologies are used to induce switches to achieve soft switching conditions, which subsequently lessen the effects of EMI. On the other hand, the adoption of fuzzy logic control technology is interesting since it can reduce electrical stresses during switching. Furthermore, the simulation results show that zero current switching (ZCS) soft-switching closed-loop fuzzy logic converters outperform typical open-loop converters and soft-switching closed-loop converters with proportional integral (PI) control in terms of EMC requirements.</span>

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Conducted EMI Prediction in DC/DC Converter Using Frequency Domain Approach

Cited by 9 publications

References 7 publications

A proposal of structure and control overcoming conducted electromagnetic interference in a buck converter

A proposal of structure and control overcoming conducted electromagnetic interference in a buck converter

Strategic electromagnetic interferences suppression in boost converters: zero-switch techniques

A novel fuzzy logic control for a zero current switching-based buck converter to mitigate conducted electromagnetic interference

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