Frequency domain simulation of conducted EMI in power electronic converters considering internal near field couplings by FEM

Takahashi, Katsutoshi; Ibuchi, Takaaki; Funaki, Tsuyoshi

doi:10.1109/emceurope.2017.8094780

Cited by 9 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The researchers studied the multi-physics, which are (Magnetic fields and Laminar Flow) in the three areas: First: coil geometry analysis [33,34], Second: stationery [35][36][37][38], and Third: frequency domain [39][40][41][42].…”

Section: Methodsmentioning

confidence: 99%

Simulation: Early Detection of Brain Vessels Stroke by Applying Electromagnetic Waves Non-Invasively

Elshahat¹,

Ashraf²,

Waleed³

et al. 2021

IJRITCC

View full text Add to dashboard Cite

Introduction: Early recognition of stroke with its two types Ischemic and Hemorrhagic, is one of the most crucial research points, commonly used methods are CT- (computerized tomography), and MRI- (Magnetic resonance imaging). These techniques cause a delay in the detection of the condition, which causes permanent disability. The main reason behind the fatal consequences of stroke is the delay of detection. Therefore, this research paper aims to early detection of the type of stroke without delay until the appropriate diagnosis of each type is made, and then the appropriate treatment without delay. Method: Using a non-invasive and fast technique to determine the stroke type by wave, we simulate and design a vessel containing a liquid as a laminar flow with the same density and velocity of blood, and it was surrounded by a Homogenized multi-turn coil consisting of (n) turns to represent the magnetic field, using specific frequency (HZ) with Electrical field in coil current (A) to see the changing in magnetic flux density (MFD), Depending on the changes in MFD, the flow of blood in laminar flow can be affected by clotting (Ischemic) or Hemorrhagic (cutting) in our vessel designed. We have built three different scenarios to apply the technique which are: First: Normal Scenario (where the blood in vessel has no problem), second: clotting (ischemic, where the vessel blocked in specific three position) and Third: Cutting (Hemorrhagic, where the vessel cut in certain nine positions). Results: This paper presents-through our own design-the studying of applying the electromagnetic waves on blood inside the vessel to detect the stroke type in our three scenarios (normal, ischemic three positions or hemorrhagic nine positions), Studying the magnetic field and laminar flow. This study covered in three areas. First: coil geometry analysis, Second: stationary, and Third: frequency domain. through the changes in Magnetic Flux Density -MFD- waves. The results were promising and distinct for distinguishing between the three scenarios which are normal, ischemic (3 positions) and hemorrhagic (9 positions) the results of MFD are: 0.09 to 3.3*10^-3, 0.08 to 3.15*10^-4, 0.15 to 6.2*10^-3 respectively.

show abstract

Section: Methodsmentioning

confidence: 99%

Simulation: Early Detection of Brain Vessels Stroke by Applying Electromagnetic Waves Non-Invasively

Elshahat¹,

Ashraf²,

Waleed³

et al. 2021

IJRITCC

View full text Add to dashboard Cite

show abstract

“…The voltage rise time of the switching device and the size and shape of the load circuit affect EMI to a large extent. In the research on radiation modeling of components, it is necessary to first establish the three-dimensional models of capacitors and inductors in CST software (Takahashi et al, 2017), and use finite element simulation to achieve threedimensional electromagnetic field modeling and radiation characteristic analysis of circuit components. The effect of nearfield radiated interference generated by components on the performance of EMI filters can be analyzed using the frequency domain solver of CST.…”

Section: Modeling Of Radiated Emimentioning

confidence: 99%

EMI challenges in modern power electronic-based converters: recent advances and mitigation techniques

Yuan,

Zhang,

Liang

et al. 2023

Front.Electron.

View full text Add to dashboard Cite

The utilization of power electronic-based converters is gaining momentum across a wide spectrum of industries. However, modern power electronic converters operate at higher frequencies compared to conventional power electronic converters, which can lead to higher rates of change in voltage and current during phase switching, and thus potentially produce more severe conducted and radiated electromagnetic interference (EMI). Their electromagnetic compatibility (EMC) has become a critical research topic, and EMI in high-frequency power electronic-based converters is more complex than that in conventional converters. This review presents a comprehensive survey of recent advancements, EMI design, and analysis of modern power electronic-based converters, focusing on the sources and mechanisms of both conducted and radiated EMI, and mitigating techniques. This review also covers the impact of topology optimization, control strategy design, and packaging design on EMC performance. Addressing emerging EMI issues in modern power electronic device-based converters is essential for ensuring safe and reliable operations. Through strategic design optimization and the implementation of EMI mitigation strategies, modern converters can seamlessly be integrated into diverse applications, offering improved EMI performance as a hallmark of their versatility.

show abstract

“…From Fig. 1 (b), the parasitic capacitance resulting from the insulating layer (SiN) in the tested SiC power module is obtained by (4). Here, S is parallel plates of area, d is separation distance and is the dielectric permittivity.…”

Section: A Operating Condition Of Dc-dc Buck Convertermentioning

confidence: 99%

“…There has been increasing interest in predicting and suppressing EMI of SiC-based power conversion circuit to suffice the electromagnetic compatibility (EMC) regulations (e.g., CISPR and FCC). Many papers and technical reports mention that it is important to identify parasitic inductance around the power devices in the circuit [3][4][5][6]. The authors have evaluated parasitic inductance of interconnect wiring and visualized high-frequency noise current distribution in 2-D structure SiC half-bridge power module [7].…”

Section: Introductionmentioning

confidence: 99%

A Study on Equivalent Circuit Modeling of Wiring Inductance in SiC Power Module for Predicting Conducted EMI of Power Converter

Kyotani

Ibuchi

Funaki

et al. 2020

2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)

Self Cite

View full text Add to dashboard Cite

Silicon Carbide (SiC) power semiconductor devices achieve low switching losses with fast switching operation and miniaturized power conversion circuit. SiC power module for high voltage and large current is subject to large di/dt and dv/dt in switching transient. Large di/dt induces surge voltage and ringing oscillation by interacting with circuit parasitic inductance and capacitance. These are fatal factors for electromagnetic interference (EMI) of the circuit. This report studies modeling of parasitic inductance in SiC power module based on threedimensional (3-D) electromagnetic analysis to realize low EMI design for power conversion circuit. The developed Partial Equivalent Element Circuit (PEEC) model of SiC power module is applied to circuit analysis. The simulated time response of voltage/current in switching operation and frequency spectrum of the conducted EMI for the tested converter agree with the measurement result well.

show abstract

Frequency domain simulation of conducted EMI in power electronic converters considering internal near field couplings by FEM

Cited by 9 publications

References 8 publications

Simulation: Early Detection of Brain Vessels Stroke by Applying Electromagnetic Waves Non-Invasively

Simulation: Early Detection of Brain Vessels Stroke by Applying Electromagnetic Waves Non-Invasively

EMI challenges in modern power electronic-based converters: recent advances and mitigation techniques

A Study on Equivalent Circuit Modeling of Wiring Inductance in SiC Power Module for Predicting Conducted EMI of Power Converter

Contact Info

Product

Resources

About