Development of a passive impedance network for modeling electric vehicle traction batteries for EMI measurements

Jeschke, Sebastian; Maarleveld, Marc; Baerenfaenger, J.; Hirsch, Holger; Tsiapenko, Sergii; Waldera, Christian; Obholz, Martin

doi:10.1109/emceurope.2017.8094615

Cited by 19 publications

(3 citation statements)

References 2 publications

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“…In [18], the magnetic field was measured and compared in different test environments, such as in EMC chamber and in open area. In [19], a passive impedance network for EV batteries was developed, to investigate the differences between a resistive load, which is usually used for EMC measurements.…”

Section: Introductionmentioning

confidence: 99%

EMC of Inductive Automotive Charging Systems According to Standard SAE J2954

Sulejmani,

Beltle,

Tenbohlen

2023

Vehicles

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To increase the acceptance of electric vehicles (EVs), inductive charging technology can be an important tool because of the simplified charging process for the user. This paper presents the fundamentals of wireless power transfer (WPT) for EVs, while focusing on electromagnetic compatibility (EMC). This work deals with the investigation of the conducted and field-bound interference emissions using a WPT system with a max. input power of 3.6 kW. During the research, a new frequency-tracking algorithm is developed, to find the optimal operating frequency at any coil misalignment. The impedance behavior as well as the possible interference paths are investigated, showing the great geometric influence of the test bench setup. The conducted interference currents are analyzed and subsequently filtered. The filter shows good performance in attenuating common mode currents. The measured radiated magnetic field is directly rated against the proposed limits of various standards. Finally, the EMC influence of the direct current (DC) power supply line to the inverter is examined, which is not defined precisely in the standard. This underlines the significance of a standardized test setup, since the limit values can be met under different geometric circumstances of the DC cable.

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Section: Introductionmentioning

confidence: 99%

EMC of Inductive Automotive Charging Systems According to Standard SAE J2954

Sulejmani,

Beltle,

Tenbohlen

2023

Vehicles

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“…In general, there are two methods to reduce EMI, including the active shielding method and the passive shielding method [13][14][15][16][17][18]. The passive shielding is to build an electromagnetic-free chamber for protecting delicate equipment.…”

Section: Introductionmentioning

confidence: 99%

Mitigation of Electro Magnetic Interference by Using C-Shaped Composite Cylindrical Device

et al. 2022

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The extremely low-frequency (ELF) and its corresponding electromagnetic field influences the yield of CMOS processes in the foundry, especially for high-end equipment such as scanning electron microscopy (SEM) systems, transmission electron microscopy (TEM) systems, focused ion beam (FIB) systems, and electron beam lithography (E-Beam) systems. There are several techniques to mitigate electromagnetic interference (EMI), among which active shielding systems and passive shielding methods are widely used. An active shielding system is used to generate an internal electromagnetic field to reduce the detected external electromagnetic field in electric coils with the help of the current. Although the active shielding system reduces the EMI impact, it induces an internal electromagnetic field that could affect the function of nearby tools and/or high-performance probes. Therefore, in this study, we have used a C-shaped cylindrical device combined with an active shielding system and passive shielding techniques to reduce EMI for online monitoring and to overcome the aforementioned issues. In this study, the active shielding system was wrapped with a permalloy composite material (i.e., a composite of nickel and iron alloy) as a tubular device. A C-shaped opening was made on the tubular structure vertically or horizontally to guide the propagation of the electromagnetic field. This C-shaped cylindrical device further reduced electromagnetic noise up to −5.06 dB and redirected the electromagnetic field toward the opening direction on the cylindrical device. The results demonstrated a practical reduction of the electromagnetic field.

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“…Accurate depiction of battery's impedance, charge and discharge processes are important for analysis of the electric networks they are part of, e.g. to understand and model conducted emission on attached cable harnesses [1,2], radiated emission of the same [3] or to precisely predict current ripples produced by power electronic devices switching a batterypowered line [4]. In mentioned works, the battery is replaced with an equivalent circuit model which is a usual approach for network analysis.…”

Section: Introductionmentioning

confidence: 99%

3D model of a commercial 9V alkaline battery for EMC simulation

Hackl

Ibel

Auinger

et al. 2020

Elektrotech. Inftech.

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The modeling of batteries for simulation is nowadays of increasing importance because their behavior and performance has significant influence on the operation of many modern systems, such as electric vehicles (EV), mobile devices, energy storage and many more. But batteries also play an important role in daily electromagnetic compatibility (EMC) testing and measurement tasks, namely if they are used for powering devices under test (DUT) or measurement equipment. In this paper, we demonstrate the impact of a commercial 9V block battery on the result of a bulk current injection (BCI) test when used to supply optical voltage probes attached to the DUT. To illustrate the battery's impact by simulation, a 3D model of selfsame is developed based on its actual internal structure and applying state-of-the-art approaches for battery modeling and commercial 3D EM simulation software. The model is validated by comparison of measurement and simulation of DUT voltages and input current during an actual BCI test.

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Development of a passive impedance network for modeling electric vehicle traction batteries for EMI measurements

Cited by 19 publications

References 2 publications

EMC of Inductive Automotive Charging Systems According to Standard SAE J2954

EMC of Inductive Automotive Charging Systems According to Standard SAE J2954

Mitigation of Electro Magnetic Interference by Using C-Shaped Composite Cylindrical Device

3D model of a commercial 9V alkaline battery for EMC simulation

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