Proceedings ArticleDOI
Influence of a traction battery's input impedance on conducted emissions of an automotive HV inverter
Martin Reuter,T. Friedl,Stefan Tenbohlen,W. Kohler +3 more
- pp 236-241
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TLDR
In this article, the impedance situation for a line filter within a high voltage traction system is characterized and the influence of the changed impedance situation on the attenuation of a first-order low-pass filter is shown by emission measurements.Abstract:
At present, electric traction systems are introduced into automotive applications. The driving power is transmitted via cables, which are routed close to various communication, sensor or control units. Ensuring the electromagnetic compatibility (EMC) of these miscellaneous systems within the electric vehicle is a new challenge for the developing engineers. Line filters are a very effective EMC measure, but a time-consuming and ineffective trial-and-error approach can only be avoided if the input and output impedances of the filters are characterized and known. This paper characterizes the impedance situation for a line filter within a high voltage traction system. It is intended to reduce the conducted emissions of a power inverter for a hybrid driven car. Therefore, the inverter's common and differential mode input impedances are determined. The tested device is modeled as a voltage source combined with an inverter emulating network of concentrated elements. Verifying measurements show that the inverter's EMC performance can be reproduced with the presented inverter emulation. The influence of the changed impedance situation on the attenuation of a first-order low-pass filter is shown by emission measurements.read more
Citations
More filters
Journal ArticleDOI
A Measurement-Based Model of the Electromagnetic Emissions From a Power Inverter
Li Zhai,Natalia Bondarenko,Bingjie Xu,Guanghua Li,Tamar Makharashvili,David Loken,Phil Berger,Thomas P. Van Doren,Daryl G. Beetner +8 more
TL;DR: In this paper, a detailed measurement-based SPICE model of a power inverter system was built in which there is a straightforward correlation between system geometry and parasitic circuit elements, and the model was validated through measurements.
Proceedings ArticleDOI
A Novel Method for High Frequency Battery Impedance Measurements
TL;DR: In this article, a vector network analyzer was used to determine the battery impedance for a wide frequency range from 1 kHz to 300 MHz, where the two-port scattering parameters (S-parameters) of a 18650 Li-ion cylindrical cell were measured with the shunt-through method.
Journal ArticleDOI
Mitigation Emission Strategy Based on Resonances from a Power Inverter System in Electric Vehicles
TL;DR: In this article, a power inverter system was modeled based on series of two-port network measurements to study the impact of EMI generated by power devices on radiated emission of AC cables.
Proceedings ArticleDOI
High frequency impedance of Li-ion batteries
TL;DR: In this article, three different methods to measure the frequency-dependent impedance of actual high-voltage batteries up to 10MHz were compared and compared in a system simulation in order to validate the measured values in contrast to the theoretical ones.
References
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Introduction to Electromagnetic Compatibility
TL;DR: In this paper, the authors present the Phasor Solution Method for calculating per-unit-length parameters and Crosstalk of multiconductor transmission lines for EMC systems.
Book
EMC Analysis Methods and Computational Models
TL;DR: In this paper, the authors present a system decomposition for EMC modeling and EMC decomposition of field couplings using transmission line theory, including shielding cables and Lumped-Parameter Circuit Models.
Book
Fundamentals of Electric Circuit Analysis
TL;DR: This paper presents a meta-analyses of the basic circuit elements and analysis techniques used in the design of the OpAmp and concludes with a discussion of their applications in the energy storage and electronics industries.