Current-based EMF-assessment method for vehicles

Willmann, Benjamin; Rabe, Hanno; Leugers, Christoph; Sassi, Oussama; Waldera, Christian; Vick, Ralf

doi:10.1109/emceurope.2019.8871776

Cited by 2 publications

(3 citation statements)

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“…This method has been recently developed [80] specifically for exposure to WPT systems characterized by strong field gradients [84]. The standard does not clarify the method used to determine the GGSM values that relate the external B-field with the internal quantity E i or J i and that are reported for a range of frequency values and normalized B-field gradient g(B) = (dB/dp)/B, where p is a generic coordinate (see Figure 4).…”

Section: Generic Gradient Source Model (Ggsm)mentioning

confidence: 99%

“…A step ahead is the use of coupling factors for other measurable external quantities, such as in particular the current in specific portions of an apparatus [14,84], particularly useful from two standpoints: it does not require a B-field measurement that can be easily related to the circuit currents using the Biot-Savart formulation and it is a precious indication of compliance and related margins already during design and assembly.…”

Section: Generic Gradient Source Model (Ggsm)mentioning

confidence: 99%

“…In some cases, when selected positions may influence the results (including uncertainty due to field gradient), thee relevant standards make a thorough specification, as for electric vehicles and the 3 positions at car seats of IEC 62905 and the 7 points on seat and console of the Chinese std. GB/T 37130, discussed in [84].…”

Section: Human Exposure Assessmentmentioning

confidence: 99%

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Assessment of Human Exposure (Including Interference to Implantable Devices) to Low-Frequency Electromagnetic Field in Modern Microgrids, Power Systems and Electric Transports

Mariscotti

2021

Energies

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Electromagnetic field emissions of modern power systems have increased in complexity if the many power conversion forms by means of power electronics and static converters are considered. In addition, the installed electric power has grown in many everyday applications such as wireless charging of vehicles, home integrated photovoltaic systems, high-performance electrified transportation systems, and so on. Attention must then be shifted to include harmonics and commutation components on one side, as well as closer interaction with humans, that concretizes in impact on physiological functions and interference to implantable medical devices and hearing aids. The panorama is complex in that standards and regulations have also increased significantly or underwent extensive revisions in the last 10 years or so. For assessment, the straightforward application of the limits of exposure is hindered by measurement problems (time or frequency domain methods, positioning errors, impact of uncertainty) and complex scenarios of exposure (multiple sources, large field gradient, time-varying emissions). This work considers thus both the clarification of the principles of interaction for each affected system (including humans) and the discussion of the large set of related normative and technical documents, deriving a picture of requirements and constraints. The methods of assessment are discussed in a metrological perspective using a range of examples.

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Section: Generic Gradient Source Model (Ggsm)mentioning

confidence: 99%

Section: Generic Gradient Source Model (Ggsm)mentioning

confidence: 99%