Reference Setup for RF Impedance Measurements with High DC Bias Currents

Kerfin, Oliver; Harm, Martin; Willmann, Benjamin

doi:10.1109/emceurope.2019.8872095

Cited by 6 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two kinds of LISN are often used, a 5 µH line impedance according to CISPR 25 [30] or 50 µH according to CISPR 16-1-2 [41]. The 50 µH LISN is typically used to test devices connected to the utility [42] while the 5 µH LISN is mainly used to test devices for vehicles [43].…”

Section: Standards For Electromagnetic Emissionmentioning

confidence: 99%

Proposals for Updated EMC Standards and Requirements (9–500 kHz) for DC Microgrids and New Compliance Verification Methods

Weyen

Tichelen

2023

Electronics

View full text Add to dashboard Cite

This paper is aimed at making new proposals for developing future Electro-Magnetic Compatibility (EMC) standards tailored to DC microgrids in a frequency range between 9 and 500 kHz. In particular, new EMC proposals are made to reduce Electro-Magnetic Interference (EMI) with arc hazard detection and narrowband power line communication (PLC). To achieve this, first, arc detection requirements, PLC standards and existing EMC standards are reviewed. Next, new proposals are made to specify EMC requirements for equipment in DC microgrids in terms of conducted emission, immunity (9–500 kHz) and minimum impedance requirement (>40 kHz). The minimum impedance requirement is a new type of requirement and the relevant compliance testing method is developed. The new EMC proposals also distribute frequency bands to support arc detection and narrowband PLC. Then, to show the feasibility and advantage of proposed EMC codes, this paper develops a new arc detection method, which relies on only measuring the arc noise voltage (40–100 kHz) in a single point of the grid and does not need one or more current measurements. A total of three test cases are presented to show the feasibility of the arc detection method and the significance of having an EMC minimum impedance requirement. The executed tests for this paper also show that new EMC proposals are feasible and promising for DC microgrids. This concept and approach are the major novelties of this paper. The specific EMC threshold levels for conducted noise, immunity, and impedance within a frequency range between 9 and 500 kHz will need to be further fine-tuned based on the microgrid application parameters and further gathering of experimental data.

show abstract

Section: Standards For Electromagnetic Emissionmentioning

confidence: 99%