Development of accurate system models of immunity test setups might be extremely time consuming or even impossible. Here a new generalized approach to develop accurate component-based models of different system-level EMC test setups is proposed on the example of a BCI test setup. An equivalent circuit modelling of the components in LF range is combined with measurement-based macromodelling in HF range. The developed models show high accuracy up to 1 GHz. The issues of floating PCB configurations and incorporation of low frequency behaviour could be solved. Both frequency and timedomain simulations are possible. Arbitrary system configurations can be assembled quickly using the proposed component models. Any kind of system simulation like parametric variation and worst-case analysis can be performed with high accuracy.

Computer simulation of electrostatic discharge (ESD) for simplified objects is described and compared to measured transient fields of human/metal ESD. The simulation algorithm uses the method of moments in time domain, coupled with nonlinear arc resistance model. Transient currents and fields are analyzed from the electromagnetic compatibility (EMC) point of view. Validation of the numerical simulation is done by comparison to experimental data. The simulated structure models the human/metal ESD in its peak current and field values and their derivatives reasonably well.

Abslmcl-Large and complex systems from the EMC point of view are objects that contain different structures and requiring individual composed methods for modeling as well as calculation. Automobiles, aircrafts, or PCB's with devices are large and complex systems. This paper describes activities that were done to handle automotive EMC problems with computer simulations.A set of methods was compiled to allow in a first stage the fast calculation model generation, and to apply in a second stage with minimum user interaction accurate and fast multi step hybrid methods. The focus of this paper is less on the methods itself but more on the completeness of the process chain that is required to do successful simulations of automobiles or other large systems.

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The commonly used Transfer Impedance, ZT, measurement methods for shielded cables and connectors for high voltage applications in Electric and Hybrid Electric Vehicles might be difficult to handle and reproducibility might be low. Alternative methods to measure ZT are required. In this article, the methods, Ground Plate Method and Capacitive Voltage Probe Method are introduced. The methods do not require special setups and can handle even large cable‐connector systems. Performance has been investigated by comparisons to ZT measurements using well established methods, i.e. Triaxial‐ and Line‐Injection‐Method. Performance and limitations of the proposed methods for both cable and cable‐connector systems are discussed. Measurement results were compared to analytical formulas for ZT. It could have been shown that accuracy of proposed, easier to apply and more flexible alternative methods is in the same range as Triaxial‐ and Line‐Injection‐Method. © 2016 Wiley Periodicals, Inc. Int J RF and Microwave CAE 26:359–366, 2016.

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Abstract. In the power drive system of the Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs), High Voltage (HV) cables play a major role in evaluating the EMI of the whole system. Transfer impedance (ZT) is the most commonly used performance parameter for the HV cable. To analyse and design HV cables and connectors with better shielding effectiveness (SE), appropriate measurement and simulation methods are required. In this paper, Ground Plate Method (GPM) with improvements has been proposed to measure ZT. Use of low-frequency ferrites to avoid ground-loop effects has also been investigated. Additionally, a combination of analytical model with a circuit model has been implemented to simulate limitations (frequency response) of the test setup. Also parametrical studies using the analytical model have been performed to analyse the shielding behaviour of HV cables.

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