Electromagnetic Dispersion Modeling and Measurements for HVDC Power Cables

Gustafsson, Stefan; Biro, T.S.; Çınar, Gökhan; Gustafsson, Mats; Nilsson, Börje; Nordebo, Sven; Sjöberg, Mats

doi:10.1109/tpwrd.2014.2324181

Cited by 13 publications

(4 citation statements)

References 24 publications

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“…Putting (30) and (31) in (27) gives, (33) So, (33) gives the relationship between voltage and current in phase domain of cable with multiple semiconducting screens.…”

Section: Impedance Of Cable In Phase Domainmentioning

confidence: 99%

Effects of Multiple Semiconducting Screens on Line Parameters and Wave Properties of Underground Cable

Ghosh

Ghosh²,

Das

2019

IEEE Access

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Along with the geometric and electromagnetic properties, incorporation of multiple semiconducting screens in an underground (UG) power cable influences the primary line parameters as well as wave properties of the cable. The impacts of multiple semiconducting screens in UG cable structure compared to the cable with single and without semiconducting screen have been reported in this paper. The effective impedance of conductor-semiconductor assembly in cable structure is determined based on the electromagnetic theory of tubular conductor. Further, the complete impedance matrix of the UG cable with multiple semiconducting screens is determined in both mesh and phase domain and reported in this paper. The expressions of the impedances of UG cable with multiple semiconducting screens as obtained using the electromagnetic approach also have been reproduced using the conventional loop current method to justify the robustness and accuracy of the adopted approach. Comparative analyses of various line parameters and wave properties between UG cables with multiple, single and without semiconducting screens have been carried out by varying the frequency as well as semiconducting screen properties. Such analyses indicate that the inclusion of multiple semiconducting screens can lead to the improvement in wave properties of UG cable in high frequency zone. INDEX TERMS Attenuation, loop current, phase constant, phase domain, semiconductor, skin depth, double layered conductor.

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“…Putting (30) and (31) in (27) gives, (33) So, (33) gives the relationship between voltage and current in phase domain of cable with multiple semiconducting screens.…”

Section: Impedance Of Cable In Phase Domainmentioning

confidence: 99%

Effects of Multiple Semiconducting Screens on Line Parameters and Wave Properties of Underground Cable

Ghosh

Ghosh²,

Das

2019

IEEE Access

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“…As a consequence, in this new approach the multiplicities of the zeros cannot be computed explicitly. 4 An alternative to is the derivative-free form given by [101,111] …”

Section: Solving the Characteristic Equationmentioning

confidence: 99%

Pseudo-Analytical Modeling for Electromagnetic Well-Logging Tools in Complex Geophysical Formations

Rosa¹

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“…However, this latter inference on the model input importance can be made only if all model inputs have the same unit; otherwise, the absolute values of S ∂ i cannot be compared. To circumvent this scale limitation, it is common practice to introduce a normalization factor for S ∂ i so as to make the results commensurable (e.g., [96]). Frequently adopted weights are the input-output base case values (i.e.,…”

Section: Differential Sensitivity Analysismentioning

confidence: 99%

Sensitivity Analysis and Power Systems: Can We Bridge the Gap? A Review and a Guide to Getting Started

2021

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Power systems are increasingly affected by various sources of uncertainty at all levels. The investigation of their effects thus becomes a critical challenge for their design and operation. Sensitivity Analysis (SA) can be instrumental for understanding the origins of system uncertainty, hence allowing for a robust and informed decision-making process under uncertainty. The SA value as a support tool for model-based inference is acknowledged; however, its potential is not fully realized yet within the power system community. This is due to an improper use of long-established SA practices, which sometimes prevent an in-depth model sensitivity investigation, as well as to partial communication between the SA community and the final users, ultimately hindering non-specialists’ awareness of the existence of effective strategies to tackle their own research questions. This paper aims at bridging the gap between SA and power systems via a threefold contribution: (i) a bibliometric study of the state-of-the-art SA to identify common practices in the power system modeling community; (ii) a getting started overview of the most widespread SA methods to support the SA user in the selection of the fittest SA method for a given power system application; (iii) a user-oriented general workflow to illustrate the implementation of SA best practices via a simple technical example.

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Electromagnetic Dispersion Modeling and Measurements for HVDC Power Cables

Cited by 13 publications

References 24 publications

Effects of Multiple Semiconducting Screens on Line Parameters and Wave Properties of Underground Cable

Effects of Multiple Semiconducting Screens on Line Parameters and Wave Properties of Underground Cable

Pseudo-Analytical Modeling for Electromagnetic Well-Logging Tools in Complex Geophysical Formations

Sensitivity Analysis and Power Systems: Can We Bridge the Gap? A Review and a Guide to Getting Started

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