Determination of Partial Discharge Inception Voltage and Location of Partial Discharges by Means of Paschen’s Theory and FEM

Parent, Guillaume; Rossi, Mathieu; Duchesne, Sophie; Dular, Patrick

doi:10.1109/tmag.2019.2902374

Cited by 16 publications

(11 citation statements)

References 9 publications

(24 reference statements)

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“…The key to the problem of partial discharges is in a good design of the busbar, as recorded by Parent et al [179]. New developments in busbar are necessary, and their improvement will allow reducing partial discharges.…”

Section: Partial Dischargesmentioning

confidence: 99%

A Comprehensive Review of Operation and Control, Maintenance and Lifespan Management, Grid Planning and Design, and Metering in Smart Grids

Hernández-Callejo

2019

Energies

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New technological advances based on software, hardware and new materials must be implemented in smart grids. In addition, these advanced electrical grids must incorporate elements of artificial intelligence. Advances in software development must be complemented with the development of new hardware (power electronics and active distribution among others). The aforementioned must rely on the development of new materials and sensors, which should be integrated into the smart grid. Therefore, the four areas of research based on the technologies are: Operation and Control, Maintenance and Lifespan Management, Grid Planning and Design, and Metering. The review presents the algorithms, materials, devices and others paradigms applied to smart grids, classifying the works according to the four areas of research. This review has focused on the four fundamental pillars of smart grids, on the one hand, the need for more efficient operation and control, followed by advanced maintenance management, to continue planning and designing the new grids, and for conclude with the advanced measurement. As you will see in the article, new devices, new techniques, and future scenarios will make possible the transition from the current grid to the future smart grid.

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Section: Partial Dischargesmentioning

confidence: 99%

A Comprehensive Review of Operation and Control, Maintenance and Lifespan Management, Grid Planning and Design, and Metering in Smart Grids

Hernández-Callejo

2019

Energies

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“…The simulations performed in the absence of a third wire can be used as a reference and will also allow us to test the validity of the straight line assumption. The method hereby followed to determine PDIV is similar to what has been presented previously [22]. The electrostatic simulation run is two-fold.…”

Section: A Overviewmentioning

confidence: 99%

“…where e = curl u and d s is a source field ensuring div d s = ρ such that d s and u are related to the electric induction, denoted d , as follows [22,23,26]:…”

Section: A Overviewmentioning

confidence: 99%

“…One of them involves a simulation based on a scalar potential formulation followed by an ad-hoc reconstruction of field lines [11], which constitutes a numerically intensive postprocessing. An alternative is to follow a two-step numerical approach [8,22], combining a vector potential formulation, which allows to retrieve field lines, with a scalar formulation providing the corresponding voltage drops. The use of the vector formulation comes with a simplified post processing, but may become laborious depending on the topology of the problem studied [23].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of Finite Element Simulation Methodologies for the Use of Paschen’s Law in the Prediction of Partial Discharge Risk in Electrical Windings

2020

Self Cite

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The prediction of partial discharge (PD) occurrence in electrical motors at the design phase is key to the development of future devices. As a result, there is a growing interest for predictive numerical tools to help assess partial discharge risk. Currently, most efforts rely on Paschen's law as a criterion for partial discharge occurrence between two neighboring wires. Its use requires field lines data obtained with finite element electrostatic simulations. In this paper, we explore the extent to which these finite element simulations can be simplified without losing accuracy regarding subsequent partial discharge risk assessment using Paschen's law. First, we examine whether partial discharge risk predictions between two turns are influenced by the presence of other turns nearby. Our results suggest that the partial discharge is mostly a local phenomenon hardly affected by the surroundings. Performing simulations for an isolated pair of conductors may thus be sufficient to determine the maximum allowable constraints between two turns, at least for large wires. Also, we show that neglecting field line curvature in the calculation does not alter predictions, vindicating the straight line assumption which has been adopted in the literature for the sake of simplicity.

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“…Two materials used in standard aeronautical components are chosen here; a polyimide (PI/FEP) and a polyetheretherketone (PEEK), to examine the proposed PDIV estimation approach. Also, it can be found in many models existing in the literature that the dielectric constant εr' and the conductivity σAC are generally defined from suppliers datasheets and their variations with temperature, frequency and electric field are not always considered [3][4][5]. In some cases, this can affect the accuracy of the electric field calculation and thus, the estimation of PDIV.…”

Section: Introductionmentioning

confidence: 99%

Partial Discharge Inception Voltage: Precise and Robust Numerical Estimation Based on Extensive Dielectric Spectroscopy Measurements

Kemari

Belijar²,

Laudebat

et al. 2021

2021 IEEE Electrical Insulation Conference (EIC)

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This paper provides a robust experimentalsimulation approach in predicting the partial discharge inception voltage (PDIV) for aeronautical applications. First, two polymers used as insulators in aeronautic components have been selected in this work, a polyimide and a polyetheretherketone. To study the electrical behavior of these materials, extensive dielectric spectroscopy measurements are carried out for different electric fields, temperatures and frequencies (E, T, and f). Then, a needleplane configuration is adopted for PDIV modeling using finiteelement method (FEM). As the model is strongly dependent upon the accurate estimation of the electric field, dielectric characterizations results are integrated in simulations to improve the precision of calculations. Thereafter, the PDIV can be estimated with the aid of Townsend's theory. Finally, a comparison between measured and computed PDIV values is presented and discussed.

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Determination of Partial Discharge Inception Voltage and Location of Partial Discharges by Means of Paschen’s Theory and FEM

Cited by 16 publications

References 9 publications

A Comprehensive Review of Operation and Control, Maintenance and Lifespan Management, Grid Planning and Design, and Metering in Smart Grids

A Comprehensive Review of Operation and Control, Maintenance and Lifespan Management, Grid Planning and Design, and Metering in Smart Grids

Assessment of Finite Element Simulation Methodologies for the Use of Paschen’s Law in the Prediction of Partial Discharge Risk in Electrical Windings

Partial Discharge Inception Voltage: Precise and Robust Numerical Estimation Based on Extensive Dielectric Spectroscopy Measurements

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