Abstract
Partial discharges represent one of the main mechanisms of ageing of dielectrics especially when an alternated current is used. This problem is particularly severe when partial discharges are associated with degenerative phenomena such as the electrical treeing. In this work, we present the latest development of our simulation codes, which are capable of simulating the evolution of discharges in complex three-dimensional geometries through parallel high-performance-computing technologies. The code is capable of both predicting the evolution of some macroscopic quantities, that can be measured directly, and estimating the progression of the internal ageing. For instance, it is possible to simulate the creation of chemically active species in the gas and their interactions with the surfaces of the branches. Some examples of the results obtained in a set of test cases will be discussed here.
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Acknowledgments
This work has been financed by the Research Found for the Italian Electrical System under the Contract Agreement between RSE and the Ministry of Economic Development. The authors wish to thank L. Barbareschi for her valuable contribution and suggestions.
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Villa, A., Barbieri, L., Malgesini, R. (2020). A Model Based on First Principles for the Simulation of Partial Discharges. In: Németh, B. (eds) Proceedings of the 21st International Symposium on High Voltage Engineering. ISH 2019. Lecture Notes in Electrical Engineering, vol 598. Springer, Cham. https://doi.org/10.1007/978-3-030-31676-1_36
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DOI: https://doi.org/10.1007/978-3-030-31676-1_36
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