INSULATING MEDIUM DISCHARGE STREAMER SIMULATION METHOD CONSIDERING OFFSET AND BIFURCATION
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United States of America Patent
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Issued Date -
Aug 3, 2023
app pub date -
Aug 10, 2022
filing date -
Jan 30, 2022
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Abstract
Disclosed is a discharge streamer simulation method considering offset and bifurcation. In the method, an insulating medium is arranged in an electric field environment, the number range of discharge streamer bifurcation points in the insulating medium and the number range of effective electron avalanches generated by each bifurcation are measured, a control equation and a boundary condition for streamer simulation are constructed based on a hydrodynamic drift diffusion model and a bipolar charge carrier model, model parameters corrected based on an electron avalanche development probability theory are introduced in the equation solving process, mathematical description and simulation calculation of a streamer offset and a bifurcation phenomenon are realized, and the electric field distribution and charge distribution accompanying the discharge streamer development process considering offset and bifurcation can be finally obtained.
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