Open AccessQuasi-static analysis of susceptibility of the spacecraft power bus bar to the effects of electrostatic discharge
Author(s) -
Anna V. Drozdova,
Maxim E. Komnatnov
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1862/1/012009
Subject(s) - busbar , schematic , electrostatic discharge , bar (unit) , attenuation , electrical engineering , spacecraft , electric power transmission , waveform , power (physics) , voltage , electromagnetic shielding , transmission line , ground , physics , acoustics , engineering , optics , aerospace engineering , quantum mechanics , meteorology
We performed a quasi-static analysis of susceptibility of the spacecraft power bus bar to the effects of electrostatic discharge (ESD). For the analysis, we used a schematic diagram of a power bus bar model with branch conductors. The schematic diagram consists of series-connected transmission lines, which represent the cross-sections of each power bus bar element. An ESD pulse with a current shape of fourth severity level was accepted as an excitation. The work shows the voltage waveforms at the beginning and end of the power bus bar when ESD impacts the branch conductors. We localized the maximum amplitude of the voltage in the bus section under ESD exposure. It revealed that when ESD affects the shielding tape covering the negative branch, there is a maximum attenuation (13.5 times) at the positive branch and a minimum attenuation (1.6 times) at the negative branch.