Research on insulation protection of high voltage and high power confluence structure of aerospace based on electric field simulation

In this paper, combining with a certain aerospace high-voltage and high-power distribution equipment, the uneven electric field distribution of the confluence structure, the low-pressure discharge characteristics of small gap, the creep safety control path and the characteristics of the flashover and breakdown along the surface of insulating materials were studied. Based on the analysis and research of high voltage discharge characteristics, targeted to carry out optimization and improvement of insulation protection design of high-power confluence structure, reduced the formation of uneven electric field in the high-power confluence structure under high potential difference, avoided the hidden danger of discharge in the low-pressure environment in the local small gap, increased the creepage path design of the structure, eliminated the risk of surface flashover and breakdown, fundamentally the reliability of the high voltage equipment can be improved.