Research for the calculation of the potential transfer energy on ±800kV DC Transmission Lines

[摘要] It would be hard to be repaired in the case of a power outage if the ±800kV ultra high voltage DC (UHVDC) transmission line was put into operation, so live working is the guarantee for its security and stability. It's necessary to calculate potential transfer energy to ensure the safety of the live working personnel. The transfer energy can be calculated by establishing the equivalent model of the process of potential transfer. Potential differences and capacitance parameters can be calculated by the finite element method, thereby transfer energy in different transfer distances can be worked out. The results show that the transfer energy increases with the increase of the transfer distance and the transfer energy reaches to 1.0 J when the distance is 0.5 m. So the potential transfer rod is necessary for the security of the live working personnel on ±800kV DC transmission lines.

[发布机构] School of Electrical Engineering, Shandong University, China^1;Hunan Province Key Laboratory of Intelligent Live Working Technology and Equipment (Robot), Live Working Center of State Grid Corporation of Hunan, China^2

[效力级别] 无线电电子学

[关键词] Capacitance parameter;DC transmission lines;Equivalent model;Potential difference;Potential transfer;Security and stability;Transfer energy;Ultra high voltage DC