Title :
Study of the Influences on Soil Resistivity Caused by HVDC Mono-polar Operation
Author :
Huang, Zhen ; Wu, Guangning ; Jiang, Wei ; Xiao, Hua ; Guan, Lan
Author_Institution :
Luzhou Electr. Power Corp., Luzhou, China
Abstract :
UHVDC transmission system has many advantages, such as transferring large amounts of electrical power over long distances. It plays an important role in the west to east power transmission project. The ground electrode of UHVDC was working in several kA currents for long-term when it works in mono-polar operation. And there is high temperature of the soil around the ground electrode in that time. The normal operation of ground electrode can be impacted by the soil resistivity around it. Porous media model is introduced in this paper. Based on this model, impact of temperature on soil resistivity is presented. And the relationship of current density and soil resistivity is analyzed. Then, an experiment was done to validate it.
Keywords :
HVDC power transmission; current density; electrical resistivity; electrodes; soil; HVDC monopolar operation; UHVDC transmission system; current density; electrical power; ground electrode; porous media model; power transmission project; soil resistivity; Conducting materials; Conductivity; Current density; Electrodes; Grounding; HVDC transmission; Land surface temperature; Power transmission; Skeleton; Soil; UHVDC; mono-polar operation; porous media; soil resistivity;
Conference_Titel :
High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-3823-5
Electronic_ISBN :
978-1-4244-2810-6
DOI :
10.1109/ICHVE.2008.4773916
