Analysis of ionized field under HVDC transmission lines with buildings nearby

As more and more HVDC transmission lines are constructed in China, they are bound to go pass buildings, so we are more concerned about the ionized field under HVDC transmission lines when buildings exist nearby. Many methods have been developed to calculate the ionized field under HVDC transmission lines without buildings nearby, but the method to calculate the ionized field under HVDC transmission lines with buildings nearby has not been reported. In this paper, based on the Deutsch assumption, a method to analyze the ionized field under HVDC transmission lines with buildings nearby is proposed. The validity of the method is testified by the comparison of the calculation results and the experimental measurement results and some conclusions are proposed finally.