Overvoltage Protection System of HVDC system connected to AC network

摘要

Optional temporary overvoltage arrester and transient over-voltage generated by the HVDC system is linked to the AC grid using jangchieul is provided with a control system that can be controlled overvoltage. HVDC systems are associated with over-voltage AC grid systems, HVDC system is the first line arrester terminal device (1) is connected to the busbar of the AC grid connection; and Second arrester device line terminal (2) is connected to the ground terminal 1 'of the first arrester device; and Third arrester device connected "line terminals (3) is connected to the ground terminal and the ground wire (3) The grounding terminal 2 'of the second lightning protection device; and A first switching device which is opened and closed by a ground terminal (1 ') with a control signal connection between the controller and the temporary over-voltage wire of the first ground lightning protection device; and The second connection between the ground terminal (2 ') and the ground wire of the arrester device, and a second switching device which is opened and closed by a control signal of a transient over-voltage controller; and includes a first switching element and controls the temporary over-voltage, the second switching device is characterized in that for controlling the transient over-voltage. ;