Method and device for testing thyristor converter valve assembly

The invention relates to the technical field of high-voltage direct-current power transmission, and discloses a method and device for testing a thyristor converter valve assembly, and the method comprises the steps: arranging a first electrode and a third electrode at two ends of a to-be-tested converter valve assembly, and arranging a second electrode at a conductive connection part between two thyristor levels in the middle; testing: inputting forward and reverse voltages into a section between the first electrode and the second electrode and a section between the third electrode and the second electrode while sending a conduction signal to the thyristor stage; and detecting current in a loop of the first electrode and the second electrode and current in a loop of the third electrode and the second electrode in real time, and judging whether the converter valve assembly is conducted or not. The test voltage is reduced by half, the safety risk caused by the high-voltage test is reduced, the design volume of