Three-level converter power unit double pulse test method

The invention discloses a three-level converter power unit double pulse test method. On the basis of a conventional two-level topology converter double pulse test idea, upper and lower bridge arms of a three-level converter power unit are decomposed reasonably, and comprehensive tests can be carried out on various conversion working conditions of the three-level converter power unit, device switching time, absorption circuit overvoltage absorption effect and drive short-circuit protection, and thus provided is a simple and effective test method for the development of a three-level converter.