Predictive current control method of 12-pulse parallel-connected thyristor dual converter system

摘要

The present invention relates to a 12-pulse parallel-connected di-raster dual converter system for operating a 12-pulse parallel-connected DC motor for rolling fixation, by using a predictive current control method, thereby eliminating the use of an interphase reactor (IPR) The present invention relates to a method for controlling a predicted current of a converter system, wherein the cost of a thyristor is reduced due to the development of a device by operating a 12-pulse parallel-connected diode-ladder dual converter system excluding the use of an interphase reactor (IPR) Since there are also devices with a large current rating, it is economically more effective to eliminate the reactor which can not be lowered in price.