Starting of Large Synchronous Motor Using Static Frequency Converter

This paper deals with the synchronous starting of a large synchronous motor, using a static thyristor frequency converter system. This method, in the following called, Converter Starting, is described. Special inverter questions are treated and the results of analytical and computer studies of the system and of a field test are presented. Potential applications of the method are dewatered starting in the pumping mode of reversible pumped-storage generator/motors and the starting of large synchronous condensers. The same equipment can also be used for braking the machines.