Verfahren zur Parallellaufregelung von Stufentransformatoren

摘要

The invention relates to a method for the parallel regulation of step transformers which act in arbitrary switching combinations on a two-rail bus system. …In this arrangement, each step transformer is associated with a separate controller which acts on the associated motor drive which, in turn, actuates the associated step switch. …In the method according to the invention, the current transformer configuration is first sensed in a parallel control device, then the current amplitude and phase values of voltage and current of all step transformers are transferred to this device, from which the part-load current and reactive circuit current are determined for each step transformer and from this an influencing quantity is formed for the respective voltage controllers. ……