METHOD FOR PARALLEL CONTROL OF TRANSFORMERS HAVING STEP SWITCHES

摘要

The invention relates to a method for parallel control of transformers having step switches. All voltage controllers are thereby connected to each other by means of a common data bus. An active current and reactive current are first determined for each step transformer connected in parallel, then the phase angle of an arising total current is determined from the sum thereof, and each circuit reactive current results in turn therefrom, from which ultimately the signed control deviation of each voltage regulator is derived separately for each step switch.