Adaptive Balancing of Three-Phase Loads at Four-Wire Supply with Reactive Compensators and Nonsinusoidal Voltage

Abstract

The paper presents fundamentals of an adaptive balancing of three-phase loads supplied from a four-wire line with a nonsinusoidal voltage, with the use of reactive compensators. Parameters of the compensator are calculated using the Currents' Physical Components (CPC) - based power theory. Thyristor Switched Inductors (TSIs) are used to convert a fixed-parameters compensator into an adaptive one. The adaptive compensator is composed of two sub-compensators, one in the Y structure and the other in the $\Delta$ structure. The method is illustrated in the paper with a computer model.