Behavior of a fully controlled rectifier from a power group

The paper deals with the behavior of a rectifier with thyristors as part of a power group. Data acquisition systems and original software are used. Information on the standards used for the equipment construction and numerical processing are provided. Two distinct power-related theories are discussed when applied to distorting and/or unsymmetrical regimes. The harmonic decompositions based on Fast Fourier Transform (FFT) are used and implemented into an original software for the a.c. three-phase side. The discussed power-related theories are applied for the rectifier's input. For the d.c. side one presents the records corresponding to voltage and current. The d.c. and harmonic active powers are determined. One deals with the flow of active power along the fundamental and higher harmonics toward and from the main generator excitation through the fully controlled rectifier with thyristors.