Abstract:
Currently, the use of FACTS devices for voltage regulation and optimal control of electric power
system modes is widely used. Controlled FACTS devices, based on power electronics, allow obtaining the
desired characteristic of not only power transmission, but also a dedicated part of the electrical system. The
paper presents the results of a study of the operating modes of a real distribution network, taking into account
the installation of a static thyristor compensator (STC), in order to increase its operating reliability. The
efficiency of distribution networks in and the area of existence of modes significantly depend on the
installation location and the law of power control of compensating devices. To solve this problem, a systems
approach based on graph theory methods is proposed. The conditions for stabilizing nodal voltages to reduce
total active power losses in the electrical network are studied. The ranges of change in the required powers
with the corresponding STC control laws are determined to ensure a minimum of total power loss in the
network
