Conditions for reproducing power consumption in electrical networks

Abstract

he article defines the conditions under which continuous current control of electrical power consumption in large, branched high-voltage electrical networks is possible. The fact is that for complete hardware current continuous control of electrical power consumption, it is necessary to have active and reactive power sensors at each node of the electrical network (at each substation) and their connection with dispatching control centers. For countries with large distances between grid nodes and control centers, this requires huge capital expenditures. Therefore, it is much more expedient to place power and voltage sensors in separate nodes and then calculate the remaining nodes using Kirchhoff's laws. Under these conditions, the system of equations using the nodal potential method becomes non-canonical, that is, the known parameters in it are part of the nodal currents and part of the nodal potentials. Such a system does not always have a unique solution, and it depends on the correct placement of power and voltage sensors. But the placement of sensors must be carried out before calculations, therefore the task of determining the conditions for correct placement of sensors without preliminary calculations is relevant, which is considered in the article.