There is a tendency to increase the use of demand response technology in the Russian Federation along with other developing countries, covering not only large industries, but also individual households and organizations. Reducing peak loads of electricity consumption and increasing energy efficient use of equipment in the power system is achieved by applying demand management technology based on modeling and predicting consumer behavior in an educational institution. The study proposes to consider the possibility of participating in the concept of demand management of educational institutions with a typical workload schedule of the work week. For the study, statistical data of open services and sources, Russian and foreign research on the use of digital and information technologies, analytical methods, methods of mathematical modeling, methods of analysis, and generalization of data and statistical methods of data processing are used. An algorithm for collecting and processing power consumption data and a load planning algorithm were developed, including all levels of interaction between devices. A comparison was made between the values of the maximum daily consumption before and after optimization, as well as the magnitude of the decrease in the maximum consumption after applying the genetic algorithm. The developed algorithm has the ability to scale, which will increase the effect of using the results of this study to more significant values. Load switching helps to reduce peak consumption charges, which often represent a significant portion of the electricity cost.

The paper deals with the actual problem of developing the mathematical model of electromechanical system: conveyor – multimotor electric drive with a frequency converter, with the implementation in Simulink/MatLab, which allows one to perform studies of conveyor operation modes, taking into account the specifics of the mechanism with different electric drives control algorithms. The authors designed the mathematical models of the conveyor and its control system that provides increased uniformity of load distribution between drive motors and restriction of dynamic loads on the belt (over-regulation until 15%).

The article describes a method for reducing the influence of the high harmonics on the operation of reactive power compensation devices. This method based on the variation of the power system resistance and the separation of linear and nonlinear loads. The resistance of the power system within the considered plant is proposed to change by replacing the double-winding transformer to split-winding one. Current harmonic composition data are obtained by measurements at an aluminum plant. In this work calculations of the necessary extent of the system resistance have been made to reach allowed current values on capacitors. The constructed graphs allow to determine the zone of the possible system resistance variation in which the capacitor batteries operate without overloads. Algorithm of methods to reduce high harmonics is used by means of the given criterion.

The paper deals with power supply systems reliability of gas pumping compressor stations. Comparative analysis of the system reliability with hot, warm and cold reserve is processed. The modelling was performed using the software complex “ARBITR”. Dependability measures were determined for different types of power supply systems with different set and number of power sources including centralized power supply system, autonomous power stations and others. Recommendations on the use of various types of redundancy for various structures of power supply systems are given.

Failures statistic data of power supply systems' elements for gas pumping compressor stations are processed in this paper. The distribution functions of operating time between failures, operating time between unplanned repairs, restoration time are chosen for power supply systems' elements. Parameters of Weibull distribution function are determined. The reliability of power supply system for gas pumping compressor station is simulated. Comparative analysis of the system reliability with hot and cold reserve is processed. The role of elements and it's parameters for ensuring reliability are determined. The rational boundaries for increasing of reliability for the most important system elements are determined.

The purpose of undertaken work, part of which was presented in this paper is to develop a system of collecting and processing information for monitoring, diagnosing, and predicting the future condition of the equipment that is needed to increase the coefficient of readiness and, ultimately, the reliability of restored equipment.