Bobrovnyk V. Management of electricity consumption of higher education institutions to improve their energy efficiency

The scientific novelty of the obtained results and the provisions submitted for defense is the deepening of existing, development and substantiation of new approaches to power management and reduction of electricity losses in the electrical infrastructure of higher education institutions to improve their energy efficiency. The findings of the research are as follows: 1. For the first time the method of the analysis of levels of power consumption taking into account special periods of educational process, seasonality and increase of efficiency of use of an auditory fund is offered that allowed to receive the mathematical device for planning of expenses for power supply of institution of higher education; 2. Mathematical models for forecasting specific electricity consumption by institution of higher education infrastructure objects were further developed taking into account the energy efficiency class of buildings, which allowed to reliably assess electricity consumption levels and provide feasibility study for the introduction of shunt active filter to reduce losses in institution of higher education infrastructure; 3. New analytical expressions are obtained for the component of full power of three-phase four-wire power supply system, which is due to the main harmonic of neutral current and distortion power according to known values of active and reactive powers of separate phases, which are used to calculate additional electricity bases; 4. The method of controlling a shunt active filter of a three-phase four-wire power supply system has been improved. The practical significance of the obtained results of the work is to improve the methods and means of managing the modes of electricity consumption to increase the energy efficiency of electrical complexes of the infrastructure of higher education institutions. The use of simulation results allows developing methodological recommendations for the implementation of a set of energy saving measures in the educational institution, taking into account the existing engineering infrastructure and increasing the efficiency of electricity consumption management. Keywords: institution of higher education, power management, power consumption model, power losses, shunt active filter with energy storage, energy management.