ПЕРСПЕКТИВИ ЗАСТОСУВАННЯ ПАРАЛЕЛЬНИХ АКТИВНИХ ФІЛЬТРІВ З НАКОПИЧУВАЧАМИ ЕНЕРГІЇ ДЛЯ ПІДВИЩЕННЯ ЕНЕРГОЕФЕКТИВНОСТІ ТРИФАЗНИХ ЧОТИРИПРОВІДНИХ СИСТЕМ ЕЛЕКТРОПОСТАЧАННЯ

Purpose. Derivation of the calculated ratios for energy inputs and capacity of energy storage (АE) and estimation of economic efficiency prospects from the use of parallel active filters (PAF) with АE on the example of a three-phase four-wire power supply system for hostel No. 7 KNUTD. Methodology. The economic and energy efficiency of the electrotechnical complex "three-phase four-wire power supply system - PAF with АБ" is estimated by the ratio ofpayment for electricity through a two-tariff system and energy losses in the power cable. The analytical conditions of the expediency of applying the PAF with АБ on the indicator of saving payment for electricity are investigated. Findings. The paper substantiates the concept of constructing a three-phase power supply system with the PAF and АБ for the possibility of redistributing the daily energy consumption schedule for the interval of the preferential tariff and demonstrating the prospective economic efficiency indicators using the example of a three-phase four-wire power supply system for hostel No. 7 KNUTD. Originality. New analytical dependences of the relative daily payment and increase of the heat load of the transmission lines on the value of the energy storage capacity are redistributed during the redistribution of the daily energy consumption schedule for the interval of the preferential tariff. Practical value. These dependencies can be used to optimize the relationship between capital and operating costs when developing a business plan for upgrading the power supply system of a hostel or any other educational facility. [ABSTRACT FROM AUTHOR]