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POWER ENGINEERING: economics, technique, ecology
ISSN 1813-5420 · e‑ISSN 2308-7382 Open Access · CC BY 4.0
Issue · 2026

85

Vol. · 3
Published Oct 2026
Articles 21
Authors 52
§ Table of contents

Articles

DYNAMIC ENERGY EFFICIENCY MODEL OF A SOLAR HEAT SUPPLY SYSTEM WITH SEASONAL BOREHOLE THERMAL ENERGY STORAGE

Kirill Slizhevskyi, Olha Chernousenko, Olexander Nedbailo

The growing demand for decarbonization of heat supply systems necessitates the development of efficient technologies for long-term thermal energy storage. One of the…

#Borehole Thermal Energy Storage (BTES) #solar heat supply #seasonal thermal energy storage #transient heat conduction
p. 149-158
10.20535/1813-5420.3.2026.363529

ANALYSIS OF THE IMPACT OF VENTILATION SYSTEM EFFICIENCY ON THE ENERGY CONSUMPTION OF BUILDINGS WITH DIFFERENT LEVELS OF THERMAL INSULATION IN THE CLIMATIC CONDITIONS OF UKRAINE

Inna Bilous, Viktor Shkliar, Viktoriia Dubrovska, Semen Kramarenko

Objective The study aims to determine the impact of changing the thermal insulation characteristics of the building envelope and implementing a heat-recovery ventilation…

#thermal retrofitting #energy efficiency of buildings #insulation #ventilation systems
p. 159-168
10.20535/1813-5420.3.2026.362058

IMPROVEMENT OF METHODS OF DISTRIBUTION NETWORK TOPOLOGY MANAGEMENT

Vladimir Popov, Olena Yarmoliuk, Vadym Tkachenko, Vladyslav Natalych, Denys Beregovyi

The article considers the issues of increasing the effectiveness of solving the most widespread and relevant for electric power distribution systems problem of…

#distribution networks #alternative energy sources #distributed generation #dynamic control of modes of operation
p. 18-27
10.20535/1813-5420.3.2026.365104

IMPROVED FUZZY METHOD FOR SCHEDULING ELECTRIC VEHICLE CHARGING IN A PARKING FACILITY

Serhii Balyuta, Lyudmila Kopylova, Maksym Zhukov, Denis Zhukov, Maksym Vlasov, Petro Zinkevych

The purpose of the study is to develop and improve an interpretable fuzzy method for operational scheduling of electric vehicle charging in a parking facility under a…

#electric vehicle #parking facility #charging scheduling #fuzzy logic
p. 28-36
10.20535/1813-5420.3.2026.370300

NUMERICAL SIMULATION OF PHASE CHANGE PROCESSES IN A HORIZONTAL THERMAL ENERGY STORAGE UNIT WITH OPTIMIZED TUBE LAYOUT AND FINNED SURFACES

Iryna Sukhodub, Yevhen Lazariev

The aim of this study is to determine the optimal spatial layout of a heat exchanger tube bundle within a rectangular domain of a horizontal latent heat thermal energy…

#latent heat thermal energy storage #phase change material #tube bundle #finning
p. 54-64
10.20535/1813-5420.3.2026.366600

NONLINEAR CURRENT CONTROL OF AN ALKALINE ELECTROLYZER FOR HYDROGEN PRODUCTION, TAKING INTO ACCOUNT THE VOLTAGE LIMITATION OF THE CONVERTER

Anton Toropov, Liliia Toropova, Mykhailo Haiko

A nonlinear mathematical model of the current stabilization system is constructed, taking into account the power limitation of the converter, the inertia of the…

#electrolyzer #current stabilization #linear-quadratic regulator #nonlinear control
p. 76-82
10.20535/1813-5420.3.2026.364565

HIGH-RESPONSE DC MICROMOTORS: AN ANALYTICAL METHODOLOGY FOR SELECTING MAGNETIC LOADINGS AND ARMATURE ARCHITECTURE BY THE ELECTROMECHANICAL TIME-CONSTANT CRITERION

Mykhailo Kovalenko, Viktor Grebennikov, Andrii Stulishenko, Yevhen Ihnatiuk

The purpose of the study is to construct a closed, dimensionally consistent SI analytical methodology for estimating and minimizing the electromechanical time constant…

#DC micromotor #electromechanical time constant #dynamic response #magnetic loading
p. 83-88
10.20535/1813-5420.3.2026.369073

INVESTIGATION OF SYSTEM SAFETY IN LFP BACKUP POWER SYSTEMS AND SYNTHESIS OF A MULTI-LAYER PROTECTION ARCHITECTURE

Andrii Doroshenko, Dmytro Kolomiets

The paper examines the gas-explosion hazard of LFP batteries used in residential and basement premises of multi-apartment buildings in Ukraine and substantiates priority…

#battery backup power system #lithium iron phosphate battery #system safety #abnormal operating mode
p. 98-111
10.20535/1813-5420.3.2026.362979

DEVELOPMENT OF A DIGITAL TWIN OF AN ELEVATOR ELECTRIC DRIVE SYSTEM BASED ON THE STOCHASTIC ARIMAX MODEL

Stefan Zaichenko, Yevhen Filatov

Elevators are the most critical infrastructure elements of modern multi-storey buildings. The reliability of their electric drives directly affects passenger safety. The…

#digital twin #mathematical model #reliability #elevator electric drive
p. 112-118
10.20535/1813-5420.3.2026.359666