MATHEMATICAL MODEL AND EXPERIMENTAL INVESTIGATION OF THE WIND ENERGY CONVERSION PROCESS IN A "WIND TURBINE – PERMANENT MAGNET INDUCTION HEATER" SYSTEM

• Datum: 2026
• Hauptverfasser: Holovko , V., Mikhalin , V.
• Format: Artikel
• Sprache: Ukrainisch
• Veröffentlicht: Institute of Renewable Energy National Academy of Sciences of Ukraine 2026
• Schlagworte: wind turbine; eddy currents; Foucault currents; permanent magnets; induction heating; heat generation.
• Online Zugang: https://ve.org.ua/index.php/journal/article/view/634
• Назва журналу: Vidnovluvana energetika

A mathematical model and experimental research methodology have been developed for the wind energy conversion process in the "wind turbine – permanent magnet induction heater" electromechanical system. The study aims to address the relevant task of improving the energy efficiency of autonomous heat supply systems by directly converting the mechanical rotational energy of the wind turbine rotor into thermal energy using a permanent magnet induction heater, thereby bypassing the intermediate stage of electrical generation. For the theoretical evaluation of energy processes, a mathematical model based on an equivalent circuit is proposed. It considers the setup as a system of inductively coupled circuits representing a moving magnetic field source and a stator. The conversion of mechanical energy into thermal energy is described through a transition from a moving system to an equivalent stationary one with an alternating current. The electromagnetic parameters were calculated using standard electrical engineering methods. The determination of useful thermal power is based on calculating the eddy current amplitude via the complex impedance of the system. The research was conducted for stators made of stainless steel (AISI 304), aluminium (AISI 3003), and copper (AISI C12500) under various rotor speed conditions. A comparison of the calculated results with experimental data demonstrated a discrepancy within 15% for copper and aluminium, and up to 20% for stainless steel. The proposed mathematical model can be applied for preliminary engineering calculations.