Modeling the Thermal State of a Wind Turbine Generator Considering External Factors †
Fazylova A. Napadailo Y. Rybina G.V. Tultayev B. Iliev T. Stoyanov I.
September 2025Multidisciplinary Digital Publishing Institute (MDPI)
Engineering Proceedings
2025#104Issue 1
This paper presents the mathematical modeling of the thermal state of a 1000 W wind turbine generator (WTG) integrated into a vertical-axis wind turbine (VAWT) system, taking into account external environmental factors, mechanical losses, and the operation of the cooling system. The developed model considers the influence of ambient temperature, wind speed, air humidity, ventilation openings, radiator cooling, and mechanical losses. An analysis was conducted over a range of operating conditions from −20 °C to 50 °C, with wind speeds from 0.5 m/s to 15 m/s and air humidity from 10% to 90%. The nonlinear dependence of the winding temperature on these factors was investigated, and critical operating conditions leading to potential overheating were identified. It was found that high humidity (>70%) increases the winding temperature by 5–10% compared to low humidity (<30%). The developed model can be used to optimize cooling systems and improve the reliability of wind turbines in various climatic conditions. In addition, the proposed model is intended to be integrated into fault detection and diagnosis systems for wind turbines, enabling the identification of potential faults related to thermal overload.
generator winding , humidity , mathematical modeling , temperature , vertical-axis wind turbine
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Department of Electronic Engineering, Almaty University of Power Engineering and Telecommunications, Almaty, 050039, Kazakhstan
Department of Transport Equipment and Organization of Transportation, LB Goncharov Kazakh Automobile and Road Institute, Almaty, 050061, Kazakhstan
Department of Cybernetics, National Research Nuclear University MEPhI, Moscow, 115409, Russian Federation
Department of Telecommunications, University of Ruse, Ruse, 7004, Bulgaria
Department of Electric Power Engineering, University of Ruse, Ruse, 7004, Bulgaria
Department of Electronic Engineering
Department of Transport Equipment and Organization of Transportation
Department of Cybernetics
Department of Telecommunications
Department of Electric Power Engineering
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