EQUIVALENT CIRCUITS OF A SYNCHRONOUS GENERATOR IN A VARIABLE-SPEED WIND TURBINE FOR POWERING A REVERSE OSMOSIS WATER DESALINATION PROCESS LINE

• Дата: 2026
• Автори та афіліації: P. Vasko — Institute of Renewable Energy of NAS of Ukraine, Kyiv, Ukraine; V. Rybalchenko — Institute of Renewable Energy of NAS of Ukraine, Kyiv, Ukraine
• Ключові слова: keywords
• Автори: Vasko , P., Rybalchenko , V.
• Формат: Стаття
• Мова: Українська
• Опубліковано: Institute of Renewable Energy National Academy of Sciences of Ukraine 2026
• Теми: wind turbine; synchronous generator; vector diagram; alternating current; complex numbers; desalination; armature reaction; electrical circuit.
• Онлайн доступ: https://ve.org.ua/index.php/journal/article/view/610
• Назва журналу: Vidnovluvana energetika

 Synchronous generators are widely used as part of wind power plants operating in parallel with a centralized power system. At present, the application of high-capacity autonomous wind power plants with synchronous generators for powering various process configurations, in particular water desalination by reverse osmosis, is becoming increasingly relevant. The development of rational circuit and engineering solutions for integrating wind power into this technology requires analysis of load operating conditions of all components over a wide range of operating wind speeds and rotational speeds. Effective modeling and computational studies of electromechanical processes in such systems can be implemented through the use of equivalent circuits of the equipment. Within the framework of this study, nonlinear and linear equivalent circuits of a synchronous generator phase with rotor magnetic asymmetry have been developed for a wide range of rotational speeds. The circuits take into account the inductance of the armature reaction and the presence of a braking mode caused by the magnetic torque acting to align the magnetically asymmetric rotor along the magnetic flux of the armature reaction. The research is based on the two-reaction theory for synchronous electrical machines and the application of alternating current circuit analysis using complex numbers. The circuits were constructed using a phasor diagram of the generator armature winding EMF on the complex plane. The developed equivalent circuits enable computational studies of electromechanical transient processes in power supply systems based on wind power plants, taking into account the pulsations of wind speed, rotation frequency, and load changes. Ref. 32, Fig. 8.