DARRIEUS ROTOR SPEED CONTROL BY SIMULTANEOUS CHANGES IN THE ROTOR CONFIGURATION AND THE GENERATOR BRAKING TORQUE

• Datum: 2026
• Hauptverfasser: TARASOV, S. V., MOLOTKOV, O. N.
• Format: Artikel
• Veröffentlicht: текст 3 2026
• Online Zugang: https://journal-itm.dp.ua/ojs/index.php/ITM_j1/article/view/175
• Назва журналу: Technical Mechanics

In recent decades, the "green" power industry has been developing rapidly. The growing interest in generating "green" power has led to a sharp increase in the number of operating systems, among which vertical-axis wind turbines (WT) occupy a significant place. Along with a number of advantages, the most difficult issues when using vertical-axis WTs are ensuring their self-starting and increasing efficiency. Due to the rotation of the turbine about a vertical axis, the aerodynamics of the turbine is more complex than that of a comparable horizontal-axis wind turbine, and knowledge and understanding of these turbines remain far from complete. The introduction of any approaches to improving the properties of a WT as a whole requires an in-depth study and coordination of the operation of its elements to ensure the compatibility of the operation of individual components. The proposed work considers a system to control the rotation of the Darrieus rotor of vertical-axis wind turbines, which consists of three control loops: two loops for changing the length of the blades and traverses and a loop for controlling the braking torque of the permanent magnet generator. The use of a generator to control the rotation of the rotor of a wind turbine is a traditional means of ensuring small deviations in the rotation speed about the point of maximum power for the current wind flow speed. The use of permanent magnet synchronous generators for this purpose, which have a number of useful properties, is quite a new line in the design of control systems. The work considers the features of the dynamics and control of the rotor rotation speed of vertical-axis wind turbines as a control object, which is stabilized by a simultaneous change in the configuration of the wind turbine rotor and the braking torque of the permanent magnet generator. The simultaneous use of the three stabilization channels contributes to a greater adaptation of the turbine rotor to changes in wind speed, thus significantly reducing the load on the power transmission systems and the requirements for excess power dissipation systems, such as emergency braking systems, and allowing one to reduce power consumption to counteract significant changes in wind speed. The use of the adaptation principle to speed up turbine braking in emergencies seems to be very useful. In this regard, a continuation of the authors' previous work aimed at generalizing and extending the approach to controlling the rotor speed of vertical-axis wind turbines by simultaneously changing the rotor configuration and the braking torque of the permanent magnet generator becomes an important task of significant practical interest. The goal of this article is to synthesize algorithms for stabilizing the speed of the Darier rotor of vertical-axis wind turbines controlled by a simultaneous change in the rotor configuration and the braking torque of the permanent magnet generator and analyze their effectiveness. The methods of solving the problem are methods of the classical theory of automatic control and mathematical simulation. The novelty of the obtained results lies in accounting for control actions produced by changes in the rotor configuration and the braking torque of the permanent magnet generator, determining the stability conditions of the stabilization system, and extending the authors’ method of redistributing the load on the stabilization channels to ensure their operability. The proposed and analyzed stabilization algorithms and the approach to operability assurance may be used in the design of advanced vertical-axis wind turbines of various capacities. REFERENCES 1. Longhuan Du, Ingram G., Dominy R. 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