Investigation of a Rotor Speed Controlling of a Promising Wind-Driven Power Plant Using Several Variable Elements of its Geometry
https://doi.org/10.17587/mau.21.599-608
Abstract
Variants of the rotation frequency stabilization of a promising vertically axial wind-driven power plant consisting of a doubly connected stator and a rotor with blades are considered. The stator as a whole is part of the construction, axisymmetric with the rotor, and the rotor is slightly buried in the upper part of the stator — the bell. This plant can be included as an element in a complex power plant for additional and emergency power supply of both stationary and mobile objects, for example, surface robotic systems. The paper proposes to use an aerodynamic method of the rotor angular speed stabilization by controlling the positions of two variable design elements of the plant with respect to its stator. As such elements, a lower guide structure (one of the stator elements) and an aerodynamic brake flap can be used. The rearrangement of both elements positions relative to the stator changes the effective cross section for the interaction of the wind flow entering the installation with the rotor. The method of controller synthesis by the angular speed of the rotor rotation is considered in detail. A feature of this controller is the presence of two control channels with one state variable. First, it is necessary to determine the dynamic ranges of torque control on the rotor shaft for each of the variable geometry elements. This allows to correctly select the switching condition between the two control channels depending on the degree of deviation of the desired flow rate from the current speed. Based on the second-order control error equation, the desired control law of the angular rotor speed is obtained. Using the example of the problem solving of angular speed stabilization with given quality criteria, we simulated a synthesized control system for various initial data. It is shown that the constructed controller is capable of effectively countering the influence of wind disturbances in a wide range of deviations of the current speed from the frequency desired for a given target value.
Keywords
About the Authors
V. A. KostyukovRussian Federation
Candidate of Engineering Sciences
Taganrog
M. Yu. Medvedev
Russian Federation
Medvedev Mikhail Yu., Doctor of Engineering Sciences
Taganrog
D. D. Pavlenko
Russian Federation
Сandidate for a Master’s Degree
Taganrog
A. M. Mayevsky
Russian Federation
Postgraduate Student
Taganrog
N. K. Poluyanovich
Russian Federation
Candidate of Engineering Sciences
Taganrog
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Review
For citations:
Kostyukov V.A., Medvedev M.Yu., Pavlenko D.D., Mayevsky A.M., Poluyanovich N.K. Investigation of a Rotor Speed Controlling of a Promising Wind-Driven Power Plant Using Several Variable Elements of its Geometry. Mekhatronika, Avtomatizatsiya, Upravlenie. 2020;21(10):599-608. https://doi.org/10.17587/mau.21.599-608