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Chirca, Mihai; Dranca, Marius; Oprea, Claudiu Alexandru; Teodosescu, Petre-Dorel; Pacuraru, Alexandru Madalin; Neamtu, Calin; Breban, Stefan
Energies, 08/2020, Letnik: 13, Številka: 16Journal Article
This paper presents two electromechanical systems used for the overspeed protection of small wind turbines. The actuators have the purpose of rotating the back rudder (tail vane) of the wind turbine when the blades are overspeeding. The rudder rotation angle is 90 degrees in order to completely turn the wind turbine blades away from the wind flow direction. The first device is a new limited-angle torque electromechanical actuator consisting of a device with a simplified structure composed of four permanent magnets (two on each side) glued on a rotor mounted between two stator poles built from ordinary rectangular construction pipes and an electronic control unit. The second device is based on a regular stepper motor actuator with a reduction gear and an appropriate control scheme to maximize the energy harvested at high, over-nominal wind speeds. A generic comparison is provided for the proposed solutions.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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