Title :
A high voltage DC-DC converter driving a Dielectric Electro Active Polymer actuator for wind turbine flaps
Author :
Thummala, Prasanth ; Zhang, Zhe ; Andersen, Michael A E ; Thomsen, Ole C.
Author_Institution :
Dept. of Electr. Eng., Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
The Dielectric Electro Active Polymer (DEAP) material is a very thin (~80 μm) silicone elastomer film with a compliant metallic electrode layer on both sides. The DEAP is fundamentally a capacitor that is capable of very high strain. The property that the polymer changes its shape, as a result of the electrostatic forces generated by an applied voltage, can be used in actuators, for instance to adapt the trailing edges of wind turbine blades, for maximum efficiency and increased energy output. Conventional actuator technologies have not proven feasible solutions for driving the wind turbine flaps. With the DEAP based high power actuator, it is expected to make a reliable and light solution with superior controllability. The current DEAP technology requires high DC voltage in the range of kV to fully utilize the DEAP material as an actuator. In this paper we propose a flyback converter topology to obtain high voltage at low current, for driving the DEAP actuator. Simulation and experimental results for uni-directional flyback converter topology are shown.
Keywords :
DC-DC power convertors; blades; elastomers; electroactive polymer actuators; electrodes; wind turbines; DEAP based high power actuator; DEAP material; compliant metallic electrode layer; dielectric electroactive polymer actuator technology; electrostatic forces; high DC voltage; high voltage DC-DC converter; silicone elastomer film; unidirectional flyback converter topology; wind turbine blades; wind turbine flaps; Actuators; Blades; Films; MOSFET circuits; Voltage control; Wind turbines; Dielectric Electro Active Polymer (DEAP); PolyPower; actuator; capacitive load; flaps; flyback; high voltage; wind turbine;
Conference_Titel :
Universities Power Engineering Conference (UPEC), 2012 47th International
Conference_Location :
London
Print_ISBN :
978-1-4673-2854-8
Electronic_ISBN :
978-1-4673-2855-5
DOI :
10.1109/UPEC.2012.6398600