Effectiveness enhancement of a cycloidal wind turbine by individual active control of blade motion

In Seong Hwang; Yun Han Lee; Seung Jo Kim

doi:10.1117/12.715623

27 April 2007 Effectiveness enhancement of a cycloidal wind turbine by individual active control of blade motion

In Seong Hwang, Yun Han Lee, Seung Jo Kim

Proceedings Volume 6525, Active and Passive Smart Structures and Integrated Systems 2007; 65251F (2007) https://doi.org/10.1117/12.715623
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

In this paper, a research for the effectiveness enhancement of a Cycloidal Wind Turbine by individual active control of blade motion is described. To improve the performance of the power generation system, which consists of several straight blades rotating about axis in parallel direction, the cycloidal blade system and the individual active blade control method are adopted. It has advantages comparing with horizontal axis wind turbine or conventional vertical axis wind turbine because it maintains optimal blade pitch angles according to wind speed, wind direction and rotor rotating speed to produce high electric power at any conditions. It can do self-starting and shows good efficiency at low wind speed and complex wind condition. Optimal blade pitch angle paths are obtained through CFD analysis according to rotor rotating speed and wind speed. The individual rotor blade control system consists of sensors, actuators and microcontroller. To realize the actuating device, servo motors are installed to each rotor blade. Actuating speed and actuating force are calculated to compare with the capacities of servo motor, and some delays of blade pitch angles are corrected experimentally. Performance experiment is carried out by the wind blowing equipment and Labview system, and the rotor rotates from 50 to 100 rpm according to the electric load. From this research, it is concluded that developing new vertical axis wind turbine, Cycloidal Wind Turbine which is adopting individual active blade pitch control method can be a good model for small wind turbine in urban environment.

Citation Download Citation

In Seong Hwang, Yun Han Lee, and Seung Jo Kim "Effectiveness enhancement of a cycloidal wind turbine by individual active control of blade motion", Proc. SPIE 6525, Active and Passive Smart Structures and Integrated Systems 2007, 65251F (27 April 2007); https://doi.org/10.1117/12.715623

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