Efficiency improvement of a new vertical axis wind turbine by individual active control of blade motion

In Seong Hwang; Seung Yong Min; In Oh Jeong; Yun Han Lee; Seung Jo Kim

doi:10.1117/12.658935

5 April 2006 Efficiency improvement of a new vertical axis wind turbine by individual active control of blade motion

In Seong Hwang, Seung Yong Min, In Oh Jeong, Yun Han Lee, Seung Jo Kim

Proceedings Volume 6173, Smart Structures and Materials 2006: Smart Structures and Integrated Systems; 617311 (2006) https://doi.org/10.1117/12.658935
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2006, San Diego, California, United States

Abstract

In this paper, a research for the performance improvement of the straight-bladed vertical axis wind turbine is described. To improve the performance of the power generation system, which consists of several blades rotating about axis in parallel direction, the cycloidal blade system and the individual active blade control system are adopted, respectively. Both methods are variable pitch system. For cycloidal wind turbine, aerodynamic analysis is carried out by changing pitch angle and phase angle based on the cycloidal motion according to the change of wind speed and wind direction, and control mechanism using the cycloidal blade system is realized for 1kw class wind turbine. By this method, electrical power is generated about 30% higher than wind turbine using fixed pitch angle method. And for more efficient wind turbine, individual pitch angle control of each blade is studied. By maximizing the tangential force in each rotating blade at the specific rotating position, optimal pitch angle variation is obtained. And several airfoil shapes of NACA 4-digit and NACA 6-series are studied. Aerodynamic analysis shows performance improvement of 60%. To realize this motion, sensing and actuating system is designed.

Citation Download Citation

In Seong Hwang, Seung Yong Min, In Oh Jeong, Yun Han Lee, and Seung Jo Kim "Efficiency improvement of a new vertical axis wind turbine by individual active control of blade motion", Proc. SPIE 6173, Smart Structures and Materials 2006: Smart Structures and Integrated Systems, 617311 (5 April 2006); https://doi.org/10.1117/12.658935

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available