Output stabilized control for small-scaled wind-turbine by using autonomous over-rotation mechanizm

2016 Fiscal Year Final Research Report

• Project/Area Number: 25420924
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Energy engineering
• Research Institution: University of the Ryukyus
• Principal Investigator: TAMAKI Shiro 琉球大学, 工学部, 教授 (80163666)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 小型風力発電システム / 自律的失速制御 / ピッチ角失速制御 / 非接触型電磁ブレーキ / 回生エネルギーシステム / 適応制御 / 過回転抑制制御

Outline of Final Research Achievements

The application of the small-scaled wind power generation system is very wide. However, its diffusion has not progressed. The reason for this is caused by frequent breakage accidents caused by excessive rotation of blades caused by strong winds. In other words, driving a small-scaled wind power generation system in a strong wind induces over-speed and causes a phenomenon that the blade is destroyed. In this research, in order to prevent over-rotation of the small wind turbine, we developed an adaptive stall mechanism that brakes non-contactly the rotation of the wind turbine rotation shaft by electromagnetic force using the generator output current, and passive Pitch pitch angle stall control method. We evaluated both control systems and developed an output stabilization system that suppresses the output fluctuation of the wind power generation system as much as possible.

Free Research Field

再生エネルギーシステム