Proposal for a lower limit control of a generator’s torque based on the nacelle wind speed and demonstration results using a full-scale spar-type floating offshore wind turbine

Hiromu Kakuya, Shigeo Yoshida, Iku Sato, Tomoaki Utsunomiya

研究成果: ジャーナルへの寄稿記事

抄録

Among the issues of floating offshore wind turbines are the platform-pitching vibrations generated by blade pitch angle motions of the variable speed control. Control of blade pitch angle based on the platform-pitching motion (floating platform vibration control) can suppress these vibrations. This study investigates the impact of floating platform vibration control on variable speed control and the generator torque control, which control interferences cause the fluctuation of generator speed and platform-pitching angle at the transition region between below and above rated operating conditions. This study also proposes a new control to reduce the impact; in this method, the lower limit of generator torque is adjusted linearly depending on the nacelle wind speed, and the conventional feedback control for the generator torque mainly adjusts the generator torque. Simulation and demonstration results using a full-scale spar-type FOWT showed that the proposed method can stabalize suppress the fluctuations of generator speed, platform-pitching angle, and power at the transition region.

元の言語英語
ジャーナルWind Engineering
DOI
出版物ステータス受理済み/印刷中 - 1 1 2019

Fingerprint

Offshore wind turbines
Demonstrations
Torque
Vibration control
Speed control
Torque control
Vibrations (mechanical)
Feedback control

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology

これを引用

@article{0b483afb529442cba86df1162bcd4133,
title = "Proposal for a lower limit control of a generator’s torque based on the nacelle wind speed and demonstration results using a full-scale spar-type floating offshore wind turbine",
abstract = "Among the issues of floating offshore wind turbines are the platform-pitching vibrations generated by blade pitch angle motions of the variable speed control. Control of blade pitch angle based on the platform-pitching motion (floating platform vibration control) can suppress these vibrations. This study investigates the impact of floating platform vibration control on variable speed control and the generator torque control, which control interferences cause the fluctuation of generator speed and platform-pitching angle at the transition region between below and above rated operating conditions. This study also proposes a new control to reduce the impact; in this method, the lower limit of generator torque is adjusted linearly depending on the nacelle wind speed, and the conventional feedback control for the generator torque mainly adjusts the generator torque. Simulation and demonstration results using a full-scale spar-type FOWT showed that the proposed method can stabalize suppress the fluctuations of generator speed, platform-pitching angle, and power at the transition region.",
author = "Hiromu Kakuya and Shigeo Yoshida and Iku Sato and Tomoaki Utsunomiya",
year = "2019",
month = "1",
day = "1",
doi = "10.1177/0309524X19862754",
language = "English",
journal = "Wind Engineering",
issn = "0309-524X",
publisher = "Multi-Science Publishing Co. Ltd",

}

TY - JOUR

T1 - Proposal for a lower limit control of a generator’s torque based on the nacelle wind speed and demonstration results using a full-scale spar-type floating offshore wind turbine

AU - Kakuya, Hiromu

AU - Yoshida, Shigeo

AU - Sato, Iku

AU - Utsunomiya, Tomoaki

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Among the issues of floating offshore wind turbines are the platform-pitching vibrations generated by blade pitch angle motions of the variable speed control. Control of blade pitch angle based on the platform-pitching motion (floating platform vibration control) can suppress these vibrations. This study investigates the impact of floating platform vibration control on variable speed control and the generator torque control, which control interferences cause the fluctuation of generator speed and platform-pitching angle at the transition region between below and above rated operating conditions. This study also proposes a new control to reduce the impact; in this method, the lower limit of generator torque is adjusted linearly depending on the nacelle wind speed, and the conventional feedback control for the generator torque mainly adjusts the generator torque. Simulation and demonstration results using a full-scale spar-type FOWT showed that the proposed method can stabalize suppress the fluctuations of generator speed, platform-pitching angle, and power at the transition region.

AB - Among the issues of floating offshore wind turbines are the platform-pitching vibrations generated by blade pitch angle motions of the variable speed control. Control of blade pitch angle based on the platform-pitching motion (floating platform vibration control) can suppress these vibrations. This study investigates the impact of floating platform vibration control on variable speed control and the generator torque control, which control interferences cause the fluctuation of generator speed and platform-pitching angle at the transition region between below and above rated operating conditions. This study also proposes a new control to reduce the impact; in this method, the lower limit of generator torque is adjusted linearly depending on the nacelle wind speed, and the conventional feedback control for the generator torque mainly adjusts the generator torque. Simulation and demonstration results using a full-scale spar-type FOWT showed that the proposed method can stabalize suppress the fluctuations of generator speed, platform-pitching angle, and power at the transition region.

UR - http://www.scopus.com/inward/record.url?scp=85070375069&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85070375069&partnerID=8YFLogxK

U2 - 10.1177/0309524X19862754

DO - 10.1177/0309524X19862754

M3 - Article

AN - SCOPUS:85070375069

JO - Wind Engineering

JF - Wind Engineering

SN - 0309-524X

ER -