Details
| Original language | English |
|---|---|
| Pages (from-to) | 97-105 |
| Number of pages | 9 |
| Journal | Wind Energy Science |
| Volume | 3 |
| Issue number | 1 |
| Publication status | Published - 14 Mar 2018 |
Abstract
Pitch bearings of wind turbines are large, grease-lubricated rolling bearings that connect the rotor blades with the rotor hub. They are used to turn the rotor blades to control the power output and/or structural loads of the turbine. Common actuators turning the blades are hydraulic cylinders or electrical motor-gearbox combinations. In order to design pitch actuator systems that are able to turn the blades reliably without imposing an excessive power demand, it is necessary to predict the friction torque of pitch bearings for different operating conditions. In this paper, the results of torque measurements under load are presented and compared to results obtained using different calculation models. The results of this comparison indicate the various sources of friction that should be taken into account for a reliable calculation model.
ASJC Scopus subject areas
- Energy(all)
- Energy Engineering and Power Technology
- Energy(all)
- Renewable Energy, Sustainability and the Environment
Sustainable Development Goals
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In: Wind Energy Science, Vol. 3, No. 1, 14.03.2018, p. 97-105.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Friction torque of wind-turbine pitch bearings – comparison of experimental results with available models
AU - Stammler, Matthias
AU - Schwack, Fabian
AU - Bader, Norbert
AU - Reuter, Andreas
AU - Poll, Gerhard
PY - 2018/3/14
Y1 - 2018/3/14
N2 - Pitch bearings of wind turbines are large, grease-lubricated rolling bearings that connect the rotor blades with the rotor hub. They are used to turn the rotor blades to control the power output and/or structural loads of the turbine. Common actuators turning the blades are hydraulic cylinders or electrical motor-gearbox combinations. In order to design pitch actuator systems that are able to turn the blades reliably without imposing an excessive power demand, it is necessary to predict the friction torque of pitch bearings for different operating conditions. In this paper, the results of torque measurements under load are presented and compared to results obtained using different calculation models. The results of this comparison indicate the various sources of friction that should be taken into account for a reliable calculation model.
AB - Pitch bearings of wind turbines are large, grease-lubricated rolling bearings that connect the rotor blades with the rotor hub. They are used to turn the rotor blades to control the power output and/or structural loads of the turbine. Common actuators turning the blades are hydraulic cylinders or electrical motor-gearbox combinations. In order to design pitch actuator systems that are able to turn the blades reliably without imposing an excessive power demand, it is necessary to predict the friction torque of pitch bearings for different operating conditions. In this paper, the results of torque measurements under load are presented and compared to results obtained using different calculation models. The results of this comparison indicate the various sources of friction that should be taken into account for a reliable calculation model.
UR - http://www.scopus.com/inward/record.url?scp=85049659468&partnerID=8YFLogxK
U2 - 10.5194/wes-3-97-2018
DO - 10.5194/wes-3-97-2018
M3 - Article
AN - SCOPUS:85049659468
VL - 3
SP - 97
EP - 105
JO - Wind Energy Science
JF - Wind Energy Science
SN - 2366-7443
IS - 1
ER -