Conference paper
Controller Design for Blade Load Reduction Using Synthetic Jets
As the size of modern wind turbines increase, the blades become longer and more flexible. Consequently, fatigue loads due to the structural vibration become more important and turn to be a constraint on enlarging the size of the new turbines. Thus, it becomes more necessary to use nontraditional actuators to damp structural vibration.
This paper, presents the design of a control system that acts on blade synthetic jets to reduce and damp the vibration of the desired blade modes. The design of model-based estimators is addressed. These estimators use the measurements of several accelerometers and strain gauges along the blade and the tower to estimate the contribution of each blade modal state to the vibration of the tower and the blades.
The synthetic jet actuators are then controlled, such that the desired vibration modes are damped effectively. Designed estimator and controller are implemented on a FEM-based wind turbine simulation code. The results show significant damping of blade vibration.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2014 |
| Pages: | 4440-4445 |
| Proceedings: | 2014 American Control Conference |
| ISBN: | 147993271X , 1479932728 , 1479932744 , 1479932752 , 9781479932719 , 9781479932726 , 9781479932740 and 9781479932757 |
| ISSN: | 23785861 and 07431619 |
| Types: | Conference paper |
| DOI: | 10.1109/ACC.2014.6858978 |
Accelerometers Blades Control applications FEM Flexible structures Force Poles and towers Power systems Strain Vibrations Wind turbines accelerometers actuators blade load reduction blade modal state blade modes blades controller design damping fatigue loads finite element analysis jets model-based estimators nontraditional actuators strain gauges structural vibration synthetic jet actuators tower wind turbine simulation code wind turbines
