Abstract
This paper examines the elastomechanical stability of a four-bladed wind turbine over a specific rotor speed range. Stability modes, frequencies, and dampings are extracted using a specialized modal processor developed at NREL that post-processes the response data generated by the ADAMS’ simulation code. The processor can analyze a turbine with an arbitrary number of rotor blades and offers a novel capability of isolating stability modes that become locked at a single frequency. Results indicate that over a certain rotor speed range, the tower lateral mode and the rotor regressive in-plane mode coalesce, resulting in a self-excited instability. Additional results show the effect of tower and nacelle parameters on the stability boundaries.
| Original language | American English |
|---|---|
| Pages | 289-300 |
| Number of pages | 12 |
| State | Published - 1997 |
| Event | 35th Aerospace Sciences Meeting and Exhibit, 1997 - Reno, United States Duration: 6 Jan 1997 → 9 Jan 1997 |
Conference
| Conference | 35th Aerospace Sciences Meeting and Exhibit, 1997 |
|---|---|
| Country/Territory | United States |
| City | Reno |
| Period | 6/01/97 → 9/01/97 |
Bibliographical note
Publisher Copyright:© 1997 by the American Institute of Aeronautics and Astronautics. All rights reserved.
NREL Publication Number
- NREL/CP-23289