Projects per year
Abstract
The fluid power accumulator is a high-risk component in the safety shutdown system of most modern wind turbines. Recent studies of failures in wind turbines have shown a high failure rate of such accumulators. This paper proposes an estimation method for detecting one of the most common faults for accumulators, namely gas leakage. The method utilizes an Extended Kalman Filter for joint state and parameter estimation with special attention to limiting the use of sensors to those commonly used in wind turbines. The precision of the method is investigated on an experimental setup which allows for operation of the accumulator similar to the conditions in a turbine. The results show that gas leakage is indeed detectable during start-up of the turbine and robust behavior is achieved in a multi-fault environment where both gas and external fluid leakage occur simultaneously. The estimation precision is shown to be sensitive to initial conditions for the gas temperature and volume.
Original language | Danish |
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Title of host publication | Proceedings of ASME/BATH 2017 Symposium on Fluid Power and Motion Control |
Number of pages | 10 |
Publisher | American Society of Mechanical Engineers |
Publication date | Oct 2017 |
Article number | FPMC2017-4253 |
ISBN (Electronic) | 978-0-7918-5833-2 |
DOIs | |
Publication status | Published - Oct 2017 |
Event | ASME/BATH 2017 Symposium on Fluid Power & Motion Control - Lido Beach Resport, Sarasota, United States Duration: 16 Oct 2017 → 19 Oct 2017 http://www.asmeconferences.org/FPMC2017/ |
Conference
Conference | ASME/BATH 2017 Symposium on Fluid Power & Motion Control |
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Location | Lido Beach Resport |
Country/Territory | United States |
City | Sarasota |
Period | 16/10/2017 → 19/10/2017 |
Internet address |
Projects
- 1 Finished
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Hydratech: Future Hydraulic Pitch Systems
Pedersen, H. C., Liniger, J. & Guldbæk, B. K.
01/01/2014 → 30/06/2017
Project: Research
Research output
- 3 Citations
- 1 Article in proceeding
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Estimation of prepressure in hydraulic piston accumulators for industrial wind turbines using multi-model adaptive estimation
Sørensen, F. F., von Benzon, M. S. R., Klemmensen, S. S., Schmidt, K. & Liniger, J., Dec 2019, Proceedings of the ASME/BATH 2019 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 11 p. FPMC2019-1665Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review
2 Citations (Scopus)