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Frank Lemmer

Herr Dipl.-Ing.
Frank Lemmer geb. Sandner
Wissenschaftlicher Mitarbeiter

Dieses Bild zeigt  Frank Lemmer geb. Sandner
Telefon 0049 711 685-68332
Telefax0049 711 685-68293
Raum2.38
E-Mail
Adresse
Universität Stuttgart
Institut für Flugzegbau
Allmandring 5b
70569 Stuttgart
Deutschland
Sprechstunde

Nach Vereinbarung.


Fachgebiet:
  • PhD project: "Conceptioning, modeling and control of floating wind turbine systems."
  • Multibody system dynamics
  • Linear, frequency-domain models
  • Control engineering
  • Offshore engineering
  • Involvement in previous and ongoing research projects:
    • H2020-LIFES50+, Qualification of innovative floating substructures for 10MW wind turbines and water depths greater than 50m
    • FP-7 INNWIND.EU, Innovative wind conversion systems (10-20MW) for offshore applications
    • KIC-AFOSP, Alternative floating offshore support platforms for wind turbines
    • FP-7 FLOATGEN, Demonstration and benchmarking of a wind turbine in Atlantic Ocean
Publikationen:

Peer-reviewed conference proceedings

  • Lemmer, F., Müller, K., Yu, W., Schlipf, D. & Cheng, P.W. (2017). Optimization of floating offshore wind turbine platforms with a self-tuning controller. In Proceedings of the ASME 36th International Conference on Ocean, Offshore and Arctic Engineering. Trondheim/Norway. (to be published)
  • Yu, W., Lemmer, F., Bredmose, H., Borg, M., Pegalajar-Jurado, A., Mikkelsen, R.F., Larsen, T.S., Fjelstrup, T., Lomholt, A.K., Boehm, L., Schlipf, D., Azcona, J.A.  (2017). The TripleSpar campaign: Implementation and test of a blade pitch controller on a scaled floating wind turbine model. Energy Procedia. (to be published)
  • Lemmer, F., Schlipf, D., & Cheng, P. W. (2016). Control design methods for floating wind turbines for optimal disturbance rejection. Journal of Physics: Conference Series, 753. Retrieved from http://dx.doi.org/10.18419/opus-8906
  • Lemmer, F., Raach, S., Schlipf, D., & Cheng, P. W. (2016). Parametric Wave Excitation Model for Floating Wind Turbines. Energy Procedia. Retrieved from http://dx.doi.org/10.1016/j.egypro.2016.09.186
  • Koch, C., Lemmer, F., Borisade, F., Matha, D., & Cheng, P. W. (2016). Validation of INNWIND.EU Scaled Model Tests of a Semisubmersible Floating Wind Turbine. In Proceedings of the Twenty-sixth International Conference on Offshore and Polar Engineering (ISOPE). Retrieved from http://dx.doi.org/10.18419/opus-8967
  • Lemmer, F., Raach, S., Schlipf, D., & Cheng, P. W. (2015). Prospects of Linear Model Predictive Control on a 10MW Floating Wind Turbine. In Proceedings of the ASME 34th International Conference on Ocean, Offshore and Arctic Engineering. St. John’s/Canada. Retrieved from http://dx.doi.org/10.18419/opus-3959
  • Sandner, F., Schlipf, D., Matha, D., & Cheng, P. W. (2014). Integrated Optimization Of Floating Wind Turbine Systems. In Proceedings of the 33rd International Conference on Ocean, Offshore and Arctic Engineering OMAE. San Francisco. Retrieved from http://dx.doi.org/10.18419/opus-3937
  • Molins, C., Campos, A., Sandner, F., & Matha, D. (2014). Monolithic Concrete Off-Shore Floating Structure For Wind Turbines. In Proceedings of the EWEA.
  • Raach, S., Schlipf, D., Sandner, F., Matha, D., & Cheng, P. W. (2014). Nonlinear Model Predictive Control of Floating Wind Turbines with Individual Pitch Control. In Proceedings of the American Control Conference. Portland, Oregon, USA. Retrieved from http://dx.doi.org/10.18419/opus-3940
  • Schlipf, D., Sandner, F., Raach, S., Matha, D., & Cheng, P. W. (2013). Nonlinear Model Predictive Control of Floating Wind Turbines. In Proceedings of the Twenty-third International Conference on Offshore and Polar Engineering (ISOPE). Retrieved from http://dx.doi.org/10.18419/opus-3908
  • Schlipf, D., Simley, E., Lemmer, F., Pao, L., & Cheng, P. W. (2015). Collective Pitch Feedforward Control of Floating Wind Turbines Using Lidar. Journal of Ocean and Wind Energy, 2(4), 223–230. http://doi.org/10.17736/jowe.2015.arr04
  • Härer, A., Matha, D., Kucher, D., & Sandner, F. (2013). Optimization of offshore wind turbine components in multi-body simulations for cost and load reduction. In Proceedings of the EWEA Offshore. Frankfurt.
  • Matha, D., Sandner, F., & Schlipf, D. (2012). Efficient Critical Design Load Case Identification for Floating Offshore Wind Turbines with a Reduced Nonlinear Model. In The Science of Making Torque from Wind. Oldenburg.

Other conferences and meetings

  • Sandner, F., Yu, W., & Cheng, P. W. (2015). Parameterized Dynamic Modelling Approach for Conceptual Dimensioning of a Floating Wind Turbine System. In EERA Deepwind. Trondheim/NO.
  • Sandner, F., Amann, F., Azcona, J., Munduate, X., Bottasso, C. L., Campagnolo, F., Bredmose, H., Manjock, A., Pereira, R., Robertson, A. (2015). Model Building and Scaled Testing of 5MW and 10MW Semi-Submersible Floating Wind Turbines. In EERA Deepwind. Trondheim/NO. Retrieved from https://www.sintef.no/globalassets/project/eera-deepwind-2015/presentations/e/e2_sandner_univ-stuttgart.pdf
  • Manjock, A., Bredmose, H., Azcona, J., Lemmer, F., Amann, F., Campagnolo, F., & Montinari, P. (2015). Rotor Aerodynamics For Tank Tests Of Scaled Floating Wind Turbines. In Proceedings of the EWEA Offshore. Copenhagen. Retrieved from http://www.ewea.org/offshore2015/conference/allposters/PO088.pdf
  • Müller, K., Sandner, F., Bredmose, H., Azcona, J., Manjock, A., & Pereira, R. (2014). Improved Tank Test Procedures For Scaled Floating Offshore Wind Turbines. In International Wind Engineering Conference IWEC. Bremerhaven. Retrieved from http://dx.doi.org/10.18419/opus-8261
  • Sandner, F., & Cheng, P. W. (2013). Conceptual design of floating wind turbines. In Proceedings of the 9th PhD Seminar on Wind Energy in Europe. Visby, Gotland/Sweden. Retrieved from http://dx.doi.org/10.18419/opus-3921
  • Sandner, F., D. Schlipf, D. Matha, R. Seifried, P.W. Cheng: Reduced Nonlinear Model of a Spar-Mounted Floating Wind Turbine. Proceedings of the German Wind Energy Conference DEWEK. Bremen/Germany, 2012. Retrieved from http://dx.doi.org/10.18419/opus-4528

Journal publications

  • Matha, D., Sandner, F., Molins, C., Campos, A., & Cheng, P. W. (2015). Efficient Preliminary Floating Offshore Wind Turbine Design and Testing Methodologies and Application to a Concrete Spar Design. Trans. R. Soc. A, 373(20140347).

Technical reports

  • Lemmer, F., Amann, F., Raach, S., & Schlipf, D. (2016). Definition of the SWE-TripleSpar Floating Platform for the DTU 10MW Reference Wind Turbine. Retrieved from http://www.ifb.uni-stuttgart.de/windenergie/downloads
  • Lemmer, F., Müller, K., Yu, W., Faerron-Guzman, R., & Kretschmer, M. (2016). LIFES50+ D4.3: Optimization Framework and Methodology for Optimized Floater Design. Project report. Retrieved from http://lifes50plus.eu/wp-content/uploads/2015/11/GA_640741_LIFES50_D4.3-web.pdf 
  • Müller, K., Lemmer, F., Borisade, F., Kretschmer, M., Gruber, J., Hagemann, L., Nguyen, N., Vita, L. (2015). LIFES50+ D7.4 State-of-the-Art FOWT design practice and guidelines. Project report. Retrieved from http://lifes50plus.eu/wp-content/uploads/2015/11/GA_640741_LIFES50_D7.4.pdf
  • Lemmer, F., Müller, K., Pegalajar-Jurado, A., Borg, M., & Bredmose, H. (2016). LIFES50+ D4.1: Simple Numerical Models for Upscaled Design. Project report.
  • Azcona, J., Lemmer, F., Amann, F., Voutsinas, S., & Savenije, F. (2017). EU D4.37: Design Solutions for 10MW Floating Offshore Wind Turbines (to be published).
  • Sandner, F., Yu, W., Matha, D., Azcona, J., Munduate, X., Grela, E., Voutsinas, S., Natarajan, A. (2014). EU D4.33: Innovative Concepts for Floating Structures. Project report.
  • Heilskov, N. F., Azcona, J., Bredmose, H., Borisade, F., Kim, Y., Klein, L., Koch, C., Lemmer, F., Lutz, T., Manjock, A., Mauser, L., Manolas, D., Pegalajar-Jurado, A., Robertson, A., Jonkman, J., Wendt, F., Vittori, F., Voutsinas, S. (2016). EU D4.25: Results of Codes Validation with Wave Tank Tests. Project report.
  • Lemmer, F., Azcona, J., Matha, D., Amann, F., Campagnolo, F., Bredmose, H., & Montinari, P. (2014). EU D4.24: Floating Wind Model Tests Ecole Centrale de Nantes 2014. Project report.
  • Voutsinas, S., Manolas, D., Sandner, F., & Manjock, A. (2014). EU D4.23: Integrated design methods and controls for floating offshore wind turbines. Project report.
  • Azcona, J., Sandner, F., Bredmose, H., Manjock, A., Pereira, R., & Campagnolo, F. (2014). EU D4.22: Methods for performing scale-tests for method and model validation. Project report.
  • Azcona, J., Bekiropoulos, D., Bredmose, H., Fischer, A., Heilskov, N. F., Krieger, A., Lutz, T., Manjock, A.,Manolas, D.,Matha, D.,Meister, K.,Pereira, R.,Ronby, J.,Sandner, F., Voutsinas, S. (2012). EU D4.21: State-of-the-art and implementation of design tools for floating structures. Project report.
  • Sandner, F., & Matha, D. (2014). AFOSP D3.1: Model Description And Loads Analysis Results Of The Selected FOWT Design. Project report.
  • Molins, C., Matha, D., Sandner, F., Campos, A., Trubat, P., & Roca, P. (2013). AFOSP D2.2: Prototype Pre-Design. Project report.
  • Molins, C., Matha, D., Schlipf, D., Sandner, F., Campos, A., Trubat, P., Abón, Guillermo, Raach, S. (2013). AFOSP D2.1: Study of Alternatives. Project report.
  • Matha, D., Molins, C., Campos, A., Schlipf, D., Sandner, F., Abón, G., & Raach, S. (2012). AFOSP D1.1: State of the Art Report. Project report.

Supervised theses

  • Yu, W. (2016). Modeling, Control Design and Testing of a Scaled Floating Offshore Wind Turbine. Master thesis. University of Stuttgart.
  • Gabriel, D. (2016). Development of a Controller for Floating Offshore Wind Turbines. Bachelor thesis. University of Stuttgart.
  • Koch, C. (2016). Validierung eines gekoppelten Simulationsmodells schwimmender Windkraftanlagen mit Hilfe von Modellversuchen. Master thesis, University of Stuttgart.
  • Mayer, B. (2016). Validierung eines reduzierten gekoppelten Simulationsmodells schwimmender Windkraftanlagen mit Hilfe von Modellversuchen. Study project. University of Stuttgart.
  • Abdelwahab, M. (2016). Dynamic Modeling of a Floating Wind Turbine and Development of an Advanced Controller. Master thesis. University of Stuttgart.
  • Walia, D. (2015). Evaluation of Methods for the Computation of Structural Loads on Platforms for Floating Wind Turbines. Study project. TU Braunschweig.
  • Walia, D. (2015). Coupled Simulation of Strucutral Loads of Floating Wind Energy Converters. TU Braunschweig.
  • Amann, F. (2014). Skalierung, Auslegung und Konstruktion eines Modells einer schwimmenden Windkraftanlage. Diplomarbeit, University of Stuttgart.
  • Yu, Wei (2014). Auslegung einer innovativen schwimmenden Plattform für große Offshore Windkraftanlagen. Studienarbeit, University of Stuttgart.
  • Brecht, F. (2013). Gültigkeit und Vergleich verschiedener hydrodynamischer Modellierungsmethoden für schwimmende Windkraftanlagen. Bachelor thesis, University of Stuttgart.
  • Ramin, J. (2013). Vergleichende Untersuchung der hydrodynamischen Eigenschaften verschiedener Modelle schwimmender Windkraftanlagen. Bachelor thesis, University of Stuttgart.
  • Ullah, J. (2013). Vergleich zweier Plattformen schwimmender Windkraftanlagen in Hinblick auf das Betriebsverhalten und die Energieausbeute. Bachelor thesis. University of Stuttgart.
  • Abón Olivera, G. (2013). Structural dynamic behavior of a floating platform for offshore wind turbines. Bachelor thesis. University of Stuttgart/Universitat Politècnica de Catalunya.
  • Härer, Arne (2013). Optimierung von Plattformen  für Schwimmende WKA. Diplomarbeit. University of Stuttgart/MesH Engineering.
  • Raach, S. (2013). Model Predictive Control of a Floating Wind Turbine with Individual Pitch Control. University of Stuttgart.

Patents

  • Sandner, F., Matha, D., Molins, C., & Campos, A. (2014). Estructura flotante para soporte de turbinas eólicas marinas y procedimiento para su construcción e instalación. Patent no. 2 461 065. Spain: Oficina Española de Patentes y Marcas.

Teaching

Lectures

Others

  • Kutzbach, F. Beyer, F. Sandner, D.Schlipf, Windkraftanlagen lernen das Schwimmen - Inseln für Windräder in tiefem Wasser, ORF, May 2013 http://oe1.orf.at/programm/340377
  • Grotelüschen, F., Sandner, F., Bekiropoulos, D., Heege, A.: Schwimmende Windräder , WDR Leonardo, November 2012.
Lebenslauf:
  • 2006-2012: Dipl.-Ing. of Mechanical Engineering, University of Stuttgart, Germany.
    Specialisation in computational dynamics and control, fluid dynamics and hydraulic machinery.
  • 2010: Visiting scholar at University of Michigan, Ann Arbor/USA, German-American Fulbright Commission.
  • 2010: Internship Alstom Power AG, Gas Turbine Mechanical Integration.
  • 2011: Internship GIZ - Gesellschaft für Internationale Zusammenarbeit gGmbH, Benin/West Africa.
  • 2012: Diploma thesis "Reduced Model Design of a Floating Wind Turbine" at SWE.
  • since 10/2012: Researcher and PhD candidate at SWE.