TEAMER: Additional Degree of Freedom for WEC Model

Awaiting release License 

'Additional Degree of Freedom for WEC' - WEC-Sim numerical model from RFTS 1 (request for technical support) TEAMER project. An increase in wave energy converter (WEC) efficiency requires not only consideration of the nonlinear effects in the WEC dynamics and the power take-off (PTO) mechanisms, but also more integrated treatment of the whole system, i.e., the buoy dynamics, the PTO system, and the control strategy. It results in an optimization formulation that has a nonquadratic and nonstandard cost functional. This model presents the application of real-time nonlinear model predictive controller (NMPC) to two degrees of freedom point absorber type WEC with highly nonlinear PTO characteristics. The nonlinear effects, such as the fluid viscous drag, are also included in the plant dynamics. The controller may be implemented on a real-time target machine, and the WEC device is emulated in real-time using the WECSIM toolbox.

Please see the "ReadMe" within the root directory for an explanation of how to set-up and run the model. An article covering the development of this model is attached as "Real-Time Nonlinear Model Predictive Controller for Multiple Degrees of Freedom Wave Energy Converters with Non-Ideal Power Take-Off"

Citation Formats

TY - DATA AB - 'Additional Degree of Freedom for WEC' - WEC-Sim numerical model from RFTS 1 (request for technical support) TEAMER project. An increase in wave energy converter (WEC) efficiency requires not only consideration of the nonlinear effects in the WEC dynamics and the power take-off (PTO) mechanisms, but also more integrated treatment of the whole system, i.e., the buoy dynamics, the PTO system, and the control strategy. It results in an optimization formulation that has a nonquadratic and nonstandard cost functional. This model presents the application of real-time nonlinear model predictive controller (NMPC) to two degrees of freedom point absorber type WEC with highly nonlinear PTO characteristics. The nonlinear effects, such as the fluid viscous drag, are also included in the plant dynamics. The controller may be implemented on a real-time target machine, and the WEC device is emulated in real-time using the WECSIM toolbox. Please see the "ReadMe" within the root directory for an explanation of how to set-up and run the model. An article covering the development of this model is attached as "Real-Time Nonlinear Model Predictive Controller for Multiple Degrees of Freedom Wave Energy Converters with Non-Ideal Power Take-Off" AU - McCall, Alan A2 - Haider, Ali A3 - Brekken, Ted DB - Marine and Hydrokinetic Data Repository DP - Open EI | National Renewable Energy Laboratory DO - 10.15473/1870846 KW - marine KW - energy KW - TEAMER KW - wave energy KW - WEC KW - numerical KW - model KW - MATLAB KW - PTO KW - power take off KW - wave energy converter KW - degrees of freedom KW - simulation KW - model data KW - simulation data KW - WECSim KW - dynamics KW - fluid dynamics KW - RFTS 1 KW - WEC-Sim LA - English DA - 2022/05/26 PY - 2022 PB - Dehlsen Associates, LLC T1 - TEAMER: Additional Degree of Freedom for WEC Model UR - https://doi.org/10.15473/1870846 ER -
Export Citation to RIS
McCall, Alan, et al. TEAMER: Additional Degree of Freedom for WEC Model. Dehlsen Associates, LLC, 26 May, 2022, Marine and Hydrokinetic Data Repository. https://doi.org/10.15473/1870846.
McCall, A., Haider, A., & Brekken, T. (2022). TEAMER: Additional Degree of Freedom for WEC Model. [Data set]. Marine and Hydrokinetic Data Repository. Dehlsen Associates, LLC. https://doi.org/10.15473/1870846
McCall, Alan, Ali Haider, and Ted Brekken. TEAMER: Additional Degree of Freedom for WEC Model. Dehlsen Associates, LLC, May, 26, 2022. Distributed by Marine and Hydrokinetic Data Repository. https://doi.org/10.15473/1870846
@misc{MHKDR_Dataset_422, title = {TEAMER: Additional Degree of Freedom for WEC Model}, author = {McCall, Alan and Haider, Ali and Brekken, Ted}, abstractNote = {'Additional Degree of Freedom for WEC' - WEC-Sim numerical model from RFTS 1 (request for technical support) TEAMER project. An increase in wave energy converter (WEC) efficiency requires not only consideration of the nonlinear effects in the WEC dynamics and the power take-off (PTO) mechanisms, but also more integrated treatment of the whole system, i.e., the buoy dynamics, the PTO system, and the control strategy. It results in an optimization formulation that has a nonquadratic and nonstandard cost functional. This model presents the application of real-time nonlinear model predictive controller (NMPC) to two degrees of freedom point absorber type WEC with highly nonlinear PTO characteristics. The nonlinear effects, such as the fluid viscous drag, are also included in the plant dynamics. The controller may be implemented on a real-time target machine, and the WEC device is emulated in real-time using the WECSIM toolbox.

Please see the "ReadMe" within the root directory for an explanation of how to set-up and run the model. An article covering the development of this model is attached as "Real-Time Nonlinear Model Predictive Controller for Multiple Degrees of Freedom Wave Energy Converters with Non-Ideal Power Take-Off"}, url = {https://mhkdr.openei.org/submissions/422}, year = {2022}, howpublished = {Marine and Hydrokinetic Data Repository, Dehlsen Associates, LLC, https://doi.org/10.15473/1870846}, note = {Accessed: 2025-04-25}, doi = {10.15473/1870846} }
https://dx.doi.org/10.15473/1870846

Details

Data from May 26, 2022

Last updated Oct 19, 2024

Submitted May 27, 2022

Organization

Dehlsen Associates, LLC

Contact

Alan McCall

805.845.7575

Authors

Alan McCall

Dehlsen Associates LLC

Ali Haider

Oregon State University

Ted Brekken

Oregon State University

DOE Project Details

Project Name Testing Expertise and Access for Marine Energy Research

Project Lead Lauren Ruedy

Project Number EE0008895

Share

Submission Downloads