Marine Hydrokinetic Turbine Optimization through Control Co-Design

By Austin Snyder
Slide 1: Marine Hydrokinetic Turbine Optimization through Control Co-Design title slide with presenter and advisor information

Slide-1

Presenter: Austin Snyder

Advisors: Dr. Yufei Tang, Arezoo Hasankhani

Slide 2: Marine Hydrokinetic Turbines overview showing advantages, challenges, and KAIRYU Ocean Current Turbine System image

Slide-2

Marine Hydrokinetic Turbines

Advantages

  • Renewable
  • "Clean"
  • Consistent

Challenges

  • Cost of Components
  • Complex Environment

Image of "KAIRYU" Ocean Current Turbine System

Slide 3: Control Co-Design comparison diagram showing Traditional Design vs Nested Control Co-Design vs Simultaneous Design optimization approaches

Slide-3

Control Co-Design

Three optimization approaches are shown in flowchart format:

Traditional Design

Sequential process: Optimize xp, then Optimize xc

Nested Control Co-Design

Nested process: Optimize xc, then Optimize xp

Simultaneous Design

Concurrent process: Optimize xp and xc simultaneously

Designs inspired by Daniel R. Herber

Slide 4: Optimization Problem Setup showing design schematic and control co-design schematic for Buoyancy-Controlled OCT

Slide-4

Optimization Problem Setup

Objective: minimize cost-to-power ratio

Control Co-Design Schematic for Buoyancy-Controlled OCT

System control diagram illustrating the control co-design approach for the buoyancy-controlled ocean current turbine.

Design Schematic for Buoyancy-Controlled OCT

Technical diagram showing the ocean current turbine design with buoyancy control system.

Slide 5: Preliminary Results showing initial design parameters and scope with output graph

Slide-5

Preliminary Results

Initial Design

  • Prated = 700 kW
  • Ppump = 18.8 kW
  • drotor = 20.0 m
  • Vbuoy = 31.25 m3

Scope

  • Time Horizon: 1 week
  • Prediction Horizon: 3 hours

Output

Graph showing optimization results and performance metrics over time.

Slide 6: Conclusions and Next Steps showing future plans and ongoing work with ACC 2022 logo

Slide-6

Conclusions & Next Steps

Future Plans

  • ACC Paper Submission
  • Generalized Application

Ongoing Work

  • Reduce Time Complexity
  • Linear Model Approximations
  • Standardize Cost & Weight

Image: ACC 2022 Logo

Slide 7: References page listing 5 academic and web sources

Slide-7

References

[1] Catalina, J. (n.d.). Blue Ocean. Slides Carnival; Piensa en Pixels. https://www.slidescarnival.com/thaisa-free-presentation-template/10437

[2] Dodo, Y., et al. (2019). Development and Design of a Floating Type Ocean Current Turbine System. Practical Design of Ships and Other Floating Structures, 732–755. https://doi.org/https://doi.org/10.1007/978-981-15-4680-8_49

[3] Herber, D. R. Control Co-design Direct Transcription Solution Strategies: Overview and Challenges [PowerPoint slides]. Department of Systems Engineering, Colorado State University. https://www.engr.colostate.edu/~drherber/files/IDADS-Herber.pdf

[4] Hasankani, A., et al. (Unpublished). Modeling and Numerical Simulation of a Buoyancy Controlled Ocean Current Turbine

[5] American Control Conference (2022). [American Control Conference 2022 Logo]. Retrieved from https://acc2022.a2c2.org/

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Additional Information
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