News

Prof. Yong Hoon Lee and his collaborators published article in the ASME Journal of Mechanical Design

Prof. Yong Hoon Lee and his collaborators published an article titled “Open-loop control co-design of semisubmersible floating offshore wind turbines using linear parameter-varying models” in the ASME Journal of Mechanical Design. Athul K. Sundarrajan, Yong Hoon Lee, James T. Allison, Daniel S. Zalkind, Daniel R. Herber, “Open-loop control co-design of semisubmersible floating offshore wind turbines using linear parameter-varying models”, Journal of Mechanical Design, 146(4), April 2024, pp. 041704. [bibtex] [pdf] [doi]  [google] Abstract This paper discusses a framework to design elements of the plant and …

Read More

Austin Griffin Successfully Defended His Master’s Thesis

Austin Griffin successfully defended his Master’s thesis. Congratulations to Austin for your graduation! Thesis Title Experimentally Supported Reduced Order Modeling for Hydrokinetic Energy System Design Abstract This research advances the field of hydrokinetic energy by introducing a novel control design approach, termed duct contraction control strategy (DCCS), that dynamically optimizes the power output of ducted horizontal axis hydrokinetic turbines (HAHkT). Focusing on the adjustment of duct contraction ratios (CR) and blade pitch in response to varying flow conditions, this strategy …

Read More

Prof. Yong Hoon Lee attended ARPA-E OCEAN WEEK 2024 Event

Prof. Yong Hoon Lee attended OCEAN WEEK 2024 event annually hosted by the U. S. Department of Energy (DOE) Advanced Research Programs Agency-Energy (ARPA-E). At the event, Prof. Lee and other experts from various research institutes, industry, and professional communities convened to reflect outcomes and collaborations of the ocean-related research projects sponsored by the ARPA-E. Prof. Yong Hoon Lee is actively conducting research on the floating offshore wind turbine (FOWT) systems to unlock the clean energy potential of the ocean …

Read More

Nowsheen Sharmili presented “Battery thermal management systems design considering model fidelity levels and design optimization utility” at the AIAA SciTech Forum 2024

Nowsheen Sharmili presented “Battery thermal management systems design considering model fidelity levels and design optimization utility” at the AIAA SciTech Forum 2024. [BibTeX] Abstract The electrification of transportation requires a robust and efficient design of battery thermal management systems (BTMSs). This study introduces a resistance-capacitance (RC) based reduced order model (ROM) with additional auxiliary state variables for accurately capturing transient thermal behavior. The study explores the trade-offs between model fidelity and utility in BTMS control co-design (CCD) applications. BTMSs manage …

Read More

Chandler Cain Successfully Defended His Master’s Thesis

Chandler Cain successfully defended his Master’s thesis. Congratulations to Chandler for your graduation! Title Optimal Floating Platform Design for Offshore Energy Systems Abstract A comprehensive study on the hydro-structural design exploration of floating platforms for offshore energy systems was performed using iterative design techniques. The study aims to develop a novel design method that optimizes the structure of the platform for stable dynamic responses to ocean waves, ensuring that the motion of the platform as well as its acceleration are …

Read More

Austin Griffin presented “Experimental identification of reduced order model parameters for hydrokinetic energy system design” at the ASME IMECE 2023

Austin Griffin presented “Experimental identification of reduced order model parameters for hydrokinetic energy system design” (Technical Presentation) at the ASME IMECE 2023. [BibTeX] Abstract This study presents the ongoing development of experimental validation and identification of the reduced order model (ROM) parameters for the horizontal axis hydrokinetic turbine (HAHkT) in the context of design optimization. It is crucial to optimize the HAHkT scale, external and internal geometry, rotor and blade design, and control scheme simultaneously to achieve cost-efficient energy conversion. …

Read More

Chandler Cain presented “Hydro-structural design exploration of floating platform for offshore energy systems” at the ASME IMECE 2023

Chandler Cain presented “Hydro-structural design exploration of floating platform for offshore energy systems” at the ASME IMECE 2023. [BibTeX] [PDF] [DOI] Full Paper To Appear at the ASME Digital Collections Abstract This paper presents a comprehensive study on the hydro-structural design exploration of floating platforms for offshore energy systems. The study aims to develop a novel design method that optimizes the structure of the platform for stable dynamic responses to ocean waves, ensuring that the motion of the platform remains …

Read More

Advancing Wind Farm Controls through Atmospheric Insights

We are initiating a study on advancing wind farm controls through atmospheric insights. The study will reveal how we use limited atmospheric measurement data in optimally control wind farms in collective ways. The hierarchical multidisciplinary design optimization with varied fidelity level will be used to train, estimate, and operate the target wind farms. Participating Students

Design Coupling Tool Development for Wind Energy with Integrated Servo-Control (WEIS) Framework

Design coupling tool enables a reduction in the number of design variables, while preserving sufficient design accuracy, resulting in a reduction in total design optimization cost. This project aims to develop design coupling analysis methodologies leveraging various modeling and analysis technologies, such as machine learning, surrogate modeling, and design process framework theories. The demonstration problem will be implemented in the Wind Energy with Integrated Servo-control (WEIS) toolset, based on the OpenMDAO-WEIS framework, and will identify groups of design variables that …

Read More