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Model and experimental validation of ocean kite dynamics and controls
This submission includes two peer-reviewed papers from researchers at North Carolina State University presenting the modeling and lab-scale experimentation of the dynamics and control of a tethered tidal ocean kite. Below are the abstracts of each file included in the submission.
Alvarez ECC: Flight and Tether Dynamics
This paper models the dynamics of a marine tethered energy harvesting system focusing on exploring the sensitivity of the kite dynamics to tether parameters. These systems repetitively reels a kite out at high tension, then reels it in at low tension, in order to harvest energy. The kite?s high lift-to-drag ratio makes it possible to maximize net energy output through periodic cross-current flight. Significant modeling efforts exist in the literature supporting such energy maximization. The goal of this paper is to address the need for a simple model capturing the interplay between the system?s kite and tether dynamics. The authors pursue this goal by coupling a partial differential equation (PDE) model of tether dynamics with a point mass model of translational kite motion.
Siddiqui JDSMC: Lab-scale closed-loop model and validation
This paper presents a study wherein we experimentally characterize the dynamics and control system of a lab-scale ocean kite, and then refine, validate, and extrapolate this model for use in a full-scale system. Ocean kite systems, which harvest tidal and ocean current resources through high-efficiency cross-current motion, enable energy extraction with an order of magnitude less material (and cost) than stationary systems with the same rated power output. However, an ocean kite represents a nascent technology that is characterized by relatively complex dynamics and requires sophisticated control algorithms. In order to characterize the dynamics and control of ocean kite systems rapidly, at a relatively low cost, the authors have developed a lab-scale, closed-loop prototyping environment for characterizing tethered systems, whereby 3D printed systems are tethered and flown in a water channel environment.
Complete Metadata
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|---|---|
| accessLevel | public |
| bureauCode |
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"019:20"
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| contactPoint |
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"fn": "Chris Vermillion",
"@type": "vcard:Contact",
"hasEmail": "mailto:cvermil@ncsu.edu"
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| description | This submission includes two peer-reviewed papers from researchers at North Carolina State University presenting the modeling and lab-scale experimentation of the dynamics and control of a tethered tidal ocean kite. Below are the abstracts of each file included in the submission. Alvarez ECC: Flight and Tether Dynamics This paper models the dynamics of a marine tethered energy harvesting system focusing on exploring the sensitivity of the kite dynamics to tether parameters. These systems repetitively reels a kite out at high tension, then reels it in at low tension, in order to harvest energy. The kite?s high lift-to-drag ratio makes it possible to maximize net energy output through periodic cross-current flight. Significant modeling efforts exist in the literature supporting such energy maximization. The goal of this paper is to address the need for a simple model capturing the interplay between the system?s kite and tether dynamics. The authors pursue this goal by coupling a partial differential equation (PDE) model of tether dynamics with a point mass model of translational kite motion. Siddiqui JDSMC: Lab-scale closed-loop model and validation This paper presents a study wherein we experimentally characterize the dynamics and control system of a lab-scale ocean kite, and then refine, validate, and extrapolate this model for use in a full-scale system. Ocean kite systems, which harvest tidal and ocean current resources through high-efficiency cross-current motion, enable energy extraction with an order of magnitude less material (and cost) than stationary systems with the same rated power output. However, an ocean kite represents a nascent technology that is characterized by relatively complex dynamics and requires sophisticated control algorithms. In order to characterize the dynamics and control of ocean kite systems rapidly, at a relatively low cost, the authors have developed a lab-scale, closed-loop prototyping environment for characterizing tethered systems, whereby 3D printed systems are tethered and flown in a water channel environment. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "Alvarez ECC - Flight and Tether Dynamics.pdf",
"format": "pdf",
"accessURL": "https://mhkdr.openei.org/files/339/ECC2021_miguel.pdf",
"mediaType": "application/pdf",
"description": "Alvarez et al. peer-reviewed paper submitted to the European Control Conference (ECC 2021). Details a PDE-based tether model for a kite-based energy system and the sensitivity of projected kite performance on the tether model."
},
{
"@type": "dcat:Distribution",
"title": "Siddiqui JDSMC - Lab-scale closed-loop model and validation.pdf",
"format": "pdf",
"accessURL": "https://mhkdr.openei.org/files/339/Siddiqui_JDSMC_2020.pdf",
"mediaType": "application/pdf",
"description": "Siddiqui et al. peer-reviewed journal paper published in ASME Journal of Dynamic Systems, Measurement, and Control (JDSMC 2020). presenting lab-scale, water channel-based validation of an ocean kite dynamic model."
}
]
|
| identifier | https://data.openei.org/submissions/7983 |
| issued | 2020-03-01T07:00:00Z |
| keyword |
[
"CEC",
"Hydrokinetic",
"MHK",
"Marine",
"closed-loop",
"control",
"controller",
"drag",
"dynamics",
"energy",
"experimental characterization",
"flight",
"hydrofoil",
"lab test",
"lab-scale",
"lift",
"lift-to-drag ratio",
"model",
"modeling",
"ocean",
"ocean kite",
"point mass model",
"power",
"tether",
"tethered",
"tidal",
"tidal kite",
"validation"
]
|
| landingPage | https://mhkdr.openei.org/submissions/339 |
| license | https://creativecommons.org/licenses/by/4.0/ |
| modified | 2021-07-30T19:54:46Z |
| programCode |
[
"019:009"
]
|
| projectLead | Carrie Noonan |
| projectNumber | EE0008635 |
| projectTitle | Device Design and Robust Periodic Motion Control of an Ocean Kite System for Marine Hydrokinetic Energy Harvesting |
| publisher |
{
"name": "North Carolina State University",
"@type": "org:Organization"
}
|
| spatial |
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|
| title | Model and experimental validation of ocean kite dynamics and controls |
