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A Comparative Analy...
A Comparative Analysis of Linear and Nonlinear Control of Wave Energy Converter for a Force Control Application
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- Parwal, Arvind (författare)
- Uppsala universitet,Elektricitetslära
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- Fregelius, Martin (författare)
- Uppsala universitet,Elektricitetslära
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Almeida, Pedro (författare)
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visa fler...
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- Svensson, Olle, 1967- (författare)
- Uppsala universitet,Elektricitetslära
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- Temiz, Irina, 1981- (författare)
- Uppsala universitet,Elektricitetslära
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- Oliveira, Janaína Goncalves de, 1983- (författare)
- Uppsala universitet,Elektricitetslära
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- Boström, Cecilia (författare)
- Uppsala universitet,Elektricitetslära
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- Leijon, Mats, 1958- (författare)
- Uppsala universitet,Elektricitetslära
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visa färre...
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(creator_code:org_t)
- Southampton, UK : International Marine Energy Journal, 2024
- 2024
- Engelska.
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Ingår i: International Marine Energy Journal. - Southampton, UK : International Marine Energy Journal. - 2631-5548.
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- The aim of wave energy converters (WECs) is to harvest the energy from the ocean waves and convert into electricity. Optimizing the generator output is a vital point of research. A WEC behaves as a nonlinear system in real ocean waves and a control that approximates the behaviour of the system is required. In order to predict the behaviour of WEC, a controller is implemented with an aim to track the referenced trajectory for a force control application of the WEC. A neural model is implemented for the system identification and control of the nonlinear process with a neural nonlinear autoregressive moving average exogenous (NARMAX) model. The neural model updates the weights to reduce the error by using the Levenberg-Marquardt back-propagation algorithm for a single-input-single-output (SISO) nonlinear system. The performance of the system under the proposed scheme is compared to the same system under a PI-controller scheme, where the PI gains have been tuned accordingly, to verify the control capacity of the proposed controller. The results show a good tracking of dq (direct-quadrature) axes currents by regulating the stator currents, and hence a force control is achieved at different positions of the translator. The dynamic performance of the control is verified in a time domain analysis for the displacement of the translator.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- current control
- force control
- neural NARMAX
- permanent magnet linear generator (PMLG)
- wave energy converter
- Elektroteknik med inriktning mot reglerteknik
- Electrical Engineering with specialization in Automatic Control
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Parwal, Arvind
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Fregelius, Marti ...
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Almeida, Pedro
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Svensson, Olle, ...
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Temiz, Irina, 19 ...
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Oliveira, Janaín ...
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visa fler...
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Boström, Cecilia
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Leijon, Mats, 19 ...
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visa färre...
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