The Experts below are selected from a list of 78822 Experts worldwide ranked by ideXlab platform
Mufit Altin - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Short-Term Overproduction Response of Variable Speed Wind Turbines
IEEE Transactions on Sustainable Energy, 2018Co-Authors: Mufit Altin, Anca Daniela Hansen, Thanasis K. Barlas, Kaushik Das, Jayachandra N. SakamuriAbstract:Emphasis in this paper is on the optimization of the short-term Overproduction response of variable speed wind turbines for synthetic inertia provision or fast frequency control. The short-term Overproduction response of wind turbines plays a crucial role in the enhancement of the resilience of future power systems with low inertia especially during large frequency disturbances. Novel optimization approaches employing the genetic algorithm are proposed to maximize the released energy from the wind turbine during its Overproduction period considering the electrical and mechanical constraints. Based on the optimization results, the paper identifies and analyzes a set of relevant aspects to be taken into account by power system operators and wind turbine developers in the process of designing the synthetic inertia provision or the fast frequency control. Additionally, the impact of the short-term over production response on the wind turbine structural loading is analyzed through a set of aeroelastic simulations to further investigate aerodynamic limitations.
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analysis of the short term Overproduction capability of variable speed wind turbines
Renewable Energy, 2014Co-Authors: Anca Daniela Hansen, Mufit Altin, Ioannis Margaris, German C TarnowskiAbstract:Emphasis in this article is on variable speed wind turbines (VSWTs) capability to provide short-term Overproduction and better understanding of VSWTs' mechanical and electrical limits to deliver such support. VSWTs' short-term Overproduction capability is of primary concern for the transmission system operators (TSOs) in the process of restoring critical situations during large frequency excursions in power systems with high wind power penetration.
Anca Daniela Hansen - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Short-Term Overproduction Response of Variable Speed Wind Turbines
IEEE Transactions on Sustainable Energy, 2018Co-Authors: Mufit Altin, Anca Daniela Hansen, Thanasis K. Barlas, Kaushik Das, Jayachandra N. SakamuriAbstract:Emphasis in this paper is on the optimization of the short-term Overproduction response of variable speed wind turbines for synthetic inertia provision or fast frequency control. The short-term Overproduction response of wind turbines plays a crucial role in the enhancement of the resilience of future power systems with low inertia especially during large frequency disturbances. Novel optimization approaches employing the genetic algorithm are proposed to maximize the released energy from the wind turbine during its Overproduction period considering the electrical and mechanical constraints. Based on the optimization results, the paper identifies and analyzes a set of relevant aspects to be taken into account by power system operators and wind turbine developers in the process of designing the synthetic inertia provision or the fast frequency control. Additionally, the impact of the short-term over production response on the wind turbine structural loading is analyzed through a set of aeroelastic simulations to further investigate aerodynamic limitations.
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analysis of the short term Overproduction capability of variable speed wind turbines
Renewable Energy, 2014Co-Authors: Anca Daniela Hansen, Mufit Altin, Ioannis Margaris, German C TarnowskiAbstract:Emphasis in this article is on variable speed wind turbines (VSWTs) capability to provide short-term Overproduction and better understanding of VSWTs' mechanical and electrical limits to deliver such support. VSWTs' short-term Overproduction capability is of primary concern for the transmission system operators (TSOs) in the process of restoring critical situations during large frequency excursions in power systems with high wind power penetration.
German C Tarnowski - One of the best experts on this subject based on the ideXlab platform.
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analysis of the short term Overproduction capability of variable speed wind turbines
Renewable Energy, 2014Co-Authors: Anca Daniela Hansen, Mufit Altin, Ioannis Margaris, German C TarnowskiAbstract:Emphasis in this article is on variable speed wind turbines (VSWTs) capability to provide short-term Overproduction and better understanding of VSWTs' mechanical and electrical limits to deliver such support. VSWTs' short-term Overproduction capability is of primary concern for the transmission system operators (TSOs) in the process of restoring critical situations during large frequency excursions in power systems with high wind power penetration.
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variable speed wind turbines capability for temporary over production
Power and Energy Society General Meeting, 2009Co-Authors: German C Tarnowski, Philip C Kjar, Poul Ejnar Sorensen, Jacob OstergaardAbstract:New control systems for Variable Speed Wind Turbines (VSWT) need to be developed in order to provide inertia response and frequency control to support the grid. This work studies the behavior and capability of VSWT for providing temporary active power Overproduction. The study is conducted on a multi-megawatt VSWT with Doubly-Fed Induction Generator. It was found that it is possible to have an active power Overproduction of 0.2 pu for at least 10 seconds, which could be useful for the grid operator for restoring a critical situation of grid frequency dip. Nevertheless it is important to be aware about the underproduction power and the associated recovery period that follow a VSWT Overproduction operation. The results can be used in designing suitable control systems for VSWT inertia response and frequency control.
Jayachandra N. Sakamuri - One of the best experts on this subject based on the ideXlab platform.
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Optimization of Short-Term Overproduction Response of Variable Speed Wind Turbines
IEEE Transactions on Sustainable Energy, 2018Co-Authors: Mufit Altin, Anca Daniela Hansen, Thanasis K. Barlas, Kaushik Das, Jayachandra N. SakamuriAbstract:Emphasis in this paper is on the optimization of the short-term Overproduction response of variable speed wind turbines for synthetic inertia provision or fast frequency control. The short-term Overproduction response of wind turbines plays a crucial role in the enhancement of the resilience of future power systems with low inertia especially during large frequency disturbances. Novel optimization approaches employing the genetic algorithm are proposed to maximize the released energy from the wind turbine during its Overproduction period considering the electrical and mechanical constraints. Based on the optimization results, the paper identifies and analyzes a set of relevant aspects to be taken into account by power system operators and wind turbine developers in the process of designing the synthetic inertia provision or the fast frequency control. Additionally, the impact of the short-term over production response on the wind turbine structural loading is analyzed through a set of aeroelastic simulations to further investigate aerodynamic limitations.
Tiangang Liu - One of the best experts on this subject based on the ideXlab platform.
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Streptomyces species: Ideal chassis for natural product discovery and Overproduction.
Metabolic engineering, 2018Co-Authors: Ran Liu, Zixin Deng, Tiangang LiuAbstract:There is considerable interest in mining organisms for new natural products (NPs) and in improving methods to overproduce valuable NPs. Because of the rapid development of tools and strategies for metabolic engineering and the markedly increased knowledge of the biosynthetic pathways and genetics of NP-producing organisms, genome mining and Overproduction of NPs can be dramatically accelerated. In particular, Streptomyces species have been proposed as suitable chassis organisms for NP discovery and Overproduction because of their many unique characteristics not shared with yeast, Escherichia coli, or other microorganisms. In this review, we summarize the methods for genome sequencing, gene cluster prediction, and gene editing in Streptomyces, as well as metabolic engineering strategies for NP Overproduction and approaches for generating new products. Finally, two strategies for utilizing Streptomyces as the chassis for NP discovery and Overproduction are emphasized.
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Strategies for terpenoid Overproduction and new terpenoid discovery
Current opinion in biotechnology, 2017Co-Authors: Guangkai Bian, Zixin Deng, Tiangang LiuAbstract:Terpenoids comprise the largest family of natural products and have widespread applications. The Overproduction of value-added terpenoids and the efficient mining of new terpenoids represent major challenges in the fields of metabolic engineering and natural product discovery. For terpenoid Overproduction in microbial systems, in vitro reconstitution strategy guided rational engineering was emphasized, and -omics studies provide further information for targeted engineering. In addition, systematic engineering, including host and pathway engineering for terpenoid Overproduction was reviewed. Furthermore, robust precursor supplies with optimized high-production hosts can also be used as an efficient platform to rapidly screen terpene cyclases and accelerate the process of mining new terpenoids.
