Trends in Wind Turbine Generator Systems

Polinder, H.; Ferreira, J.A.; Jensen, Bogi Bech; Abrahamsen, Asger Bech; Atallah, K.; McMahon, R.A.

doi:10.1109/jestpe.2013.2280428

Cited by 472 publications

(208 citation statements)

References 69 publications

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“…In addition, when the powergrid voltage dips are not symmetrical, the grid-side converter under the influence of a negative-sequence component and the outlets of the converter produces double-frequency fluctuations in the DC-bus voltage; consequently, the stator current of the generator is affected [154]. In a mechanism analysis model, an asymmetrical fault voltage drop can be transformed into a positive-and negative-sequence separation problem of symmetrical voltage drop by using the symmetrical component method [155,156]. Therefore, the asymmetry of the power-grid voltage drop may be considered a complex form of symmetrical voltage drop.…”

Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

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Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Huang

Xiao

et al. 2017

Front. Mech. Eng.

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Electric power conversion system (EPCS), which consists of a generator and power converter, is one of the most important subsystems in a direct-drive wind turbine (DD-WT). However, this component accounts for the most failures (approximately 60% of the total number) in the entire DD-WT system according to statistical data. To improve the reliability of EPCSs and reduce the operation and maintenance cost of DD-WTs, numerous researchers have studied condition monitoring (CM) and fault diagnostics (FD). Numerous CM and FD techniques, which have respective advantages and disadvantages, have emerged. This paper provides an overview of the CM, FD, and operation control of EPCSs in DD-WTs under faults. After introducing the functional principle and structure of EPCS, this survey discusses the common failures in wind generators and power converters; briefly reviewed CM and FD methods and operation control of these generators and power converters under faults; and discussed the grid voltage faults related to EPCSs in DD-WTs. These theories and their related technical concepts are systematically discussed. Finally, predicted development trends are presented. The paper provides a valuable reference for developing service quality evaluation methods and fault operation control systems to achieve high-performance and high-intelligence DD-WTs.

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Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

“…Scholars have suggested the following methods to address failures under variable-flow system energy balance [153][154][155][156][157][158][159][160][161]:…”

Section: Operation and Control Of Epcss In Dd-wts Under Grid Faultsmentioning

confidence: 99%

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Huang

Xiao

et al. 2017

Front. Mech. Eng.

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“…2) The turbine speed cannot be adjusted to the wind speed to optimize the aerodynamic efficiency [3], [6], [9]- [12]. 3) Wind speed fluctuations are directly translated into electromechanical torque variations which cause high mechanical and fatigue stresses on the system [3], [6], [9]- [12].…”

Section: ) Advantagesmentioning

confidence: 99%

“…3) Wind speed fluctuations are directly translated into electromechanical torque variations which cause high mechanical and fatigue stresses on the system [3], [6], [9]- [12]. 4) A three-stage gearbox in the drive train represents a large mass in the nacelle and also a large investment cost [5].…”

Section: ) Advantagesmentioning

confidence: 99%

Electric Machines & Their Comparative Study for Wind Energy Conversion Systems (WECSs)

Mojumdar¹,

Himel²,

Rahman³

et al. 2015

JOCET

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Abstract-Wind energy is currently one of the most costeffective energy source to produce electricity among different renewable resources. With significant growth of wind power capacity installed worldwide and rapid development of technologies, various Wind Energy Conversion Systems (WECSs) with different electric machines have been developed during last two decades to maximize the energy capture, to minimize costs, to improve power quality and so on. Within the scope of this review, a comparative study of different WECSs with specific electric machines has been presented describing their concepts, idiosyncrasies, classifications, advantages, disadvantages and current market trends.

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“…Superconducting generators, using superconductors for the field windings, could allow the potentially higher reliability of direct-drive generators [7,8], but without the associated problem of high structural mass [9]. This is possible due to the high airgap flux density produced by the superconducting field windings [10,11]. Superconducting generators are under investigation by several companies including General Electric [12], Converteam (now part of GE) [13], ASMC and Siemens, as well as the EUfunded INNWIND project.…”

Section: Introductionmentioning

confidence: 99%

Grid fault ride-through of an LCC-VSC tandem converter, used as a grid interface for a multi-MW wind turbine.

Parker¹,

Finney²

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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This version is available at https://strathprints.strath.ac.uk/56349/ Strathprints is designed to allow users to access the research output of the University of Strathclyde. Unless otherwise explicitly stated on the manuscript, Copyright © and Moral Rights for the papers on this site are retained by the individual authors and/or other copyright owners. Please check the manuscript for details of any other licences that may have been applied. You may not engage in further distribution of the material for any profitmaking activities or any commercial gain. You may freely distribute both the url (https://strathprints.strath.ac.uk/) and the content of this paper for research or private study, educational, or not-for-profit purposes without prior permission or charge.Any correspondence concerning this service should be sent to the Strathprints administrator: strathprints@strath.ac.ukThe Strathprints institutional repository (https://strathprints.strath.ac.uk) is a digital archive of University of Strathclyde research outputs. It has been developed to disseminate open access research outputs, expose data about those outputs, and enable the management and persistent access to Strathclyde's intellectual output. 1Grid fault ride-through of an LCC-VSC tandem converter, used as a grid interface for a multi-MW wind turbine. AbstractA tandem converter, consisting of a line-commutated converter in parallel with a voltage source active filter, is proposed as a grid interface for a 10 and 20MW superconducting wind turbine generator. A commutation assistance scheme is introduced which allows the active filter to regulate the commutation of the LCC thyristors. This can allow ride through of grid faults by enabling the LCC thyristors to continue commutating with reduced grid voltage, which enables the use of tandem converters as a grid interface for renewable energy sources. The commutation assistance scheme is verified using simulation.

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Trends in Wind Turbine Generator Systems

Cited by 472 publications

References 69 publications

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Overview of condition monitoring and operation control of electric power conversion systems in direct-drive wind turbines under faults

Electric Machines & Their Comparative Study for Wind Energy Conversion Systems (WECSs)

Grid fault ride-through of an LCC-VSC tandem converter, used as a grid interface for a multi-MW wind turbine.

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