An up to date review of continuously variable speed wind turbines with mechatronic variable transmissions

Yin, Xiuxing

doi:10.1002/er.3908

Cited by 9 publications

(7 citation statements)

References 54 publications

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“…The requirements on the classical wind turbine drive trains are getting more and stricter such as low cost and high reliability. However, these needs for pure large mechanical gearboxes lead to technological challenges in large gearboxes and highly stressed structural components like planetary carriers [1]. For example, the difficulties in today's 3 MW mutli-megawatt wind turbine gearboxes are related to internal gear fabrication, lubrication management and gearing corrections [2].…”

Section: Introductionmentioning

confidence: 99%

Retracted: Design and Experiments of a Hybrid Wind Turbine Drive Train using both Hydraulic and Mechanical Transmissions

Lin

2019

Env Prog and Sustain Energy

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Retraction: Gu, H., Li, W. and Lin, Y. (2019). Design and Experiments of a Hybrid Wind Turbine Drive Train using both Hydraulic and Mechanical Transmissions. Environmental Progress & Sustainable Energy. DOI: https://doi.org/10.1002/ep.13045 The above article, published online on 20 January 2019 in Wiley Online Library (http://wileyonlinelibrary.com), has been retracted by agreement between the authors, Haigang Gu, Wei Li, Yonggang Lin, the journal Editor‐in‐Chief, Professor Martin Abraham, the AIChE, and Wiley Periodicals, LLC. The retraction has been agreed as it was submitted by the submitting author, Xiuxing Yin, who is not listed as an author on the published version, without the consent of the authors listed on the article who were unaware of its submission.

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Section: Introductionmentioning

confidence: 99%

Retracted: Design and Experiments of a Hybrid Wind Turbine Drive Train using both Hydraulic and Mechanical Transmissions

Lin

2019

Env Prog and Sustain Energy

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“…Several studies have revealed that pumped storage stations w to 70% can be operated efficiently by applying variable-speed technology [18]. To r the variable-speed operation of hydropower plants and maintain the constant-freq connection to the grid-the power electronic component frequency converter, wh more commonly used in wind power plants-is used [19]. Then, several variablemethods are proposed, and the structures of the two connection methods of va speed hydropower units, which are more frequently used at present, are shown in F 1 and 2.…”

Section: Introductionmentioning

confidence: 99%

Regulation Characteristics and Load Optimization of Pump-Turbine in Variable-Speed Operation

Wang

2021

Energies

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In order to improve the operating and regulation characteristics of the hydropower unit and to stabilize the load fluctuations, variable-speed pumped storage technology based on converters has been proposed and given more attention recently. However, different from the conventional units, due to the variability of operation conditions, variable-speed units need to develop a load optimization strategy in terms of operating parameter identification to ensure state matching for operation. Therefore, this paper proposes an optimization search step based on the model test curve, and the process of parameter optimization search is elaborated and calculated in the turbine operating condition and pump operating condition, respectively. A mathematical model of the turbine regulation system is established to analyze the influence of speed and guide vane related parameters on the regulation characteristics, and the achievable operating range and regulation capacity in the variable-speed condition is pointed out based on pump-turbine model test, as well as the advantages over the fixed-speed operation. The results show that by applying the load optimization method, the variable-speed unit can be significantly improved in terms of operating efficiency, especially at low head and low power conditions. Meanwhile, a certain range of active power regulation can be realized by the decoupling control of the converter and measuring the guide vane opening in both modes. The analysis of the model test verifies the effectiveness of the variable-speed regulation operation of pump-turbine and provides a reference for the design and operation of the variable-speed hydropower units.

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“…Wind turbines (WTs) are typically exposed to continuously varying loads, large and continuous output power fluctuations and continuously varying thermal loading conditions EC 37,8 because of the stochastic nature of highly variable and unpredictable wind speeds. Currently, the WTs are typical two configurations: the electrically-based variable speed WTs and the continuously variable speed wind turbines (CVWTs) (Yin, 2019;Yin et al, 2016;Yin, 2017;Yin et al, 2019). The state art review of the CVWTs hydraulic transmissions with elaborates on the typical CVSWTs with hydrostatic transmission, hybrid hydraulic transmission and hydrodynamic transmission has been focused by Yin (2019).…”

Section: Introductionmentioning

confidence: 99%

“…A hydro-viscous transmission-based maximum power extraction control for CVWTs to increase the power capture has been presented in Yin et al (2016). The CVSWTs with different mechatronic transmission topologies regarding basic configurations, dynamic characteristics, control principles and experimental or simulation results has been reviewed in Yin (2017). The current status and prospects of CVWTs has been systematically reviewed in Yin et al (2019), which indicate the feasibility of applying CVSWTs, as well as the high potential of using the hydro-viscous transmission in the wind power industry.…”

Section: Introductionmentioning

confidence: 99%

A dynamic reliability assessment methodology of gear transmission system of wind turbine

Liu

Dong²,

Jiang

2020

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Purpose The purpose of this paper is to present a new methodology, used for dynamic reliability analysis of a gear transmission system (GTS) of wind turbine (WT), which could be used for assembly decision-making of the parts with errors to improve the GTS’s performance. Design/methodology/approach This paper involves the dynamic and dynamic reliability analysis of a GTS. The history curves of dynamic responses of the parts are obtained with the developed gear-bearing coupling dynamic model considering the random errors, failure dependency and random load. Then, the surrogate models of the mean and standard deviation of responses are presented by statistics, rain flow counting method and corrected-partial least squares regression response surface method. Further, a novel dynamic reliability model based on the maximum extreme theory, a theory of sequential statistics, equivalent principles and the inverse transform theory of random variable sampling, is developed to overcome the limitations of traditional methods. Findings The dynamic reliability of GTS considering the different impact factors are evaluated. The proposed reliability methodology not only overcomes the limitations associated with traditional approaches but also provides good guidance to assembly the parts in a GTS to its best performance. Originality/value Instead of constant errors, this paper considers the randomness of the impact factors to develop the dynamic reliability model. Further, instead of the limitation of the normal distribution of the random parameters in the traditional method, the proposed methodology can deal with the problems with non-normal distribution parameters, which is more suitable for the real engineering problems.

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An up to date review of continuously variable speed wind turbines with mechatronic variable transmissions

Cited by 9 publications

References 54 publications

Retracted: Design and Experiments of a Hybrid Wind Turbine Drive Train using both Hydraulic and Mechanical Transmissions

Retracted: Design and Experiments of a Hybrid Wind Turbine Drive Train using both Hydraulic and Mechanical Transmissions

Regulation Characteristics and Load Optimization of Pump-Turbine in Variable-Speed Operation

A dynamic reliability assessment methodology of gear transmission system of wind turbine

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