Design of a 20-MW Fully Superconducting Wind Turbine Generator to Minimize the Levelized Cost of Energy

Hoang, Trung-Kien; Quéval, Loïc; Berriaud, Christophe; Vido, L.

doi:10.1109/tasc.2018.2810309

Cited by 48 publications

(23 citation statements)

References 16 publications

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“…Because of its underlying modeling hypotheses, the current sheet model is naturally adapted to slotless wound rotor electrical machine. As an example, we investigate here the performance of the 12-pole 3-phase synchronous machine with concentrated windings shown in Fig 1. Such a structure has been recently proposed for multi-MW fully superconducting wind turbine generators [12], [13]. The suppression of magnetic teeth is often considered for superconducting machines to cope with their large magnetic field (up to several Tesla), with the difficulty of winding superconducting materials and to simplify the cooling system.…”

Section: Resultsmentioning

confidence: 99%

Nonlinear Current Sheet Model of Electrical Machines

et al. 2020

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An incremental improvement of the classical semi-analytical current sheet model of electrical machines is proposed. First, it provides a better description of the current sheets that allows to consider, at the same time, the rotation of the rotor field winding and the time-dependent stator armature windings currents. This derivation is kept generic and the system to be solved is explicitly written in order to facilitate the implementation. Second, a refined iterative scheme that permits to account effectively for the nonlinearity of iron cores is introduced. It is demonstrated that the nonlinear current sheet model is particularly suitable for slotless wound rotor machines, being able to represent both the space harmonics and the saturation of the machine with a fair accuracy and computing speed compared to the nonlinear finite element model.

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Section: Resultsmentioning

confidence: 99%

Nonlinear Current Sheet Model of Electrical Machines

et al. 2020

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“…Кроме того, чтобы уменьшить вес машины и упростить криогенную систему, применяется беззубчатая магнитная цепь. По мнению авторов данной вариации генератора, криогенная и электромагнитная системы сильно связаны, и благодаря их сочетанию можно добиться значительного снижения расчётной стоимости энергии [9].…”

Section: рис 16 машина с постоянными магнитами переменного потокаunclassified

“…Криогенная конструкция Результаты показали, что рассмотренная технология является легкой, позволяющей снизить стоимость гондолы, башни и фундамента, а следовательно, и нормативную расчётную стоимость энергии по сравнению с обычным генератором. Но потери переменного тока велики, и они требуют на данном этапе исследования нецелесообразного количества криокулеров [9]. 7) Среднескоростной синхронный генератор магнитного сопротивления.…”

Section: рис 16 машина с постоянными магнитами переменного потокаunclassified

Perspective ways of developing generators for wind energy systems.

Бубенчиков¹,

Bubenchikova²,

Tereshchenko³

et al. 2019

RussiaMolodaya

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“…Several partial and fully SC machine designs have been proposed and demonstrated for offshore direct-drive wind turbines. It is theoretically shown that a fully SC topology can improve the efficiency and power density of wind turbines while lowering the levelized cost of energy [1]- [2]. However, before commercial application of fully SC machines, technical complexities must be addressed.…”

Section: Introductionmentioning

confidence: 99%

Evaluation and Mitigation of AC Losses in a Fully Superconducting Machine for Wind Turbine Applications

Balachandran

Lee

Salk

et al. 2020

IEEE Trans. Appl. Supercond.

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A significant challenge in the design of fully superconducting (SC) machines is managing ac losses in the SC armature. Recent developments in MgB 2 superconducting conductors promise low ac loss conductors suitable for fully SC machines. This paper presents an optimized design targeting low losses and low weight for a 10-MW fully SC generator suitable for offshore wind turbine applications. An outer rotor air-core machine topology is investigated to optimize the design with low weight and low losses. An active shielding concept is used to minimize the pole count without adding excessive weight. This enables a reduction in the electrical frequency for a practical design by a factor of 4 to 5 over current designs, driving ac losses and active components weight lower by an order of magnitude. In this study, armature current is varied to control electrical and magnetic loading in order to minimize losses. A pole count study is conducted to identify the design space suitable for MW scale machines. A comparison is made between active shield, passive shield and a hybrid topology to address the benefits of an active shield for weight reduction. Results suggest that low-pole-count designs with MgB 2 conductors will enable machines with less than 1 kW of ac losses.

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Design of a 20-MW Fully Superconducting Wind Turbine Generator to Minimize the Levelized Cost of Energy

Cited by 48 publications

References 16 publications

Nonlinear Current Sheet Model of Electrical Machines

Nonlinear Current Sheet Model of Electrical Machines

Perspective ways of developing generators for wind energy systems.

Evaluation and Mitigation of AC Losses in a Fully Superconducting Machine for Wind Turbine Applications

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