Exploring Fully Superconducting Air-Core Machine Topology for Off-Shore Wind Turbine Applications
Exploring Fully Superconducting Air-Core Machine Topology for Off-Shore Wind Turbine Applications
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探索海上风力涡轮机应用的全超导空心电机拓扑
DOI：
10.1109/tmag.2019.2905591
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发表时间：
2019
影响因子：
2.1
通讯作者：
Haran, Kiruba
中科院分区：
文献类型：
--
作者：
Lee, Dongsu;Balachandran, Thanatheepan;Cho, Han-Wook;Haran, Kiruba
本文提出了一个电磁（EM）分析和可行性设计研究的10兆瓦的空芯全超导（SC）发电机的海上风力涡轮机的应用。该电机拓扑结构在电枢和励磁绕组中均使用MgB2SC导线，以降低发电机成本。为了减轻电机的重量，传统SC电机设计中的定子铁芯被屏蔽线圈取代，以抑制电机内部的磁通。这种空芯设计允许气隙磁通密度在不饱和的情况下增加，以在机器设计中实现增加的功率密度。此外，消除铁芯也消除了铁芯损耗。这对于离岸风力涡轮机应用是有吸引力的特征，在离岸风力涡轮机应用中，机器重量可以减小而效率增加。初步EM研究进行了10兆瓦，10 r/min的完全SC空心机设计和相关的交流损耗进行了评估。电机的设计规范提供了电枢、磁场和屏蔽绕组参数的详细信息。有限元（FE）分析是用来评估的磁通密度和转矩分布的机器。为了减少电枢线圈中的交流损耗，电枢绕组处的磁通密度被设置为2T。初步结果表明，这种全SC空心发电机相比于类似的全SC MW风力涡轮机设计，在交流损耗方面表现出更好的性能。
This paper presents an electromagnetic (EM) analysis and feasibility design study of a 10 MW air-core fully superconducting (SC) generator for off-shore wind turbine applications. This machine topology uses MgB2SC wires in both armature and field windings to reduce the generator cost. To reduce the weight of the machine, stator iron core in the traditional SC machine design is replaced with shield coils to contain the flux inside the machine. This air-core design allows the air-gap flux density to be increased without saturation to achieve an increased power density in machine design. Further, eliminating the iron core also eliminates the core losses. This is an attractive feature for off-shore wind turbine applications where machine weight can be reduced with increased efficiency. Preliminary EM studies are performed on a 10 MW, 10 r/min fully SC air-core machine design and its associated ac losses are evaluated. Design specification of the machine is provided with the armature, field, and shield winding parameter details. Finite element (FE) analysis is used to evaluate the flux density and torque profile of the machine. To reduce the ac losses in the armature coils, magnetic flux density at the armature winding is set to be 2 T. The preliminary results show this fully SC air-core generators show better performance in ac losses compared to the similar fully SC MW wind turbine designs.
10 MW MgB2超导直驱风力发电机设计研究
DOI：
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发表时间：
2014
期刊：
影响因子：
--
作者：
A. Abrahamsen;N. Magnusson;Dong Liu;Ewoud Stehouwer;B. Hendriks;H. Polinder
通讯作者：
H. Polinder
主动屏蔽超导励磁绕组的多目标优化：极数研究
DOI：
--
发表时间：
2015
期刊：
International Electric Machines and Drives Conference
影响因子：
--
作者：
David Loder;K. Haran
通讯作者：
K. Haran
DOI：
--
发表时间：
2015
期刊：
Power and Energy Conference at Illinois
影响因子：
--
作者：
David Loder;K. Haran
通讯作者：
K. Haran