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Proceedings ArticleDOI

Generators and power electronics technology for wind turbines

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TLDR
The state of the art on wind turbine technology is established by a market oriented approach and the applied topologies are reviewed in this article, where trends for generators and power electronics are reviewed through technical and economical identifiers in terms of weight and price versus nominal power.
Abstract
Due to the very fast development of power electronics, offering both higher capability and lower price/kW the applicability of power electronics in wind turbines increases rapidly. Moreover, new types of generators which may change the configuration of direct driven generators are being developed. This paper summarises the state of art regarding generator and power electronic concepts for wind turbines. The state of the art on wind turbine technology is established by a market oriented approach and the applied topologies are reviewed. Furthermore, trends for generators and power electronics are reviewed through technical and economical identifiers in terms of weight and price versus nominal power. New wind turbine designs are expected in the near future, exploiting the improved capabilities of generators and power electronics. Some of these new concepts are further discussed. Wind turbines are further being planned in big wind farms. These are subjected to quite high demands concerning power quality, controllability and safety. The paper also reviews potential concepts/technologies that can satisfy the defined restrictions.

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References
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Conceptual survey of Generators and Power Electronics for Wind Turbines

TL;DR: In this paper, the authors present a survey on generator concepts and power electronic concepts for wind turbines aimed as a tool for decision-makers and development people with respect to wind turbine manufactures, utilities, and independent system operators as well as manufactures of generators and power electronics.
Proceedings ArticleDOI

Switched reluctance generators for wind energy applications

TL;DR: In this article, the use of a 7.5 kW switched reluctance machine working as a generator is described. But the use as a wind turbine generator has not been properly investigated.

Comparison of generator topologies for direct-drive wind turbines

TL;DR: In this article, different generator topologies are investigated and a comparison is carried out, on the basis of 60 different machine prototypes built or designed by numerous authors, based on torque density and cost/torque.
Proceedings ArticleDOI

Comparison of alternative topologies for VRPM (transverse-flux) electrical machines

TL;DR: In this paper, a comparison of relative advantages and disadvantages of three alternative topologies for the general class of electric motors in which stator windings excite an air gap magnetic field of one pole-number, which is then modulated by a toothed steel structure so as to enable interaction with a heteropolar field of different pole number produced by an arrangement of rotor permanent magnets.
Proceedings ArticleDOI

Comparison of converter efficiency in large variable speed wind turbines

TL;DR: In this paper, the authors present a new and fast method for evaluating the efficiency of different power converter topologies in variable speed wind turbine applications, which involves an accurate model of the considered generator while the converter models are based on ideal switches.
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