Design of new concept permanent magnet induction wind generator

Potgieter, Johannes H. J.; Kamper, Maarten J.

doi:10.1109/ecce.2010.5617908

Cited by 18 publications

(9 citation statements)

References 11 publications

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“…To overcome the disadvantages in the WECS with PMIG, namely difficult construction and the need of extra set of bearings, a new concept direct grid-connected WECS with a slip-synchronous permanent magnet generator (SS-PMG) was proposed in [93,94], which is similar to the WECS with the PMIG.…”

Section: Direct Grid-connected Wecs Without Convertersmentioning

confidence: 99%

The state of the art of wind energy conversion systems and technologies: A review

Cheng¹,

Zhu²

2014

Energy Conversion and Management

527

205

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Section: Direct Grid-connected Wecs Without Convertersmentioning

confidence: 99%

The state of the art of wind energy conversion systems and technologies: A review

Cheng¹,

Zhu²

2014

Energy Conversion and Management

527

205

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“…This paper detailed a proposed design for the synchronisation controller (SC) that forms an essential part of the direct-togrid S-PMG concept introduced in [2]. This approach to grid connection has not previously, to the authors' knowledge, been documented in literature for small-scale (sub-100 kW) WTGs.…”

Section: Discussionmentioning

confidence: 99%

“…The slip-permanent magnet generator (S-PMG) described in [2] can be connected directly to both the wind turbine and the electrical grid. This sets it apart from other grid-connected topologies, such those making use of doubly-fed induction generators (DFIGs) and converter-fed synchronous generators (SGs), shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Direct grid connection of a slip-permanent magnet wind turbine generator

Hoffmann

Bouwer

Kamper

2011

2011 IEEE Energy Conversion Congress and Exposition

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The slip-permanent magnet generator offers potential for direct-driven, direct-to-grid sub-100 kW wind turbine generators. This reduces complexity and cost, as well as maintenance requirements. A major challenge, however, is to synchronise the generator to the grid without the benefit of turbine torque control. This paper presents the simulation and testing of a synchronisation controller designed to achieve this goal. Simulations are used to determine acceptable conditions for synchronisation and to evaluate two speed control approaches, based on loading the generator with a resistor bank. A thyristorbased control strategy is shown to operate effectively, even under turbulent wind conditions. Experimental tests of the system show that the synchronisation mechanism works correctly -good agreement with simulation results is achieved.

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“…This, in principle, reduces the magnetizing current and improves the power factor as well as torque density of induction machine [13]. The advantages of PMIG for wind power applications are very attractive as it avoids the use of gearboxes and power electronic converters for grid-connection, which make it very promising for the future large scale offshore wind farms [14].…”

Section: Introductionmentioning

confidence: 99%

Design and analysis of permanent magnet induction generator for grid-connected direct-driven wind power application

Cheng

Sun

et al. 2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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Without power electronics and mechanical gearbox, the permanent magnet induction generator (PMIG), a new grid-connected direct-driven wind generator concept, is considered to be a highly efficient, low maintenance solution for high capacity offshore wind power generation system. In this paper, the characteristics and optimal design method of this generator for wind power application are investigated. The working principle and the dynamic model are deduced. Two kinds of permanent magnet rotors as well as the magnetic characteristics are analyzed and compared by the magnetic circuit. The size equation is analytically derived and the initial calculation of machine dimensions and parameters, namely, the core diameter, stack length, and permanent magnet size, are also discussed. Moreover, finite element analysis (FEA) is carried out for design optimization, in which the machine overload capability and demagnetization protection under grid short circuit fault are investigated. Finally, a design guideline form the PMIG is developed. A 10 kW prototype machine is built in the laboratory and the experimental results are given to verify the design and analysis. Keywords-permanent magnet induction generator (PMIG), finite element analysis (FEA), analytical method, wind power application.I.

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Design of new concept permanent magnet induction wind generator

Cited by 18 publications

References 11 publications

The state of the art of wind energy conversion systems and technologies: A review

The state of the art of wind energy conversion systems and technologies: A review

Direct grid connection of a slip-permanent magnet wind turbine generator

Design and analysis of permanent magnet induction generator for grid-connected direct-driven wind power application

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