A Comprehensive Analysis and Review on Electrical Machines in Wind Energy Conversion Systems

Aguemon, Dourodjayé Pierre; Agbokpanzo, Richard Gilles; Dubas, Frédéric; Vianou, Antoine; Chamagne, Didier; Espanet, Christophe

doi:10.4028/www.scientific.net/aef.35.77

Cited by 5 publications

(3 citation statements)

References 81 publications

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“…In a bid to eliminate the maintenance requirement and failures of the gearbox, gearless drivetrain WECS have been proposed. The EESG is an example of this low-speed (10-25 rpm), high-torque salient-multipole solution [43]. With high torque requirements comes the need for increased rotor diameter to accommodate a multipole structure.…”

Section: Electrically Excited Synchronous Generators (Eesg)mentioning

confidence: 99%

Non-Conventional, Non-Permanent Magnet Wind Generator Candidates

Udosen

Kalengo

Akuru

et al. 2022

Wind

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Global industrialization, population explosion and the advent of a technology-enabled society have placed dire constraints on energy resources. Furthermore, evident climatic concerns have placed boundaries on deployable energy options, compounding an already regrettable situation. It becomes apparent for modern renewable energy technologies, including wind generators, to possess qualities of robustness, high efficiency, and cost effectiveness. To this end, direct-drive permanent magnet (PM) wind generators, which eliminate the need for gearboxes and improve wind turbine drivetrain reliability, are trending. Though rare-earth PM-based wind generators possess the highly sought qualities of high-power density and high efficiency for direct-drive wind systems, the limited supply chain and expensive pricing of the vital raw materials, as well as existent demagnetization risks, make them unsustainable. This paper is used to provide an overview on alternative and viable non-conventional wind generators based on the so-called non-PM (wound-field) stator-mounted flux modulation machines, with prospects for competing with PM machine variants currently being used in the niche direct-drive wind power generation industry.

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Section: Electrically Excited Synchronous Generators (Eesg)mentioning

confidence: 99%

Non-Conventional, Non-Permanent Magnet Wind Generator Candidates

Udosen

Kalengo

Akuru

et al. 2022

Wind

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“…Grid Side Converter (GSC) and machine side converter (MSC) are linked together by a DC-link capacitor [7]. This method has the benefits of great efficiency, no additional power source for field excitation is needed, and better reliability due to the absence of slip rings and gearbox [8]. When the PCC voltage declines owing to grid faults, the GSC current rises to keep the grid powered.…”

Section: Introductionmentioning

confidence: 99%

A Fault Ride-Through Technique for PMSG wind turbines using Superconducting Magnetic Energy Storage (SMES) under Grid voltage sag conditions

Morgan¹,

Megahed²,

Suehiro³

et al. 2022

REPQJ

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Wind power penetration is growing, posing considerable technological challenges for developing electrical grid systems. Gearless permanent magnet synchronous generator (PMSG) wind energy conversion systems (WECS) are becoming more popular. On the flip side, they are susceptible to grid failures. The use of Superconducting Magnetic Energy Storage (SMES) to enhance fault ride-through in PMSG wind turbines is investigated. Per the current Grid code trends, WECS are not to be disconnected from the grid; rather, they should provide reactive power support during such situations. This work incorporates machine and grid side converters to manage reactive, active power and DC-link voltage during grid failures. To improves system performance, lessen voltage dips at the point of common coupling (PCC), provide reactive power support and reduce the transient length, a DC-link capacitor is used with SMES. SMES reserve energy capacity is necessary for FRT operation when the wind turbine's inertial response range is insufficient. Finally, a 1.5 MW PMSG-based WTG with SMES is developed. The Pre-fault, fault-period, and post-fault performance are all assessed. They confirm the system's efficiency, speed, and stability.

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“…Lack of gearbox and slip rings in PMSGs result in low maintenance and high efficiency at a reduced rotational speed. Also, PMSGs work at fullscale power converters with high grid capability (Aguemon et al, 2020;.…”

Section: Introductionmentioning

confidence: 99%

Dynamic evaluation of optimization techniques–based proportional–integral controller for wind-driven permanent magnet synchronous generator

et al. 2020

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Converters of permanent magnet synchronous generator (PMSG), driven by wind turbines, are controlled by a classical proportional–integral controller. However, many research studies highlighted the challenge in PMSG due to the poor performance of the classical proportional–integral controller, especially in the event of faults or wind speed variations. This article proposes a solution for the limitations of the classical proportional–integral controller with PMSG driven by a wind turbine. The proposed solution includes two optimization techniques: gray wolf optimizer and whale optimizer algorithm. To ensure the effectiveness of the proposed techniques, step change and random variation of wind speed are studied. Moreover, fault ride-through capability of the PMSG is studied with gray wolf optimizer and whale optimizer algorithm techniques during the occurrence of a three-phase fault incident. In this case, a braking chopper controlled by a hysteresis controller is connected to the DC-link capacitor. The simulated results show that compared with the classical proportional–integral controller, gray wolf optimizer and whale optimizer algorithm techniques are greatly efficient in improving the dynamic behavior of the PMSG during wind speed variations. Moreover, gray wolf optimizer and whale optimizer algorithm techniques present their effectiveness during the fault incident by suppressing the transient variations of all the PMSG parameters, improving the fault ride-through capability, and decreasing the total harmonic distortion of the current waveforms. All simulations are performed with MATLAB/ Simulink program package.

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A Comprehensive Analysis and Review on Electrical Machines in Wind Energy Conversion Systems

Cited by 5 publications

References 81 publications

Non-Conventional, Non-Permanent Magnet Wind Generator Candidates

Non-Conventional, Non-Permanent Magnet Wind Generator Candidates

A Fault Ride-Through Technique for PMSG wind turbines using Superconducting Magnetic Energy Storage (SMES) under Grid voltage sag conditions

Dynamic evaluation of optimization techniques–based proportional–integral controller for wind-driven permanent magnet synchronous generator

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