Flux maximization in wind turbine permanent magnet synchronous generator made of NdFeB permanent magnets

Prashanth, N. A.

doi:10.1016/j.matpr.2021.05.224

Cited by 6 publications

(4 citation statements)

References 12 publications

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“…The stator winding wires are connected to an external system that consumes the generated electric current. As a result of the movement of the permanent magnet rotor around the stator, the magnetic field lines intersect the stator winding, which generates an electric current in the winding wires [7][8][9].…”

Section: Permanent Magnet Generator and The Development Of Wind Energ...mentioning

confidence: 99%

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Assessment of the Risk of the Loss of Supply, the Recycling Rate and the Degree of Substitutability of Elements in the NdFeB Magnets of a Small Wind Farm Generator

Baron,

Kowol,

Matusiak

et al. 2024

Energies

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Existing shortages on the market of critical and strategic raw materials and problems with the supply chain of selected raw materials, mainly those from China, indicate the need to develop recycling technologies for devices containing the above-mentioned materials. The aim of this work should be to ensure a sustainable supply of raw materials for industry in the EU. One potential source of raw materials may be small-power wind turbine generators equipped with permanent magnets (NdFeB). This research allowed for the development of a methodology for disassembling a generator containing NdFeB magnets in order to determine the shares of individual elements. Due to the significant shares of critical and strategic elements in permanent magnets, a detailed economic analysis was carried out. Based on the research results, economic benefits resulting from the recovery of valuable elements were indicated. The significant market value of critical and strategic raw materials contained in neodymium magnets was demonstrated. The risk of the loss of supplies, the recycling rate and the possibility of replacing the elements in permanent magnets were assessed.

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Section: Permanent Magnet Generator and The Development Of Wind Energ...mentioning

confidence: 99%

“…In the case of this type of installation, the height of which does not exceed 3 m, no building permit or notification would be required. The suggested solutions will certainly accelerate the construction of new wind micro-installations [1,9,12].…”

Section: Permanent Magnet Generator and The Development Of Wind Energ...mentioning

confidence: 99%

Assessment of the Risk of the Loss of Supply, the Recycling Rate and the Degree of Substitutability of Elements in the NdFeB Magnets of a Small Wind Farm Generator

Baron,

Kowol,

Matusiak

et al. 2024

Energies

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“…Kalıcı mıknatıslarda kullanılan nadir toprak elementleri, herhangi bir manyeto motor kuvvet (MMK) uyartımı olmaksızın manyetik alan oluşturabilen malzemeler olarak bilinmektedirler. Nadir toprak elementlerinin konsantrasyonu ile elde edilen NdFeB türü mıknatısların uygulama alanı çoğunlukla rüzgâr enerjisi [2], okyanusdalga enerjisi [3], elektrikli araçlar [4] gibi temiz enerji teknolojileri ile ilişkilendirilmektedir. NdFeB mıknatıslar, üstün manyetik özelliklerinden dolayı yüksek performanslı cihazlarda da yaygın olarak kullanılmaktadır [5].…”

Section: Giriş (Introduction)unclassified

Gömülü kalıcı mıknatıslı-fırçasız doğru akım motorda (IPMBLDC) kullanılan farklı güç dereceli NdFeB mıknatısların motor performansına etkisinin incelenmesi

Toren

Mollahasanoglu

2023

Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi

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Fırçasız doğru akım motorları (Brushless Direct Current-BLDC) senkron motorlar grubunda sınıflandırılan ve endüstriyel birçok alanda avantajlı özellikleri dolayısıyla tercih edilen elektrik motorlarındandır. BLDC motorlarının yapısında bulunan sabit manyetik alan üreten mıknatıslar, motor performansına doğrudan katkı sağlamaktadır. BLDC ve diğer elektrikli motorlarda, yapısında Alnico (Alüminyum-Nikel-Kobalt), Ferrite (Seramik), SmCo (Samaryum-Kobalt) ve NdFeB (Neodimyum -Demir-Bor) sembolleri ile gösterilen kalıcı mıknatıslar bulunmaktadır. BLDC motorlarda kullanılan ve nadir toprak elementlerinin farklı güç derecelerinde elde edilen NdFeB mıknatıslar, mükemmel manyetik özellikleri dolayısıyla tercih edilmektedirler. Kalıcı mıknatıslarda, birçok fiziksel etken ve çevresel durumun etkisi olmasına rağmen, performans değerleri, maksimum enerji verimi 〖BH〗_max, artık akı yoğunluğu B_r , ve içsel zorlayıcı kuvvet H_ci parametreleri ile belirlenebilmektedir. Bu çalışmada, kalıcı mıknatıslı rotor yapısına sahip BLDC motorlarda kullanılan NdFeB elementlerin farklı güç derecelerinde elde edilen mıknatısların (N38-N42-N52) gömülü monteli rotora sahip kalıcı mıknatıslı BLDC motor (IPMBLDC) performansına etkisi incelenmektedir. Motor performansı, tork verim ve hız değerleri açısından değerlendirilmektedir. Ayrıca, 2,45 kW IPMBLDC motor için sonlu elemanlar yöntemi kullanılarak yapılan analiz ile kalıcı mıknatısların motor ısı transferine etkileri belirlenmektedir.

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“…Therefore, this paper selects NdFeB materials with high performance and excellent temperature stability. NdFeB materials are widely used in the field of motors due to their excellent electromagnetic properties [15]. The NdFeB permanent magnet easily loses excitation when the working environment of the motor is poor and the iron core loss is large [16,17].…”

Section: Introductionmentioning

confidence: 99%

A Novel Design of Permanent Magnets for the Air Gap Magnetic Field of Hollow-Cup Motor

Sun

2023

Applied Sciences

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Spacecraft motors are often driven with trapezoidal phase currents to achieve higher output torque. For hollow cup motors (HCM) driven by trapezoidal wave currents, parallel magnetised permanent magnet (PM) motors produce an air gap magnetic field (AMF) waveform which is significantly different from the trapezoidal wave, causing the motor to generate noise or vibration. The existing control optimisation method or structure improvement design method is difficult to directly apply to HCM due to its large gas gap. In this paper, according to the fundamental theory of a constant magnetic field, the AMF of HCM is analysed using the equivalent surface current method (ESCM) and its mathematical model is established. The analytical expression of the AMF is solved, and the influencing parameters of the AMF are clarified. The structural design of the HCM with eccentric PMs sintered with high-performance NdFeB is further improved. On this basis, a prototype motor is designed. Simulation results show that the structure can effectively increase the width of the flat section of the AMF and make the AMF close to an ideal trapezoidal wave (ITW). Experiments verify the correctness of the method.

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Flux maximization in wind turbine permanent magnet synchronous generator made of NdFeB permanent magnets

Cited by 6 publications

References 12 publications

Assessment of the Risk of the Loss of Supply, the Recycling Rate and the Degree of Substitutability of Elements in the NdFeB Magnets of a Small Wind Farm Generator

Assessment of the Risk of the Loss of Supply, the Recycling Rate and the Degree of Substitutability of Elements in the NdFeB Magnets of a Small Wind Farm Generator

Gömülü kalıcı mıknatıslı-fırçasız doğru akım motorda (IPMBLDC) kullanılan farklı güç dereceli NdFeB mıknatısların motor performansına etkisinin incelenmesi

A Novel Design of Permanent Magnets for the Air Gap Magnetic Field of Hollow-Cup Motor

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