Development of electrical machine with magnets and cores obtained by powder metallurgy

Article information

Abstract

The aim of this work was the development (design, construction and tests) of a Three-phase Synchronous Machine with permanent magnets and four poles to be used in small wind turbines, where the rotor and stator cores, usually constructed from laminated steel sheets, were replaced for massive blocks obtained from the Powder Metallurgy (PM) process. The other parts of the machine, such as housing, shaft, bearings and covers, were obtained from conventional three-phase induction motor of 10 HP. Initially, it was studied sintered alloys from pure iron, Fe-Si, Fe-P and Fe-Ni; eventually these alloys were analyzed in terms of magnetic and mechanical properties as well as electrical resistivity. From this study, it was chosen the use of sintered pure iron for the construction of the rotor and Fe1%P for the construction of the stator. The permanent magnets used were Nd-Fe-B, and the windings calculation was based on the coiling of the three-phase induction motor. According to the tests performed, it was observed the generation of a three-phase sinusoidal wave voltage of 242 VRMS, and the yield of 40.8%.

Keywords:

three-phase synchronous machine

magnetic materials

powder metallurgy.

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References

[1]

A.E. Fitzgerald, C. Kingsley Jr., S. Umans, et al.

Electric machinery.

7th ed., McGraw-Hill, (2013),

[2]

S.A. Nasar.

Handbook of electric machines.

McGraw-Hill, (1987),

[3]

F. Fiorillo.

Measurement and characterization of magnetic materials.

Elsevier, (2004),

[4]

O. Gutfleisch, M.A. Willard, E. Brück, C.H. Chen, S.G. Sankar, J.P. Liu, et al.

Adv. Mater, 23 (2011), pp. 821

[5]

P. Jansson.

Powder Metall, 35 (1992), pp. 63

[6]

R.F. Krause, J.H. Bularzik, H.R. Kokal.

J. Mater. Eng. Perform, 6 (1997), pp. 710

[7]

S.D. Bittencourt, L. Schaeffer, M.M. Dias.

Ligas magnéticas sinterizadas usadas em máquinas elétricas rotativas, NEA.

Porto Alegre, (2015),

[8]

S.J. Chapman.

Electric machinery fundamentals.

4th ed., McGraw-Hill, (2003),

[9]

S. Bradbury.

Powder metallurgy equipment manual.

3th ed., Metal Powder Industries Federation, Princeton, (1986),

[10]

R.M. German.

Powder Metallurgy and particulate materials processing: The processes, materials, products, properties, and applications, Metal Powder Industries Federation.

Princeton, (2005),

[11]

F.E. Luborsky, J.D. Livingston, G.Y. Chin, R.W. Cahn, P. Haasen, et al.

4th ed. Physical metallurgy.

Elsevier, (1996), pp. 2501-2565

[12]

Grupo Setorial de Metalurgia do Pó, A Metalurgia do pó: alternativa econômica com menor impacto ambiental, Metallum Eventos Técnicos e Científicos.

São Paulo, (2009),

[13]

H. Shokrollahi.

Mater. Des, 30 (2009), pp. 3374

[14]

A.S.M. International Handbook Committee Powder metal technologies and applications.

10th ed., ASM International, Materials Park, (1998),

[15]

C. Lall, L.W. Baum.

Modern developments in powder metallurgy, Metal Powder Industries Federation.

Princeton, (1988), pp. 363-389

[16]

F.V. Lenel.

Magnetic applications.

Metals Handbook., 7 (1984),

[17]

J.A. Bas, J.A. Calero, M.J. Dougan.

J. Magn. Magn. Mater, 254 (2003), pp. 391

[18]

L.L. Cerva, Desenvolvimento de uma máquina síncrona com ímãs permanentes e núcleo sinterizado utilizada em aerogerador, Porto Alegre: Thesis (2014). Available: http://hdl.handle.net/10183/103726.

[19]

G.G. Jacoby, Desenvolvimento de uma máquina elétrica rotativa trifásica por metalurgia do pó a ser utilizada em gerador eólico de 5 kW, Novo Hamburgo: Thesis (2016). Available:http://biblioteca.feevale.br/Dissertacao/DissertacaoGilsonGJacoby.pdf

[20]

M.G. Borba, Desenvolvimento de uma máquina síncrona trifásica com núcleo do rotor produzido a partir da metalurgia do pó e ímãs de Neodímio-Ferro-Boro para aplicação em aerogeradores, Porto Alegre: Thesis (2016). Available: http://www.ufrgs.br/ldtm/

[21]

P. Pauletti, Construção e análise do desempenho de um motor de indução trifásico com núcleo produzido via metalurgia do pó, Porto Alegre: Thesis (2012). Available: http://hdl.handle.net/10183/75715

[22]

F.M. Fernandes, Desenvolvimento de um estator por metalurgia do pó a ser utilizado em um motor universal, Porto Alegre: Thesis (2015). Available: http://hdl.handle.net/10183/118848

[23]

R.L.R.D. Cas, Desenvolvimento de um rotor por metalurgia do pó a ser utilizado em um motor universal, Porto Alegre: Thesis (2015). Available: http://hdl.handle.net/10183/118847

[24]

R.F. Niada, Desenvolvimento de um mini-motor com o estator produzido por processo de metalurgia do pó, Porto Alegre: Thesis (2015). Available: http://hdl.handle.net/10183/135007

[25]

J.L. Rosa, Desenvolvimento de uma máquina síncrona trifásica para servo motor com ímãs de Nd-Fe-B e núcleos do rotor e estator de uma liga sinterizada, Novo Hamburgo: Thesis (2015). Available: http://biblioteca.feevale.br/pergamum/biblioteca/index.php

[26]

R.F. Mesquita, Construção de um mini motor com núcleos do estator e rotor a partir da metalurgia do pó, Novo Hamburgo: Thesis (2013). Available: http://biblioteca.feevale.br/Dissertacao/DissertacaoRaulMesquita.pdf

[27]

A.L.A. Lopes, Desenvolvimento de um motor de passo com núcleos do rotor e estator obtidos a partir dos processos da metalurgia do pó, Novo Hamburgo: Thesis (2016). Available:http://biblioteca.feevale.br/pergamum/biblioteca/index.php.

[28]

M.M. Dias, Construção de uma máquina síncrona de relutância trifásica com rotor de material magnético macio sinterizado, Porto Alegre: Thesis (1999). Available: http://www.ufrgs.br/ldtm/

[29]

J.A.E. Lewis Jr., Servomotor 400 W com nucleo do rotor e estator obtido a partir de ligas compósitos de material magnético macio, Porto Alegre: Thesis (2009). Available: http://hdl.handle.net/10183/16918

[30]

V. Martins, Utilização do processo de moldagem por injeção de pós metálicos nanométricos (MIM) para o desenvolvimento de rotor e estator em servomotor aplicado à área médica, Porto Alegre: 2015. Available: http://www.ufrgs.br/ldtm/

[31]

M.E. Pfingstag, Desenvolvimento de um mini motor de passo à partir da moldagem por injeção de pós metálicos, Porto Alegre: Thesis (2014). Available: http://hdl.handle.net/10183/109154

[32]

F.P. Ronchi, Construção e análise do desempenho de um motor de corrente contínua utilizando materiais magnéticos macios a partir da metalurgia do pó, Porto Alegre: Thesis (2015). Available: http://hdl.handle.net/10183/130088

[33]

L. Pelegrini, S.D. Bittencourt, P. Pauletti, J.C.K. Verney, M.M. Dias, L. Schaeffer, et al.

Mater. Res, 18 (2015), pp. 1070

[34]

M.M. Dias, H.J. Mozetic, J.S. Barboza, R.M. Martins, L. Pelegrini, L. Schaeffer, et al.

Powder Technol, 237 (2013), pp. 213

[35]

D. Jiles.

Introduction to magnetism and magnetic materials.

2th ed., Chapman and Hall, (1998),

[36]

A.S.T.M. A773/A773M-01: Standard test method for DC magnetic properties of materials using ring and permeameter procedures with DC electronic hysteresigraphs,.

American Society for Testing and Materials - ASTM West Conshohocken, (2009),

[37]

R.L. Boylestad, L. Nashelsky.

Electronic devices and circuit theory.

10th ed., Prentice Hall, (2009),

[38]

A.S.T.M. E10: Standard Test Methods for Brinell hardness of metallic materials.

American Society for Testing and Materials - ASTM West Conshohocken, (2001),

[39]

A.S.T.M. E9: Standard test methods of compression testing of metallic materials at room temperature.

American Society for Testing and Materials - ASTM West Conshohocken, (2009),

[40]