Stray losses in induction machines: Part II, calculation and reduction

IEEE Transactions on Power Apparatus and Systems

Volumn PAS-104, Issue 6, 1985, Pages 1506-1512

  Jimoh, A A ^a   Findlay, R D ^a   Poloujadoff, M ^a  

^a MCMASTER UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0001326790     PISSN: 00189510     EISSN: None     Source Type: Journal    
DOI: 10.1109/TPAS.1985.319166     Document Type: Article

References (69)

1. Field, A.B., ‘Eddy Currents in Large Slot-Wound Conductors’, Proc. A.I.E.E., Vol. 24, p. 761–88, 1905.
2. Field, M.B., ‘Idle Currents’, Journal I.E.E., 1906, Vol. 37, p. 83–93.
3. Taylor, H.W., ‘Eddy-Currents in Stator Windings’, Journal I.E.E., 1920, Vol. 58, p. 279–300.
4. Gilman, R.E., ‘Eddy-Current Losses in Armature Conductors’, 1920, Trans. AIEE, Vol. 39, p. 997–1056.
5. Gilman, R.E., ‘Eddy-Current Losses in Armature Conductors’, 1924, ibid, Vol. 43, p. 246–51.
6. Lyon, W.V., ‘Heat Losses in the Conductors of A–C Machines’, ibid, Vol. 40, 1921, p. 1361–95.
7. Lyon, W.V., ‘Heat Losses in the Stranded Armature Conductors’, ibid, Vol. 41, 1922, p. 199–214.
8. Lammeraner, J. and Stafl, M., ‘Eddy Currents’, (CRC Press, 1966).
9. Summers, I.H., ‘Reduction of Armature Copper Losses’, Trans. AIEE, 1927, 46, p. 101–111.
10. Alger, P.L., ‘The Nature of Induction Machines’, (Gordon and Breach, 1965).
11. Murkherji, K.B.C., ‘Stray Load Losses in a.c. Rotating Machinery’. A Review of the State of the Art, ERA Report 7/T102, 1956.
12. Anderson, O.W., ‘Finite Element Solution of Skin Effects and Eddy Current Problems’, IEEE Summer Power Meeting, Mexico City, paper A77 616-6, 1977.
13. Chari, M.V.K. and Csendes, Z.J., ‘Finite Element Analysis of the Skin Effect in Current Carrying Conductors’, IEEE Trans. on Mag., Vol. MAG-13, No. 5, Sept. 1977, p. 1125–27.
14. Weiss, J., and Csendes, Z., ‘Efficient Finite Element Solution of Multipath Eddy Current Problems’, ibid, Vol. MAG-18, No. 5, Nov. 1982, p. 1710–12.
15. Chari, M.V.R. and Bedrosian, G., ‘Electromagnetic Field Analysis of Eddy Current Effects in Rotating Electrical Apparatus and Machinery’, ibid, p. 1713–15.
16. Alger, P.L., Angst, G., and Davies, E.J., ‘Stray Load Losses in Polyphase Induction Machines’, Trans. AIEE, 1957, 78, p. 349–57.
17. Christofides, N., ‘Origins of Load Losses in Induction Motors with Cast Aluminium Rotors’, Proc. IEE, 1965, 112, p. 2317–32.
18. Rossmaier, V., ‘Berechhugn der durch unisolierte Kafige lenovgerufenen Zusatzverluste bei Asynchronmaschinen’, Elektrotech. u, maschinenbau, 1939, 57, p. 249–55.
19. Odok, A., ‘Stray-Load Losses and Stray Torques in Induction Machines’, Trans. AIEE, 1958, 77, pt. II, p. 43–53.
20. Alger, P.L., ‘Induced High-Frequency Currents in Squirrel-Cage Windings’, Ibid, 1957, 76, pt. III, p. 724–29.
21. Subba Rao, V., and Butler, O.I., ‘Stray Losses of Polyphase Cage-Induction Motors with Particular Reference to the Condition of Imperfect Rotor-Bar-Iron Insulation’, Proc. IEE, 1969, 116, p. 737–51.
22. Dreyfus, L., ‘Le Calcul des pertes par courants de foucault dans lés joues non-magnetriques de serrange des totes des grandes turbo-generatrices’, in ‘Comptes Rendus du Congres Internationale d'Electricité’, 1932, Vol. 4, p. 273–80.
23. Winchester, R.L., ‘Stray losses in the armature end iron of large turbine generators’, Trans. AIEE, 1958, 74, p. 381–91.
24. Kant, M., ‘Etude due champ magnetique de la partie frontale d'un turbo-alternateur’, Rev. Gen. Elect., 1966, 75, p. 913–20.
25. Hawley, R., Edwards, I.M., Heaton, J.M. and Stoll, R.L., ‘Turbogenerator end-region magnetic fields. Qualitative prediction by field plotting’, Proc. IEE, 1967, 114 (8), p. 1107–14.
26. Douglas, J.F.H., ‘Reactance of End-Connections’, Trans. AIEE, 1937, 56, p. 257–59.
27. Caldwell, Jr., B.H., ‘End-Winding Inductance of a Synchronous Machine’, Ibid, p. 455–61.
28. Harrington, D., ‘Forces in Machine End-Windings’, ibid, 1952, 71 part III, p. 849–59.
29. Carpenter, C.J., ‘The application of the method of images to machine end-winding fields’, Proc. IEE, 1960, 107A, p. 487–500.
30. Smith, R.T., ‘End component of armature leakage reactance of round rotor generators’, Trans. AIEE, 1958, 77, p. 636–47.
31. Honsinger, V.B., ‘Theory of End-Winding Leakage Reactance’, ibid, 1959, 78, p. 417–26.
32. Honsinger, V. B., ‘Measurement of End-Winding Leakage Reactance’, ibid, p. 426–31.
33. Ashworth, D.S., and Hammond, P., ‘The calculation of the magnetic field of rotating machins. Pt. 2 — The field of turbogenerator end-windings’, Proc. IEE, 1961, 108A, p. 527–38.
34. Lawrenson, P.J., ‘The magnetic field of the end-windings of turbo-generators; ibid, p. 538–48.
35. Tegopoulos, J.A., ‘Determination of the magnetic field in the end zone of turbine generators’, Trans. AIEE, 1963, 82, p. 562–72.
36. Reece, A.B.J. and Pramanik, A., ‘Calculation of the end region field of a.c. machines’, Proc. IEE, 1965, 112 (7), p. 1355–68.
37. Stoll, R.L., and Hammond, P., ‘Calculation of the magnetic field of rotating machines Part 5. Field in the end region of turbogenerators and the eddy-current loss in the end plates of stator cores’, Proc. IEE, 1966, 113, (11), p. 1793–1804.
38. Myerscough, C.J., ‘Calculation of magnetic fields in the end regions of turbogenerators’, ibid, 1974, 121, p. 653–56.
39. Okuda, H., ‘Calculation of magnetic field distribution in the end zone of generator winding’, Electr. Eng. Jpn., 1969, 89, No. 11, p. 27–33.
40. Sarma, M.S., Wilson, J.C., Lawrenson, P.J. and Joki, A.L., ‘End winding leakage of high-speed alternators by three-dimensional field determination’, Trans. IEEE, 1971, PAS 90, p. 465–73.
41. Jacobs, D.A.H., Minors, R.H., Myerscough, C.J., Rollason, M.L.J., and Steel, J.G., ‘Calculation of losses in the end region of turbogenerators’, Proc. IEE, 1977, 124, (4), p. 356–61.
42. Chari, M.V.K. and Silvester, P., ‘Analysis of turboalternators magnetic fields by finite elements’, IEEE Trans., 1971, PAS-90, p. 454–59.
43. Chari, M.V.K. and Sharma, D.K., and Kudlacik, H.W., ‘No load magnetic field analysis in the end region of a turbine generator by the method of finite elements’, IEEE Winter Meeting, New York, Paper No. A76 230-3, 1976.
44. Okuda, H., Kawamura, T., and Nishi, M., ‘Finite-Element solution of Magnetic Field and Eddy Current Problems inthe End Zone of Turbine Generators’, ibid, Paper No. A76141-2, 1976.
45. Howe, D., and Hammond, P., ‘Distribution of axial flux on the stator surface of the ends of turbogenerators’, Proc. IEE, 121, No. 9, p. 980–90.
46. Baird, J., ‘Eddy-Current Losses in Induction Motor End-Turn Clamping Rings’, Trans. AIEE, 1954, Part III, No. 12, p. 660–664.
47. Howe, D., and Hammond, P., ‘Examination of the axial flux in stator cores with particular reference to turbogenerators’, Proc. IEE, 1974, 121, (12), p. 1536–41.
48. Tavner, P.J., Penman, J., Stoll, R.L. and Lorch, H.O., ‘The influence of winding design on the axial flux in laminated stator cores’, ibid, 1978, 125, (10), p. 948–56.
49. Tavner, P. J., Hammond, P., and Penman, J., ‘Contribution to the study of leakage fields at the ends of rotating electrical machines’, ibid, 1978, 125 (12), p. 1339–49.
50. Ming-Zheng, H., and McPherson, G., ‘Experimental Investigation of the Field and Stray Losses of the End Bells of an Induction Motor’, IEEE/PES 1983 Summer Meeting, Los Angeles, paper 83 SM 481-9, July 1983.
51. Dreyfus, L., ‘Die zusatzlichen Eisenverluste in Drehstromasynchronmotoren I.’, Elektrotechnik und Maschinenbau, 1927, Vol. 45, p. 737–56.
52. Heller, B., and Hamata, V., ‘Harmonic Field Effects in Induction Machines’, (Elsevier Scientific, 1977).
53. Linkuous, C.E., ‘Effect of Skew on Induction Motor Magnetic Fields’, Trans. AIEE, Vol. 74, 1955, p. 760–65.
54. Heller, B., and Joki, A.L., ‘Losses in Squirrel-Cage Motors due to Rotor Skew’, Trans. IEEE, 1971, PAS-90, p. 557–63.
55. Behdashti, A., and Poloujadoff, M., ‘A New Method for the Study of Inter-Bar Currents in Polyphase Squirrel-Cage Induction Motors’, Trans. IEEE, 1979, PAS-98, p. 902–11.
56. Butler, O.I., and Mohammed, M.Z., ‘Change of Stray Loss of a Cage Induction Motor with Axial Variations of the Interbar Resistance’, Proc. IEE, 1971, 118, p. 884–86.
57. Christofides, N., and Adkins, B., ‘Determination of Load Losses and Torques in Squirrel-Cage Induction Motors’, ibid, 1966, 113, p. 1995–2005.
58. Lindsay, J.F., ‘Modelling of Stray Losses in Induction Machines’, IAS '75 Annual Meeting, paper 47C, p. 1045–48.
59. Lindsay, J.F., and Barton, T.H., ‘A Modern Approach to Induction Machine Parameter Identification’, Trans. IEEE, 1972, PAS-91, No. 4, p. 1493–1500.
60. Bates, J.J., and Tustin, A., ‘Temperature rises in Electrical Machines as Related to the Properties of Thermal Networks’, Proc. IEE, Vol. 103A, No. 11, 1956, p. 471–82.
61. Diamant, P., ‘The High Efficiency Induction Machine of the 1980's. Part One’, Trans. IEEE, 1981, PAS-100, p. 4965–68.
62. Schwarz, K.K., ‘Survey of Basic Stray Losses in Squirrel-Cage Induction Motors’, Proc. IEE, 1964, 111, p. 1565–74.
63. Kato, K., Kohno, H., Urabe, K., and Takahashi, T., ‘Analytical and Experimental Study or Reducing High Frequency Pulsation Losses Created by the Existence of Armature Slots Using Magnetic Slot Wedges’, Elect. Eng. in Japan, Vol. 102, No. 5, 1982, p. 103–11.
64. Chalmers, B.J., and Richardson, J., ‘Performance of some Magnetic Slot Wedges in an Open-Slot Induction Motor’, Proc. IEE, 1967, 114, p. 258–60.
65. Kaga, A., Anazawa, Y., Akagami, H., Watabe, S., and Makino, M., A Research of Efficiency Improvement by Means of Wedging with Soft Ferrite in Small Induction Motors’, IEEE Trans. on Mag., Vol. MAG-18, No. 5, Nov. 1982, p. 1547–49.
66. Anazawa, Y., Kaga, A., Akagami, H., Watabe, S., and Makino, M., ‘Prevention of Harmonic Torques in Squirrel Cage Induction Motors by Means of Soft Ferrite Magnetic Wedges’, IEEE Trans. on Mag., Vol. MAG-18, No. 5, Nov. 1982, p. 1550–52.
67. Spooner, E., ‘Stray Loss in Solid-Rotor Induction Machines, Proc. IEE, 1982, 129, Pt. B., p. 181–89.
68. Namburi, N.R., and Barton, T.H., ‘Thermal Modelling of an Induction Motor’, IEEE Trans. on Power Apparatus and Systems, Vol. PAS-102, No. 8, Aug. 1983, p. 2636–9.
69. Bahbouth, S., Roye, D., Perret, H., Le Huy, H., ‘Heating of a Static Inverter Fed Induction Machine’, IEEE IAS-Conference Record, IAS — 1982, p. 540–44.