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On the performance characteristics of a synchronous motor fed from a voltage source inverter

Über das Betriebsverhalten eines Synchronmotors mit Spannungszwischenkreisumrichter

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Contents

Using two axis model the steady state characteristics of a voltage controlled synchronous motor drive are investigated for different modes of operation based on signal flow graph technique. The input voltages are assumed to be quasi square wave. The analysis shows that depending upon the mode employed the machine can be made to possess shunt, series or mixed characteristic. The torque developed is of pulsating nature. All the modes of operation have sixth harmonic pulsations which are roughly 20 percent of the mean value. A voltage fed motor is found to have reduced torque pulsations when compared to a current fed one with the same flux levels.

Übersicht

Aufgrund des Signalfußdiagramms wird das stationäre Verhalten des Spannungsgespeisten Synchronmotorantriebs bei rechteckförmiger Spannung für verschiedene Betricbsarten der Maschine untersucht. Dafür werden die Gleichungen der Maschine auf der Basis des Zweiachsenmodells aufgestellt. Die Untersuchungen zeigen, daß das Drehmoment Schwankungen hat, deren Amplitude um etwa 20 Prozent des Mittelwerts liegen. Weiter wird gezeigt, daß diese Schwankungen kleiner als die des stromgespeisten Synchronmotors sind. Je nach der Betriebsart besitzt die Maschine eine Drehmoment-Drehzahl Kennlinie, die der des Nebenschluß- oder Reihenschlußmotors ähnlich ist.

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Abbreviations

i d ,i q :

direct and quadrature axis components of stator current

i D ,i Q :

direct and quadrature axis components of damper currents

l d ,l q :

synchronous inductances of direct and quadrature axes respectively

l D ,l Q :

self inductances of damper windings

l hD ,l hQ :

mutual inductances between stator and damper windings

l hd :

mutual inductance between armature and field in the direct axis

L af :

mutual inductance between phasea and field winding

p :

operator

P :

pairs of poles

r a :

armature resistance

r f :

field resistance

r D ,r Q :

damper winding resistances in the direct and quadrature axes respectively

s :

Laplace operator

u d ,u q :

direct and quadrature axis components of stator voltages

Ψ d , Ψ q :

direct and quadrature axis components of stator flux linkages

Ψ D , Ψ Q :

damper flux linkages in the direct and quadrature axes

Ψ f :

field flux linkages

ω:

synchronous angular velocity

References

  1. Sato, N.: Induced voltage commutation type commutator-less motor. Electr. Eng. Japan 91 (1971), 114–124

    Google Scholar 

  2. Cornell, E. P. Novotny, D. W.: Commutation by armature induced voltage in self controlled synchronous machines. IEEE Trans. PAS 93 (1974) 760–766

    Google Scholar 

  3. Habock, A.; Kollensperger, D.: State and development of converter fed synchronous motors with self control, Siemens Rev. 9 (1971) 390–392

    Google Scholar 

  4. Williamson, A. C. et al.: Variable speed inverter fed synchronous motor employing natural commutation. Proc. IEE 125 (1978) 113–120

    Google Scholar 

  5. Turton, S. A.; Slemon, C. R.: Stability of a synchronous motor drive using a current source inverter with power factor control. IEEE Trans. PAS (1979)

  6. Shepherd, J.: Developments in inverter-synchronous motor systems. Proc. ICEM, part 2, 1980

  7. Lajoie-Mazenc, M.; Surchamp, Y.: Variable speed converter synchronous machines. OFAC Symposium Propr. 1, (1974) 523–534

    Google Scholar 

  8. Lipo, T. A.; Turnbull, F. G.: Analysis and comparison of two types of square wave inverter drives. IEEE Trans. Ind. Appl. IA-11 (1975) 137–147

    Google Scholar 

  9. Jones, C. V.: Unified theory of Electrical Machines. London: Butterworths

  10. FitzGerald, A. E.; Kingsley, C.: Electric Machinery, II Edn., New York; McGraw Hill

  11. Charlton, W.: Matrix methods for steady state analysis of inverter fed induction motors. Proc. IEE 120 (1973) 363–364

    Google Scholar 

  12. Subbarayudu, D.; Subrahmanyam, V.; Rao, M. V. C.: On the steady state analysis of inverter fed induction motor. Arch. Elektrotech. 59 (1977) 337–343

    Google Scholar 

  13. Subbarayudu, D.: Analysis and simulation of inverter fed induction motor under transient and steady state conditions. Ph. D. Thes. IIT Madras, 1978

  14. Dorf, R. C.: Time domain analysis and design of control systems. Addison Wesley (1965)

  15. Chalmers, B. J., et al.: Brushless d.c. traction dive. Proc. IEE 122 (1975) 733–738

    Google Scholar 

  16. Subrahmanyam, V.; Gopalakrishnan, N.: Analysis of commutation of current fed self controlled synchronous motor. Proc. Int. Conf. on Electr. Mach. Sept. 1980, Athens

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Authors and Affiliations

  1. Department of Electrical Engineering, Indian Institute of Technology, 600036, Madras, India

    V. Subrahmanyam & N. Gopalakrishnan

Authors
  1. V. Subrahmanyam
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  2. N. Gopalakrishnan
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Subrahmanyam, V., Gopalakrishnan, N. On the performance characteristics of a synchronous motor fed from a voltage source inverter. Archiv f. Elektrotechnik 67, 179–188 (1984). https://doi.org/10.1007/BF01584522

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  • DOI: https://doi.org/10.1007/BF01584522

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