Stator MMF Harmonics at Non-sinusoidal Machine Power Supply (for M ≥ 1, Q ≥ 1)

  • Iliya Boguslawsky
  • Nikolay Korovkin
  • Masashi Hayakawa

This chapter presents investigation methods of MMF harmonics of time orders Q and spatial m excited by currents of stator multiphase winding for various connection schemes (star, with separate phase power supply, etc.). When developing these methods, practical results are obtained for three- and six-phase machines most often used in practice. Peculiarities in operation of machines of both types at non-sinusoidal power supply are compared; not only advantages are noted, but also shortcomings of machines with six-phase windings. Stated are practical ways to decrease the influence of higher time harmonics fields in air gap for machines operating in networks with modern frequency converters. Results of investigation performed in this chapter are a stage for determination of magnetically coupled loops in A.C. machine stator when operating in nonlinear network. Practical examples are given.

The content of this chapter is development of the methods stated in [1, 2, 8, 9, 10, 11, 12].



Frequency Converter Harmonic Order Synchronous Machine Spatial Order Stator Loop 
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I. Monographs, general courses, textbooks

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Copyright information

© Springer Japan KK 2017

Authors and Affiliations

  • Iliya Boguslawsky
    • 1
  • Nikolay Korovkin
    • 1
  • Masashi Hayakawa
    • 2
  1. 1.Peter the Great St. Petersburg Polytechnic UniversitySaint PetersburgRussia
  2. 2.The University of Electro-CommunicationsTokyoJapan

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