Kryshchuk R. Energy characteristics of the axial-flux arc-stator electric machines

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0417U000738

Applicant for

Specialization

  • 05.09.01 - Електричні машини і апарати

14-03-2017

Specialized Academic Board

Д 26.187.03

Institute of Electrodynemics, NAS of Ukraine

Essay

The оbject of research: Electromagnetic processes in the axial-flux arc-stator induction machines (AAIM) with solid disc rotors. The purpose of research: the development of mathematical models and methods for calculating electromagnetic fields and power characteristics of the AAIM with solid disc rotors, which takes into account the rotor azimuth currents and rotor linear velocity. Methods of research: System of Maxwell electromagnetic field equations; Analytical mathematical methods for solving differential equations; The Umov-Poynting theorem; Calculation tools in the computer algebra system; Methods of integral Fourier transforms and integral transformations in finite limits; Mathematical methods for solving second-order differential equations; Methods of the theory of generalized functions; The Maxwell tensor of tension. Theoretical and practical results and innovations: Energy characteristics and recommendations for designing AAIM with solid disc rotors for ball drum mills of thermal power plants; Theoretical value for the development of methods for calculating other design of the stator and the rotor AAIM's. A three-dimensional mathematical model of the electromagnetic field is developed, which, unlike others, takes into account the linear speed of rotation of the rotor and the azimuthal component of the rotor currents; Analytical methods have been developed for calculating the energy characteristics of the AAIM with solid disk rotors and compensated windings, with a complex account of the thickness, transverse and longitudinal edge effects; Analytical methods for calculating the axial magnetic forces of end-mounted, arc-induction asynchronous motors that act on magnetic and non-magnetic massive disk rotors, taking into account their position in the non-magnetic gap between the stators, are developed. A subject degree of introduction: calculation of electromagnetic field distribution and energy characteristics of the AAIM with solid disc rotors; recommended for use in design offices and in educational process for the development of design documentation AAIM with solid disc rotors; recommendations for design of the powerful AAIM can be used for development of the gearless electric drum ball mills. Sphere of use: electric machine building.

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