Winding distribution coefficient calculation model and method considering motor slot conductor distribution difference

Abstract

The invention belongs to the field of motor science, and particularly relates to a winding distribution coefficient calculation model and method considering motor slot conductor distribution difference. Modeling and analysis of the motor winding are more accurate. The method comprises the steps of 1, determining a distribution scheme of motor phase windings, coil assemblies, wire turns and wires in motor grooves according to a motor design scheme, and distributing all the phase windings, the coil assemblies, the wire turns and the wires in the corresponding motor grooves; 2, selecting a motorspace reference position, and determining a distribution area of a phase winding, a coil assembly, a wire turn and a wire in the motor groove according to the geometric dimension of each part in the motor groove; and 3, numbering all the phase windings, the coil assemblies, the wire turns and the wires distributed in the motor grooves; step 4, calculating no-load back electromotive force vectors generated by all the phase windings, coil assemblies, wire turns and wires which are numbered and distributed in the motor groove; and step 5, determining a motor winding distribution coefficient, andfurther performing subsequent research by utilizing the coefficient.

Description

technical field [0001] The invention relates to a calculation model and method of distribution coefficients of motor windings, in particular to a calculation model and method of distribution coefficients of windings considering differences in conductor distribution in motor slots, and belongs to the field of electromechanics. Background technique [0002] With the continuous development of motor design theory, analysis theory and control theory, special motors of different types, structures and functions have gradually appeared, and have been widely used in many fields and industries. [0003] Usually, in the theoretical research and engineering control of electric motors, it is a common step to establish a mathematical model of the electric motor and determine the control algorithm based on the physical model of the electric motor, winding theory, and operating mechanism. In recent years, with the emergence of motor servo control systems and precision control systems, as we...

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Problems solved by technology

[0005] The distribution coefficient is related to the mechanical angle of the slot distance or the electrical angle of the slot distance. However, the existing motor winding calculation models and methods usually only consider the distribution differences of the phase windings, coil groups, and turns in different motor slots, and ignore the motor slots. The difference in the distribution of the inner conductor in the spatial position, that is, a certain degree of "equivalent" and "simplification" is used to facilitate the modeling and analysis of the motor winding, but the introduction of this "equivalent" and "simplification" makes the motor winding model There is a certain degree of deviation from the actual physical model, which makes the motor control effect unsatisfactory, which is not conducive to the formation of the basic theory and technical system of high-quality servo motor system

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