# asynchronous motor

## Modelling the Modes of System of Asynchronous Centrifugal Units of Multi-Unit Pumping Station with Serial Connection of Pumps

Based on the current regulations on pipeline transport, the need for a systematic approach to the study of processes occurring in the technological complexes of pumping stations of the main pipelines and their power supply systems is shown.

## Regression analysis of the performance of asynchronous electric motors on the basis of support vector machine (SVM)

The subject of the article is relevant, since the proposed method for performing a regression analysis of the operation of asynchronous motors does not have special requirements to the accuracy of measuring the quantities used in the regression analysis and to the volume of a training sample, so it can be used in modern embedded diagnostic systems.

## The Study of Single Phasing Mode of Three-phase Asynchronous Motor

The problem of calculation of transients in asynchronous motors which works from single-phase network with capacitors in a single phase is examined. The basis of the algorithm is a mathematical model of induction motors with the high level of adequacy. This model takes into account the phenomena of skin effect in the bars of the rotor and magnetic core saturation.

## Математичне моделювання стопорних режимів роботи помпового агрегату стенда для випробування гідравлічної апаратури

Mathematical model of unit, which includes asynchronous motor, clutch and pump is proposed. The model includes non-linear differential equations of electromagnetic effects in motor and motion equations of mechanical units, which generates uniform system. Calculation of transition process is developed by numerical integration of this system.

## Technology of investigation of asynchronous motors with a squirrel-cage rotor using a universal parametric generator of a finite-element model

The technology of the numerical research into asynchronous motors with a squirrel-cage rotor with arbitrary-shaped slots using a universal parametric generator of the finite-element magnetic field models has been developed. The mathematical built-in software packages with an integrated, developed by the authors, dynamic-link library EMLib are used. The parametric generator allows a series of models for asynchronous motors used in programmable numerical experiments to be created.

## Macromodel induction motor on experimental data

Macromodel of three-phase asynchronous motor transients for current power stator, rotor speed and load on the shaft is described. Experimental transients is reproduced of first order maсromodel and relative mean square error less than one percent

## Transient processes in asynchronous electric drive with individual reactive power compensation in case of loss of supply voltage

The article discusses the problem of calculation transient processes in the asynchronous motors with capacitors switched in parallel that work in case of leakage of input voltage. The basis of the algorithm is a mathematical model of asynchronous motor that includes phenomenon of current extrusion in the bars of the rotor and magnetic saturation.

## The harmonic field effects in shaded-pole induction motor

The article discusses the problem of calculation transient processes in the asynchronous motors with capacitors switched in parallel that work in case of leakage of input voltage. The basis of the algorithm is a mathematical model of asynchronous motor that includes phenomenon of current extrusion in the bars of the rotor and magnetic saturation

## Dynamic and static modes of electric drive of rod deep-well pumping units

The paper considers boundaries of application of static equilibrium equations for exploring the oil pumping unit operation. The effect of crank counterbalance oscillation frequency on the character of the pumping unit full operation cycle and the dynamical component of the torque was studied. The algorithm relies on the mathematical model of the asynchronous motor and pumping unit.

## Mathematical model of asynchronous motor taking into account rotor teeth skewV.Gladkyj

A mathematical model for asynchronous motor taking into account rotor teeth skew has been developed. The model is based on magnetic field computation allowing for core saturation and magnetomotive forces spatial harmonics, differential equations algebrization with the g-th order backward differentiation formula and nonlinear algebraic equations system solving with Newton’s method.