асинхронний двигун

In modern industry, the most widely used are adjustable electric drives of the ‘Frequency converter - induction motor’ (FC-AM) system, in which integer-order controllers are mainly implemented and used. The use of fractional-order controllers in electromechanical FC-AM systems allows to ensure: higher quality of transition processes, increase the stability margin and reliability of the system, higher robustness to changes in motor parameters and, as a result, guarantees higher performance compared to classical integer controllers.

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.

A comparative analysis of the influence of coordinate and parametric perturbations on the dynamic characteristics of the systems of subordinate (sequential adjustment) and modal (parallel adjustment) control in relation to the electric drive thyristor voltage converter — induction motor. For this purpose the uniform conditions of their functioning are provided. First of all, it is the synthesis of both systems according to the same standard (binomial) forms, as well as the effect of the same parametric and coordinate perturbations on the systems.

The article is shown the possibility and efficiency of the using of the ATV320 frequency inverter as an automation tool in case using of integrated logic controller ATV Logic. The example of practical realization of the control system of crusher electric drive is given.

The influence of shunting factor of magnetic flux of shaded-pole induction motor on steady-states has been considered. The motor magnetic circuit is presented by the ramified equivalent circuit. The differential harmonic method of calculation of steady-states is using.

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.

The control system of electric drives with Crankshaft mechanism load has been analyzed. Method of tuning speed feedback adjusting was developed. The result can be used for the designing new systems of electric drives.

The control system of electric drives with Crankshaft mechanism load has been analyzed. Method of tuning speed feedback adjusting was developed. The result can be used for the designing new systems of electric drives.

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.