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 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 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.
A method for indirect determination of energy data and output power on the shaft of an induction motor (IM) is presented. It is demonstrated that the application of the proposed method makes it possible to estimate power efficiency of IM operation without its withdrawal from the manufacturing process with minimum information about electric drive (ED) parameters and under the conditions of the impossibility of using power equipment for the creation of special operating conditions and testing actions.