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In the article the research of electrical power processes is made for optimum modeling and design of special electric drives with asynchronous motors. For creation of various types of electric drives with optimum mass dimensional and power indicators, it is necessary to define precisely values of electric currents windings, the electromotive forces and the corresponding flux linkage in the stator and a rotor of components of the research devices. The main difficulty in the research and determination of parameters is continuous change of these sizes in a consequence of change of electric parameters of the feeding system of tension, the spatial provision of mobile parts of the drive relatively motionless parts and features of the technological process. It leads to change of interposition of axes of the field of the stator and a rotor, phase angles of shift of electric currents and the electromotive forces of components of special electric drives. The research of electrical power processes with use of the methods based on electromechanical transformation of energy allows determining required parameters quite precisely. Determination of value of the savedup energy will allow one to model and design quite precisely without the corresponding experimental adjustment special electric drives. And this approach allows one to determine power parameters at any moment that gives the chance to define instant values of required parameters, including instant values of force and the moment on a shaft of the electric drive. Exact and correct definition of power ratios in the research electric drives will allow one not only to carry out optimum design, but also to create optimum control systems of electric drives taking into account technological features of concrete production.Keywords-special electric drive, the operated asynchronous cascade electric drive, energy transformation, mathematical modelling, the electromagnetic field, electromagnetic system. I.242

The research of electromagnetic parameters for improvement of efficiency of special electric drives is presented in article. The analysis of the received results was carried out. An object of a research were special electric drives with asynchronous motors of cylindrical construction. The studied special electric actuators possess improved mass-dimensional and power indicators due to constructional features and the used control systems. For different industries application of electric actuators with the seized characteristics is a relevant task. For modeling and design of special electric drives it is necessary to create new approaches for determination of electromagnetic parameters or to make significant correction of the existing approaches. On the basis of the offered mathematical model of the electromagnetic system presented in the form of set of electromagnets parameters of the studied electric drives were determined electromagnetic. The analysis of the conducted research shows that the received solution will allow to improve efficiency of the special electric drives used in difficult technological processes of different industries.

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