Shreiner R.T., Polyakov V.N., Medvedev A.V. Electromechanical resource of variable-frequency synchronous drive in intermittent modes of operation

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Abstract

Variable-frequency drive based on salient pole synchronous motor is considered in the article. The subject of research is described. A functional diagram and an integrated structural diagram of mathematical model of synchronous drive vector control system are presented. The task of the electric drive study in intermittent operational modes is formulated. Methods of synchronous drive modeling which enable to define the maximum motor temperature loads are described. The results of computer modeling of intermittent operational modes of the motor with continuous and optimal regulation of armature magnetic flux are given. The service life of the salient pole synchronous motor in respect of maximum allowable motor temperature and torque is defined. Comparative analysis of power losses in synchronous motor during operation of frequency-variable synchronous motor in intermittent modes with continuous and optimal regulation of armature magnetic flux is carried out. The conclusion is made about the efficiency of use of optimal armature magnetic flux regulation in vector control systems of synchronous drives that operate in intermittent modes.

Keywords

Synchronous electric drive, salient pole motor, intermittent operational modes, overload resource, energy saving.

Shreiner Rudolf Teodorovich – D.Sc. (Eng.), Professor, Professor of the Chair of Electrical Equipment and Automation of Industrial Enterprises, Russian State Vocational Pedagogical University, Yekaterinburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Polyakov Vladimir Nikolaevich – D.Sc. (Eng.), Senior Scientific Research Associate, Professor of the Chair of Electric Drive and Automation of Industrial Enterprises, FSAEI HPE «Ural Federal University named after the first President of Russia B.N.Yeltsin», Yekaterinburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

Medvedev Alexey Vladimirovich – post-graduate student of the Chair of Electrical Equipment and Automation of Industrial Enterprises, Russian State Vocational Pedagogical University, Yekaterinburg, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..

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