Scientific and Technical Journal


ISSN Print 2221-3937
ISSN Online 2221-3805

In order to increase the productivity of horizontal movement mechanisms, which play a significant part of the cycle in transient modes, it is necessary to reduce the time of acceleration and inhibition with a one-time solution to the problem of cargo rotation. Previously, in order to optimize the transition process, the principle of Pontryagin's maximum was used, with the help of which the control of the electric motor was implemented, which provides the minimum time of dynamic regimes and the extinction of the load of the cargo. An instantaneous change in control and the presence of a gap leads to significant loads in the kinematic gears of the mechanism when it is selected. The control of the electric motor, which uses an asynchronous motor with a short-circuit rotor and a vector-controlled frequency converter, allows you to reactivate the task and change the engine moment according to a certain law. The necessity and expediency of using an asynchronous vector electric motor for the realization control by the mechanism, which provides the minimum time of dynamic regimes and the suppression of cargo fluctuations at the end of the transition process is shown. Acceleration at a reduced speed before the main switching cycle of control influence allows you to limit the loads to allowable values, but the time of the transition process substantially collapses. When the speed is reduced to the time of the selection of the gap, the value of the dynamics decreases to 3, the transition time increases slightly. The development of the algorithm for controlling the electric motor implemented represents a stage of further research.

1. Klyuchev, V. I., and Terekhov, V. M. (1980), Electric Motor and Automation of General–Purpose Machinery [Elektroprivod i avtomatizatsiya ob–shchepromyshlennykh mekhanizmov], Moskow, Russian Federation, Energy, 360 p. (In Russian). 2. Gerasimyak, R. P., and Leshchev, V. A. (2008), Analysis and Synthesis of Crane Electromechanical Systems [Analiz i sintez kranovih elektromehanicheskih system], Odessa, Ukraine, SMIL, 192 p. (In Russian).3. Gerasimyak, R. P., and Naydenko, E. V. (2015), Loads in Kinematic Transfers Two–mass Electromechanical System During Braking [Nagruzki v kinematicheskih peredachah dvuhmassovoy elektromehanicheskoy sistemi v regime tormogenija]. Electro–technical and computer systems, Kiev, Ukraine, Vol. 1(93), pp. 15–22 (in Russian).4. Gerasimyak, R. P., and Naydenko, E. V. (2015), The kinematic transmission loads of two–mass electromechanical system with gear during braking [Dvuhmassovaja electromehanicheskaja sistema s luftom v peredache v regime tormogenija]. Electro–technical and computer systems, Kiev, Ukraine, Vol.18(94), pp. 62–68 (in Russian).5. Gerasimyak, R. P., and Naydenko, E. V. (2008), Management of asynchronous electric motor mechanisms pivot provides a reduction of dynamic loads [Upravlenie asinhrpnnim electroprivodom mehanismjv povorota, obespechivayuchee snigenie dinamicheskih nagrusok]. Problems of Automated Electric. . Theory and Practice. – Kharkiv, Ukraine, Vol. 30, pp 111– 112 (In Russian).

6. Busher, V. V., and Naydenko, E. V. (2015), Educational hardware and software layout for research two–mass electromechanical system[Uchebniy programno–apparatniy maket dlja issledovanija dvuhmassovoy electromehanicheskoy sistemi]. Electro–technical and computer systems, Kiev, Ukraine, Vol. 20 (96), pp.16–22 (in Russian).

7. Firago, B. I., and Vasilyev, D. S. (2011), The use of soft starters and braking asynchronous motors in electric crane mechanisms of movement [Primenenie ustrojstv plavnogo puska i tormogenija asinhronnih dvigatelej v elektroprivodah kranovih mehanizmov peredvigenija]. Electrical and Computer Systems, Kiev, Ukraine, Vol. 4(80), pp.30–38 (in Russian).

8. Smolyaninov, D., Palis, F., Horn, P., and Grigorov, O. W. (2002), Prior research of oscillation damping in cranes. Kranfachtangung Universität Magdeburg, pp. 113—128 (in Germany).

9. Smolyaninov, D., Horn, P., Krause, F., and Palis, F. (2003), Results of investigations of oscillation damping in cranes. Crane Symposium Technical University Dresden, pp 107–116 (in Germany).

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