Speed optimization of positional electric drives using the maximum principle
DOI:
https://doi.org/10.31548/energiya5(81).2025.054Abstract
The performance quality of many technological processes depends to a large extent on the inertial properties of executive devices. Positional electric drives with servomotors, which have integrating properties, are widely used as executive devices of automatic control systems. Optimizing the speed of such electric drives makes it possible to improve the quality of technological processes, reduce dynamic adjustment errors caused by the influence of the inertia of the executive device.
The maximum principle is a convenient means of determining the optimal control law as a function of phase coordinates, that is, a means of synthesizing optimal regulators in closed systems, and a function of time, that is, a means of finding optimal software controls in open systems, which are positional electric drives with relay control.
The purpose of this work is to substantiate the application of the maximum principle for the problem of optimizing the speed of positional electric drives and to find an analytical solution to this problem.
Key words: optimal control, maximum principle, electric drive, optimality criterio
References
1. Petrov Ju. P. (1977). Variacionnye metody teorii optimal'nogo upravlenija [Variational methods of optimal control theory]. Energija, 280.
2. Krotov V.F. (1996). Global methods in optimal control theory. New York, Basel, Hong Kong: Marcel Dekker Inc., 384.
3. Loveykin V. S., Romasevich Yu. O. (2010). Optimizatsiya perehidnih rezhimIv ruhu mehanichnih sistem pryamim variatsiynim metodom [Optimization of transients regim es of movement of mechanical systems with the direct variational method]. Kiyv –Nizhyn, 184.
4. Grigorov O.V., Lovejkin V.S. (1997). Optymalne keruvannia rukhom mekhanizmiv vantazhopidjomnykh mashyn [Optimal control of the movement of lifting machinery mechanisms]. Kyiv: IZMN, 264.
5. Loveykin V. S., Romasevich Yu. O. (2012). Optymizatsiya rukhu vantazhopidyomnoho krana iz traversnoyu pidviskoyu vantazhu metodom dynamichnoho prohramuvannya [Optimization of the movement of a crane with a traverse suspension of the load using the dynamic programming method]. Mechanical engineering, 10, 15-32.
6. Shurub Yu. V. (2017). Statystychna optymizatsiya chastotno rehulʹovanykh asynkhronnykh elektropryvodiv pry skalyarnomu keruvanni [Statistical optimization of frequency regulated induction electric drives with scalar control]. Electrical Engineering & Electromechanics, 1, 26–30. https://doi.org/10.20998/2074-272X.2017.1.05
7. Grigorov O.V., Petrenko V.S. (2005). Vantazhopidjomni mashyny [Lifting machines]. Kharkiv, Ukraine: NTU „KhPI”, 304.
8. LoveykIn V. S., Romasevich Yu. O. (2016). Dinamika i optimizatsiya rezhimiv ruhu mostovih kraniv [Dynamics and optimization of traffic overhead cranes]. Kyiv: TsP KOMPRINT, 314.
9. Kliuchev V.I. (2001). Teoria elektroprivoda [Theory of electric drive]. Moskow: Energoatomizdat, 704.
10. Golovinskyi B.L., Shurub Yu.V., Lysenko V.P. (2012). Teoria avtomatychnogo upravlinnia [Theory of automatic control]. Kyiv: NUBIPU, 240.
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