Discrete-continuous electromechanical control systems with passive adaptation
- 36 Downloads
Issues in constructing discrete–continuous electromechanical control systems with functions of adaptation to changes of settings that influence the parameters and motion sensor characteristics, such as speed or position of an operating element of a mechanism that has been set in motion, have been discussed. Because the adapters of such systems do not participate directly in the correction of control action of electric drivers, such systems are called “conditionally adaptive” or “systems with passive adaptation.” Generally, passive adaptation systems allow significantly reducing the sensitivity of the closed-loop control systems of electric drives to variations of its parameters. However, such systems can also perform the functions of parametric adaptation of previous filters of electromechanical control systems or information-measuring converters, solving the tasks of constructing a reference change in a coordinate of a system. In this case, zero-order holds play a key role in the processes of conversion of information on signals of additive actions of electric drivers and motion sensors to the piecewise-continuous analog or digital signals. The present work shows that zero-order holds operating in the regimes with variable frequency of information sampling allow on to significantly extend the functionality of electric drives both with respect to the quality factor of control of electric drives with variable motor drive control and with respect to savings in time in processing of measured data due to the possibilities of data compression. The generalized functional structure of passive adaptive discrete-continuous electromechanical control systems with such zero-order holds is presented. In addition, simulation results in the Matlab/Simulink environment of passively adaptive system regulating the speed of a dc electric drive with a discrete proportional–integral speed regulator and quasi-invariant system of speed control with a discrete state regulator equipped with setting devices of intensity and speed sensors with zero-order holds that confirm the effectiveness of the proposed technical solutions are presented.
Keywordselectromechanical control system discrete-continuous system management adaptation zero-order hold simulation
Unable to display preview. Download preview PDF.
- 1.Chastotnye preobrazovateli Danfoss VLT Automation Drive FC 300 (301/302). Rukovodstvo po programmirovaniyu. Versiya programmnogo obespecheniya 6.2kh (Frequency Controllers Danfoss VLT Automation Drive FC 300 (301/302). Programming Manual Ver. 6.2h), Moscow: Rossensor, 2015.Google Scholar
- 2.Bortsov, Yu.A., Polyakhov, N.D., and Putov, V.V., Elektromekhanicheskie sistemy s adaptivnym i modal’nym upravleniem (Electromechanical Systems with Adaptive and Modal Control), Leningrad: Energoatomizdat, 1984.Google Scholar
- 3.Antonov, V.N., Terekhov, V.A., and Tyukin, I.Yu., Adaptivnoe upravlenie v tekhnicheskikh sistemakh: Ucheb. posobie (Adaptive Control in Technical Systems. Student’s Book), St. Petersburg: St. Petersburg Univ., 2001.Google Scholar
- 4.German-Galkin, S.G., Matlab & Simulink. Proektirovanie mekhatronnykh sistem na PK (Matlab & Simulink. PC Mechatronic Systems Design), St. Petersburg: Korona-Vek, 2014.Google Scholar
- 5.Basharin, A.V., Novikov, V.A., and Sokolovskii, G.G., Upravlenie elektroprivodami (Electric Drives Control), Leningrad: Energoizdat, 1982.Google Scholar
- 6.Gusev, N.V. and Bukreev, V.G., Sistemy tsifrovogo upravleniya mnogokoordinatnymi sledyashchimi elektroprivodami: Ucheb. posobie (Digital Control Systems for Multichannel Slave Electric Drives. Student’s Book), Tomsk: Tomsk Polytechnical Univ., 2007.Google Scholar
- 7.Avdeev, B.Ya., Antonyuk, E.M., Dolinov, S.N., Zhuravin, L.G., Semenov, E.I., and Fremke, A.V., Adaptivnye teleizmeritel’nye sistemy (Adaptive Telemeasuring Systems), Fremke, A.V., Ed., Leningrad: Energoizdat, 1981.Google Scholar
- 9.Kazantsev, V.P., Petrochenkov, A.B., and Dadenkov, D.A., PC Software Certificate no. 2013660457, 06.11.2013.Google Scholar