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ADAPTIVE STRUCTURE ALGORITHM FOR MICROPROCESSOR CONTROL OF DC MOTORS
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| Author(s) |
I. Dumitrache; S. Dumitriu; Fl. Munteanu |
| Abstract |
In recent years the developments in VLSI technology have greatly reduced cost and improved performances of microprocessors and their peripherals. Microprocessors allow more and more the low cost implementation of sophisticated control functions and digital algorithms in industrial applications including electrical drives. In the same time, the present development of microprocessor-based control systems of electrical drives implies also a reconsideration of the classical design methods by providing new possibilities for practical implementation of optimal and adaptive control strategies. This paper describes an adaptive variable structure control algorithm for the speed control of a d.c. motor fed by a thyristor converter. This adaptive control algorithm is elaborated on the basis of a variable structure discrete-time mathematical model of the process. The control algorithm is synthesized in order to ensure an optimal behaviour - minimum settling time - in both continuous and discontinuous current modes of thyristor converter. Some implementation peculiarities of the adaptive variable structure control algorithm on a dedicated microcontroller based on standard 8080 microprocessor are emphasized. |
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| Filename: | Unnamed file |
| Filesize: | 3.118 MB |
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| Type |
Members Only |
| Date |
Last modified 2021-03-04 by System |
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