Abstract
The study is based on the use of the discrete time equalizer method for the synthesis and practical implementation of an automatic speed control system of a direct current electric drive. A laboratory research bench was created to carry out experimental research. The synthesis of automatic control systems by the discrete time equalizer method differs from the traditional subordinate coordinate control or the generalized characteristic polynomial method in complete rejection of the use of the desired characteristic polynomials. This approach allows obtaining the desired dynamic and static properties of the system solely on the basis of the desired transition function, which should be close to the natural character of the transition processes (monotonic, aperiodic or oscillatory). The Code Composer Studio integrated design environment allows practical implementation of the proposed discrete time equalizers, the inverse model of the control object, and the inverse transformation modification unit in the form of special routines for the Texas Instruments TMS320F28335 microcontroller – macros in the C/C++ programming language. The main body of the control program, constructed in accordance with the developed functional diagram of macros interaction, made it possible to carry out the experimental studies using both the main control channel with one discrete time equalizer and the combined control with two discrete time equalizers (main and compensating). Since the entire program code used in the research was written in the high-level programming language C/C++ using object-oriented approaches, it is hardware independent of the microprocessor type and can be transferred easily to another hardware base
Highlights
The synthesis of regulators is one of the main problems solved in the theory of automatic control
The aim of this study is synthesizing an automatic speed control system of a drive motor based on a discrete time equalizer and its technical implementation on a laboratory research bench, which is intended for the study of direct current (DC) drives
Let us synthesize an automatic speed control system of the laboratory research bench drive motor based on a discrete time equalizer, using technical specifications and taking into account the design features of the equipment included in its composition
Summary
The synthesis of regulators is one of the main problems solved in the theory of automatic control. The widespread occurrence and introduction of computer and microcontroller technology into industrial production and minimizing the impact of human factors are some of the most significant trends in the development of modern manufacturing processes. Against this background, the programmatic assignment of the desired dynamic properties of a technical object is relevant, in which all computational work is performed by modern computing equipment without the use of standard characteristic polynomials [3]. That most computational work can be performed using the program code that, without using the theory of standard characteristic polynomials, takes into account the basic dynamic features of a real control object and gives it the desired dynamic properties. A discrete controller that provides tuning for such quantized desired transient functions is called a discrete time equalizer [4]
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