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The paper is devoted to the desired model method. It is simple and effective controller tuning method which allows tuning of conventional analog and digital controllers for controlled plants with time delay for the desired relative overshoot. Its derivation is described in detail and the detailed analysis of its properties is performed. The use of the desired model method is shown in the example.
The paper is devoted to the 2DOF PID controller tuning for integrating plants. The described approach is derived on the basis of the multiple dominant pole method. It enables to achieve a control process without overshoots. The use is shown in the examples.
The paper is devoted to design of control for mechanical systems with uncertainties. On the basis of the new approach the robust control for mechanical systems is derived. Great attention is paid to the stability of the closed-loop control system. Use is shown in the example.
The paper is devoted to the argument principle and its use for verifying of the stability, dominance of poles and to determine a dominance margin for control systems with time delay of a retarded type. Its use is shown in illustrative examples.
The paper is devoted to the design of robust control algorithms for mechanical systems. Mechanical systems have a special form of mathematical models which allows application of the modified method of aggregation of the state variables. In the paper control algorithms for robust control design are derived and their use is shown in the example.
Based on a secondary analysis of data from qualitative research of unmarried parental couples, this article explores childbearing in unmarried cohabitation from the perspective of de-standardisation and individualization of family trajectories. Drawing upon a differentiation of their situation at the moment around childbirth and their actual attitudes, it distinguishes heterogeneity of views of unmarried...
The paper shortly describes a simple controller tuning method for plants with time delay - the desired model method. On the basis of the argument principle it is shown analytically that behaviour of the control system tuned by the desired model method is determined by the pair of dominant poles.
The paper describes and gives reasons for the commonly applied procedure which allows to use analog controller tuning methods for the corresponding digital controllers. The procedure is derived for the most frequently occurring plants with time delay.
Ultimate parameters, i.e. the ultimate gain and the ultimate period have frequent use in the control technology. With the help of these parameters an appropriate controller can be tuned without knowledge of a plant mathematical model, or on the other side an approximate plant mathematical model can be determined on their basis. It is often assumed that the plant model includes time delay. The converse...
The paper is devoted to the tuning of analog and digital PI and PID controllers for the first order plus time delay plants. The described method is fully analytical. It is based on the multiple dominant pole method and compensation. The described controller tuning method makes possible to obtain a non-oscillatory control process without an overshoot for all input variables. The use is shown in the...
The paper is devoted to tuning of the PI and PID controllers with two degrees of freedom by the multiple dominant pole method. It is shown that by the corresponding tuning of the controllers with two degrees of freedom it is possible to obtain the non-oscillatory servo and regulatory step responses without overshoots. The uses are demonstrated in the examples.
The paper is devoted to the unified approach to the tuning of the digital and analog PI controllers with two-degrees-of-freedom by the multiple dominant pole method for the integrating plants with a time delay on the basis of D-transform. The approach is fully analytical and it enables tuning so that the servo and regulatory responses are non-oscillatory without overshoots. The uses are shown in the...
The paper is devoted to the tuning of the analog PI and PID controllers with two degrees of freedom by the multiple dominant pole method for first order plants with a time delay. It is shown that by corresponding the tuning of the controllers with two degrees of freedom it is possible to obtain the servo and regulatory responses without overshoots. The uses are demonstrated in the examples.
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