1,721,346 research outputs found
Experimental evaluation of a time-optimal Plug&Control strategy
No full textIn this paper, the application of a time-optimal plug&control strategy is discussed. This strategy automatically makes the controller work properly after simply connecting it to the control architecture, without further intervention from the operator. In particular, a level control task and a temperature control task are considered. Implementation problems are addressed and the effectiveness of the methodology is shown
Control Education: TC 9.4 Developments and Vision
No full textThe covid-19 pandemic has forced all the teachers to rethink control education by exploiting modern technologies. Further, the always increasing availability of computational tools and of resources in the web is a great opportunity for both instructors and students as it facilitates the sharing of best practices and, ultimately, the implementation of personalized learning approaches. Thus, this is really an important time to discuss the future developments of control education. In this paper we outline the different initiatives and discussions of the IFAC Technical Committee 9.4 on Control Education, who has elaborated many ideas in this context. They are related to different concepts involved in the whole control education framework and it is therefore believed that they will be very useful to improve the teaching activities of the IFAC members
Book review: From plant data to process control - Ideas for process identification and PID design, by L. Wang and W. R. Cluett
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Time-optimal Plug&Control for integrating and FOPDT processes
No full textThe plug&control feature (i.e. to automatically make the controller work properly after simplyconnecting it in the control
architecture, without further intervention from the operator) is desired in industrial regulators in order to minimize the tuning effort from the user and in order to speed up the startup of the controller. In this context, a new strategyfor plug&control is proposed for integrating and first order plus dead time (FOPDT) processes. It is based on the use of three-state and PID control, and on the use of a simple least-squares based identification technique. The main advantage of the methodologyis that it is time-optimal, i.e. the process output attains the desired set-point value in minimum time, subject to the saturation limits of the actuator. Simulation
results are given to show the effectiveness of the method
Modified anti-windup scheme for PID controllers
No full textAn anti-windup scheme for proportional-integral-derivative controllers is presented. The approach is based on the combined use of back-calculation and conditional integration antiwindup techniques. In this way, the disadvantages that can hinder previously proposed strategies are overcome. Specifically, the method can guarantee a satisfactory performance for processes with different normalised dead times, without the tuning of additional parameters being required. Therefore, considering its simplicity, it is highly suitable for implementation in industrial regulators
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