Batch process model-free deorbit strategy optimal tracking control method in packet loss environment

Abstract

The invention relates to a batch process model-free deorbit strategy optimal tracking control method in a packet loss environment, and belongs to the technical field of industrial process control, and the method comprises the following specific steps: 1, describing a two-dimensional batch process control problem in the packet loss environment; 2, constructing a packet loss model in a network environment, and introducing a two-dimensional Smith predictor with packet loss compensation; 3, designing an optimal process controller based on the model; 4, designing a two-dimensional batch process model-free deorbit strategy optimal tracking control method in a packet loss environment; and 5, performing unbiasedness and convergence analysis of the control algorithm. According to the method designed by the invention, the model dependence of a system during controller design can be greatly reduced, meanwhile, a two-dimensional Smith predictor is introduced, data packet loss compensation is effectively carried out, a deorbit strategy is adopted, sufficient data mining is ensured, and the calculation cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of industrial process control, and in particular relates to a model-free off-track strategy optimal tracking control method for a batch process in a packet loss environment. Background technique [0002] With the rapid development of computer technology, control technology and network communication technology, the integration of the three is becoming more and more close, the spatial distribution of the control system is becoming wider and wider, and the control structure is becoming more and more complex. The problem of batch process control in the environment has also attracted extensive attention of researchers in control, communication, mathematics and other disciplines. In the past, when analyzing and designing controllers for such systems, most of them were carried out under the assumption of perfect data transmission from sensors to controllers. However, in actual industrial production, due to the unr...

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Problems solved by technology

[0004] The present invention considers that in the wireless network environment, unstable data transmission and packet loss will affect system performance, and considers that the system model information is unknown, and for the two-dimensional batch process, a two-dimensional framework is proposed. The model-free derailment strategy optimal tracking control method, which can effectively solve the problem that the batch process cannot be accurately modeled, and only use the collected historical data to solve the control law, overcome the controller's dependence on the model, In addition, the Smith estimation compensation for the network transmission packet loss problem is also carried out, which is integrated into the model-free off-track strategy. After continuous learning and optimization, the optimal control law is obtained, and the upper set value is well tracked , to improve the control and tracking performance of the system

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