Steelmaking-continuous casting production operation plan and real-time dispatching optimization method and system based on mixed intelligent optimization algorithm

Abstract

The invention provides a steelmaking-continuous casting production operation plan and a real-time dispatching optimization method and a system based on a mixed intelligent optimization algorithm. The method comprises the following steps: establishing a production operation plan and an original dispatching proposal by the mixed intelligent optimization algorithm according to a production batch plan; detecting the perturbation in the production process through the established real-time data and a human-computer interaction interface; adopting the mixed intelligent optimization algorithm for remaking the plan on operating plans and unoperated plans; classifying the main perturbation in the production process; and establishing processing mechanisms corresponding to each kind of perturbation. The invention provides the re-planning and re-dispatching functions under the condition of changed production environment, and brings convenience for dispatching personnel to regulate the dispatching proposals according to personnel experience. The method considers the possible conflicts between equipment and the furnace sequence during the generation of the production operation plan and the dispatching proposal, so the calculation results are feasible. Because of the real-time dispatching function, the model method has strong system self organization performance, good adaptability and good universality.

Description

technical field [0001] The invention belongs to the field of information technology and relates to an intelligent optimization algorithm, in particular to a steelmaking-continuous casting production operation planning and real-time scheduling optimization method and system based on a hybrid intelligent optimization algorithm. Background technique [0002] Steelmaking-continuous casting is a key process in steel production, and its production process has the characteristics of multiple, multi-level, multi-scale, open, nonlinear, far from equilibrium, dynamic and orderly complex systems. The steelmaking-continuous casting production operation plan is based on the production batch plan, takes the heat as the planning unit, and determines the processing path of the heat, as well as the station selection and operation time in each process under the constraints of the process and equipment. . Steelmaking-continuous casting production scheduling is to arrange the processing equipm...

AI Technical Summary

Problems solved by technology

[0003] At present, the steelmaking-continuous casting production operation planning and real-time scheduling of most domestic iron and steel enterprises still adopt manual compilation and manual telephone scheduling. In the production process, enterprises often face complex production environments such as urgent orders, production plan changes, and production equipment failures, which increase the difficulty of scheduling problems

At the same time, the manufacturing execution system of the enterprise lacks the real-time supervision function of production planning and scheduling. In case of abnormality, it lacks the function of abnormal early warning and automatic re-planning, making production operation planning and scheduling one of the bottlenecks of enterprise development.

[0004] Currently published patent applications, such as CN1556487A (a hierarchical coordination planning and scheduling method for iron and steel production) system is composed of a host computer and a lower computer, the upper computer is used to optimize the overall goal, and the lower computer assigns the optimization target, and the lower computer is based on On-site practice, optimize the production plan of each process, realize the connection between the overall and local goals through the upper and lower computers, and optimize the local goals. Optimal design; CN101105842A (method for real-time matching and dynamic scheduling of tapping plan in steel MES) realizes real-time matching and dynamic re-scheduling of tapping plan, after the error between operation plan and actual production performance reaches a certain threshold, the tapping plan model is Online adjustment and rescheduling, giving suggestions for production adjustments, and generating new tapping plans. The threshold selection of this invention has a great impact on performance. At the same time, its rescheduling is a suggestion for plan adjustments, and the automatic rearrangement of operation plans has not been realized.

CN1614618A (an on-line dynamic scheduling method for steelmaking and continuous casting production) provides an online dynamic scheduling method, through production real-time data and scheduling personnel settings, using scrolling search optimization to compile a dynamic operation plan suitable for the current production status, and Real-time delivery to workstations, this invention realizes the connection between scheduling and real-time status, but its scrolling search algorithm has restrictions on the number of furnaces to avoid conflicts

CN101261695A (a kind of real-time dynamic rescheduling method of process industry production scheduling system) proposes a rescheduling scheme based on real-time monitoring and rolling optimization. The rolling optimization method needs to calculate the change of the system state from the start of scheduling to the time when the disturbance occurs, but No specific application specified

CN101520656A (a multi-mode time optimal scheduling method for steelmaking and continuous casting production line) uses the difference between actual production performance and set parameters as the basis for rough scheduling, and on the basis of rough scheduling, performs time optimal scheduling mode matching, and gives a new The scheduling plan, but does not include disturbances such as equipment and plan changes, and only adjusts the working time of each station according to the target

CN1556486A (an integrated online planning and scheduling system and method for the production process of iron and steel enterprises) formulates the production plan through the method of reservation plan-simulation software simulation-adjustment plan, and uses the method of combining model calculation and rule reasoning to carry out online production scheduling. The method The existing simulation scheduling software and algorithm library are used, and the pertinence of the solution is limited

CN1753010A (classified modeling and rolling solution method for energy optimization scheduling in iron and steel enterprises) conducts scheduling research on energy flow in iron and steel enterprises, establishes energy equipment and pipe network models, and uses event-driven rolling optimization strategy for calculation, without considering energy The heat factor in the transmission is limited to a certain extent in guiding the production

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