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| A Rescheduling Method for Operation Time Delay Disturbance in Steelmaking and Continuous Casting Production Process |
| YU Sheng-ping,PAN Quan-ke |
| State Key Laboratory of Synthetical Automation for Process Industries, Northeastern University,Shenyang 110819, Liaoning, China |
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Abstract In the steelmaking and continuous casting (SMCC) production process, operation time delay may lead to casting break or processing conflict so that the initial scheduling plan becomes unrealizable. Existing research methods are difficult to guarantee the accuracy of the model and successful application to actual applications. The rescheduling problem in response to operation time delay is firstly analyzed. This is then followed by the establishment of a novel multi-objective nonlinear programming model (MONPM). In specifications, a three-stage rescheduling method is proposed including the batches splitting (BS), forward scheduling method (FSM) and backward scheduling method (BSM). As a result, the real-time application shows that the proposed rescheduling method efficiently ensures the continuous casting and dramatically shortens the redundant waiting time for molten steel in very short rescheduling time.
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Received: 27 May 2012
Published: 27 December 2012
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| Fund:973 plan preliminary study program;111 Project |
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Corresponding Authors:
Sheng-Ping YU
E-mail: spyu@mail.neu.edu.cn
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2012, Vol. 19 
