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Optimal scheduling method for energy consumption in flexible flow workshop

A technology of flexible flow workshop and optimal scheduling, applied in the direction of control/regulation system, comprehensive factory control, instrument, etc.

Active Publication Date: 2017-09-26
GUANGDONG UNIV OF TECH +1
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However, productivity is not necessarily the only factor that managers consider

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  • Optimal scheduling method for energy consumption in flexible flow workshop
  • Optimal scheduling method for energy consumption in flexible flow workshop
  • Optimal scheduling method for energy consumption in flexible flow workshop

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[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0071] The invention studies two types of flexible flow shop scheduling problems related to time and order adjustment. Among them, the present invention divides the adjustment time related to the order into two types: one type of adjustment time depends on the order of the workpieces; the other type of adjustment time depends on the order of the workpieces and the machine where the workpieces are located. The workpiece is processed in each stage, and its settling t...

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Abstract

The invention discloses a flexible flow shop energy consumption optimization scheduling method which has two kinds of adjustment time and is sequence dependent. The method includes the steps: (1) establishing a mathematical model in regard to minimization of total energy consumption for a flexible flow shop scheduling problem which has two kinds of adjustment time and is sequence dependent, wherein the two kinds of adjusting time include a first kind of adjusting time related to sequence and a second kind of adjusting time related to workpiece sequence and machines that workpieces are arranged to; (2) according to the established mathematical model, generating an energy consumption cost ordering strategy based on the workpiece adjusting time and processing time to schedule the workpieces so as to obtain scheduling results enabling the total energy consumption to be least.

Description

technical field [0001] The invention relates to a method for optimizing the energy consumption of a flexible flow workshop, in particular to a method for optimizing the energy consumption of a flexible flow workshop with two types of adjustment time and order related. Background technique [0002] The classic flexible flow shop scheduling (FFS) (or hybrid flow shop scheduling (HFS)) problem has been a lot of research results. The problem has the following characteristics: each workpiece must be processed successively by a series of machines composed of parallel machines; all workpieces are ready to start processing at zero time; the adjustment time is not related to the sequence of the workpieces and is included in the processing time of the workpieces. The classic FFS scheduling problem greatly simplifies the actual problem. However, the scheduling environment in the actual production environment is much more complicated. For the needs of theoretical research and engineerin...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865Y02P90/02
Inventor 杨海东李冰黎展滔
Owner GUANGDONG UNIV OF TECH
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