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Optimizing and dispatching method of energy consumption of flexible flow shop with associated adjustment time and sequence

A flexible flow workshop and time-adjusting technology, which is applied in the energy industry, program control, climate sustainability, etc., to achieve the effect of optimizing energy consumption and saving costs

Inactive Publication Date: 2015-03-04
GUANGDONG UNIV OF TECH
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However, productivity is not necessarily the only factor that managers consider

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[0055] 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.

[0056] A method for optimizing the scheduling of energy consumption in flexible flow workshops related to time and sequence adjustments, comprising the following steps:

[0057] S1. Research on the flexible flow shop scheduling problem related to adjustment time and order, in which the adjustment time is defined as two types: one is related to the order of workpieces, and the other is related to the order of workpieces and machines;

[0058] The present invention s...

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Abstract

The invention discloses an optimizing and dispatching method of energy consumption of a flexible flow shop with associated adjustment and sequence. The method comprises the following steps: S1, searching on the dispatching problem of the flexible flow shop having adjustment time associated with sequence, wherein the adjustment time is defined into one associated with workpiece sequence and the other one associated with workpiece sequence and machines; S2, establishing the following mathematic models; S3, using the minimum overall energy consumption as a target and providing three heuristics algorithms with respect to a problem existing in the problems resolved with an NEH algorithm; S4, verifying the above three algorithms, providing two lower bounds of the problem and designing one simulation experiment based on a split block experiment; S5, analyzing factors, algorithms, lower bounds and CPU operational time according to the simulation results. According to the optimizing and dispatching method of energy consumption of the flexible flow shop with associated adjustment and sequence, the energy consumption is optimized and the cost is saved.

Description

technical field [0001] The invention relates to a method for optimizing energy consumption of a flexible flow workshop, in particular to a method for optimizing energy consumption of a flexible flow workshop that adjusts time and order. Background technique [0002] The classic flexible flow shop scheduling (FFS) (or hybrid flow shop scheduling (HFS)) problem has 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 order of the workpieces and is included in the processing time of the workpieces. [0003] The classic FFS scheduling problem greatly simplifies the actual problem. The scheduling environment in the actual production environment is much more complicated. For the needs of theoretical research and engineering practice, researchers have proposed va...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B19/41865Y02P80/10
Inventor 杨海东黎展涛杨碧霞
Owner GUANGDONG UNIV OF TECH
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