广东工业大学 信息工程学院,广东,广州,510006
王美林(1975–),男,副教授,主要研究方向为制造物联网和工业互联网使能技术、生成过程调度与优化等
曾俊杰(1996–),男,硕士研究生,主要研究方向为动态生产调度、制造物联网等,E-mail:1277742051@qq.com
网络首发:2021-09-10,
纸质出版:2021
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王美林, 曾俊杰, 成克强, 陈晓航. 改进遗传算法求解基于MPN混流制造车间调度问题[J]. 广东工业大学学报, 2021, 38(5): 24-32.
Wang Mei-lin, Zeng Jun-jie, Cheng Ke-qiang, et al. A Research on Improved Genetic Algorithm for Flexible Job Shop Scheduling Problem Based on MPN[J]. 2021, 38(5): 24-32.
王美林, 曾俊杰, 成克强, 陈晓航. 改进遗传算法求解基于MPN混流制造车间调度问题[J]. 广东工业大学学报, 2021, 38(5): 24-32. DOI: 10.12052/gdutxb.210001.
Wang Mei-lin, Zeng Jun-jie, Cheng Ke-qiang, et al. A Research on Improved Genetic Algorithm for Flexible Job Shop Scheduling Problem Based on MPN[J]. 2021, 38(5): 24-32. DOI: 10.12052/gdutxb.210001.
大规模混流制造系统存在规模大、资源约束多的特点
造成在作业调度时产生维数灾难
从而产生搜索求解难的问题。本文针对此类问题
在基于(Manufacturing Petri Net
MPN)模型的基础上
提出一种改进遗传算法进行求解。首先
重新定义了染色体的结构
并采用染色体安排段压缩求解的搜索空间。其次
在染色体交叉环节用粒子群优化(Particle Swarm Optimization
PSO)优化机制引导染色体优化方向
在染色体变异环节用模拟退火算法(Simulated Annealing Algorithm
SAA)的机制防止遗传算法的过早收敛。然后
在每一次种群迭代后对当前最优个体采用邻域搜索机制尝试拔高最优个体的适应度。实验数据表明
改进遗传算法在求解的最优性方面有了较大改进。
The large-scale HFS (Hybrid Flow Shop) system has the characteristics of large scale and many resource constraints
which causes dimension disasters during job scheduling
which results in difficult search and solution problems. Addressing such problems
an improved genetic algorithm is proposed
based on the MPN (Manufacturing Petri Net) model
with the makespan as the optimization goal. Firstly
the structure of the chromosome is redefined
and the corresponding algorithm of chromosome arrangement segment used to compress the search space. Secondly
the particle swarm optimization (PSO) optimization mechanism is used to guide the direction of chromosome optimization in the chromosome crossover operator
and the simulated annealing algorithm (SAA) mechanism used in the chromosome mutation operator to prevent the premature convergence of the genetic algorithm
and then after each population iteration
the current maximum individual uses the neighborhood search mechanism to try to improve the fitness of the best individual. Finally
the experimental data shows that the improved genetic algorithm has made great improvements in the optimization of the solution.
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