生产管理系统是制造业中最为复杂的系统之一,高级计划与排产(Advanced Planning and Scheduling以下简称APS)是其重点与难点。由于生产的复杂性与不确定性,当前企业的生产计划编制方法虽多但效果不尽人意.特别是中小企业的现行生...生产管理系统是制造业中最为复杂的系统之一,高级计划与排产(Advanced Planning and Scheduling以下简称APS)是其重点与难点。由于生产的复杂性与不确定性,当前企业的生产计划编制方法虽多但效果不尽人意.特别是中小企业的现行生产计划与排产系统尤是如此。本文以江门某塑胶丝花行业为背景,以生产计划编制为研究对象.以计划编制的优化为主要内容.结合蚁群算法、遗传算法及其混合应用等算法理论与多种数学及智能信息技术方法,对建立一个能有效提高企业生产计划编制水平的APS系统应用进行了研究。展开更多
Power transformer serves as one of the most widely used electrical equipments in power grid. During the operation, terrible losses are produced. With the development of loss reduction technology of power transformers,...Power transformer serves as one of the most widely used electrical equipments in power grid. During the operation, terrible losses are produced. With the development of loss reduction technology of power transformers, in order to save energy saving and reduce emissions, the old power transformer should be replaced. The paper summarizes the main method to reduce the losses of power transformers and brings up the improved Total Owning Cost (TOC) algorithm, which applies to 220 kV power transformers’ comprehensive benefit analysis. Using the improved Total Owning Cost (TOC) algorithm, based on today 220 kV energy-saving power transformer manufacturing level, the economic benefits of new energy-saving power transformer and the return period of investment are analyzed. Finally, combined with energy-saving effect, the appropriate replacement proposal of 220 kV power transformers has been given.展开更多
针对离散型制造企业生产能力不平衡问题,运用约束理论(Theouy of Constvains,TOC)的瓶颈识别及DBR控制方法,进行了生产能力平衡与优化研究。在理论上考虑生产准备时间和宽放系数,建立了离散型制造企业生产能力平衡优化模型,设计了模型...针对离散型制造企业生产能力不平衡问题,运用约束理论(Theouy of Constvains,TOC)的瓶颈识别及DBR控制方法,进行了生产能力平衡与优化研究。在理论上考虑生产准备时间和宽放系数,建立了离散型制造企业生产能力平衡优化模型,设计了模型求解的启发式算法,并通过实例验证了模型和算法的有效性,为离散型制造企业生产能力均衡分配和调整提供了行之有效的科学方法。展开更多
文摘生产管理系统是制造业中最为复杂的系统之一,高级计划与排产(Advanced Planning and Scheduling以下简称APS)是其重点与难点。由于生产的复杂性与不确定性,当前企业的生产计划编制方法虽多但效果不尽人意.特别是中小企业的现行生产计划与排产系统尤是如此。本文以江门某塑胶丝花行业为背景,以生产计划编制为研究对象.以计划编制的优化为主要内容.结合蚁群算法、遗传算法及其混合应用等算法理论与多种数学及智能信息技术方法,对建立一个能有效提高企业生产计划编制水平的APS系统应用进行了研究。
文摘Power transformer serves as one of the most widely used electrical equipments in power grid. During the operation, terrible losses are produced. With the development of loss reduction technology of power transformers, in order to save energy saving and reduce emissions, the old power transformer should be replaced. The paper summarizes the main method to reduce the losses of power transformers and brings up the improved Total Owning Cost (TOC) algorithm, which applies to 220 kV power transformers’ comprehensive benefit analysis. Using the improved Total Owning Cost (TOC) algorithm, based on today 220 kV energy-saving power transformer manufacturing level, the economic benefits of new energy-saving power transformer and the return period of investment are analyzed. Finally, combined with energy-saving effect, the appropriate replacement proposal of 220 kV power transformers has been given.
文摘针对离散型制造企业生产能力不平衡问题,运用约束理论(Theouy of Constvains,TOC)的瓶颈识别及DBR控制方法,进行了生产能力平衡与优化研究。在理论上考虑生产准备时间和宽放系数,建立了离散型制造企业生产能力平衡优化模型,设计了模型求解的启发式算法,并通过实例验证了模型和算法的有效性,为离散型制造企业生产能力均衡分配和调整提供了行之有效的科学方法。