摘要
通过对设计变量的敏感度分析,找到了对目标函数敏感度最大的变量,即影响目标函数的主要因素。对这些变量随时间变化情况进行拟合,用拟合后的时间变量函数代替静态模型中的固定系数,建立了考虑变量时间动态变化的全生命周期优化模型,完成了考虑变量时间动态变化的全生命周期优化。以广西木薯乙醇燃料全生命周期成本优化为案例,进行了案例分析。优化结果表明,考虑变量时间动态变化能更真实地反映最优值随时间变化而变化的关系。
The main factors that influence an objective significantly are found by the variables＇ sensitivity analysis.Considering the main factors＇ variety with the time more precisely, we find out a new way of life cycle optimization taking into account of variables＇ change with time.Fitted the variables that influence the objective significantly by time and replaced the fixed coefficients with the fitted functions, the optimization model taking into account of the variables changing with the time is set up and the optimization could be done.The life cycle cost optimization of cassava-based ethanol in Guangxi Zhuang Autonomous Region is done as a case study.The optimal results show that the new optimization way could demonstrate the optimal results＇ change with the time taking into account variables＇ change with time.
出处
《能源研究与利用》
2005年第5期1-4,共4页
Energy Research & Utilization
基金
国家自然科学基金资助项目(50175070)
关键词
时间动态变化
全生命周期
优化
dynamic change with time
life cycle
optimization
