为了进一步降低园区综合能源系统(park-level integrated energy system,PIES)碳排放量,优化热电联产(combined heat and power,CHP)机组出力的灵活性,提出一种考虑改进阶梯型碳交易和CHP热电灵活输出的PIES低碳经济调度策略。首先,将...为了进一步降低园区综合能源系统(park-level integrated energy system,PIES)碳排放量,优化热电联产(combined heat and power,CHP)机组出力的灵活性,提出一种考虑改进阶梯型碳交易和CHP热电灵活输出的PIES低碳经济调度策略。首先,将遗传算法与模糊控制相结合,设计一种遗传模糊碳交易参数优化器,从而对现有阶梯型碳交易机制进行改进,实现该机制参数的自适应变化;其次,在传统CHP中加入卡琳娜(Kalina)循环与电锅炉(electricboiler,EB),构造CHP热电灵活输出模型,以同时满足电、热负荷的不同需求;然后,提出一种柔性指标——电、热输出占比率,进而计算出电、热输出占比率区间,以衡量CHP运行灵活性;最后,将改进阶梯型碳交易机制和CHP热电灵活输出模型协同优化,以系统运行成本和碳交易成本之和最小为目标,构建PIES低碳经济优化模型。算例分析表明,所提策略可有效降低经济成本和碳排放量,同时还可扩展CHP灵活输出调节范围,能够为PIES低碳经济调度提供参考。展开更多
本文以人民城市理念为指引,梳理了天津市在城市基础设施配套建设管理体制方面的改革政策及其实施情况,总结了改革政策实施五年来,新的工作机制、管理机制在推动城市基础设施建设等方面取得的成效。同时对近年来城市基础设施建设工作中...本文以人民城市理念为指引,梳理了天津市在城市基础设施配套建设管理体制方面的改革政策及其实施情况,总结了改革政策实施五年来,新的工作机制、管理机制在推动城市基础设施建设等方面取得的成效。同时对近年来城市基础设施建设工作中面临的新情况、新问题也做了总结并分析了其原因。在此基础上,结合继续深化完善改革政策的必要性,从优化审批机制、完善资金保障等方面进行了深化改革的对策研究,提出了相应对策建议。This paper, guided by the concept of people’s city, combs through the reform policies and their implementation regarding the management system of urban infrastructure supporting construction in Tianjin, summarizes the achievements made by the new working and management mechanisms in promoting urban infrastructure construction over the past five years since the implementation of the reform policies. Meanwhile, it also summarizes the new circumstances and problems faced in urban infrastructure construction work in recent years and analyzes the causes. On this basis, considering the necessity of continuously deepening and improving the reform policies, it conducts countermeasure research on deepening the reform from aspects such as optimizing the approval mechanism and perfecting the capital guarantee and puts forward corresponding countermeasure suggestions.展开更多
文摘为了进一步降低园区综合能源系统(park-level integrated energy system,PIES)碳排放量,优化热电联产(combined heat and power,CHP)机组出力的灵活性,提出一种考虑改进阶梯型碳交易和CHP热电灵活输出的PIES低碳经济调度策略。首先,将遗传算法与模糊控制相结合,设计一种遗传模糊碳交易参数优化器,从而对现有阶梯型碳交易机制进行改进,实现该机制参数的自适应变化;其次,在传统CHP中加入卡琳娜(Kalina)循环与电锅炉(electricboiler,EB),构造CHP热电灵活输出模型,以同时满足电、热负荷的不同需求;然后,提出一种柔性指标——电、热输出占比率,进而计算出电、热输出占比率区间,以衡量CHP运行灵活性;最后,将改进阶梯型碳交易机制和CHP热电灵活输出模型协同优化,以系统运行成本和碳交易成本之和最小为目标,构建PIES低碳经济优化模型。算例分析表明,所提策略可有效降低经济成本和碳排放量,同时还可扩展CHP灵活输出调节范围,能够为PIES低碳经济调度提供参考。
文摘本文以人民城市理念为指引,梳理了天津市在城市基础设施配套建设管理体制方面的改革政策及其实施情况,总结了改革政策实施五年来,新的工作机制、管理机制在推动城市基础设施建设等方面取得的成效。同时对近年来城市基础设施建设工作中面临的新情况、新问题也做了总结并分析了其原因。在此基础上,结合继续深化完善改革政策的必要性,从优化审批机制、完善资金保障等方面进行了深化改革的对策研究,提出了相应对策建议。This paper, guided by the concept of people’s city, combs through the reform policies and their implementation regarding the management system of urban infrastructure supporting construction in Tianjin, summarizes the achievements made by the new working and management mechanisms in promoting urban infrastructure construction over the past five years since the implementation of the reform policies. Meanwhile, it also summarizes the new circumstances and problems faced in urban infrastructure construction work in recent years and analyzes the causes. On this basis, considering the necessity of continuously deepening and improving the reform policies, it conducts countermeasure research on deepening the reform from aspects such as optimizing the approval mechanism and perfecting the capital guarantee and puts forward corresponding countermeasure suggestions.
