在园区综合能源系统(park integrated energy system,PIES)的低碳经济调度研究中,从外网购电所带来的碳排放量难以准确估计,给PIES低碳经济调度的准确性带来了严峻的挑战。因此,文章利用外网电能的碳流密度对其隐含碳排放进行精确核算,...在园区综合能源系统(park integrated energy system,PIES)的低碳经济调度研究中,从外网购电所带来的碳排放量难以准确估计,给PIES低碳经济调度的准确性带来了严峻的挑战。因此,文章利用外网电能的碳流密度对其隐含碳排放进行精确核算,并建立了PIES低碳经济调度双层优化模型,最后在一个典型PIES中进行了算例分析。结果表明:相比于单一的PIES经济调度,所提优化模型可以在只提高4.82%运行成本的前提下,降低PIES约21.37%的碳排放量。同时,通过所提模型可以对PIES的碳流分布进行优化,消除系统的碳薄弱环节,提高PIES的环保性。展开更多
Carbon flow into soil increased due to enhanced plant production under elevated atmospheric CO 2 concentration.Rhizosphere physiological procedures deciding carbon allocation under ground has changed:Root turnover and...Carbon flow into soil increased due to enhanced plant production under elevated atmospheric CO 2 concentration.Rhizosphere physiological procedures deciding carbon allocation under ground has changed:Root turnover and root exudation increased;symboints activity,and soil microorganisms biomass enhanced,etc.But the quantity of carbon flux to soil cannot be determined exactly.展开更多
This research is aimed at the rapid development of a low-carbon economy, in which we propose the classification and application of relevant management measures to affect the development of environmental management ide...This research is aimed at the rapid development of a low-carbon economy, in which we propose the classification and application of relevant management measures to affect the development of environmental management ideas and measures of the low-carbon economy, which we called as low carbon management measures. According to scientific analysis of the lowcarbon economy, we can divide low-carbon management measures into three parts： measures for reduction of carbon sources, carbon flow planning, and increase of carbon sinks. Furthermore, we list the advantages that China can utilize to develop its own low-carbon management measures. In the end, necessary adjustments to environmental management measures in China can be made according to this scientific classification.展开更多
为提高复杂随机碳-电市场中虚拟电厂VPP(virtual power plant)的运行水平,提出考虑风险与碳流动的多虚拟电厂优化运行方法。首先,考虑到VPP内面临的多种不确定性因素,提出自适应多损失风险计算方法;然后,考虑碳-电交易的耦合性,建立考...为提高复杂随机碳-电市场中虚拟电厂VPP(virtual power plant)的运行水平,提出考虑风险与碳流动的多虚拟电厂优化运行方法。首先,考虑到VPP内面临的多种不确定性因素,提出自适应多损失风险计算方法;然后,考虑碳-电交易的耦合性,建立考虑多损失风险与碳流动的多虚拟电厂优化运行模型;接着,针对VPP内各元件贡献投入水平难以量化的问题,引入综合修正因子构建改进的加权Shapley值虚拟电厂效益分配模型。算例分析结果表明,所提方法能够兼顾经济效益与环境效益,提高分配的公平合理性。展开更多
文摘在园区综合能源系统(park integrated energy system,PIES)的低碳经济调度研究中,从外网购电所带来的碳排放量难以准确估计,给PIES低碳经济调度的准确性带来了严峻的挑战。因此,文章利用外网电能的碳流密度对其隐含碳排放进行精确核算,并建立了PIES低碳经济调度双层优化模型,最后在一个典型PIES中进行了算例分析。结果表明:相比于单一的PIES经济调度,所提优化模型可以在只提高4.82%运行成本的前提下,降低PIES约21.37%的碳排放量。同时,通过所提模型可以对PIES的碳流分布进行优化,消除系统的碳薄弱环节,提高PIES的环保性。
文摘Carbon flow into soil increased due to enhanced plant production under elevated atmospheric CO 2 concentration.Rhizosphere physiological procedures deciding carbon allocation under ground has changed:Root turnover and root exudation increased;symboints activity,and soil microorganisms biomass enhanced,etc.But the quantity of carbon flux to soil cannot be determined exactly.
基金This work was supported by the National Natural Science Foundation of China （Grant No. 70873065）.
文摘This research is aimed at the rapid development of a low-carbon economy, in which we propose the classification and application of relevant management measures to affect the development of environmental management ideas and measures of the low-carbon economy, which we called as low carbon management measures. According to scientific analysis of the lowcarbon economy, we can divide low-carbon management measures into three parts： measures for reduction of carbon sources, carbon flow planning, and increase of carbon sinks. Furthermore, we list the advantages that China can utilize to develop its own low-carbon management measures. In the end, necessary adjustments to environmental management measures in China can be made according to this scientific classification.
文摘为提高复杂随机碳-电市场中虚拟电厂VPP(virtual power plant)的运行水平,提出考虑风险与碳流动的多虚拟电厂优化运行方法。首先,考虑到VPP内面临的多种不确定性因素,提出自适应多损失风险计算方法;然后,考虑碳-电交易的耦合性,建立考虑多损失风险与碳流动的多虚拟电厂优化运行模型;接着,针对VPP内各元件贡献投入水平难以量化的问题,引入综合修正因子构建改进的加权Shapley值虚拟电厂效益分配模型。算例分析结果表明,所提方法能够兼顾经济效益与环境效益,提高分配的公平合理性。
