碳排放流在电力网络中分布的特性与机理分析

Analysis on Distribution Characteristics and Mechanisms of Carbon Emission Flow in Electric Power Network

碳排放流的分析与计算是基于电力网络拓扑结构而实现的。在此基础上,可以研究碳排放流在电力网络中的分布特性与机理,揭示和辨识电力系统中的高碳要素,以便进一步实现相应的优化决策。为此,文中定义了电力系统碳排放流的2种分布因子,可以清晰地表征碳排放流的分布特性。提出了3种关联矩阵的概念和定义,结合电力网络分析手段,分析了电力系统中发电机组的碳排放与流过支路、节点以及与电力负荷相对应的碳排放流的等量关联关系,揭示了碳排放流在电力系统中的产生、传输和消费的机理。提出了碳排放流关联矩阵的计算方法,用IEEE 14节点系统验证了该方法的正确性。

Topological structure of electric network is the foundation of carbon emission flow calculation and analysis. Eased on that, distribution characteristics and mechanisms of carbon emission flow in electric network can be studied and the high carbon element in power systems can be revealed and identified, in order to achieve optimized decision-making. As such, two carbon emission flow distribution factors are defined to give clear representation of carbon emission flow distribution characteristics. With the proposed concept and definition of three incidence matrices, the corresponding relationship between the carbon emission from generation units and carbon emission flow in electric network can be analyzed. Thus the mechanism of the generation, transmission and consumption of carbon emission flow in electric network is revealed. The calculation methods of carbon emission incidence matrices are also given. Taking IEEE 14-bus system for case studies, the validity of this method is proven.