Discrete analysis Theory and Calculation Method of Carbon Flow Distribution in Power System Considering the Contribution of New Energy Consumption

Abstract

Clarifying the rights and responsibilities of carbon emissions and establishing a carbon flow analysis theory and method system for zero-carbon evolution is the basis for the lowcarbon transformation of the power system. From the perspective of load contribution to new energy consumption, this paper proposes a time-space coupled discrete analysis method for carbon flow distribution in power systems. First of all, a basic discrete analysis theory of carbon flow distribution suitable for multi-period, process-oriented, and real-time evaluation is established, and carbon emission responsibility allocation is extended from a single time section to multiple continuous time sections. Secondly, considering the space-time coupling characteristics of power supply and load in a period, a calculation algorithm for the synchronization rate of load and new energy output is proposed. Finally, based on the synchronization rate, a carbon emission responsibility allocation mechanism and allocation model that takes into account the contribution of new energy consumption are established to realize the traceability of carbon emissions and the solution of carbon emissions of nodes and lines. The results of the calculation example show that the discrete analysis theory and calculation method proposed in this paper can achieve the system power flow balance and carbon balance.