| Since the Second Industrial Revolution,electric power has become the cornerstone in promoting industrial development,and the adequate supply of electric power has provided a solid guarantee for China’s rapid industrialization and construction of a socialist modern power.However,at present,China’s power supply mainly relies on coal-fired power generation.As the largest coal consumer,thermal power has always played a leading role in China’s power supply structure.However,coal-fired power generation has significant characteristics of high energy consumption,high pollution,and high emissions,causing significant damage to the ecological environment.The main task of the power coal supply chain is to meet the demand for coal-fired power generation of thermal power plants,including multiple links such as power coal mining,washing and processing,power coal transportation,power storage and transportation,coal-fired power generation,and ash disposal.There is huge pressure to reduce emissions.In particular,the Twentieth National Congress of the Communist Party of China has also clearly proposed the development goal of promoting low-carbon transformation of high carbon industries.The task of green transformation of industrial structure is urgent.In addition,the dual carbon goals of carbon neutrality and carbon peak are required,How to promote the low-carbon and green development of the power coal supply chain has become an important issue to be urgently solved.This article selects H Group as a typical electric coal enterprise,and conducts simulation and optimization research on the carbon emission problem of the electric coal supply chain of H Group.The main work is as follows:(1)Sorts out the literature on the electric coal supply chain,carbon emission reduction in the supply chain,and the application of system dynamics in the supply chain,summarizes the ways to promote low-carbon in the electric coal supply chain at the current stage,and designs the main framework of the carbon emission system of the electric coal supply chain based on the core idea of system engineering Research methods and technical routes;At the same time,it introduces concepts related to electric coal supply chain and carbon emissions,and specifically expounds theories and system dynamics methods such as low-carbon economy,green supply chain management,and system science.(2)The importance of key chain nodes in the electric coal supply chain was verified through TOPSIS method,and carbon emission process analysis was conducted.Based on this,system dynamics analysis was conducted to clarify the overall framework of the electric coal supply chain,determine system boundaries,and basic assumptions.The electric coal supply chain was divided into four subsystems: production,transportation,storage,and consumption.Based on clarifying the carbon emissions of each subsystem of the power coal supply chain,a causal relationship diagram and a stock flow diagram are drawn,and a dynamic model of the carbon emissions system of the power coal supply chain is constructed.At the same time,the relational expressions involved in the model and the variables therein are explained.(3)The two-stage electric coal supply chain system composed of a coal supplier and a power plant in H Group is introduced.The specific variables and parameters of the supply chain are brought into the system dynamics simulation model,and the feasibility of example selection is determined through model validity and sensitivity testing.Through simulation of the initial conditions of the power coal supply chain,the emission reduction direction of each subsystem is clarified.Starting from the level of technology investment,business management,and energy consumption structure transformation,three emission reduction schemes are set up,with a total of nine simulation scenarios.Based on the optimization results,strategies for improving carbon emissions in the power coal supply chain are proposed.The research results show that the simulation model of carbon emission system in the electric coal supply chain established in this paper can provide theoretical guidance and management experience for H Group AB’s electric coal supply chain to achieve carbon emission reduction by comparing the emission reduction effects of technology investment,business management,and energy consumption structure in different subsystems of the electric coal supply chain.At the same time,this study is of great significance for promoting the clean and efficient use of coal in power generation enterprises,accelerating the development of the power industry towards clean and efficient development,achieving low-carbon development of high carbon energy,and helping to achieve the goal of carbon peak and carbon neutrality. |