| Energy is an important guarantee factor for social development and economic growth,and energy system planning is a key content of energy management.With the continuous development of the regional economy,increasing energy consumption requires continuous energy supply as support and guarantee.Constrained by factors such as resource endowment in some regions,imbalance in the spatial distribution of energy,and excess capacity of new energy sources,it is necessary to rely on energy transmission to optimize the energy supply and demand balance between regions and achieve sustainable regional development.The work of this article is as follows:First,this article reads a number of domestic and foreign references,sorts out the research status of energy supply and demand relations,energy system planning,multi-energy network transmission process,and energy system dynamics at home and abroad,and lays a theoretical foundation for the subsequent work;Analyze the motivation of energy transmission from the perspective of China’s energy strategic layout adjustment and regional economic development needs,and analyze the regional energy transmission trend from the perspective of energy distribution;From the perspectives of economic benefits,environmental impacts,and energy consumption,the impact of power transmission and coal transportation on the region is analyzed.Secondly,this paper analyzes the transmission constraints that regional energy sources face when they reach a state of supply and demand equilibrium.External factors include economic,social,and policy orientations.Internal factors include energy resources,prices,and transportation.This paper takes these factors as input variables to construct a regional energy supply-demand balance model;First,construct a causality circuit diagram to clarify the logical relationship between each factor and the causal transmission relationship.Then use the flowchart to build a model,assign and define various variables in the system.Finally,the regional coal supply and demand relationship,power supply and demand relationship,and price changes are predicted,and simulation results are obtained.Then,the sensitivity analysis is performed on the model with coal supply increase,economic output value increase,and transmission capacity increase as sensitive factors.For a more in-depth analysis of the region,see energy supply and demand allocation.Finally,this paper takes the minimum comprehensive cost of power generation in the planning year as the target condition,and takes the power demand,power generation capacity,wind power installed capacity,transmission capacity,power generation fuel consumption and price constraints as constraints.A planning and optimization model for the coordinated development of multi-type generating units and regional power grids has been constructed.By optimizing and coordinating the construction capacity of the power supply and the grid,not only avoiding the waste of resources caused by the uncoordinated power transmission and grid construction,but also improving the comprehensive utilization of energy and ensuring the development of optimal allocation of resources between regions. |
