Optimal scheduling of an integrated electric heating energy system considering the thermal inertia of the heating network
HUANG Keyong
RAN Peng
Abstract：Existing studies often neglect the dynamic characteristics of heat-supply networks,such as time delay and heat storage,or employ computationally complex nonlinear models,which makes it difficult to efficiently integrate with the linear dispatch framework of power systems.A linear dynamic model of heat-supply network pipelines is constructed based on the analogy between heat and electricity,and it is applied to the optimal dispatch of integrated electric and thermal energy system(IEHES).Through thermoelectric comparison,the discrete nodes of the heat network pipeline are equivalent to circuit units.The Norton equivalent circuit is used to eliminate intermediate variables,and a linearized pipeline dynamic model that only depends on the temperature of the previous moment is established.On this basis,a day-ahead optimization scheduling model with the goal of minimizing the total operating cost of the system is established to fully tap the cross-time period regulation potential of the heating network as a distributed heat storage unit.The results show that compared with the traditional steady-state model,the proposed dynamic scheduling method increases the wind power consumption rate by 28.13%and reduces the total system operating cost by 8.63%.
Keywords：integrated electric heating energy systemthermoelectric comparisonthermal inertialinear dynamic model
Publication Date：2025-07-25
Online Publishing Date：2025-09-15(First online date of this platform, not the publication date of the document)
Pages：5( 31-35 )