Electric heating comprehensive energy system optimal scheduling method considering refined heat supply network model
A technology of integrated energy system and refined heat network, applied in the direction of AC network circuit, information technology support system, resources, etc., can solve the problem of affecting the accuracy of heat network scheduling, increasing the difficulty of power flow solution, and not carefully considering the interaction of pipeline elements. And other issues
Active Publication Date: 2020-10-23
TIANJIN UNIV
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Problems solved by technology
The thermal power demand is not a directly controllable quantity. Taking it as a known quantity for power flow calculation will increase the complexity of heat network power flow calculation, increase the difficulty of power flow solution, and it is difficult to reflect the adjustable quantity of user-side heat exchange equipment in the operation link. difference, which in turn affects the accuracy of heat network scheduling
[0007] At present, there are mainly the following problems in the research on the power flow calculation of the electric heating integrated energy system: first, the dynamic process of the temperature change of the heating network pipeline
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[0232] 1. Scene setting
[0233] The structure diagram of the electric and heating integrated energy system constructed by the implementation plan is as follows Figure 4 Shown. The IEEE 33-node power grid and Bali 32-node heating network are used. The coupling elements between the power grid and the heating network are two CHP units and an electric boiler. In order to analyze the influence of different models on the results of system power flow calculations, this paper sets up four scenarios for comparative analysis. The specific conditions of the scenario settings are shown in Table 1.
[0234] Table 1 Scenario setting
[0235]
[0236] 2. The effect of refined hydraulic model on tidal current calculation results
[0237] In order to analyze the impact of the refined hydraulic model on the results of tidal current calculations, the water flow changes of the heating network under scenario 1 and scenario 2 are compared. Figure 5 Shown.
[0238] by Figure 5 It can be seen that the fl...
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The invention discloses an electric heating comprehensive energy system optimal scheduling method considering a refined heat supply network model. The method comprises the following steps: constructing a heat supply network hydraulic model considering refined resistance; constructing a thermodynamic model considering the dynamic characteristics of the heat supply network; time sequence load flow calculation of the electric heating comprehensive energy system is carried out; and optimal scheduling of the electric heating comprehensive energy system is carried out. The method can be used for transient analysis of the electric heating comprehensive energy system; the energy interaction process of different energy networks is analyzed, the economical efficiency of system operation scheduling is improved, the operation development of the comprehensive energy system is promoted, the method is suitable for determining the system operation state of the electric heating comprehensive energy system, and analysis means and other work are provided for system scheduling operation and planning construction.
Description
Technical field [0001] The invention belongs to the field of integrated energy system operation optimization, and more specifically, relates to an electric heating integrated energy system optimization dispatch method that takes into account a refined heating network model. Background technique [0002] The integrated energy system refers to the integrated system of production, supply and consumption formed through organic coordination and optimization of energy generation, conversion, storage, and consumption in the process of planning, construction, and operation. Energy is the foundation for human survival and development, and the lifeblood of the national economy. How to reduce environmental pollution in the process of energy consumption while ensuring the sustainable supply of energy for human society is a hot spot of common concern for all countries in the world today. In recent years, the world economic development has increasingly demanded energy, and the consumption of a...
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Login to view more IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06H02J3/00H02J3/06
CPCG06Q10/04G06Q10/0631G06Q10/067G06Q50/06H02J3/00H02J3/06H02J2203/10H02J2203/20Y04S10/50Y02P90/82
Inventor 刘洪赵晨晓葛少云李吉峰刘静仪
Owner TIANJIN UNIV
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