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An Optimal Scheduling Method for Electric-Heat Multi-energy Flow System Based on Heating Phasor Model

A technology of heating system and scheduling method, applied in data processing applications, forecasting, instruments, etc., can solve problems such as complex energy systems and increased complexity of multi-energy flow systems, so as to improve energy efficiency, reduce operating costs, and improve The effect of accuracy

Active Publication Date: 2022-04-08
TSINGHUA UNIV
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Problems solved by technology

[0003] On the one hand, the multi-energy flow system has considerable benefits, on the other hand, it also makes the original complex energy system more complicated
The multi-energy flow system is composed of multiple energy flow subsystems. The interaction and influence between these energy flow subsystems makes the complexity of the multi-energy flow system significantly increased, reflecting many new characteristics. The traditional method of analyzing each energy flow separately It has been difficult to adapt to the new requirements, and it is urgent to develop a new multi-energy flow analysis method

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  • An Optimal Scheduling Method for Electric-Heat Multi-energy Flow System Based on Heating Phasor Model
  • An Optimal Scheduling Method for Electric-Heat Multi-energy Flow System Based on Heating Phasor Model
  • An Optimal Scheduling Method for Electric-Heat Multi-energy Flow System Based on Heating Phasor Model

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Embodiment Construction

[0053] The electric-thermal multi-energy flow system optimization scheduling method based on the heating phasor model proposed by the present invention includes the following steps:

[0054] (1) Convert the load power of the heating system in the electric-thermal multi-energy flow system into a phasor form, and its expression is as follows:

[0055]

[0056]

[0057]

[0058] Among them, the superscript HL is the identification of heat load, is the thermal power phasor when the frequency of the i-th heat load in the heating system is kΩ, For the i-th heat load in the heating system at the scheduling time τ w Ω is the fundamental frequency of the phasor, K is the order of the fundamental frequency of the phasor, and the value of K is equal to the number of dispatching time, and satisfying KΩ=24 hours, the number of dispatching time is based on the electric-thermal multi-energy flow System optimization scheduling accuracy setting, in one embodiment of the present in...

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Abstract

The invention relates to an optimal scheduling method for an electric-thermal multi-energy flow system based on a heat supply phasor model, and belongs to the technical field of power grid operation and control with multiple energy forms. The method of the present invention considers the mutual influence of the electric-thermal system, establishes a constraint equation in the phasor form of the heating system, considers the dynamic characteristics of the heating system, and realizes the optimal scheduling of the electric-thermal multi-energy flow system. Compared with the existing traditional models for optimal scheduling of electric-thermal multi-energy flow systems, the phasor model can more accurately describe the dynamic characteristics of the heating system, thereby improving the accuracy of scheduling results for electric-thermal multi-energy flow systems. The method of the invention can be applied to the formulation of dispatching plans for electric-thermal multi-energy flow systems, which is beneficial to improving the energy efficiency of the electric-thermal multi-energy flow systems, increasing the accuracy of dispatching plans, and reducing operating costs.

Description

technical field [0001] The invention relates to an optimal scheduling method for an electric-thermal multi-energy flow system based on a heat supply phasor model, and belongs to the technical field of power grid operation and control with multiple energy forms. Background technique [0002] The comprehensive utilization of energy is an important way to improve the efficiency of comprehensive energy utilization and promote the consumption of renewable energy. By breaking the original state of relatively fragmented energy flow subsystems such as electricity, heat, cooling, gas, and transportation, the open interconnection of multiple types of energy is realized, and the construction of Multi-energy flow system. Multi-energy flow refers to various types of energy flow, representing the mutual coupling, conversion and transmission of energy flows such as electricity, heat, cold, air, and transportation. Compared with traditional energy systems that are separated from each other...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06G05B13/0235G05B19/042G05B2219/2639
Inventor 孙宏斌郭庆来王彬陈瑜玮潘昭光
Owner TSINGHUA UNIV
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