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Comprehensive energy system optimization method considering characteristics of natural gas pipe network and heat supply pipe network

A technology for integrated energy systems and natural gas pipeline networks, applied in system integration technology, information technology support systems, calculations, etc., can solve problems such as optimization methods for integrated energy systems that do not take into account both natural gas and heat pipeline networks

Active Publication Date: 2019-10-18
STATE GRID ZHEJIANG ELECTRIC POWER +1
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AI Technical Summary

Problems solved by technology

For the planning of integrated energy systems with multiple energy centers, some studies have considered natural gas pipeline networks or thermal pipeline networks, and there is no research on the optimization method of integrated energy systems that takes into account the characteristics of natural gas and thermal pipeline networks.

Method used

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  • Comprehensive energy system optimization method considering characteristics of natural gas pipe network and heat supply pipe network
  • Comprehensive energy system optimization method considering characteristics of natural gas pipe network and heat supply pipe network
  • Comprehensive energy system optimization method considering characteristics of natural gas pipe network and heat supply pipe network

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Experimental program
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Embodiment

[0128] This embodiment is a comprehensive energy system planning method that takes into account the characteristics of the natural gas pipeline network and the heat pipeline network, which includes the following steps:

[0129] Step 1. Build the energy center equipment model

[0130] The structure of building the energy center is as follows: figure 1 As shown, including multi-energy flow coupling devices and energy storage devices. The energy center is abstracted as an input-output dual-port network model. In the model, various energy flows are input and output from two ports respectively. The input and output ends of multi-energy flow coupling devices and energy storage devices can be regarded as converge to the same point.

[0131] 1) Multi-energy flow coupling equipment

[0132] The multi-energy flow coupling equipment inside the energy center plays the role of an energy converter, and through its internal electricity, gas, and heat multi-energy flows complement each oth...

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Abstract

The invention discloses a comprehensive energy system optimization method considering characteristics of a natural gas pipe network and a heat supply pipe network. The invention discloses a comprehensive energy system optimization method. The method comprises the following steps: 1) constructing an energy center equipment model containing multi-energy flow coupling equipment and energy storage equipment; 2) constructing an energy network model containing a power network, a natural gas pipe network and a heat supply pipe network; and 3) taking the minimum total cost in the operation period of the comprehensive energy system as an optimization target, considering the construction constraint and the operation constraint of the comprehensive energy system, and establishing a comprehensive energy system optimization model considering the characteristics of the natural gas pipe network and the heat supply pipe network. A technical scheme of comprehensive energy system collaborative planningcan be provided, and the comprehensive energy utilization rate is improved while the system flexibility is enhanced.

Description

technical field [0001] The invention relates to the field of electric power system optimization, in particular to a comprehensive energy system optimization method considering the characteristics of natural gas pipeline network and thermal power pipeline network. Background technique [0002] The increasingly severe situation of energy sustainable development has prompted countries to break the existing mode of separate planning and independent operation of each energy system, and carry out research on the comprehensive utilization of multi-energy flows. The coordination and cooperation of multiple energy systems in the stages of planning, design, construction, and operation can promote the complementarity of multiple energy flows, promote the consumption of renewable energy, improve the overall efficiency of energy utilization, and enhance the flexibility of the energy system. The energy center abstracts the multi-energy flow coupling devices and energy storage devices in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 孙可郑伟民李志强张利军徐晨博孙轶恺王蕾邹波袁翔王一铮薛友文福拴
Owner STATE GRID ZHEJIANG ELECTRIC POWER
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