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考虑天然气压力能综合利用的微能网气-电需求响应模型
作者:
作者单位:

1.西南石油大学电气信息学院,四川省成都市 610500;2.中国石油天然气股份有限公司西南油气田分公司,四川省成都市 610051;3.英国卡迪夫大学工程学院,卡迪夫 CF24 3AA,英国

作者简介:

通讯作者:

基金项目:

国家重点研发计划资助项目(2017YFE0112600);四川省科技计划资助项目(2019YJ0279)。


Gas-Electricity Demand Response Model for Micro-energy Grid Considering Comprehensive Utilization of Natural Gas Pressure Energy
Author:
Affiliation:

1.School of Electrical Engineering and Information, Southwest Petroleum University, Chengdu 610500, China;2.Petro China Southwest Oil &3.Gas Field Company, Chengdu 610051, China;4.School of Engineering, Cardiff University, Cardiff CF24 3AA, UK

Fund Project:

This work is supported by National Key R&D Program of China (No. 2017YFE0112600) and Science and Technology Planning Project of Sichuan Province (No. 2019YJ0279).

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    摘要:

    针对天然气压力能利用模式单一及调压站冷能利用困难导致的能源利用率低等问题,提出天然气高压管网压力能发电和冷能综合利用集成方案,并针对调压站地理特性及各能源供给波动性导致的能源供应不稳定等问题,构建了天然气压力能与电、气、冷、热等多种能源相结合的微型综合能源网架构,实现其多能耦合互补;同时,通过价格型和激励型2类响应建立气-电综合需求响应模型,前者基于价格弹性矩阵建立气负荷和电负荷的需求响应模型,后者通过补贴激励的方式对天然气管网进行调峰。综合考虑该微型综合能源网的能耗成本、运维成本、环境成本及需求响应,构建考虑天然气压力能综合利用的微能网气-电需求响应优化调度模型,计算分析了不同场景下微能网电-气-冷能的优化调度结果,对所提出的集成方案及气-电需求响应模型的可行性与有效性进行了验证。

    Abstract:

    Aiming at the low energy utilization rate caused by the single utilization mode of natural gas pressure energy and the difficulty of cold energy utilization in the pressure regulating stations, this paper proposes an integrated scheme of pressure energy generation and cold energy comprehensive utilization of natural gas high-pressure pipe network. Considering the instability of energy supply caused by the geographical characteristics of the pressure regulating station, structure of a micro integrated energy grid is constructed. It combines natural gas pressure energy with various energy sources such as electricity, gas, cold and heat, to realize multi-energy coupling and complementation. Then, an integrated gas-electricity demand response model is established by introducing two types of responses, i.e., price-based demand response and incentive-based demand response. The former creates a demand response model of electricity load and gas load based on price elasticity matrix, while the latter carries out peak regulation of the natural gas pipeline network using the subsidy. Considering the energy consumption cost, operation and maintenance cost, environmental cost, and demand response of the micro integrated energy grid, an optimal dispatching model for integrated natural gas-electricity demand response of the micro-energy grid is proposed. The optimal dispatching results of electricity-gas-cold energy of the micro-energy grid in different scenarios are calculated and analyzed. The feasibility and effectiveness of the proposed integration scheme and the natural gas-electricity demand response model are also verified.

    表 2 Table 2
    图1 天然气压力能综合利用集成系统框图Fig.1 Block diagram of integrated system for comprehensive utilization of natural gas pressure energy
    图2 含天然气压力能的微能网架构Fig.2 Framework of micro-energy grid with natural gas pressure energy
    图3 天然气压力能转换为电能的特性曲线Fig.3 Characteristic curve of natural gas pressure energy converting into electric energy
    图4 需求响应前后的气/电负荷和能源价格变化Fig.4 Comparison of natural gas-electricity load and energy price with and without demand response
    图5 不同场景下的冷能优化调度Fig.5 Optimal dispatch of cold energy in different scenarios
    图 天然气压力能综合利用集成系统流程图Fig. Integrated process flow chart for comprehensive utilization of natural gas pressure energy
    表 1 不同场景下的微能网日运行费用Table 1 Daily operation expenses of micro-energy grid in different scenarios
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引用本文

张安安,冯雅婷,林冬,等.考虑天然气压力能综合利用的微能网气-电需求响应模型[J/OL].电力系统自动化,http://doi.org/10.7500/AEPS20190908003.
ZHANG An’an,FENG Yating,LIN Dong,et al.Gas-Electricity Demand Response Model for Micro-energy Grid Considering Comprehensive Utilization of Natural Gas Pressure Energy[J/OL].Automation of Electric Power Systems,http://doi.org/10.7500/AEPS20190908003.

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  • 收稿日期:2019-09-08
  • 最后修改日期:2020-01-23
  • 录用日期:2019-11-18
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