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含天然气压力能利用的综合能源系统优化调度模型
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.智能电网教育部重点实验室,天津大学,天津市 300072

摘要:

天然气压力能的不确定性与其管网负荷随机波动性,限制了综合能源系统中压力能利用效率的提高。提出一种天然气调压站压力能发电与制冷的综合利用模式及系统架构。首先,为解决天然气管网流量波动导致压力能不稳定、供需不平衡的问题,通过研究调压站综合能源系统中的压力与负荷不确定性因素,分析压力能不确定性及综合能源系统与调压站集成系统相关性对综合能源系统优化调度影响,确立综合能源系统不确定性因素与模型。然后,在此基础上,将气体作为冷能传输介质,考虑气、冷、热不同能量的传输特性,分析该系统分时间尺度能量平衡关系,并兼顾经济性与低碳性建立含天然气调压站的综合能源系统优化调度模型,进而采用混合整数非线性规划法进行求解。最后,通过某实际调压站综合能源系统验证了所提优化调度模型的可行性与有效性。

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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);四川省科技计划2020区域创新项目(2020YFQ0038)。

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作者简介:


Optimal Dispatching Model of Integrated Energy System Containing 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 & Gas Field Company, Chengdu 610051, China;3.Key Laboratory of the Ministry of Education on Smart Grids, Tianjin University, Tianjing 300072, China

Abstract:

The uncertainty of pressure energy of natural gas and the random fluctuation of pipeline network load limit the improvement of pressure energy utilization efficiency in the integrated energy system (IES). This paper proposes a comprehensive utilization mode and system architecture of pressure energy power generation and refrigeration for natural gas pressure regulating stations. Firstly, in order to solve the pressure energy instability and the imbalance between supply and demand caused by the fluctuation of natural gas pipeline network flow, the pressure and load uncertainties in the IES of the pressure regulating station are studied to analyze the impact of uncertainty of pressure energy and the relationship between the IES and the integrated system of pressure regulating station on optimal dispatching of IES. The uncertain factors and models of the IES are established. Secondly, on this basis, gas is used as the cold energy transmission medium, and considering the transmission characteristics of different energies of gas, cold, and heat, the energy balance relationship of the system in different time scales are analyzed, and the economic and low-carbon properties are taken into account to establish the optimal dispatching model of the IES containing natural gas pressure regulating stations. The station is solved by the mixed integer nonlinear programming method. Finally, the feasibility and effectiveness of the proposed optimal dispatching model are verified through the IES of an actual pressure regulating station.

Keywords:

Foundation:
This work is supported by Foundation:National Key R&D Program of China (No. 2017YFE0112600), Science and Technology Planning Project of Sichuan Province (No. 2019YJ0279), and Sichuan Science and Technology Plan 2020 Regional Innovation Project (No. 2020YFQ0038).
引用本文
[1]张安安,冯雅婷,黄璜,等.含天然气压力能利用的综合能源系统优化调度模型[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20200730005.
ZHANG An’an, FENG Yating, HUANG Huang, et al. Optimal Dispatching Model of Integrated Energy System Containing Utilization of Natural Gas Pressure Energy[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20200730005.
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  • 收稿日期:2020-07-30
  • 最后修改日期:2021-01-05
  • 录用日期:2020-12-14
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