含电转气的多能源中心协调优化运行策略

doi:10.11930/j.issn.1004-9649.202002013

中国电力 ›› 2020, Vol. 53 ›› Issue (10): 113-122.DOI: 10.11930/j.issn.1004-9649.202002013

• 区域综合能源系统规划与运行技术 • 上一篇下一篇

含电转气的多能源中心协调优化运行策略

张磊¹, 秦光宇², 刘亚玲³

1. 中国广核新能源控股有限公司，内蒙古呼和浩特 010020;
2. 华北电力大学经济与管理学院，北京 102206;
3. 中国能源研究会能源互联网专委会，北京 100000

收稿日期:2020-02-03 修回日期:2020-03-21 发布日期:2020-10-05
作者简介:张磊(1983—)，男，硕士，工程师，从事电力市场与综合能源服务项目研究，E-mail：cgnzhanglei@163.com;秦光宇(1994—)，男，通信作者，博士研究生，从事综合能源系统运行优化研究，E-mail：13263462372@163.com
基金资助:
国家社科基金重大项目(面向国家能源安全的智慧能源创新模式与政策协同机制研究，19ZDA081)；教育部哲学社会科学重大课题攻关项目(构建清洁低碳、安全高效的能源体系政策与机制研究，18JZD032)

Coordinated Optimization Operation Strategy for Multi-Energy Center with Power-to-Gas Devices

ZHANG Lei¹, QIN Guangyu², LIU Yaling³

1. China General Nuclear New Energy Holding Co. Ltd., Hohhot 010020, China;
2. College of Economic and Management, North China Electric Power University, Beijing 102206, China;
3. Energy Internet Committee of China Energy Research Association, Beijing 100000, China

Received:2020-02-03 Revised:2020-03-21 Published:2020-10-05
Supported by:
This work is surpported by National Social Science Foundation of China (Research on Smart Energy Innovation Mode and Policy Coordination Mechanism for National Energy Security, No.19ZDA081) and the 2018 Key Projects of Philosophy and Social Sciences Research, Ministry of Education of China (Research on Constructing Energy System Policy and Mechanism with Characteristics of Clean, Low-Carbon Emission, Safe and High-Efficiency, No.18JZD032)

摘要/Abstract

摘要： 电转气技术的应用使得电力网络与天然气网络实现双向闭环能量流动，可以促进间歇性清洁能源的消纳。可将电转气细分为电转氢气、氢气转天然气2个过程并加入储氢设备以更好地协调电能-氢能-天然气能三者之间的能量流动。以系统运行成本最低及最大程度接纳风电为目标，计及电转气、天然气管网、各能源设备等运行约束构建了含电转气的多能源中心协调优化运行模型。模型对天然气网络潮流的非线性约束进行了线性化处理，加入权重系数将双目标优化问题转化为单目标优化进行求解。最后为了验证所建立模型的有效性和可行性，选取了4节点的多能源网络系统进行实例仿真分析，通过调用YALMIP工具箱的分支界定法进行模型求解，并对不同权重系数下不同场景系统的运行成本及风电消纳率进行了分析，结果证明电转气在多能源中心运行中的可行性，且电转气的中间产物氢气利用需求越高，风电消纳的程度越大。

关键词: 电转气, 多能源中心, 风电消纳, 运行策略

Abstract: Application of power-to-gas (P2G) technology enables the two-way closed-loop energy flow between the power network and the natural gas network, which can promote the accommodation of intermittent clean energy. The power-to-gas process is divided in this paper into two stages: power-to-hydrogen and hydrogen-to-natural gas, and added with hydrogen storage devices to better coordinate the energy flow between power energy, hydrogen energy and natural gas energy. Aiming at the lowest operating cost and maximum wind power accommodation, a coordinated optimization operation model is constructed for multi-energy center with power-to-gas devices considering the operational constraints of power-to-gas, natural gas pipe network and various energy equipment. The model linearizes the nonlinear constraints of the natural gas network power flow, and converts the bi-objective optimization problem into single-objective optimization by adding the weight coefficient. Finally, in order to verify the feasibility and effectiveness of the established model, a four-node multi-energy network system was selected for simulation analysis. The branch definition method of YALMIP toolbox was used to solve the model, and the operating cost and wind power accommodation rate of the system were analyzed under different scenarios with different weight coefficients. The results demonstrate that the power-to-gas is feasible in operation of the multi-energy center, and the higher the utilization demand of the intermediate hydrogen gas, the greater the wind power accommodation rate is.

Key words: power to gas, multi-energy center, wind power accommodation, operation strategy

张磊, 秦光宇, 刘亚玲. 含电转气的多能源中心协调优化运行策略[J]. 中国电力, 2020, 53(10): 113-122.

ZHANG Lei, QIN Guangyu, LIU Yaling. Coordinated Optimization Operation Strategy for Multi-Energy Center with Power-to-Gas Devices[J]. Electric Power, 2020, 53(10): 113-122.

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含电转气的多能源中心协调优化运行策略

Coordinated Optimization Operation Strategy for Multi-Energy Center with Power-to-Gas Devices

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Coordinated Optimization Operation Strategy for Multi-Energy Center with Power-to-Gas Devices

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