张亚超, 谢仕炜, 朱蜀. 多区域互联电-气耦合系统分散协调分布鲁棒优化调度[J]. 电力系统自动化, 2022, 46(19): 31-42.
引用本文: 张亚超, 谢仕炜, 朱蜀. 多区域互联电-气耦合系统分散协调分布鲁棒优化调度[J]. 电力系统自动化, 2022, 46(19): 31-42.
ZHANG Yachao, XIE Shiwei, ZHU Shu. Decentralized Coordinated Distributionally Robust Optimal Scheduling of Multi-area Interconnected Electricity-Gas Coupling System[J]. Automation of Electric Power Systems, 2022, 46(19): 31-42.
Citation: ZHANG Yachao, XIE Shiwei, ZHU Shu. Decentralized Coordinated Distributionally Robust Optimal Scheduling of Multi-area Interconnected Electricity-Gas Coupling System[J]. Automation of Electric Power Systems, 2022, 46(19): 31-42.

多区域互联电-气耦合系统分散协调分布鲁棒优化调度

Decentralized Coordinated Distributionally Robust Optimal Scheduling of Multi-area Interconnected Electricity-Gas Coupling System

  • 摘要: 电力、天然气等异质能流的深度耦合和互补协调,使得面向可再生能源消纳的多区域互联电-气耦合系统成为未来能源互联网发展的重要方向。在此背景下,综合考虑风电出力、燃气机组耗气量及配电网间联络线交互能流等多重不确定因素,提出基于多主体自治决策的多区域综合能源系统分散协调优化调度框架。首先,针对配电网,建立基于风电出力模糊集的分布鲁棒优化调度模型,并结合对偶理论和线性决策规则将该半无限优化问题转化为线性规划问题。其次,建立天然气网的二阶锥规划模型,并根据燃气机组耗气量不确定集检验其在配电网中备用配置的可行性。然后,分析多区域互联系统中能量流的解耦机制,采用一种基于平行正则化的交替方向乘子法对多区域电-气耦合系统分散协调调度模型进行求解。最后,通过算例验证了所提模型及求解方法的有效性和实用性。

     

    Abstract: The deep coupling and complementary coordination of heterogeneous energy flows such as electricity and natural gas hare made the multi-area interconnected electricity-gas coupling system for renewable energy consumption become an essential direction for the development of Energy Internet in the future. In this context, comprehensively considering the multiple uncertain factors such as wind power output, gas consumption of gas-fired units and the interaction energy flow through tie-lines between distribution networks, a decentralized coordinated optimal scheduling framework based on the multi-agent autonomous decision for the multi-area integrated energy system is proposed. Firstly, a distributionally robust optimal scheduling model based on the ambiguity set of wind power output is established for the distribution network. Combined with duality theory and linear decision rules, the above semi-infinite optimization problem is transformed into a linear programming problem. Secondly, the second-order cone programming model for gas network is built, and according to the uncertain set of gas consumption for gas-fired units, the feasibility of its reserve configuration in the distribution network is tested. Then, the decoupling mechanism of energy flows in multi-area interconnected system is analyzed and an alternative direction method of multipliers based on parallel regularization is developed to solve the decentralized coordinated scheduling model for multi-area electricity-gas coupling system. Finally, the case results demonstrate the effectiveness and practicability of the proposed model and solution method.

     

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