Research on Demand Response Based on the Locational Marginal Prices in the Integrated Electricity and Natural Gas System

Author(s):  
Mengjie Guo ◽  
Zheng Yan ◽  
Yun Zhou ◽  
Wenchao Jiang
Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5554
Author(s):  
Jiandong Duan ◽  
Fan Liu ◽  
Yao Yang ◽  
Zhuanting Jin

Aiming at the problem of insufficient flexibility of the power system caused by large-scale wind power grid integration, a flexible economic dispatch model of the electricity-gas integrated system that considers power-to-gas and demand responses is proposed. First, it elaborates on the scheduling flexibility and demand response model. Secondly, the power system and the natural gas system are regarded as different stakeholders; with the goal of minimizing their respective operating costs, a two-tier distributed coordination optimization model of electricity and gas system is established. In order to achieve the coordination and optimization of the upper and lower systems, slack variables are introduced to describe the infeasible part of the power system scheduling results in the natural gas system and are used for interactive iterative solution of the model. The numerical results of the revised IEEE 30-node power system and 10-node natural gas system illustrate the effectiveness and necessity of the proposed model, as well as the superiority of comprehensively considering power-to-gas and demand response in improving the flexibility and economy of the power system.


2019 ◽  
Vol 13 (15) ◽  
pp. 2853-2863 ◽  
Author(s):  
Hamid Reza Massrur ◽  
Taher Niknam ◽  
Mahmud Fotuhi‐Firuzabad ◽  
Ahmad Nikoobakht

Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3400
Author(s):  
Jie Xing ◽  
Peng Wu

Bidirectional coupling systems for electricity and natural gas composed of gas units and power-to-gas (P2G) facilities improve the interactions between different energy systems. In this paper, a combined optimization planning method for an electricity-natural gas coupling system with P2G was studied. Firstly, the characteristics of the component model of the electricity-natural gas coupling system were analyzed. The optimization planning model for the electricity-natural gas coupling system was established with the goal of minimizing the sum of the annual investment costs and the annual operation costs. Based on the established model, the construction statuses for different types of units, power lines, and pipelines and the output distribution values for gas units and P2G stations were optimized. Then, the immune algorithm was proposed to solve the optimization planning model. Finally, an electricity-natural gas coupling system composed of a seven-node natural gas system and a nine-node power system was taken as an example to verify the rationality and effectiveness of the model under different scenarios.


2016 ◽  
Vol 48 ◽  
pp. 257-264 ◽  
Author(s):  
Lin Zhu ◽  
Le Zhang ◽  
Junming Fan ◽  
Peng Jiang ◽  
Luling Li

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