Distributed Calculation of Security-Constrained Optimal Energy Flow in Integrated Power and Gas Energy Systems

被引：0
|
作者：
Lin S. [1 ]
Tang Z. [1 ]
Xie Y. [1 ]
He S. [1 ]
Song Y. [1 ]
机构：
[1] School of Electric Power Engineering, South China University of Technology, Guangzhou, 510640, Guangdong
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2020年 / 48卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Distributed calculation; Integrated power and gas energy systems; N-1; failure; Optimal energy flow; Security-constrained; Synchronous ADMM;
D O I：
10.12141/j.issn.1000-565X.190225
中图分类号：
学科分类号：
摘要：
A security-constrained optimal energy flow calculation model for integrated power and gas energy systems (IPGES) was established, considering the coupling of gas generators and motor driven compressors between power system and natural gas system. The model takes the total operating cost of the IPGES, that is, the sum of the cost of coal consumption by coal-fired generating units and the cost of natural gas consumption by gas sources of natural gas networks, as the objective function, and the security constraints of multiple N-1 contingencies in power systems and natural gas systems were considered. Firstly, the objective function of the original optimization model was divided by considering the influence of the transaction between the power network and the natural gas network. And the coupling equations of the gas generators and the motor-driven compressors were linearized by the first-order Taylor series expansion, respectively. Thus makes it possible to use the synchronous alternating direction multiplier method (ADMM) for distributed solution of security-constrained optimal energy flow calculation model. Then the CONOPT solver in GAMS software was used to solve the optimal energy flow of power system and natural gas system, respectively. Finally, the modified IEEE-39 bus power system and Belgium 20-bus natural gas system were taken as an example to validate the proposed model and solution algorithm. The results show that the proposed model and algorithm are correct and effective. © 2020, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：36 / 46
页数：10
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