{"title":"A multi-source power grid's resilience enhancement strategy based on subnet division and power dispatch","authors":"Shuliang Wang, Qiqi Dong","doi":"10.1016/j.ijcip.2023.100602","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>A resilience enhancement strategy based on subnetting is proposed to improve the robustness and repair ability of multi-source power grids. Firstly, based on the characteristics of renewable energy and the principle of </span>cascading failure, the network is divided into multiple stable and sustainable subnets by using the power flow data and island operation conditions in the system, and the key nodes in the subnet are identified by the index of interval electrical </span>betweenness<span>. Considering the three stages of the resilience cycle, the nodes that should be protected or repaired are determined at each time scale, and four different attack and repair strategies are established on this basis. To verify the effectiveness of the proposed method, the robustness and resilience of power networks with and without renewable energy are evaluated from different perspectives, and the impact of this method on improving network resilience is quantitatively evaluated. Finally, the improved IEEE 118-bus system is simulated. The results show that the attack and repair strategies based on subnetting have significant effects on both multi-source power grids and traditional power grids. The resilience enhancement method proposed in this paper can identify grid weaknesses and formulate repair measures that can provide support for improving the defense and resilience of the power grid.</span></p></div>","PeriodicalId":49057,"journal":{"name":"International Journal of Critical Infrastructure Protection","volume":"41 ","pages":"Article 100602"},"PeriodicalIF":4.1000,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Critical Infrastructure Protection","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S187454822300015X","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"COMPUTER SCIENCE, INFORMATION SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
A resilience enhancement strategy based on subnetting is proposed to improve the robustness and repair ability of multi-source power grids. Firstly, based on the characteristics of renewable energy and the principle of cascading failure, the network is divided into multiple stable and sustainable subnets by using the power flow data and island operation conditions in the system, and the key nodes in the subnet are identified by the index of interval electrical betweenness. Considering the three stages of the resilience cycle, the nodes that should be protected or repaired are determined at each time scale, and four different attack and repair strategies are established on this basis. To verify the effectiveness of the proposed method, the robustness and resilience of power networks with and without renewable energy are evaluated from different perspectives, and the impact of this method on improving network resilience is quantitatively evaluated. Finally, the improved IEEE 118-bus system is simulated. The results show that the attack and repair strategies based on subnetting have significant effects on both multi-source power grids and traditional power grids. The resilience enhancement method proposed in this paper can identify grid weaknesses and formulate repair measures that can provide support for improving the defense and resilience of the power grid.
期刊介绍：
The International Journal of Critical Infrastructure Protection (IJCIP) was launched in 2008, with the primary aim of publishing scholarly papers of the highest quality in all areas of critical infrastructure protection. Of particular interest are articles that weave science, technology, law and policy to craft sophisticated yet practical solutions for securing assets in the various critical infrastructure sectors. These critical infrastructure sectors include: information technology, telecommunications, energy, banking and finance, transportation systems, chemicals, critical manufacturing, agriculture and food, defense industrial base, public health and health care, national monuments and icons, drinking water and water treatment systems, commercial facilities, dams, emergency services, nuclear reactors, materials and waste, postal and shipping, and government facilities. Protecting and ensuring the continuity of operation of critical infrastructure assets are vital to national security, public health and safety, economic vitality, and societal wellbeing.
The scope of the journal includes, but is not limited to:
1. Analysis of security challenges that are unique or common to the various infrastructure sectors.
2. Identification of core security principles and techniques that can be applied to critical infrastructure protection.
3. Elucidation of the dependencies and interdependencies existing between infrastructure sectors and techniques for mitigating the devastating effects of cascading failures.
4. Creation of sophisticated, yet practical, solutions, for critical infrastructure protection that involve mathematical, scientific and engineering techniques, economic and social science methods, and/or legal and public policy constructs.
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