Evaluating component importance and reliability of power transmission networks subject to windstorms: methodology and application to the nordic grid

Scherb, Anke; Garrè, Luca; Straub, Daniel

doi:10.1016/j.ress.2019.106517

Cited by 34 publications

(13 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In some situations, the early discovery of failures may avoid the actual shutdown of the system. This result agrees with the works of previous scholars, such as (Scherb et al. , 2019; Okoye and Omolola, 2019; Pepyne, 2007; Vaiman et al.…”

Section: Discussion Of Results Of the Studysupporting

confidence: 93%

“…outages because the functions of some grid components are compromised as they age and become absolute (Chakravorti, 2006;Hatziargyriou et al, 2005;Okoye and Omolola, 2019;Vaiman et al, 2012). Other technical factors that have been pointed out by scholars as influencers of grid reliability include the collapse of the grid components (Pepyne, 2007), component and line failures (Abdelghany and Tahar, 2021;Scherb et al, 2019) and vulnerable and broken line segments (Ivanova et al, 2020;Scherb et al, 2019). We state the hypothesis that; H2.…”

Section: Effects Of Technical and Security Factorsmentioning

confidence: 91%

See 1 more Smart Citation

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Migisha,

Ntayi,

Adaramola

et al. 2023

TECHS

View full text Add to dashboard Cite

PurposeAn unreliable supply of grid electricity has a strong negative impact on industrial and commercial profitability as well as on household activities and government services that rely on electricity supply. This unreliable grid electricity could be a result of technical and security factors affecting the grid network. Therefore, this study aims to investigate the effects of technical and security factors on the transmission and distribution of grid electricity in Uganda.Design/methodology/approachThis study used the ordinary least squares (OLS) and autoregressive distributed lag (ARDL) models to examine the effects of technical and security factors on grid electricity reliability in Uganda. The study draws upon secondary time series monthly data sourced from the Uganda Electricity Transmission Company Limited (UETCL) government utility, which transmits electricity to both distributors and grid users. Additionally, data from Umeme Limited, the largest power distribution utility in Uganda, were incorporated into the analysis.FindingsThe findings revealed that technical faults, failed grid equipment, system overload and theft and vandalism affected grid electricity reliability in the transmission and distribution subsystems of the Ugandan power grid network. The effect was computed both in terms of frequency and duration of power outages. For instance, the number of power outages was 116 and 2,307 for transmission and distribution subsystems, respectively. In terms of duration, the power outages reported on average were 1,248 h and 5,826 h, respectively, for transmission and distribution subsystems.Originality/valueThis paper investigates the effects of technical and security factors on the transmission and distribution grid electricity reliability, specifically focusing on frequency and duration of power outages, in the Ugandan context. It combines both OLS and ARDL models for analysis and adopts the systems reliability theory in the area of grid electricity reliability research.

show abstract

Section: Discussion Of Results Of the Studysupporting

confidence: 93%

Section: Effects Of Technical and Security Factorsmentioning

confidence: 91%

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Migisha,

Ntayi,

Adaramola

et al. 2023

TECHS

View full text Add to dashboard Cite

show abstract

“…The framework is based on Sun Java 2 Platform Enterprise Edition (J2EE), using Java Servlet technology and Java Server Pages (JSP) technology, and developed a subject-oriented Model View Controller (MVC) model Web application framework. Struts is a typical implementation architecture of the MVC model [1]. It provides corresponding implementation components for the model, view, and controller.…”

Section: Struts Framework Technologymentioning

confidence: 99%

“…For the design unit of power system, the construction of each project must go through a series of strict processes. From the project initiation, preliminary planning, final scheme review and final settlement, each link must go through strict review, and then proceed to the next step, so as to realize the waterfall management design mode Scherb et al (2019). However, the current manual audit method is not only inefficient, but also prone to errors, which seriously restricts the normal operation of the power system.…”

Section: Introductionmentioning

confidence: 99%

Design of power transmission and transformation engineering design review system based on spring struts hibernate framework

Zhang

Saren

Jiang

et al. 2023

International Conference on Intelligent Systems, Communications, and Computer Networks (ISCCN 2023)

View full text Add to dashboard Cite

For the current design of power transmission and transformation engineering design review system, there are some problems, such as poor functionality and processing capacity, and long system response time. The design review system of power transmission and Transformation Engineering Based on Spring + Struts + Hibernate (SSH) framework is designed. According to the definition and characteristics of SSH framework, this paper puts forward three classical frameworks: Struts, Spring and Hibernate, and integrates SSH framework. Through data cleaning, conversion and standardization, the evaluation data of transmission line engineering are simplified, and the evaluation data of transmission and transformation engineering are clustered by clustering algorithm. Analyze the overall requirements and functional requirements of the system, adopt SSH framework and design the overall system architecture in combination with specific business. Divide the system function structure from the user use type. Through the design of database structure and data table, the design of power transmission and transformation engineering design review system based on SSH framework is realized. The experimental results show that all functional modules of the system designed by the proposed method are in normal state, with an average throughput of 94.8mbps and a response time of only 17.2s. The proposed method has better functionality and processing capacity, and shorter system response time.

show abstract

“…Li et al 24 proposed a method for evaluating the importance of components of power systems to improve resilience under storms. Scherb et al 25 presented a procedure to effectively evaluate the importance of components and network reliability in power transmission grids subject to wind hazards. Miziula and Navarro 26 extended Birnbaum’s importance measure to the case of dependent components to be able to obtain relevant attributes, including connections and comparisons with other metrics recently proposed and studied.…”

Section: Introductionmentioning

confidence: 99%

Importance measure-based resilience analysis of a wind power generation system

Dui

Xiang

Guo

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part O:

View full text Add to dashboard Cite

Different from other forms of power generation, wind power generation has the characteristics of randomness, intermittentness, and volatility. Therefore, the wind power generation system (WPGS) is more prone to failures caused by external impacts during the operation. The reliability of the WPGS has a significant influence on the safety of large-scale power grid systems. Thus, how to accurately evaluate the reliability of the WPGS that is integrated into large-scale power grid systems has become a new challenge. Implementing effective resilience management in WPGSs can improve their ability to handle interruptions and increase the safety of the grid-connected system. This research proposes a new method of resilience management based on importance measure for the WPGS after multi-node failures due to natural disasters or man-made accidents. Firstly, both the performance of the WPGS before multi-node failures and the performance of the WPGS after multiple nodes failures are analyzed. Then, the performance loss and the performance recovery of the WPGS are evaluated. Finally, a new method for judging the loss importance measure of node, the recovery importance measure of node, and the resilience importance measure are proposed. The objective of this research is to analyze the restoration sequence of failed nodes in the WPGS with multi-node failures such that the system recover can be faster and more effective. The proposed method is proven to be effective by introducing the WPGS into the IEEE five-machine 14-node system.

show abstract

Evaluating component importance and reliability of power transmission networks subject to windstorms: methodology and application to the nordic grid

Cited by 34 publications

References 23 publications

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Effects of technical and security factors on grid electricity reliability: evidence from Uganda national electricity grid network

Design of power transmission and transformation engineering design review system based on spring struts hibernate framework

Importance measure-based resilience analysis of a wind power generation system

Contact Info

Product

Resources

About