Outage Data Analysis of the Overhead Transmission Lines in Kazakhstan Power System

Bapin, Yerzhigit; Ekisheva, Svetlana; Papic, Milorad; Zarikas, Vasilios

doi:10.1109/pmaps47429.2020.9183569

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…Some studies have documented these failures as influencing grid reliability, including (Okoye and Omolola, 2019;Pepyne, 2007;Vaiman et al, 2012). Other scholars that have documented technical faults as influencers of grid reliability (Bapin et al, 2020;Honang, 2015;Vaiman et al, 2012;Zhu et al, 2012). We therefore hypothesize that; H1.…”

Section: Empirical Literature and Hypothesis Testingmentioning

confidence: 88%

“…Power grids, especially smart grids, are usually managed by computer software such as Supervisory Control and Data Acquisition (SCADA) systems and the failure of such computer software can also lead to power outages (Abdelghany and Tahar, 2021;Hatziargyriou et al, 2005). Other technical faults that compromise grid reliability are unstable voltage levels (Bapin et al, 2020;Okoye and Omolola, 2019;Papic et al, 2018;Shaikh et al, 2017) and reactive power levels (Hatziargyriou et al, 2005;Veloza and Santamaria, 2016). The transmission and distribution grid are made of devices that are meant to protect it by addressing unacceptable problems and taking necessary corrective action; however, sometimes these devices fail and hence lead to grid unreliability.…”

Section: Empirical Literature and Hypothesis Testingmentioning

confidence: 99%

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

Migisha,

Ntayi,

Adaramola

et al. 2023

TECHS

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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.

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Section: Empirical Literature and Hypothesis Testingmentioning

confidence: 88%

Section: Empirical Literature and Hypothesis Testingmentioning

confidence: 99%

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

“…Hurricanes caused simultaneous failures on both grid components and the grid itself [46][47][48][49][50][51][52][53][54] and are affecting power grid systems in the western part of the world. Other environmental factors that influence grid reliability include rainfall [47,55,56], the land cover type [47,57], different tree characteristics [47,[58][59][60][61][62], flooding [50,63], storms, for example, heat storms [15,[64][65][66][67], lightning [60,66,[68][69][70], El Nino/La Niña [46], ice and snow storms [71,72], atmospheric surges [73], fires [63], gust wind and wind speed [48,49,52], birds [61,74], thunderstorms [75,76], earthquakes [72], dust storms [56,…”

Section: Environmental/weather Factorsmentioning

confidence: 99%

Review of Concepts and Determinants of Grid Electricity Reliability

Migisha,

Ntayi,

Buyinza

et al. 2023

Energies

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The reliability of the electricity supply is important since any interruption to the supply has direct and indirect consequences for its users. A reliable electricity supply requires a reliable electrical grid system to transmit and distribute the power from the generating plants to the consumers. This study reviewed the literature to find out how the reliability concept has been understood with a special focus on grid electricity reliability, what factors influence grid electricity reliability, what measures have been used to measure grid electricity reliability, which theories and methodologies have been applied to study grid electricity reliability and what are the likely research gaps that require future address. This review found that the literature documents four categories of factors that influence grid electricity reliability, and these are environmental, security, organizational and technical. The biggest influencers of grid electricity reliability were the technical-related factors followed by the environmental-related factors. In addition, we found that sixty studies focused on one subsystem, eleven on two subsystems while seven studies considered three subsystems. Most studies were found to address the distribution of subsystem reliability. As per the methodology adopted, this review found that eleven studies used a qualitative approach, forty-five studies used a quantitative approach, while eleven studies used a case study approach to study the concept of grid electricity reliability. In addition, we found that thirty-seven studies used the duration and frequency of power outages to measure grid electricity reliability.

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The Development of a Risk Assessment Modeling for the Power System of Kazakhstan

Zhakiyeva

Gabbassov

Akhmetbekov

et al. 2021

2021 IEEE International Conference on Smart Information Systems and Technologies (SIST)

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Outage Data Analysis of the Overhead Transmission Lines in Kazakhstan Power System

Cited by 3 publications

References 20 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

Review of Concepts and Determinants of Grid Electricity Reliability

The Development of a Risk Assessment Modeling for the Power System of Kazakhstan

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