Techniques of power system static security assessment and improvement: A literature survey

Hailu, Engidaw Abel; Nyakoe, George N.; Muriithi, Christopher Maina

doi:10.1016/j.heliyon.2023.e14524

Cited by 11 publications

(3 citation statements)

References 110 publications

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“…Though this topic is extensively addressed in the scientific literature, it still remains an active research field, because the identification of severe operation modes enables the prevention of possible systemic accidents. A comprehensive review of static security is given in reference [9], which examines the methods and techniques used in this field in more detail.…”

Section: Reliabilitymentioning

confidence: 99%

A Methodology for Rating Electricity Transmission Lines to Assess the Most Important or Critical Lines

Trukšinas,

Radziukynas,

Kairaitis

2024

Applied Sciences

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The proposed method, based on three combined criteria—Sn—design capacity of the power line, LF, (line flow)—power flow in an electric transmission line, MVA, and the ratio of LF/Sn—allows for ranking electric transmission lines when calculations are performed in normal/pre-emergency modes. A combined set of criteria used to study critical/post-emergency N-k modes is developed. The simulations were performed on the real Baltic 330 kV electricity transmission system. The results reveal that when the power system operates in different load modes, most of the critical power lines determined by our method fall into the actual set of important/“critical” power transmission lines. This allows us to significantly reduce the number of simulated combinations and shorten the calculation time required for it. During the study of the Baltic electricity system, it was found that the developed method was accurate and efficient and suitable for the assessment of the reliability of real electricity transmission networks when planning operational and perspective work modes. The simulations results revealed the high reliability of the Baltic electricity system. The 330 kV electricity transmission network of the Baltic countries fully meets the N-2 criterion (usually, electricity transmission networks are designed to meet the N-1 criterion).

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Section: Reliabilitymentioning

confidence: 99%

A Methodology for Rating Electricity Transmission Lines to Assess the Most Important or Critical Lines

Trukšinas,

Radziukynas,

Kairaitis

2024

Applied Sciences

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“…In 2022 the review on Computational Methods in Power System Stabilizer for Damping Power Oscillations was presented in Devarapalli, Sinha and García Márquez (2022). In 2023 the methods of power system static security assessment and improvement were reviewed in Hailu, Nyakoe and Muriithi, (2023). The objective of this review paper is to summarise the articles and papers published on tuning and allocation of UPFC for enhancing power system stability.…”

Section: Voltage Stability In Power Systemmentioning

confidence: 99%

Unified Power Flow Controller: A Brief Review on Tuning and Allocation for Power System Stability

Sule

2023

ejtas

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The Power System can become unstable due to disturbances. To enhance system stability the Unified Power Flow Controller (UPFC) is tuned and allocated in the System. In this paper, a brief review of UPFC tuning and allocation studies for power systems stability is presented. The databases consulted for literature are the IEEE Xplore, ScienceDirect, Google Scholar and IOP Publications. The search terms used are Allocation, Tuning, UPFC, Power System and Stability to find the literature used in this review. A total of 26 Journal articles and conference papers were found and reviewed based on tuning and allocation studies. The Researchers applied Fuzzy coordination, Genetic Algorithm (GA), Particles Swarm Optimization (PSO), Grey Wolf Optimization (GWO) and Linear Quadratic Tracker (LQT) to tune the UPFC for enhancing power system stability. For studies on UPFC allocation in power systems, the Researchers applied frequency response of power system transfer function, power flow, Tabu Search (TS), PSO and GA. For allocation based on optimization, the Researchers minimized power losses, voltage index and investment costs considering equality and inequality constraints.

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“…N-1 contingency analysis is a practice that involves evaluating the network's resilience by simulating the removal or malfunction of a critical component, such as a transmission line. These analyses provide insights into potential vulnerabilities that could catalyze cascading failures and blackouts, serving as a foundation for informed decision-making to enhance grid reliability and minimize the repercussions of unforeseen incidents 2 , 3 .…”

Section: Introductionmentioning

confidence: 99%

Novel risk index integrating practical operation limits enhances probabilistic contingency ranking for large-scale photovoltaic plant planning

Elazab,

El-Aser,

El-samahy

2024

Sci Rep

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This research addresses the pressing need for heightened grid security amid increasing uncertainties in photovoltaic PV generation. The research problem lies in the limitations of conventional contingency analysis metrics, failing to adequately consider both contingency occurrences and uncertainties inherent in PV generation. In response, a comprehensive algorithm is proposed that introduces a novel severity function framework, enhancing traditional contingency ranking metrics. This approach incorporates grid remedial actions and refines line and bus voltage classification by considering available correction time, aiming to offer a more robust security assessment. Motivated by the imperative to address uncertainty in PV generation, the proposed work builds on established analysis tools. A probabilistic load flow algorithm manages PV generation uncertainties, utilizing historical data for contingency incidence uncertainty. Additionally, a probabilistic model for PV plants integrates historical solar data, deriving hourly probability density functions to meet grid code requirements, including reactive power considerations. The justification for this work lies in the algorithm's demonstrated efficacy, validated on the IEEE 14-bus network. Results highlight its ability to identify risks associated with line overloading and bus voltage breaches. Comparative evaluations underscore proper coupling buses for security, favoring distributed capacity to mitigate line overloading risks. The study's key results emphasize voltage risk amplification with reactive power omission, stressing the significance of compensation strategies. This research addresses a critical problem, presenting a comprehensive algorithmic solution to enhance grid security amidst uncertainties in PV integration. Findings offer valuable insights for strategically interaction between large scale PV plants and electrical grid, contributing to an improved grid security paradigm in a dynamic and uncertain energy model.

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Techniques of power system static security assessment and improvement: A literature survey

Cited by 11 publications

References 110 publications

A Methodology for Rating Electricity Transmission Lines to Assess the Most Important or Critical Lines

A Methodology for Rating Electricity Transmission Lines to Assess the Most Important or Critical Lines

Unified Power Flow Controller: A Brief Review on Tuning and Allocation for Power System Stability

Novel risk index integrating practical operation limits enhances probabilistic contingency ranking for large-scale photovoltaic plant planning

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