Evaluation of the effectiveness of voltage stability indices on different loadings

Lim, Zi Jie; Mustafa, Mohd Wazir; Muda, Z. bt

doi:10.1109/peoco.2012.6230925

Cited by 12 publications

(3 citation statements)

References 5 publications

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“…[14][15][16][17] Assessment of power system voltage stability can be carried out by using some mathematical models collectively known as the voltage stability indices (VSIs). 18 Most of these VSIs such as LMN, FVSI, Lp, LQP, and NLSI are formulated by approximating specific power system details based on credible assumptions concerning the reactive power transfer and terminal voltage relationships. [19][20][21][22] However, research has revealed that both the real and reactive power loading have significant effects on voltage stability of the power system.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of a new VSC‐optimal power flow formulation for power system security planning

Adewuyi

Howlader

Olaniyi

et al. 2020

Int Trans Electr Energ Syst

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Summary The performance of a new approach for multiobjective voltage stability constrained‐optimal power flow (VSC‐OPF) formulation is compared with a conventional VSC‐OPF approach for improving the steady‐state power systems security in this paper. The compared OPF problems involve the minimization of the fuel cost and minimization of novel line stability index (NLSI) for case 1 and minimization of fuel cost and maximization of line static stability margin (CBI) for the proposed case 2. Clerc's constricted PSO algorithm modified with the nondominated sorting algorithm is used for obtaining the best solution point for each of the decision variables. Network security constraints and bus voltage limits are considered along with the constraint on permissible line stability margin limit adopting the quadratic penalty model for constraints violations. The approach is tested on a load‐modified IEEE 30‐bus and actual Nigerian 28‐bus systems. From the results obtained, the proposed OPF formulation performed better for simultaneous consideration of voltage stability improvement and line loss reduction.

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Section: Introductionmentioning

confidence: 99%

Comparative analysis of a new VSC‐optimal power flow formulation for power system security planning

Adewuyi

Howlader

Olaniyi

et al. 2020

Int Trans Electr Energ Syst

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“…This review elaborates on the numerous methodologies for assessing voltage stability. Furthermore, categorizing the different VSIs in [3][4][5] as line VSIs, Bus VSIs, and overall VSIs. Jacobian matrix-based indices and PMU-based indices fall under overall VSIs.…”

Section: Voltage Stability Indicesmentioning

confidence: 99%

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

Valuva,

Chinnamuthu,

Khurshaid

et al. 2023

Energies

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Many technological advancements in the modern era have made actual use of electrical power and the constrained operating of power systems within stability limits. Some expeditious load variations and rising power demands initiate complications in voltage stability and can put stress on performance, leading to voltage instability. Voltage Stability Indices can be used to perform voltage stability assessment. This review evaluates various VSIs based on mathematical derivations, assumptions, critical values, and methodology. VSIs determine the maximum loadability, voltage collapse proximity, stability margin, weak areas, and contingency ranking. Stability indices can also specify the optimal placing and sizing of Distributed Generators. Thus, VSIs play a vital role in power system voltage stability. This review is a comprehensive survey of various indices and analyses their accuracy in determining the instability of power systems. Voltage stability is a crucial concern in operating a reliable power system, and the systematic evaluation of voltage stability is essential in a power system. This review considered and analyzed 34 indices from 138 articles from the literature for their significant performance in various power system stability problems. Of 33 indices, were 22 derived from transmission line parameters, referred to as line indices, and 12 from bus and line parameters, referred to as bus indices.

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“…In (Reis and Maciel Barbosa, 2009;Karbalaei et al, 2010;Zhao J and Yang, 2011;Lim et al, 2012;Ismail et al, 2014;Baleboina et al, 2017;Baleboina and Mageshvaran, 2018;Yuva Kishore and Guru Mohan, 2018;Yari and Khoshkhoo, 2019;Nageswa Rao et al, 2021), a comprehensive assessment of several line stability indices (LSIs) was carried out. Moreover, a modified LSI has been proposed to precisely measure the stability status of system networks at different conditions.…”

Section: Vsismentioning

confidence: 99%

A survey on voltage stability indices for power system transmission and distribution systems

Baleboina,

Mageshvaran

2023

Front. Energy Res.

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Voltage stability is a critical aspect of power system operation, ensuring the reliable and efficient delivery of electrical energy to consumers. Recently, voltage stability in the power system has received much attention. The primary cause of voltage instability is the lack of real and reactive power generation to cope with the continuous demand increment. Maintaining voltage stability while planning, controlling, and assessing the system’s security is a difficult task for power system engineers. From knowledge of past incidents, a lack of reactive power is identified as the primary cause of voltage instability, which may further lead to the total collapse of the system. The importance of voltage stability assessment is essential to maintain the integrity of power systems. It helps prevent voltage instability, which can lead to cascading failures and widespread outages. This paper uses various parameters, including load demand, generator capacity, and system impedance, to develop voltage stability indices (VSIs). The paper mainly focuses on the idea of VSIs that have been developed in order to monitor and control the criticality of the power system. The voltage stability indices for transmission and distributed systems, as well as their subclasses, are thoroughly reviewed in this study. Furthermore, traditional voltage stability methods, as well as various software tools for monitoring the voltage stability problems, are also discussed. In addition, the development of VSIs and its related concepts are clearly described in this paper. This comprehensive survey provides a decent groundwork for future work in this area, and assists professionals in selecting the optimal VSI for various applications. Moreover, it provides a concise overview of methods and the importance of voltage stability assessment in both transmission and distribution systems.

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Evaluation of the effectiveness of voltage stability indices on different loadings

Cited by 12 publications

References 5 publications

Comparative analysis of a new VSC‐optimal power flow formulation for power system security planning

Comparative analysis of a new VSC‐optimal power flow formulation for power system security planning

A Comprehensive Review on the Modelling and Significance of Stability Indices in Power System Instability Problems

A survey on voltage stability indices for power system transmission and distribution systems

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