Line collapse proximity index for prediction of voltage collapse in power systems

Tiwari, Rajive; Niazi, K. R.; Gupta, Vikas

doi:10.1016/j.ijepes.2012.03.022

Cited by 107 publications

(61 citation statements)

References 22 publications

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“…The single line diagram of the 33-node network is shown in Fig. 1 and its data are given in [17]. The voltage stability index is evaluated using equation (8).…”

Section: Resultsmentioning

confidence: 99%

“…The loads generally play a key role in voltage stability analysis and therefore the voltage stability is known as load stability. Literature survey shows that a major work has been done on the voltage stability analysis of transmission systems, but so far the researchers have paid very little attention on the voltage stability analysis for a radial distribution network [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] in power system. A radial distribution system consists of root node, main line, lateral line, sub lateral line and minor line with some uniform and non-uniform tapings.…”

Section: Introductionmentioning

confidence: 99%

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Impact of distributed generator on voltage stability analysis of distribution networks under critical loading conditions for composite loads

Chattopadhyay¹,

Banerjee²,

Chanda

2014

International Conference on Electronics, Communication and Instrumentation (ICECI)

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The paper presents voltage stability analysis of radial distribution networks under critical loading conditions without and with distributed generator (DG) for composite loads. A new voltage stability index is proposed for identifying the node, which is most sensitive to voltage collapse. The effectiveness of the proposed method without and with considering DG for loads of composite types has been successfully tested on a 12.66 kV radial distribution network consisting of 33 nodes and the results are found to be in very good agreement.

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“…The single line diagram of the 33-node network is shown in Fig. 1 and its data are given in [17]. The voltage stability index is evaluated using equation (8).…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of distributed generator on voltage stability analysis of distribution networks under critical loading conditions for composite loads

Chattopadhyay¹,

Banerjee²,

Chanda

2014

International Conference on Electronics, Communication and Instrumentation (ICECI)

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show abstract

“…All line stability indicators are derived based on the assumption that both P and Q flow in the same direction from the SB to RB. [3][4][5]34,[36][37][38][39][40][41][42][43][44][45][46][47] However, in real systems, P and Q may flow in opposite directions. In such conditions, the abovementioned indicators may not properly evaluate the stability status, which has not considered in research works.…”

Section: Assessment Of Line Indices Against Different Directions Ofmentioning

confidence: 99%

A comprehensive assessment to propose an improved line stability index

Yari

Khoshkhoo

2019

Int Trans Electr Energ Syst

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Summary So far, several line stability indices have been introduced and used for evaluating voltage stability status of power systems. The objective of this paper is to propose a comprehensive assessment of these indices and also to propose a modified line stability index to accurately assess the stability status of networks in different situations. To this purpose, the performance of several line indices at different conditions is analyzed. Also, to categorize system states to normal, alert, and emergency, proper thresholds are proposed for these indices. It will be shown that although line indices are able to properly assess the stability of a two‐bus system, they cannot detect the stability status in real networks. Therefore, a modified index has been proposed, which can accurately assess the stability status of power systems. The static and dynamic simulation results performed in the Institute of Electrical and Electronics Engineer (IEEE) 39‐ and 118‐bus test systems verify the performance of the proposed index.

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“…Due to the difficulties reported in the literature for the available indices, a new index based on the effect of power flow in transmission lines, line charging reactance and the direction of reactive power flow with respect of the direction of active power flow known as "Line collapse proximity index" (LCPI) is proposed [10]. The modeling of this index is based on the exact pi-model of the transmission lines using ABCD-parameters.…”

Section: A Line Collapse Proximity Indexmentioning

confidence: 99%

Power system security analysis under transmission line outage condition

Sangu¹,

Reddy²,

Sivanagaraju³

2015

International Journal of Innovative Research in Electrical, Ele

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Abstract:The power system becomes more severe under contingency conditions. In general, the contingencies may be outage of transmission lines or generators. To identify the effect of outages on system security, the contingency analysis is one of the analytical tools. The congestion on a system must be manages using generation rescheduling and with the proper control of the compensation equipments. The transmission line outage sometime increases the total power system losses, cascading outage of transmission lines, etc. Finally, the system leads to collapse condition. To avoid this type of uncontrolled condition, the power system security needs to be analyzed under transmission line outage condition. In this paper, the most critical transmission lines are identified using line collapse proximity index values and the system severity is analyzed in terms of transmission line loadings, bus voltage magnitude variations are tested on standard IEEE-14 bus test system and the analytical results are presented in numerically and as well as graphically.

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Line collapse proximity index for prediction of voltage collapse in power systems

Cited by 107 publications

References 22 publications

Impact of distributed generator on voltage stability analysis of distribution networks under critical loading conditions for composite loads

Impact of distributed generator on voltage stability analysis of distribution networks under critical loading conditions for composite loads

A comprehensive assessment to propose an improved line stability index

Power system security analysis under transmission line outage condition

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