A new method to prevent undesirable distance relay tripping during voltage collapse

Ahmad Farid Abidin, Azah Mohamed, Afida Ayob

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

This paper presents a new approach to prevent undesirable distance relay tripping by using the rate of change of voltage, dv/dt and voltage stability index (VSI). By using the dv/dt, the distance relay is able to block the false trip signals due to voltage instability. However, the dv/dt approach is inappropriate to identify between a fault and close to collapse and may lead to undesirable tripping. Hence, an appropriate indicator based on VSI is proposed to block such false tripping during voltage collapse. The result from the application of dv/dt for both events has been carried out to ascertain such hypothesis. In the proposed method, the performance of the VSI is evaluated for its accuracy in discriminating a fault and voltage collapse by comparing it with the System Status Indicator (SSI). Then, the combination of dv/dt and VSI is applied to the distance protection to ensure the reliability of such approach. To illustrate the effectiveness of the proposed approach, simulations were carried out on the IEEE 39 bus test system using the PSS/E software. Test results show the effectiveness of the combined approach in blocking the relay false trip signals.

Original languageEnglish
Pages (from-to)59-71
Number of pages13
JournalEuropean Journal of Scientific Research
Volume31
Issue number1
Publication statusPublished - 2009

Fingerprint

Voltage Stability
Stability Index
Motor Vehicles
Voltage control
Relay
Software
Voltage
Electric potential
Fault
testing
Rate of change
Test System
methodology
method
software
index
False
Simulation
simulation

Keywords

  • Distance relay
  • Fault
  • Voltage collapse

ASJC Scopus subject areas

  • General

Cite this

A new method to prevent undesirable distance relay tripping during voltage collapse. / Abidin, Ahmad Farid; Mohamed, Azah; Ayob, Afida.

In: European Journal of Scientific Research, Vol. 31, No. 1, 2009, p. 59-71.

Research output: Contribution to journalArticle

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