Fault detection and identification for voltage sag state estimation in power systems

Authors

JAMAL BEIZA
SEYED HOSSEIN HOSSEINIAN
BEHROOZ VAHIDI

DOI

10.3906/elk-0904-5

Abstract

This paper presents a novel approach for fault detection and identification in order to estimate voltage sag during a fault. One of the best approaches for voltage sag estimation is instantaneous voltage estimation. The approach uses traditional state estimation where redundant measurements are available. The proposed method is used to estimate voltage sag performance during a fault. At the fault duration, the grid topology is changed. In such a case the measurement matrix must be re-determined at the fault duration. The proposed approach is an efficient method for fault detection and identification which is based on residual analysis and topology error detection. The performance of the novel approach is tested on an IEEE 14 bus system and the results are shown.

Keywords

Fault location, power system quality, voltage sag (dip) estimation, state estimation, residual analysis

First Page

665

Last Page

676

Recommended Citation

BEIZA, JAMAL; HOSSEINIAN, SEYED HOSSEIN; and VAHIDI, BEHROOZ (2010) "Fault detection and identification for voltage sag state estimation in power systems," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 18: No. 4, Article 12. https://doi.org/10.3906/elk-0904-5
Available at: https://journals.tubitak.gov.tr/elektrik/vol18/iss4/12