Improved Control Technique for Enhancing Power System Stability in Out-of-Step Conditions

Nande Fose (), Senthil Krishnamurthy and Prathaban Moodley
Additional contact information
Nande Fose: Department of Electrical, Electronics and Computer Engineering, Cape Peninsula University of Technology, P.O. BOX 1906, Bellville 7535, South Africa
Senthil Krishnamurthy: Department of Electrical, Electronics and Computer Engineering, Cape Peninsula University of Technology, P.O. BOX 1906, Bellville 7535, South Africa
Prathaban Moodley: South African National Energy Development Institute (SANEDI), Upper Grayston Office Park, Sandton 2146, South Africa

Energies, 2024, vol. 17, issue 16, 1-23

Abstract: From time to time, a series of unpredictable and conflicting contingencies can lead to angular instability of the power system and even blackouts if not adequately handled by an out-of-step (OOS) protection system. The key contribution of this research work, to the theory of out-of-step protection, is the identification and isolation after a given disruption of many unstable swings. This paper presents a proposed method to avoid false operation for distance function by out-of-step blocking to improve the system stability by using optimally placed PMUs for the fast detection of system analogue quantities. The studies were performed on a modified Eskom transmission network in the Western Cape with 765 kV and 400 kV voltage levels. The aim is to investigate the IEC 61850-90-5 standard for predictive dynamic stability maintaining systems using PMUs for out-of-step conditions of synchronous generators. The power system modelling and simulation are performed in the RSCAD-FX for the proposed multi-area power system network. An experimental lab-scale implementation is built to test the proposed out-of-step algorithm in a real-time digital simulator. Software-based PMU is incorporated to test and validate the IEC 61850-90-5 standard sampled values. Simulation and experimental results are presented.

Keywords: out-of-step protection; dynamic stability; rotor angle; phasor measurement unit; IEC 61850-90-5 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/17/16/4086/pdf (application/pdf)
https://www.mdpi.com/1996-1073/17/16/4086/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:17:y:2024:i:16:p:4086-:d:1458096

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().