Development of an Intelligent System for Distance Relay Protection with Adaptive Algorithms for Determining the Operation Setpoints

Olga Akhmedova, Anatoliy Soshinov, Farit Gazizov and Svetlana Ilyashenko
Additional contact information
Olga Akhmedova: Department of Power Supply for Industrial Enterprises, Kamyshin Technological Institute (Branch) of Volgograd State Technical University, Lenina st. 6A, 403874 Kamyshin, Russia
Anatoliy Soshinov: Department of Power Supply for Industrial Enterprises, Kamyshin Technological Institute (Branch) of Volgograd State Technical University, Lenina st. 6A, 403874 Kamyshin, Russia
Farit Gazizov: Department of Economics and Organization of Production, Krasnoselskaya 51, Kazan State Power Engineering University, 420066 Kazan, Russia
Svetlana Ilyashenko: Base Department of Trade Policy, Plekhanov Russian University of Economics, Stremyanny per. 36, 117997 Moscow, Russia

Energies, 2021, vol. 14, issue 4, 1-20

Abstract: The drastic consequences of emergencies force us to look for ways to increase the stability of the device operation at overhead power transmission lines (OHPTL). It can be achieved by developing new algorithms for determining the protection operation setpoints and detecting the damage location. Fault detection at OHPTL of 10 kV and above is mainly carried out by the devices based on the measurement of emergency mode parameters. For fault detecting one should analyze the parameters of not only current and voltage at the accident time, but also of the overhead power line. Specific active resistance, specific reactance, specific active conductivity and specific reactive conductivity are used to characterize the overhead power transmission lines. As a rule, these parameters are normalized to the unit of length of the overhead line (OHL) and linear values are used in the calculations. When analyzing power lines, tabular approximate values of longitudinal and transversal parameters in equivalent circuits are used, although solving problems in an unsimplified form leads to significant refinements of the known solutions, since OHLs are influenced by external atmospheric factors (ambient temperature, soil moisture, wind force, ice formation, etc.). The paper analyzes these characteristics and evaluates the influence of the listed factors on the linear longitudinal and transversal parameters of overhead lines. A functional dependence of external factors on the distance protection actuation setpoint was obtained. A method for automatic correction of the setpoint of the intelligent protection complex and an adaptive relay protection algorithm was developed, taking into account changes in climatic factors, enabling to reduce the “dead zone” length and increase the protection sensitivity. The use of line parameters obtained from the sensors in the calculations give rise to a more accurate fault detection based on the use of remote sensing methods.

Keywords: relay protection; failure; power systems; overhead power transmission lines; fault detection; external environmental parameters (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/4/973/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/4/973/ (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:14:y:2021:i:4:p:973-:d:498342

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 ().