1. Introduction Distance protection is a function widely used to protect power transmission lines, especially those with extra-high voltage (EHV) and
The application of classical machine learning algorithms in RPA tasks is analyzed, in particular, methods of k-nearest neighbors, logistic regression, and support vectors.
The crisis of traditional relay protection: A disruption of the technological paradigm Using the high short-circuit currents and system inertia provided by synchronous generators, traditional relay protection
In this approach, the protection algorithm calculates the value of the inductance from the relay location to the point of fault. The inductance to the fault was then used for both distance protection and as an
The implementation of digital normative and technical documents (DNTD) in the electric power industry, especially in the field of relay protection (RP), significantly increases the efficiency of design and
We demonstrated the advantages of using new differential-logic and multi-parameter relay protection algorithms, as well as the methods for relay protection tripping parameters calculation.
This paper analyzes the basic attributes and behavior attributes of the relay protection equipment, and establishes the tagging device model of the relay protection equipment including static class,
When the protection is implemented using a current relay, the current value at which the relay should operate must be determined first. By means of the stabilizing voltage and the current setting, the
In order to develop an intelligent system for distance protection with adaptive algorithms the work takes into account changes in climatic factors to
Artificial intelligence (AI) technology has many advantages in feature extraction, identification, big data processing and so on. It can make outstanding performance in modern power
In this research project, Artificial Intelligence (AI) algorithms applied to the relay protection of high and low-voltage distribution networks are investigated. The paper attempts to solve
This paper presents an algorithm for distance protection based on phase comparison of measured voltages and auxiliary voltages at the beginning of the line. The algorithm detects different
The relay protection system plays an important role in ensuring the stable operation of power systems. Combined with operation data collected from
Traditional requirements for a relay protection system (selectivity, tripping speed, sensitivity, and reliability) well describe its technical perfection, and, at the same time, they completely abstract away
The answer is a sophisticated algorithm to estimate the correct current from the highly distorted data. The next time series plot is depicting three different current calculation algorithm output.
Abstract. Issues of increase of consumer power supply reliability by prevention of protection device false operation and unreasonable tripping of the protected network element at malfunction of measuring
In this paper, we propose an optimization model based on independent component analysis and quantum genetic algorithm to address the
The article suggests a prediction and fault diagnosis model for relay protection system condition assessment that is based on the IAHP, SVM, IPSO, and K-means clustering algorithm.
Abstract: The relay protection system plays an important role in ensuring the stable operation of power systems. Combined with operation data collected from a region in China, this study is aimed at
The tendencies and perspective directions of development of modern digital devices of relay protection and automation (RPA) are considered. One of
These relays acquire the sequential samples of ac quantities in numeric (digital) data form through the data acquisition system, and process the data using the algorithm to calculate fault discriminate and
Graphical Abstract The article proposes a comprehensive fault diagnosis and prediction model for the state of the relay protection system using
The present GE digital distance relays use phasor quantities developed by discrete Fourier transforms rather than instantaneous samples for the protection algorithms. It was decided to use a fault location
Abstract: Protective relays and devices have been developed over 100 years ago to provide “last line” of defense for the electrical systems. They are intended to quickly identify a fault and isolate it so the
Based on this, this paper proposes a novel relay protection equipment status evaluation strategy. Firstly, considering the fuzziness and uncertainty of
3.2.1 Introduction One of the basic strategies for protecting the power systems is overcurrent protec-tion. When a fault happens in power systems, the current magnitude increases; the overcurrent relays
A wide range of operational data for relay protection systems, including different operating states and performance levels, may be collected by
Proper modeling of measuring transformers (MTs), symmetrical component filters (SCFs), and circuits connected to them effectively solves this problem, enabling the configuration of relay
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