A new algorithm for the identification of high impedance faults in distribution systems utilizing S transform

IF 6 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY

Ain Shams Engineering Journal Pub Date : 2025-03-01 DOI:10.1016/j.asej.2025.103334

Aida Abedzadeh Janiabadi, Saeid Hasheminejad

引用次数: 0

Abstract

Using the superior specifications of S-transform (ST) a new algorithm is presented for the high impedance fault (HIF) detection in distribution systems. Here, ST is applied to one cycle of the current signal and all time and frequency information of the signal are extracted. Then, four numerical indices named as total harmonic distortion (THD), even harmonic energy (EHE), variation coefficient (VC) and phase deviation (PD) are calculated from the ST output. According to the values of the four indices and some predefined thresholds, HIF is discriminated from the normal situation and other events of the distribution system. Performance of the proposed algorithm is evaluated by the test signals simulated by PSCAD/EMTDC software and experimental test signals extracted from a real distribution network. Here, the total algorithm implementation time is 21 ms. With the presence of 30 dB gaussian white noise, the HIF identification accuracy is cleared to be 98.48 %.

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来源期刊

Ain Shams Engineering Journal Engineering-General Engineering

CiteScore

10.80

自引率

13.30%

发文量

441

审稿时长

49 weeks

期刊介绍： in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance. Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.