Identification of key circuit parameters for the initiation of ferroresonance in a 400-kV transmission system

Ang, Swee Peng; Peng, Jinsheng; Wang, Zhongdong

doi:10.1109/ichve.2010.5640861

Cited by 4 publications

(2 citation statements)

References 9 publications

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“…Multiple factors influence the occurrence of ferroresonance in an electric circuit; there are three critical components in an electrical circuit that must be present for ferroresonance to occur: 1) a nonlinear inductance [3]; 2) a capacitor [4];…”

Section: Ferroresonance After Islanding Of Synchronousmentioning

confidence: 99%

Ferroresonance After Islanding of Synchronous Machine-Based Distributed Generation

Esmaeili

Rostami²,

Gharehpetian

et al. 2015

Can. J. Electr. Comput. Eng.

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This paper reports on ferroresonance phenomenon in distribution networks after the islanding of a distributed generation (DG) unit. Five coupling transformer configurations in synchronous machine-based DG are used to analyze and discuss occurrences of ferroresonance. PSCAD/EMTDC software was used to simulate the various configurations to collect data for analysis. Chaos theory was used to analyze the simulation results in a MATLAB environment in order to understand the type of ferroresonance present. This paper supports that synchronous machine-based DG units could be highly prone to occurrence of ferroresonance phenomenon after islanding with differences observed among the five configurations studied. This paper confirms that a groundedwye/delta connection is highly prone to ferroresonance and a delta/grounded-wye connection avoids ferroresonance when a DG unit becomes an island. Résumé-Ce travail de recherche concerne le phénomène de ferrorésonance dans les réseaux de distribution après l'isolation d'une unité de production distribuée (PD). Cinq configurations de transformateurs de couplage de PD basés sur les machines synchrones sont utilisées pour analyser et discuter des occurrences de ferrorésonance. Le logiciel PSCAD/EMTDC a été utilisé pour simuler les différentes configurations pour l'acquisition des donnéespour l'analyse. La théorie du chaos a été utilisée pour analyser les résultats de la simulation avec MATLAB pour mieux comprendre la ferrorésonance en question. Cet article prouve que les unités PD synchrones basées sur les machines synchrones après l'isolation pourraient être sujettes à l'apparition du phénomène de ferrorésonance avec des différences observées entre les cinq configurations étudiées. Ce document confirme que la connexion Wye-Delta liée à la masse peut avoir lieu quand une unité PD est isolée et une connexion delta/masse évite la ferrorésonance quand une DG est isolée aussi.

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Section: Ferroresonance After Islanding Of Synchronousmentioning

confidence: 99%

Ferroresonance After Islanding of Synchronous Machine-Based Distributed Generation

Esmaeili

Rostami²,

Gharehpetian

et al. 2015

Can. J. Electr. Comput. Eng.

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“…-detection of the ferroresonance based on the chaos theory and then analysis of nonlinear dynamic system behavior with the use of bifurcation diagrams, Poincaré maps, or phase planes -this approach allows one to identify the ferroresonance stability area with respect to dynamics variation of the system parameters and its initial conditions [19], -modeling of ferroresonant systems focusing on nonlinear inductive components -this involves modeling of magnetic cores of power transformers and reactors, including hysteresis effects [20], -investigations on ferroresonance occurrence in power grids [21]: a) experimental research on scaled down physical models of the system and components, b) research on ferroresonant waveforms obtained from full scale measurements in power grids, -investigation on system configurations that should be used to avoid ferroresonance occurrence as well as development of new mitigation methods on ferroresonance effects [22], -signal processing methods for analyzing ferroresonance voltage or current waveforms [23][24][25]: a) Short Time Fourier Transform (STFT), b) wavelet transform, -parametric and statistical analyses of ferroresonance parameters jointly with the analysis of investigated system parameters [23].…”

Section: Ferroresonance In Power Gridsmentioning

confidence: 99%

Archives of Electrical Engineering

Polewaczyk¹,

Robak²,

Szewczyk³

2019

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This paper presents a study on ferroresonance occurring in a high voltage 400 kV transmission grid due to energization of power transformer under no-load conditions. The system scenarios analyzed in the present paper are considered as critical for development and modernization plans as currently announced by the national grid operator in Poland. The PSCAD simulation model was developed and applied for several study cases of a system with double-circuit arrangement of a transmission line. It is shown that the ferroresonant oscillations can be initiated by two-phase switching operation of a line circuit breaker. The impact of the double-circuit length on the ferroresonance mode and severity is demonstrated with the use of the Poincaré map analysis and Short Time Fourier Transform. It is demonstrated that the length of the transmission line that is mutually coupled in the double-circuit arrangement has a significant impact on the ferroresonance occurrence and on its mode. As the ferroresonance can pose severe threat to the power system components due to the severe overvoltage and overcurrent oscillations, the analysis presented in this paper demonstrates the necessity of the ferroresonance analyses for any re-designed transmission system.

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