Suppression of ferroresonance using passive memristor emulator

Poornima, S.

doi:10.1088/1674-1056/abd7e0

Cited by 4 publications

(1 citation statement)

References 29 publications

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“…(2)Analysis Of The Working Principle Of The Arc And Harmonic Elimination Device When there is switching overvoltage or atmospheric overvoltage in the system, the combined type of overvoltage protector limits the overvoltage within the allowable range of system insulation [9] .…”

Section: Analysis Of Accidentmentioning

confidence: 99%

Research on the Operation Specification of Arc Suppression and Resonance Elimination Device in Water Supply Distribution System

Shen¹,

Sun²,

Wang³

et al. 2022

J. Phys.: Conf. Ser.

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Arc suppression and resonance elimination device was used more and more widely in distribution power systems. The performance for limiting overvoltage and eliminating arc are better than arc suppression coil. But when the device not work properly,it would cause more great risk on the safe of the distribution network. It was analysed that an event of power failure of pair circuits distribution network installed with arc suppression and resonance elimination device. As an example, the simulation model was established with PSCAD software, and the working mechanism of the device was discussed. The overvoltage risk of the distribution system for water supply pump station was analysed. According to the analysing results, it is proposed that routine maintenance method and typical configuration of the device.

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Section: Analysis Of Accidentmentioning

confidence: 99%

Research on the Operation Specification of Arc Suppression and Resonance Elimination Device in Water Supply Distribution System

Shen¹,

Sun²,

Wang³

et al. 2022

J. Phys.: Conf. Ser.

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Subharmonic ferroresonance mitigation in capacitive voltage transformer using meminductor

Poornima

2024

Electr Eng

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Memristor emulator – a nonlinear load for reduction of ferroresonance in a single-phase transformer

Sridharan

Sugumaran

2020

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Purpose An annual substation equipment failure report says 3/7 capacitive voltage transformer (CVT) got damaged because of ferroresonance overvoltage. The conventional mitigation circuit fails to protect the transformer as the overvoltage may fall in the range between 2 and 4 per unit. It is necessary to develop a device to suppress the overvoltage as well as overcurrent of the CVT. This study aims to propose the suitability of memristor emulator as a mitigation circuit for ferroresonance. Design/methodology/approach The literature implies that a nonlinear circuit can protect the transformer against ferroresonance. An attempt is made with a memristor emulator using Operational Amplifier (OPAMP) for the mitigation of ferroresonance in a prototype transformer. The circuit is simulated using PSpice and validated for its ideal characteristics using hardware implementation. The nonlinear memductance is designed which is required to mitigate the ferroresonance. The mitigation performance has been compared with conventional method along with fast Fourier transform (FFT) analysis. Findings While the linear resistor recovers the secondary voltage by 74.1%, the memristor emulator does it by 82.05% during ferroresonance. Also, the total harmonic distortion (THD) of ferroresonance signal found to be 22.06% got improved as 2.56% using memristor emulator. Research limitations/implications The suitability of memristor emulator as a mitigation circuit for ferroresonance is proposed in this paper. As ferroresonance occurs in instrument transformers which have extra high voltage (EHV) rated primary windings and (110 V/[110 V/1.732]) rated secondary windings, the mitigation device is proposed to be connected as a nonlinear load across the secondary windings of the transformer. This paper discusses the preliminary work of ferroresonance mitigation in a prototype transformer. The mitigation circuit may have memristor or meminductor for ferroresonance mitigation when they are commercially available in future. Practical implications The electronic component-based memristor emulator may not work at 110 V practically as they may be rated at low power. Hence, chemical component-based memristor emulator was developed to do the same. The authors like to clarify that the memristor will be a solution for ferroresonance in future not the memristor emulator circuit. Social implications With the real form of memristor, the transistor world will be replaced by it and may have a revolution in the field of electronics, VLSI, etc. This contribution attempts to project the use of memristor in a smaller scale in high-voltage engineering. Originality/value The electronic component-based memristor emulator is proposed as a mitigation circuit for ferroresonance. The hypothesis has been verified successfully in a prototype transformer. Testing circuit of memristor emulator involves transformer, practically. The mitigation performance has been compared with conventional method technically and justified with FFT analysis.

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Suppression of ferroresonance using passive memristor emulator

Cited by 4 publications

References 29 publications

Research on the Operation Specification of Arc Suppression and Resonance Elimination Device in Water Supply Distribution System

Research on the Operation Specification of Arc Suppression and Resonance Elimination Device in Water Supply Distribution System

Subharmonic ferroresonance mitigation in capacitive voltage transformer using meminductor

Memristor emulator – a nonlinear load for reduction of ferroresonance in a single-phase transformer

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