Analytical solution of serial ferroresonance triggered by circuit breaker operation in solidly grounded power grids

Wang, Bin; Zhang, Chao; Xia, Yu; Zhang, Fan

doi:10.1016/j.ijepes.2023.109447

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…Additionally, the secondary winding current, i sec , can be mathematically determined using Equation (11), from which the magnetic flux, ϕ s , associated with the secondary winding can be derived from the secondary side voltage, v s , and the voltage across the capacitor unit in SSFSC, V c , as represented in Equation (12).…”

Section: Analytical Study Of Ssfscmentioning

confidence: 99%

“…The inherent properties of the capacitances and inductances involved in ferroresonance, along with the frequency, magnitude of the supply voltage, and initial conditions, are crucial parameters that influence the occurrence of ferroresonance [9]. This phenomenon can be initiated by several transient events, including short circuit faults, load rejection, the (de-)energization of transformers, and circuit breaker switching [10,11]. It is important to stress that ferroresonance can be described through nonlinear differential equations, which can be analyzed utilizing various methods, including the harmonics balance method, phase plane diagram, and bifurcation theory [12,13].…”

Section: Introductionmentioning

confidence: 99%

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Innovative Solid-State Ferroresonance-Suppressing Circuit for Voltage Transformer Protection in Wind Generation Systems

Bakhshi,

Bigdeli,

Moradlou

et al. 2023

Energies

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Ferroresonance, as an undesirable disturbance, leads to significant overvoltage and distorted waveforms. This phenomenon can be highly damaging to voltage transformers and other parallel-connected equipment and can entail catastrophic consequences. This paper aims to design and study a solid-state ferroresonance-suppressing circuit (SSFSC) to protect voltage transformers (VTs) together with other parallel-connected equipment in wind generation systems from the adverse effects of the ferroresonance phenomenon. The proposed structure consists of low-voltage circuits, including power IGBTs. The excellent performance of the proposed SSFSC in suppressing ferroresonance overvoltage in wind generation VTs has been authenticated by analyses conducted utilizing a wind generation system model. In order to validate the performance of the proposed SSFSC, detailed analytical studies and time-domain simulations have been carried out employing a MATLAB/Simulink environment. The results verify that the proposed SSFSC can effectively suppress ferroresonance phenomena in VTs and mitigate their accompanying overvoltages with a high operational speed.

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Section: Analytical Study Of Ssfscmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Innovative Solid-State Ferroresonance-Suppressing Circuit for Voltage Transformer Protection in Wind Generation Systems

Bakhshi,

Bigdeli,

Moradlou

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…Unlike resonance, ferroresonant oscillations are related not only to the system frequency, but also to other parameters like the magnetic flux of the transformer, damping resistors, and reactors; the system voltage magnitude; and the switching transient and steady state. Several studies with respect to the ferroresonant oscillation phenomenon, which is caused by nonlinear characteristics of the circuit in power transformers, have been widely reported in the literature [6][7][8]. Djebli et al [9] established an accurate dynamic model of a transformer considering the dependence of frequency and peak induction, and the impact of switching time and the eddy current in the core lamination on ferroresonant oscillations was studied.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis and Suppression Strategy Research on a Novel Fractional-Order Ferroresonance System

Yang,

Fan,

et al. 2023

Fractal Fract

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Ferroresonance is characterized by overvoltage and irregular operation in power systems, which can greatly endanger system equipment. Mechanism analysis of the ferroresonance phenomenon depends mainly on model accuracy. Due to the fractional-order characteristics of capacitance and inductance, fractional-order models are more universal and accurate than integer-order models. A typical 110 kV ferroresonance model is first established. The influence of the excitation amplitude on the dynamic behavior is analyzed. The fractional-order ferroresonance model is then introduced, and the effects of the fractional order and flux-chain order on the system’s motion state are studied via bifurcation diagrams and phase portraits. In order to suppress the nonlinear dynamic behavior of fractional-order ferroresonance systems, a novel fractional-order fast terminal sliding mode control method based on finite-time theory and the frequency distributed model is proposed. A new fractional-order sliding mode surface and control law using a saturation function are developed. A robust fractional-order sliding mode controller could achieve finite-time stabilization and tracking despite model uncertainties and external disturbances. Compared with conventional sliding mode methods, the simulation results highlight the effectiveness and superiority. The research provides a theoretical basis for ferroresonant analysis and suppression in large-scale interconnected power grids.

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Single Phase Ferroresonance Detection and Type Recognition in Solidly Grounded Power Grid

Wang,

Zhang,

Xia

et al. 2024

2024 IEEE 7th International Electrical and Energy Conference (CIEEC)

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Analytical solution of serial ferroresonance triggered by circuit breaker operation in solidly grounded power grids

Cited by 4 publications

References 23 publications

Innovative Solid-State Ferroresonance-Suppressing Circuit for Voltage Transformer Protection in Wind Generation Systems

Innovative Solid-State Ferroresonance-Suppressing Circuit for Voltage Transformer Protection in Wind Generation Systems

Dynamic Analysis and Suppression Strategy Research on a Novel Fractional-Order Ferroresonance System

Single Phase Ferroresonance Detection and Type Recognition in Solidly Grounded Power Grid

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