Proposed New Structure for Fault Current Limiting and Power Quality Improving Functions

Firouzi, Mehdi; Gharehpetian, Gevork B.; Pishvaie, M.

doi:10.24084/repqj08.216

Cited by 14 publications

(2 citation statements)

References 8 publications

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“…In the reference (Deng et al, 2019), two-stage matrix converters are used in flexible power transformers and predictive control strategies are proposed for this topology, which allows the flexible power transformer to compensate for voltage amplitude peaks and troughs as well as voltage phase angle variations during transmission of power. Reference (Firouzi et al, 2010) proposes a topology that combines a bridge fault current limiter and a power converter. Although this device also improves power quality, unlike FDTs, this topology employs a diode bridge circuit and has less regulation flexibility than FDTs.…”

Section: Introductionmentioning

confidence: 99%

Research on additional damping control strategy of flexible distribution transformer

Guo,

Wang,

Zhan

et al. 2024

Front. Energy Res.

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Disturbances to the power system may lead to relative swing between synchronous generator rotors, causing low-frequency oscillation problems in the absence of damping. In this article, based on the single-machine infinity system containing flexible distribution transformer and synchronous generator, the linearized state equations of the system is deduced by the small-signal modeling. The mechanism of flexible distribution transformer on the rotor speed of synchronous generator is analyzed. The influence factors of flexible distribution transformer on the rotor speed of synchronous generator are analyzed. The equation of the additional damping provided by the flexible distribution transformer to this system is constructed. It was concluded that by controlling the output voltage of the regulating converter in the flexible distribution transformer, the rotor speed of the synchronous generator can be varied to increase the system damping. An additional damping control strategy for flexible distribution transformer is proposed. The simulation verifies that the proposed control strategy can effectively suppress the oscillation amplitude of each electrical quantity and shorten the oscillation duration when the system is subjected to large and small perturbations. The proposed additional damping control strategy of flexible distribution transformer can effectively improve the damping of the system and alleviate the problem of low frequency oscillation.

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Section: Introductionmentioning

confidence: 99%

Research on additional damping control strategy of flexible distribution transformer

Guo,

Wang,

Zhan

et al. 2024

Front. Energy Res.

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“…Many types of fault current limiter have been developed in the past few years [2][3]. Superconducting fault current limiter (SFCL) is the most inventive fault current limiting device [4].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of power system capacity with existing switchgear using superconducting fault current limiter

Biswas

Khan

2013

2013 International Conference on Informatics, Electronics and Vision (ICIEV)

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Superconducting fault current limiter is an attractive electronic device to solve the problem of very high fault current in the power system. In this paper, the performance of enhanced system capacity with existing switchgear by superconducting fault current limiter is studied. At first, a resistive type SFCL is modeled in Simulink. A three phase system with a nominal capacity is designed and then it is replaced by higher capacity keeping switchgear unchanged. Finally, the SFCL is introduced in the higher capacity system. Fault current in this system is limited by SFCL to the level of the presented switchgear. Thus, it is revealed that the outstanding current limiting performance of SFCL can be used to limit the fault to the level of the existing switchgear if the system capacity is improved.

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Mitigation of Fault in 5 Bus System with Switch Type Voltage Controlled FCL

Sridhar¹,

Rao

Singh³

2015

Lecture Notes in Electrical Engineering

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Proposed New Structure for Fault Current Limiting and Power Quality Improving Functions

Cited by 14 publications

References 8 publications

Research on additional damping control strategy of flexible distribution transformer

Research on additional damping control strategy of flexible distribution transformer

Enhancement of power system capacity with existing switchgear using superconducting fault current limiter

Mitigation of Fault in 5 Bus System with Switch Type Voltage Controlled FCL

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