DC reactor effect on bridge type superconducting fault current limiter during load increasing

Hoshino, Tsutomu; Salim, Khosru M; Nishikawa, Massanori; Muta, Itsuya; Nakamura, Taketsune

doi:10.1109/77.920232

Cited by 39 publications

(16 citation statements)

References 2 publications

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“…Some researchers are developing such devices without using any current source. However, there are some disadvantages which we have pointed out such as voltage sag under load-increasing condition [6].…”

Section: Introductionmentioning

confidence: 91%

Simulation and Analysis for New Bridge-Type High Temperature Superconducting Fault Current Limiter

Chu

Wang

Qiu

2012

2012 Sixth International Conference on Electromagnetic Field Problems and Applications

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In this paper, a bridge-type high temperature superconducting (HTS) fault current limiter (FCL) is presented. The working principle of this HTS FCL is analyzed in detail. Two anti-parallel coils which are made of HTS tapes are main parts of the FCL. The superconducting FCL (SFCL) has no influence on power system in normal working state because the equivalent resistance and inductance of the SFCL are very small. However when a fault occurs, the SFCL may provide large resistance and inductance to limit the fault current due to quench of one coil. Considering heat is generated in one of coils when superconducting/normal (S/N) transition occurs, the coil can be isolated before too much heat is generated. The design of the SFCL is carried out, and simulation computation and analysis were completed so as to verify the SFCL design. The results reveal that the bridge-type HTS FCL has rapid response to limit fault current.

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Section: Introductionmentioning

confidence: 91%

Simulation and Analysis for New Bridge-Type High Temperature Superconducting Fault Current Limiter

Chu

Wang

Qiu

2012

2012 Sixth International Conference on Electromagnetic Field Problems and Applications

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“…The existing power grids will experience, in the near future, a growing burden due to an upsurge in electricity demand and will experience an ever-growing penetration of distributed power generation, which are factors that will contribute to a higher incidence of fault current levels. The massive growth of gird interconnection and integration of distributed generators (DGs) increase the network fault current level [1][2][3][4]. The solid-state fault current limiter (FCL) is a fast protection device that includes a DC reactor and solid-state switches [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

A Multi-Inductor H Bridge Fault Current Limiter

et al. 2019

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Current power systems will suffer from increasing pressure as a result of an upsurge in demand and will experience an ever-growing penetration of distributed power generation, which are factors that will contribute to a higher of incidence fault current levels. Fault current limiters (FCLs) are key power electronic devices. They are able to limit the prospective fault current without completely disconnecting in cases in which a fault occurs, for instance, in a power transmission grid. This paper proposes a new type of FCL capable of fault current limiting in two steps. In this way, the FCLs' power electronic switches experience significantly less stress and their overall performance will significantly increase. The proposed device is essentially a controllable H bridge type fault current limiter (HBFCL) that is comprised of two variable inductances, which operate to reduce current of main switch in the first stage of current limiting. In the next step, the main switch can limit the fault current while it becomes open. Simulation studies are carried out using MATLAB and its prototype setup is built and tested. The comparison of experimental and simulation results indicates that the proposed HBFCL is a promising solution to address protection issues.

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“…Bridge types SFCL has zero impedance under the normal condition and large impedance under the fault condition the same as other FCLs. But its advantage is fault current limitation without delay and smoothing of surge current waveform [12,13]. Therefore, its inductance current gradually increases and so the fault current and accordingly the voltage sags increase during fault.…”

Section: Introductionmentioning

confidence: 99%