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Design and Analysis of a kA-Class Superconducting Reactor
- Source :
- IEEE Transactions on Applied Superconductivity. 24:1-4
- Publication Year :
- 2014
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2014.
-
Abstract
- —This paper presents the designs of kiloampere-classreactors with high temperature superconducting (HTS) BSCCOtapes. The HTS solenoidal windings of the 100 A-class andkiloampere-class reactors consist of 34 coil layers and 136 coilturns in total. The structural design and performance evaluations,including critical current and ac loss calculations are discussedfor a single-phase grounding fault case and compared with a con-ventional copper reactor. The method to apply the HTS tapes andthe principal features of the HTS reactors have been theoreticallyidentified. Index Terms — AC loss, BSCCO, current limiting reactor, neu-tral grounding reactor, superconducting reactor. I. I NTRODUCTION R EACTORS ARE widely used in modern power systems,which provide functions such as limiting currents, com-pensation of power, and inductive connection to ground. Powerquality and reliability problems are normally caused by theabnormal operations of large-scale equipments and the short-circuit faults caused by the power system itself. High tempera-ture superconductors (HTSs) have been successfully applied inthe advanced reactor developments. As an example, a numberofreactor-basedsuperconductingfaultcurrentlimiters(SFCLs)including the saturated iron-core type [1], [2], transformer type[3], [4] reactor type [5], [6], and non-inductive type [7] aremadeavailabletoreducethefaultcurrentlevelsontransmissionand distribution networks.The power system faults mainly include three-phase shortcircuit, two-phase short circuit, two-phase grounding short cir-cuit and single-phase grounding short circuit. The single-phasegrounding faults, for example, account for about 91.23% of thetotal number of power system faults in the 6434 power trans-mission lines of 220 kV Chinese power grid in 2008. It meansthat single-phase grounding faults need to be solved urgently toimprove the whole power system quality and reliability [8].In the neutral indirectly grounded power systems, the single-phase grounding fault occurs most frequently. The three-phaseline voltages still keep symmetrical states and have negligibleimpact to the local power equipments. Therefore, the powersystem is allowed to continue running up to few hours before
- Subjects :
- business.industry
Ground
Computer science
Electrical engineering
Superconducting magnetic energy storage
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
law.invention
Electric power system
Electromagnetic coil
law
Electrical and Electronic Engineering
business
Transformer
Short circuit
Voltage
Current limiting reactor
Subjects
Details
- ISSN :
- 15582515 and 10518223
- Volume :
- 24
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Applied Superconductivity
- Accession number :
- edsair.doi...........7624398707b92877214a8ccccc65c8fc
- Full Text :
- https://doi.org/10.1109/tasc.2014.2340461