Development of a 22 kV/6.9 kV single-phase model for a 3 MVA HTS power transformer

Funaki, K.; Iwakuma, Masataka; Komori, Kazuhiro; Hara, Masanori; Suchiro, J.; Ito, Tetsuo; Takata, Yasuyuki; Bohno, T.; Nose, S.; Konno, Masayuki; Yagi, Y.; Maruyama, Hiroshi; Ogata, Takayuki; Yoshida, Shigeru; Ohashi, Kazuhito; Kimura, Hiroyuki; Tsutsumi, K.

doi:10.1109/77.920079

Cited by 73 publications

(16 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…So HTS transformer is expected to be one of the superconducting power devices that will be installed in the power system at the first stage of commercialization. And many kinds of development program of HTS transformers are in progress by Manuscript [4]. And solenoid type winding is applied to the most of winding of HTS transformer in progress so far and being used.…”

Section: Analysis Of Perpendicular Magnetic Fields On a 1 Mva Hts Tramentioning

confidence: 99%

Analysis of Perpendicular Magnetic Fields on a 1 MVA HTS Transformer Windings With Flux Diverters

Kim

Kim²,

Min³

et al. 2004

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

In high temperature superconducting (HTS) transformer with double pancake windings, the perpendicular component of leakage magnetic flux density (B r ) applied to HTS tapes of double pancake windings is larger than that of solenoid windings, which acts as a cause to decrease the critical current in HTS tape and increase AC loss. In this paper, in order to reduce the B r applied to HTS windings, the use of ferrite flux diverters is presented. Flux diverters are located in between the primary windings and the secondary windings, and must be made of low-loss materials to minimize the heat. And electromagnetic analysis of a single-phase 1 MVA 22.9 kV/6.6 kV HTS transformer with flux diverters in HTS windings was accomplished. The variation of B r applied to the secondary windings and magnetic flux density in flux diverters were analyzed by changing their relative permeability of flux diverters respectively. Suitable relative permeability of flux diverters to reduce B r applied to HTS windings was selected, considering flux diverter losses by increment of B in flux diverters.Index Terms-Double pancake winding, flux diverter, HTS transformer.

show abstract

Section: Analysis Of Perpendicular Magnetic Fields On a 1 Mva Hts Tramentioning

confidence: 99%

Analysis of Perpendicular Magnetic Fields on a 1 MVA HTS Transformer Windings With Flux Diverters

Kim

Kim²,

Min³

et al. 2004

IEEE Trans. Appl. Supercond.

View full text Add to dashboard Cite

show abstract

“…The HTS transformer was connected to a distribution line at Imajuku substation (Kyushu Electric Power Co. Inc.). The test results revealed the HTS power transformer's applicability to a power grid network [1,2].…”

Section: Introductionmentioning

confidence: 97%

A study for designing YBCO power transformer

Hayashi

Okamoto

Harimoto

et al. 2007

Physica C: Superconductivity and its Applications

Self Cite

View full text Add to dashboard Cite

“…HTS transformer is considered as one of the most commercially valuable superconducting power equipment because of its higher energy efficiency, lighter weight, smaller size, and environmental friendliness compared to its conventional counterparts [1]. So far, most research groups focuses on the experimental studies on full core transformer [2][3][4][5][6]. There have been few comprehensive studies on HTS air core transformer and no publications about the characteristics analysis of HTS air core transformer using finite element method.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical study on an HTS air core transformer with pancake structure

Sheng

et al. 2015

2015 IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (ASEMD)

View full text Add to dashboard Cite

This paper presents the characteristic tests and electromagnetic analysis of a single-phase high temperature superconducting (HTS) air core transformer prototype. Single pancake (SP) windings with GdBCO coated conductors were used in this transformer. The primary windings were six SPs connected in series and the secondary windings were three SPs connected in parallel. Fundamental, loss and critical current characteristics were obtained by no-load and load tests. A fieldcircuit coupled model built in COMSOL was used to analyze the electromagnetic characteristic of this transformer. The experiment results were in consistent with the simulation values. The numerical model was validated, and could be applied in engineering. Finally, the circulating currents with and without an iron core were calculated. The transformer with an iron core has a smaller circulating current than that of without an iron core.

show abstract

Development of a 22 kV/6.9 kV single-phase model for a 3 MVA HTS power transformer

Cited by 73 publications

References 3 publications

Analysis of Perpendicular Magnetic Fields on a 1 MVA HTS Transformer Windings With Flux Diverters

Analysis of Perpendicular Magnetic Fields on a 1 MVA HTS Transformer Windings With Flux Diverters

A study for designing YBCO power transformer

Experimental and numerical study on an HTS air core transformer with pancake structure

Contact Info

Product

Resources

About