Simulation of Chain of Quenches on Toroidal HTS-SMES Taking Account of $B-J-\theta$ Characteristics

Oga, Y.; Noguchi, So; Igarashi, Hajime

doi:10.1109/tasc.2011.2177429

Cited by 5 publications

(5 citation statements)

References 6 publications

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“…In the previous investigation [1], we assumed that the temperature and the resistance of HTS coil were constant. It was, however, confirmed that a transition to a normal state took too long time to ignore the change of the temperature and the resistance.…”

Section: Thermal Analysismentioning

confidence: 99%

“…In the numerical simulation, it was assumed that an arbitrary superconducting coil element entirely transitioned into a normal state as an initial condition, and the critical current and the temperature of all the superconducting coil elements were constant. The simulation results gave a suggestion on the chain of normalstate transitions after transitioning one of the superconducting coil elements into a normal state [1], [2]. The chain of the normal-state transitions is mainly due to the high inductance of the toroidal HTS-SMES coils.…”

Section: Introductionmentioning

confidence: 96%

“…W E PREVIOUSLY investigated a chain of normal-state transitions on toroidal HTS-SMES consisting of some superconducting coil elements by means of an electromagnetic numerical simulation with a circuit analysis [1]. In the numerical simulation, it was assumed that an arbitrary superconducting coil element entirely transitioned into a normal state as an initial condition, and the critical current and the temperature of all the superconducting coil elements were constant.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Normal Transition Simulation on Toroidal HTS-SMES Considering Electromagnetic and Thermal Characteristics

Oga

Noguchi

Igarashi

2013

IEEE Trans. Appl. Supercond.

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We previously investigated the stability of toroidal HTS-SMES magnets by simulation. The simulation took an electric circuit and a magnetic field phenomenon into account. However, a thermal condition is an important factor in investigating the behavior of an HTS-SMES magnet. Therefore, we have improved the previously developed simulation code to consider the thermal phenomenon. With the newly developed numerical simulation, we have investigated a time transition of a coil current, a critical current, and a temperature in the toroidal HTS-SMES magnets. As a result, it was confirmed that the temperature of all the HTS coils rose up quickly one after another, after the temperature at a certain local area of one HTS coil was increased.

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Section: Thermal Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Normal Transition Simulation on Toroidal HTS-SMES Considering Electromagnetic and Thermal Characteristics

Oga

Noguchi

Igarashi

2013

IEEE Trans. Appl. Supercond.

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“…We have previously investigated the overturning force in the chain of normal-state transitions by a simulation based on E a magnetic field analysis and an electrical circuit analysis [8].…”

Section: Introductionmentioning

confidence: 99%

“…The thermal behavior was not considered in [8]. However, it becomes obvious that the thermal behavior affects the behavior of the overturning force during the chain of normalstate transitions [9].…”

Section: Introductionmentioning

confidence: 99%

Overturning Force Simulation on Normal-State Transition of Toroidal HTS-SMES Taking Into Account an Electromagnetic and Thermal Condition

Noguchi

Itoh

Oga

et al. 2014

IEEE Trans. Appl. Supercond.

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Abstract-Recently, many investigations about toroidal hightemperature superconducting magnetic energy storage systems have been reported. Some papers reported that there was a possibility that the chain of normal-state transitions occurred on the toroidal HTS-SMES magnet by normal-state-transition simulation. Hence, it should also be investigated that the behavior of unbalanced electromagnetic force during the sequential normal-state transition of the superconducting coil elements. In this paper, we have developed a simulation code to investigate the behavior of the overturning electromagnetic force on the toroidal HTS-SMES system during the normal-state transition. The magnetic field and the circuit analysis were coupled and solved in the previously developed simulation code. Additionally, in order to investigate the normal-state transition more accurately, we also take the thermal analysis into account. Carrying out the newly developed numerical simulation, we investigate the time transition of the transport current, the overturning force, and the magnetic field applied to the superconducting coil elements for a few toroidal HTS-SMESs.  Index Terms-Electromagnetic force, HTS-SMES, thermal analysis, superconducting magnet.

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Bibliography of FACTS 2012: IEEE working group report

Rahman

Mahendra

Varma

et al. 2013

2013 IEEE Power &Amp; Energy Society General Meeting

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Simulation of Chain of Quenches on Toroidal HTS-SMES Taking Account of $B-J-\theta$ Characteristics

Cited by 5 publications

References 6 publications

Normal Transition Simulation on Toroidal HTS-SMES Considering Electromagnetic and Thermal Characteristics

Normal Transition Simulation on Toroidal HTS-SMES Considering Electromagnetic and Thermal Characteristics

Overturning Force Simulation on Normal-State Transition of Toroidal HTS-SMES Taking Into Account an Electromagnetic and Thermal Condition

Bibliography of FACTS 2012: IEEE working group report

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