Development of browne's arc model for HTS applications

2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)

et al. 2018

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Circuit breaker is vital and sophisticated part of protection accessories in power system. An arc model of a circuit breaker can determine the dynamic and static feature for arcing directed by a power circuit. The idea of HTS Circuit Breaker (HTSCB) evolves with the concept of HTS contacts in liquid nitrogen arc medium. Browne's HTS arc model for HTSCB and its characteristics developed and investigated earlier in order to address the arcing limitations of existing circuit breakers for HTS power applications. The model is mainly developed from the classical arcing equations. In this paper, the same arc model is investigated for the functionality of arc characteristics simulation response. The arc model has closed relationship with time constant, reference voltage and other parameters. The parameter sweep technique for minimizing the arcing time of HTS arc model parameters shows the trend of arcing voltage and current from the change of arc model's parameters. By using the final parameter values a test bed environment is developed in MATLAB® Simulink to perform the interruption scenario of HTSCB. The results deal with different arcing terms like arc current peak, arcing time, fault duration, transient results of HTS arc model and the wave form transition tendency. Finally, the results are compared with the experimental analysis. It is discovered that there is significant level of agreement between experimental and simulated results.

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“…A physical arc model is often incredibly complex to operate. An arc model can be utilised to investigate overall arc behaviour in details throughout the interruption [6].…”

Section: Development Of Hts Black Box Arc Modelmentioning

confidence: 99%

Section: Development Of Hts Black Box Arc Modelmentioning

confidence: 99%

Section: A Fault Analysismentioning

confidence: 99%

“…(ii) The power input for the arc channel recorded is nearly zero value. (iii) The arc voltage recorded is constant for the high current period [6].…”

Section: A Fault Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Arcing behaviour of a potential high-temperature superconductor (HTS) circuit breaker arc model

2018 IEEE International Conference on Industrial Electronics for Sustainable Energy Systems (IESES)

et al. 2018

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Mitigation of residual flux for high-temperature superconductor (HTS) transformer by controlled switching of HTS breaker arc model

2017 IEEE Innovative Smart Grid Technologies - Asia (ISGT-Asia)

et al. 2017

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AC circuit breaker's controlled switching is a popular method to reduce dielectric and thermal stresses during switching of transformers, transmission lines, reactor and shunt capacitors. The magnitude of inrush current often reaches five to nine times of rated magnetizing current and thus it affects the network stability. Particularly, it affects the superconductivity of HTS transformer. Moreover, a residual flux is developed in HTS transformer due to high inrush current. The amount of flux may increase to a very high value that has direct impact to have a very high transient inrush current. This paper presents inrush current mitigation phenomena in a single-phase HTS transformer by controlled switching of HTS breaker arc model. The inrush current phenomenon is modeled for a single-phase HTS transformer in this paper. The mitigation of inrush current is restrained to a lower level by the reclosing of a new type of arc model named HTS breaker arc model and the residual flux also minimized. The calculating method is established on the investigation of fast switching timing and characteristics of the HTS breaker arc model.

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Failure detection algorithm for High-Temperature Superconductor (HTS) breaker arc model

2018 IEEE Power &Amp; Energy Society Innovative Smart Grid Technologies Conference (ISGT)

et al. 2018