Parameter identification of dc black-box arc model using non-linear least squares
- Title
- Parameter identification of dc black-box arc model using non-linear least squares
- Author
- 이방욱
- Keywords
- dc arc feasibility; circuit-breaking arcs; circuit breakers; optimisation; power system faults; DC circuit breakers; DC arc characteristics; DC arc analysis; ac arc characteristics; simulate dynamic arc-circuit interaction; black-box arc model; black-box model; dc arc current waveform; Schwarz model parameters; black-box modelling
- Issue Date
- 2019-03
- Publisher
- Institution of Engineering and Technology
- Citation
- Journal of Engineering, NO. 16, Page. 2202-2206
- Abstract
- The black-box arc model is known to be a useful technique to simulate dynamic arc-circuit interaction by reflecting arc characteristics. Existing researches have shown that the black-box model has been widely used to analyse the ac arc characteristics of SF6 and air circuit breakers. Due to the enormous energy and steep rise rate (di/dt) during dc fault, it is important to consider dc arc characteristics. However, there are no examples of black-box models for dc circuit breakers utilised in railway systems and dc microgrid. In this study, the applicability of the black-box model, which was applied to the existing ac arc analysis, was verified for the dc arc analysis. Black-box modelling is applied to datasheet of industrial low-voltage circuit breakers and parametric sweep method was used to select Schwarz model parameters considering the tendency of dc arc current waveform for the dc pole-to-pole fault. The authors also applied the Levenberg-Marquardt algorithm, which is the most extensively used for the optimisation of functional parameters, to the Schwarz model for accurate and reliable arc modelling. As a result, the dc arc feasibility of the black-box model was analysed through simulation results, and a model optimisation technique was proposed.
- URI
- https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/joe.2018.8369https://repository.hanyang.ac.kr/handle/20.500.11754/178950
- ISSN
- 2051-3305
- DOI
- 10.1049/joe.2018.8369
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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- 3577_이방욱.pdfDownload
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