Abstract
Electric arc is a discharge phenomenon caused by particular electrical events and arc produced facilities in power system, for example the occurrence of short-circuit fault in feeders and the use of electric arc furnace for steel-making. All of these electric arcs have a highly nonlinear nature and can be considered as a significant source of power quality problems. To investigate the impacts of the electric arcs on power quality studies the development of the electric arc models for simulation analysis is became necessary. This paper thus presents the use of different one-dimensional interpolation methods for modelling the alternating current electric arc. The performances of different methods are compared by simulation results that are derived from the modelling of an alternating current electric arc furnace load and a low-frequency fluorescent tube.
Highlights
It is known that computer-aided simulation analysis is one of the most effective ways to assess the power quality (PQ) problems in power system
To provide an efficient and easy work modelling approach for the electric arc on PQ study, especially for the harmonic problem analysis, this paper presents the comparative study of using one-dimensional interpolation methods for electric arc modelling
Measured electric arc data that are collected from an alternating current (AC) electric arc furnace (EAF) and a traditional T9 lowfrequency FT are used for simulations and model validations
Summary
It is known that computer-aided simulation analysis is one of the most effective ways to assess the power quality (PQ) problems in power system. Some intelligent methods such as artificial neural network and wavelet transform have been proposed for specified studies and the performance of them are proved to be effective; the structures of these models are more complicated and is not be carried out on simulation. To provide an efficient and easy work modelling approach for the electric arc on PQ study, especially for the harmonic problem analysis, this paper presents the comparative study of using one-dimensional interpolation methods for electric arc modelling. The performance of different interpolation models are compared by simulation results for the assessments of harmonic distortions on the AC EAF and FT.
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