Frequency domain transformer model for electromagnetic transient analysis of networks

Bilal, Ghassan; Villanueva-Ramirez, Juan M.; Gómez, Pablo

doi:10.1109/naps.2017.8107183

Cited by 3 publications

(1 citation statement)

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“…The above considerations concerning the need for threephase analytical models for a proper analysis of transients in a three-phase circuit hold for a specific component like the threephase transformer. The relevant technical literature is very rich in contributions concerning numerical modeling of three-phase transformers oriented to transient analysis (e.g., [8]- [17]), but as far as analytical approaches are considered, the conventional approach foresees the use of a simple single-phase equivalent of the transformer. As mentioned before, such approach cannot provide the complete time-domain behavior of a three-phase transformer transient since the three phase variables (i.e., the voltages and the currents of the three phases) in general show different time-domain behaviors (e.g., different peak values).…”

Section: Introductionmentioning

confidence: 99%

Space Vector Transients of Three-phase Transformers

Bellan

2020

International Journal of Circuits, Systems and Signal Processing

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This paper is devoted to the transient analysis of three-phase transformers by means of the space vector tool. Space vector definition is based on the Clarke transformation, operating in the time domain. Thus, the space vector is better suited to transient analysis when compared with approximate approaches based on the phasor symmetrical-component transformation. Space-vector equivalent circuits are derived for three-phase transformers with Wye and Delta connections. A case study, consisting in the transient due to a capacitor bank insertion, shows that the proposed space-vector approach can clearly evidence the asymmetrical transient behavior of the phase variables in terms of different peak levels and oscillations amplitude.

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Section: Introductionmentioning

confidence: 99%