Publication

Mixed-signal power system emulator extension to solve unbalanced fault transient stability analysis

Sidi-Rachid Cherkaoui, Maher Kayal, Theodoros Kyriakidis, Guillaume Olivier Lanz
2014
Conference Papers

Résumé

This paper presents the extension of a platform originally devoted to symmetrical transient stability analysis, into the domain of unbalanced faults. The aim of this solver is to increase the speed of dynamic stability assessment for power systems. It is based on an analog representation of the grid alongside dedicated digital resources for the simulation of the models of power network components. Using the symmetrical components theory, this platform can be adapted to handle unsymmetrical disturbances, such as single-phase-to-ground faults, and the tripping of single-phase circuit breakers.

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https://infoscience.epfl.ch/entities/publication/1ad3472a-4d7a-4355-854a-a8df5c8ba109

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Sidi-Rachid Cherkaoui, Maher Kayal, Theodoros Kyriakidis, Guillaume Olivier Lanz
2014
Conference Papers

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/1ad3472a-4d7a-4355-854a-a8df5c8ba109

À propos de ce résultat

Concepts associés (22)

Residual-current device

A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) is an electrical safety device that quickly breaks an electrical circuit with leakage current to ground. It is to protect equipment and to reduce the risk of serious harm from an ongoing electric shock. Injury may still occur in some cases, for example if a human receives a brief shock before the electrical circuit is isolated, falls after receiving a shock, or if the person touches both conductors at the same time.

Electrical fault

In an electric power system, a fault or fault current is any abnormal electric current. For example, a short circuit is a fault in which a live wire touches a neutral or ground wire. An open-circuit fault occurs if a circuit is interrupted by a failure of a current-carrying wire (phase or neutral) or a blown fuse or circuit breaker. In three-phase systems, a fault may involve one or more phases and ground, or may occur only between phases. In a "ground fault" or "earth fault", current flows into the earth.

Split-phase electric power

A split-phase or single-phase three-wire system is a type of single-phase electric power distribution. It is the alternating current (AC) equivalent of the original Edison Machine Works three-wire direct-current system. Its primary advantage is that, for a given capacity of a distribution system, it saves conductor material over a single-ended single-phase system, while only requiring a single phase on the supply side of the distribution transformer. This system is common in North America for residential and light commercial applications.

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Assessment of the Feasibility of Applying the Electromagnetic Time Reversal Theory to Locate Defects in Grounding Electrodes

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