The two main voltage sag indices are magnitude and duration, defined in terms of the well-
known rms voltages. The spectral energy of the voltages provides the same voltage sag …

This paper proposes a new hybrid algorithm for grey wolf optimization (GWO) integrated with
a robust learning mechanism to solve the large-scale economic load dispatch (ELD) …

This paper proposes a method for characterizing voltage dips based on the space phasor
model of the three phase-to-neutral voltages, instead of the individual voltages. This has …

Voltage sags and power interruptions are important power quality problems that affect
sensitive customers, mainly because they cause annual massive economical losses to the …

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Voltage sags and swells are power quality events commonly observed in power systems;
however, none of the existing methods allows determining their point-on-wave inception and …

A fault classification and voltage sag parameters computation using voltage ellipses in
Clarke's domain is presented in this paper. The voltage sag parameters computed are the …

This paper presents a new stochastic approach to the comprehensive assessment of the
impact of voltage sags on large-scale power networks. The approach takes into account the …

Voltage sags may affect the accurate operation of several equipment connected to power
systems. A typical example is the doubly-fed induction generator (DFIG), which is often …

One of the main challenges in the protection of the Inverter-Based Microgrids (IBM) is fault
detection. Inverter-based resources have limited fault current; they also adopt different …