Phasor estimation under dynamic conditions has been under study recently by relaxing the
amplitude and phase of the static phasor. This paper will review some methods to estimate …

The characterization of sinusoidal signals with time varying amplitude and phase is useful
and applicable for many fields. Therefore several algorithms have been suggested to …

Power-swing blocking (PSB) function is necessary for the distance relay to avoid unwanted
tripping of the transmission line. A power swing detection technique is proposed in this …

Distance relays are immune to inadvertent operation during power swings by a block known
as “power swing blocking (PSB)”. Its main function is discriminating faults from power …

Among short-circuit faults, those occurring during power swings are more harmful to power
system stability and thus, they should be detected quickly and reliably. However …

Power swing conditions in power systems make distance relays take the wrong breaker
action in some cases. In this context, power swing blocking and power swing deblocking are …

Maloperation of the zone 3 element of distance relays during stressed system conditions,
such as power swing, load encroachment, or voltage stressed condition is one of the main …

Mal-operation of distance relays due to power swing has resulted in the development of
several power swing blocking algorithms. A blinded distance relay is incapable of issuing …

The paper demonstrates a power swing blocking and unblocking technique for a distance
relay in a hybrid transmission line consisting of an overhead line and an underground cable …

Power swing is an undesirable variation in power flow. This can be caused by large
disturbances in demand load, switching, disconnection or reclosing lines. This phenomenon …