This article proposes a novel algorithm employing space vector ellipse (SVE) in complex plane to classify and visualize power quality disturbance-events (PQDEs). In the proposed method, at first, time-domain signal reference signal, which are separated by 90°, mapped 2D coordinates. Thus, tip of resultant rotating traces an ellipse, from three parameters, namely, semi-major axis, semi-minor axi...

AC railway traction loads are usually huge single phase loads. As a result, a significant amount of Negative Sequence Current (NSC) is injected into utility grid. Moreover, harmonics and consumption ofreactive power are further power quality problems that the supply network is encountering. In this paper, acompensation strategy with the aid of Railway Power Conditioner (RPC) is proposed to over...

A multiple power quality (MPQ) disturbance has two or more (PQ) disturbances superimposed on a voltage signal. compact and robust technique is required to identify classify the MPQ disturbances. This manuscript investigated hybrid algorithm which designed using parallel processing of with stockwell transform (ST) hilbert (HT). will reduce computational time disturbances, makes fast. identificat...