Harmonic Analysis News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Non-ideal frequency response (FR) and voltage non-linearity of high-voltage (HV) instrument transformers directly impact the accuracy of HV measurements in the presence of harmonics. Characterization of voltage instrument transformer FR is generally performed at low voltage (LV) with sinusoidal test signals. Those results may not accurately represent the response of the instrument transformer when subjected to distorted waveforms in modern power systems. This article presents a calibration system for the evaluation of harmonic measurement accuracy of single-phase instrument transformers with r...

Baylor University mathematicians Dorina Mitrea, Ph.D., and Marius Mitrea, Ph.D., along with Irina Mitrea, Ph.D., professor of mathematics at Temple University,

Baylor University mathematicians Dorina Mitrea, Ph.D., and Marius Mitrea, Ph.D., along with Irina Mitrea, Ph.D., professor of mathematics at Temple University,

The objective of this research is to propose an innovative method for improving the efficiency and productivity of fuzzy logic controllers (FLCs) under the influence of harmonics in non-linear loads, by using particle swarm optimization (PSO) for solid-state transfer switch (SSTS). A PSO-based FLC (PSOF) fitness function is introduced to optimize the load transfer performance by minimizing the mean squared error (MSE) in a short period of time. The traditional and time-consuming method of deriving membership functions (MFs) is avoided by utilizing adaptive MFs created from the fitness function...

SRINAGAR: Dr Azhar Yousuf, a young mathematician from Kashmir has been awarded a postdoctoral position by IIT Mumbai. Yousuf recently completed his PhD from the Department of Mathematics, South Campus, University of Kashmir, under the supervision of Dr Firdous A Shah.