Recent Advances in Electrical & Electronic Engineering - Volume 15, Issue 7, 2022

Background: Ferroresonance is a complex electrical phenomenon, which has long been considered a problem for power utilities. Besides, founding mitigation techniques, researchers have also devoted their efforts to predicting the occurrence of ferroresonance in susceptible networks. The study requires mathematically suitable transformer models for computer simulations. Objective: The objective of this paper is to study f Read More

Background: The automobile industry has traditionally been paper-intensive. Such a glut of paperwork presents an organizational challenge for both the financial institution and the customer. Deciding how to store and organize such paperwork presents a further challenge since much of the information contained therein is of a confidential nature. In today's highly electronic world, the array of disparate technologies available Read More

Background: The large-scale distributed new energy integrations bring about various non-ideal grid situations, which could deteriorate the control performance of grid-connected converters. Objective: This study aims to improve the control performance of the grid-connected converters when the grid is non-ideal. Methods: Firstly, a neutral point clamped (NPC) three-level grid-connected converter was studied, and the characte Read More

Background: The existing literature depicts that since the advent of the hybrid permanent magnet switched-flux memory motor (HPMSF-MM), comprehensive research is focused on the design of three (3)-phase HPMSF-MM topologies, which limits their practical safety crucial design application range or scope, namely, in electric vehicle (EV). Objective: This research work aims to design a novel five (5)-phase fault-tole Read More

Background: The independent suspension winding in the dual-winding bearingless motor reduces the power density of the motor, and the amplitude of radial magnetic suspension force is affected by the limited slot space. As for the single-winding bearingless brushless direct current motor (BL-BLDCM), although preliminary researches have been carried out, a detailed analysis of its electromagnetic suspension charac Read More

Background: As the frequency of transformer winding faults becomes higher and higher, the frequency response analysis used to detect the winding status has attracted more and more attention. At present, there is still a lack of reliable and intelligent technologies for detecting the state of transformer windings in this field. Methods: In this paper, a transformer winding deformation diagnosis method based on centroid ana Read More

Background: The overall performance of the hybrid electric vehicle is mainly governed by the energy storage systems characteristics with respect to their power and energy density. The batteries have a good energy density, while the Supercapacitor (SC) has a good power density. Methods: This paper presents a hybrid auxiliary source combined with a battery and the supercapacitor to use both characteristics of auxiliary en Read More