ABSTRACT
This research presents effect of harmonic generated by variable frequency drives (VFD).In the past, electrical power system equipment and devices were designed to produce nearly sinusoidal voltage and current waveforms. However, nowadays, with much interest and wide spreads of power electronics equipment, for industrials, commercials and residential consumers, these equipment and other electronics devices are no longer operate with an ideal current and voltage waveform, because of the non-linearity of the equipment in nature, with this trend, a Recurrent Neural Network Algorithms with active power filter (SAPF) is implemented for harmonics mitigation on Variable Frequency Drive,because of its simplicity and accuracy among the artificial intelligent family controllers. Simulations were carried out using MATLAB/SIMULINK and SIMPOWER tool box environment to analyze the harmonics distortion. The total harmonics distortions (THD %) of current was calculated using relevant equations. The simulation results are in accordance with the recommended IEEE 519-2014 harmonic standard limits. However, the distortion harmonics in feeder supplying the VFD and soft starter equipment which led to frequent replacement of the drive or out of services also led the Distribution Control System Failure (DCS). 47.17% before and after the application of filter was reduced to 1.80%.
ABSTARCT
This study was carried out on tax incentives and the financial performance of manufacturing companies in Nigeri...
ABSTRACT
The issue of terrorism has attracted global attention. In Nigeria in particular, the terrorist...
Over the years, paper-based system for information managem...
Abstract: This study explores innovations in teaching methodologies in technical education...
ABSTRACT
Phytochemical and antimicrobial screening analysis of Mangifera indica and Carica papaya indicated the presence...
Abstract : THE ROLE OF JOB DESCRIPTIONS IN ATTRACTING QUALIFIED CANDIDATES
This study examines the role of job descriptions in attracting...
ABSTRACT
This study was carried out on embracing top-down information communication as a means of enhan...
Abstract
This research is on the assessment of the influence of socio-economic status on career...
Background of the Study
Attendance management of students in institution can be rigorous using the conventional method o...
ABSTRACT
This research explores THE ROLE OF INTERNATIONAL ACCOUNTING FOR NON-PROFIT ORGANIZATIONS, aiming to evaluate financial transpare...