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%.
ABSTRACT
The beginning of the 20th century witnessed the epidemic of nutritional rickets among children in many countries of Asia, North...
Abstract:
This study investigates the role of management accounting in sustainability reporting in Lago...
ABSTRACT
This study was carried out on the relationship between teachers qualification and students academic perfo...
ABSRACT
The impact of management incentive policies on worker‟s productivity. The place of good management incentive policies on employee...
ABSTRACT
The implementation of the biometric based attendance system constrained by our scope and objec...
Abstract
This study investigated the Efficacy of Social Media in enhancing Socialization among Social Studies Students in Colleges of Edu...
Background to the Study
Today’s world is characterized by major changes in...
ABSTRACT
The production of bioethanol from selected agro waste (banana and cassava) peels was examined using Saccharomyces cerevisiae str...
EXCERPT FROM THE STUDY
The Niger-delta region in Nigeria is arguably one of the most naturally endowed location on the A...
Background of the study
Drug usage is widespread throughout all age groups, from adolescents to older people. In ord...