Articles

Browse our published research articles

70 articles
41
Research Article DOI: 10.67203/zjeet.2020.21404bh5

PERFORMANCE EVALUATION OF A THREE PHASE FIVE LEVEL MULTI-LEVEL INVERTER

I. S. Falulu*, S. Moses Okpanachi, A. Abubakar, Abubakar Abdulkarim, Y. Jibril, S. A. Babale, A. Dahiru

A novel three-phase five-level H-NPC Inverter was proposed in this paper. Theproposed research involves developing a model of the inverter with number of powerswitches (IGBT) and four diodes per phase in order to achieve a three-phase five-level,output voltage waveform in a MATLAB/Simulink environment. The output line-to-linevoltage is improved and the total harmonic distortion is lower than the c...

Sep, 2020 pp. 58-66 15 views 11 downloads
42
Research Article DOI: 10.67203/zjeet.2023.ppzpuhbt

A Discrete Bat Algorithm Based Optimal Location and Sizing of Power Distribution Substation

Ibrahim Mohammed Manga*, Adamu Abubakar Sa’idu, Ismaila Mahmud, Mahmud Mustapha, Abdullahi Abubakar, Ibrahim Bashir Shehu

Distribution substation planning is considered one of the most important steps in the power system planning process. A planning model seeks to determine a strategy that will minimize losses and total costs associated with configuring and operating an electric power distribution system over a given planning horizon. Metaheuristic methods are usually deployed in solving the distribution planning pro...

Sep, 2023 pp. 62-72 20 views 9 downloads
43
Research Article DOI: 10.67203/zjeet.2021.6t3kstud

DEVELOPMENT OF AN IMPROVED BINARY CODED GENETICALGORITHM OPTIMAL PMU DEPLOYMENT FOR COMPLETE NETWORK OBSERVABILITY

C.O Okonkwo*, B. Jimoh, Y. Jibril, A. J Akinbobola, E.S Onyema

An Improved Binary Coded Genetic Algorithm for optimal Phasor Measurement Unit (PMU) deployment. A new PMU deployment optimizer was developed, and integrated into the conventional binary coded genetic algorithm (BCGA), to form an improved binary coded genetic algorithm (IBCGA), with high rate of convergence. This is applied for the optimal deployment of the PMUs in systems with different sizes and...

Sep, 2021 pp. 62-72 20 views 12 downloads
44
Research Article

Advancements in Raw Material Availability, Development Strategies, and Industrial Prospects for Zinc-Carbon Dry Cell Production In Nigeria and Uganda

Excellence Favor, Abubakar Abdulkarim*, Yinusa Ademola Adediran

Nigeria could boast of at least six functioning dry cell manufacturing industries. Unfortunately, today, these industries have gone into oblivion with only one trying, epileptically, to survive. One major factor responsible for this is the higher cost of production than the sales price of imported ready-made cells. This, in turn, is due to almost zero local material content of Nigeria-made cells. ...

Oct, 2026 pp. 65-81 4 views 1 downloads
45
Research Article DOI: 10.67203/zjeet.2025.oujsl7gb

Derived Specific Rain Attenuation at Stand-Alone Milimeter Wave Bands for Samaru Zaria, Nigeria

I. Abdullahi*, Abubakar Abdulkarim, U. Musa, I. A. Shehu, A. Aliyu

This work studies rain–induced effect on some envisaged 5G links located at Samaru Zaria, Kaduna State, Nigeria, operating at 26 GHz, 38 GHz and 42 GHz in a MATLAB environment; using 3–year rain data obtained from Em60G™ datalogger–powered metrological setup of the Nigerian Metrological Agency (NiMet) located at Ahmadu Bello University, Zaria. Lavergnat and Gole (LG) model was used to derive the 1...

Sep, 2025 pp. 65-70 20 views 11 downloads
46
Research Article DOI: 10.67203/zjeet.2024.4617wkxl

Load Frequency Control of a Two Area Network using Fractional PID Controller

Abdulazeez Abbas*, A.S. Abubakar, Zaharadeen Musa

This paper simulates load frequency control (LFC) problem in a two-area power system using a traditional PID controller and a Fractional Proportional-Integral-Derivative (FPID) controller. The study aims to enhance the stability and performance of the power system by minimizing frequency deviations and maintaining the desired power exchange between the interconnected areas. The FPID controller is ...

Sep, 2024 pp. 67-78 18 views 9 downloads
47
Research Article DOI: 10.67203/zjeet.2020.jxydba8j

NUMERICAL COMPARISON OF AERODYNAMIC PERFORMANCE OF NACA 4415 FISH TAIL AIRFOIL BLADE WITH CONVENTIONAL NACA 4415 AIRFOIL BLADE

S. I. Sa’id*, A.B. Aliyu, A.A. Adam

The numerical values of the lift coefficient and drag coefficient of NACA 4415 fish tailairfoil blade and conventional NACA 4415 airfoil blade were obtained using CFD programANSYS-FLUENT at angle of attack from -6° to 42°. The values of the stall angle and anglecorresponding to the maximum lift-to-drag ratio for both blades were determined andcompared. The result indicated that Lift and drag coeff...

Sep, 2020 pp. 67-72 14 views 4 downloads
48
Research Article DOI: 10.67203/zjeet.2019.qes7j7nt

COMPUTATIONAL COMPLEXITY ANALYSES OF ADAPTIVE EQUALIZATION ALGORITHMS IN LINEARLY DISPERSED CHANNEL SYSTEMS

O.E. Ochia*, E. Obi

This paper presents a framework for assessing the complexity of adaptive equalizationalgorithms in a linearly dispersive channel that produces unknown distortion. Threealgorithms are investigated including the Least Mean Squares (LMS), Recursive LeastSquares (RLS), and Recursive Least Squares Lattice (RLSL) algorithms with respect to themean square error (MSE) and the sample convergence speed. The...

Sep, 2019 pp. 67-73 11 views 4 downloads
49
Research Article DOI: 10.67203/zjeet.2025.80f2lqzh

Development of Deep Learning Model Based Resnet with SSD for Fault Detection in Distribution Network

A. Ango*, O. Ajayi, Zaharaddeen Haruna, M. B. Mu’azu

This research proposes the development of deep learning model based residual network with single short multi box detector (resnet-SSD) for fault detection in distribution network. Power infrastructures are components used in the power system to generate, transmit or distribute power for the benefit of the consumers. These components include conductors, insulators, transformer, cross arm and many m...

Sep, 2025 pp. 71-79 14 views 8 downloads
50
Research Article DOI: 10.67203/zjeet.2023.pp4714m0

Voltage stability enhancement Scheme using PV-reinforced Dynamic Voltage Restorer

J. A. Joseph*, Gbenga Abidemi Olarinoye, A.S. Abubakar

Among the promising solutions proposed for the mitigation of the voltage instabilities is a series compensator known as Dynamic Voltage Restorers (DVR) due to its flexibility and cost effectiveness. Dynamic Voltage Restorer (DVR) also known as Static Synchronous Series Compensator (SSSC) is a series compensation technique used in the distribution and transmission system. The power flow through the...

Sep, 2023 pp. 73-86 19 views 11 downloads