Innocent E. Davidson
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View article: Advanced control and protection strategies for grid-forming inverters in microgrids—A review
Advanced control and protection strategies for grid-forming inverters in microgrids—A review Open
The rising share of inverter-based resources and the associated decline in conventional inertia have intensified interest in grid-forming inverters (GFMIs), which emulate the dynamic behavior of synchronous generators by autonomously estab…
View article: Co-Optimized Design of Islanded Hybrid Microgrids Using Synergistic AI Techniques: A Case Study for Remote Electrification
Co-Optimized Design of Islanded Hybrid Microgrids Using Synergistic AI Techniques: A Case Study for Remote Electrification Open
Off-grid and isolated rural communities in developing countries with limited resources require energy supplies for daily residential use and social, economic, and commercial activities. The use of data from space assets and space-based sol…
View article: Sub-Saharan Africa Electric Power Distribution Networks Performance Enhancement Prospect
Sub-Saharan Africa Electric Power Distribution Networks Performance Enhancement Prospect Open
This research sought to assess the enhancement prospects of electric distribution feeders in Sub-Saharan Africa networks for improving electric power supply to end users. Selected feeder’s network was mapped out for element verification an…
View article: Co-Optimized Energy Storage Design of Islanded Hybrid Microgrids Using Synergistic AI Techniques: A Case Study for Remote Electrification
Co-Optimized Energy Storage Design of Islanded Hybrid Microgrids Using Synergistic AI Techniques: A Case Study for Remote Electrification Open
Most of the world's energy needs are in rural and isolated regions. Hybrid energy systems (HES), combining different types of renewable energy and energy storage technologies, can provide a viable solution for off-grid electrification…
View article: Investigation of the geomagnetic storms’ impact on low-latitude ionosphere: case studies of October 2003 and March 2015 events
Investigation of the geomagnetic storms’ impact on low-latitude ionosphere: case studies of October 2003 and March 2015 events Open
Geomagnetic storms can significantly impact the Earth's upper atmosphere known as the ionosphere used for communication and navigation, particularly at low latitudes. This study examines the effects of two major geomagnetic storms on the l…
View article: Analysing the ML‐Based Algorithms for GNSS Data Bit Synchronization and Decoding
Analysing the ML‐Based Algorithms for GNSS Data Bit Synchronization and Decoding Open
The position, velocity, and time global navigation satellite systems are vulnerable to signal interference, distortion, jamming, and multipath, which could potentially render the entire system inoperable due to the generally weak signal st…
View article: Secured Clustered Wireless Sensor Network Using Ensemble Hamming Code and Quadratic Residue and Nonresidue Properties
Secured Clustered Wireless Sensor Network Using Ensemble Hamming Code and Quadratic Residue and Nonresidue Properties Open
Wireless sensor networks (WSNs) are increasingly used in critical sectors such as defence, healthcare and environmental monitoring. These networks rely on small resource‐constrained sensor nodes that communicate wirelessly, making them vul…
View article: Comparative Review of Remote Sensing Methods for Ocean Plastic Litter Detection
Comparative Review of Remote Sensing Methods for Ocean Plastic Litter Detection Open
Marine ecosystems are significantly threatened by plastic litter, hence, effective detection and monitoring techniques are necessary. The identification and classification of ocean plastic litter is made possible by the development of remo…
View article: Do the Dam Project—Evaluating floating solar photovoltaic and energy storage at Inanda Dam within eThekwini Municipality, South Africa
Do the Dam Project—Evaluating floating solar photovoltaic and energy storage at Inanda Dam within eThekwini Municipality, South Africa Open
South Africa’s electricity generation plant portfolio includes several aged units, resulting in frequent breakdowns, electricity shortages and load shedding. This study evaluates the feasibility of generating electricity at the Inanda Dam …
View article: Methods and Tools for PV and EV Hosting Capacity Determination in Low Voltage Distribution Networks—A Review
Methods and Tools for PV and EV Hosting Capacity Determination in Low Voltage Distribution Networks—A Review Open
The increasing demand for electricity and the need for environmentally friendly transportation systems has resulted in the proliferation of solar photovoltaic (PV) generators and electric vehicle (EV) charging within the low voltage (LV) d…
View article: Mobile Broadband Adoption, Performance Measurements and Methodology: A Review
Mobile Broadband Adoption, Performance Measurements and Methodology: A Review Open
Mobile broadband (MBB) penetration has deepened globally over the last twenty years. This is largely due to the adoption of smart devices, improved mobile communications network coverage, and the perpetual drive to develop ever faster mobi…
View article: Power Planning for a Reliable Southern African Regional Grid
Power Planning for a Reliable Southern African Regional Grid Open
Southern Africa has suffered from multiple power disruptions in the past decade due to inadequate electrical generation capacity, as well as load developments in locations that were not suitably planned for. Southern African countries are …
View article: An Improved Dense CNN Architecture for Deepfake Image Detection
An Improved Dense CNN Architecture for Deepfake Image Detection Open
Recent advancements in computer vision processing need potent tools to create realistic deepfakes. A generative adversarial network (GAN) can fake the captured media streams, such as images, audio, and video, and make them visually fit oth…
View article: Deepfake Generation and Detection: Case Study and Challenges
Deepfake Generation and Detection: Case Study and Challenges Open
In smart communities, social media allowed users easy access to multimedia content. With recent advancements in computer vision and natural language processing, machine learning (ML), and deep learning (DL) models have evolved. With advanc…
View article: Deep Learning-Based Single-Image Super-Resolution: A Comprehensive Review
Deep Learning-Based Single-Image Super-Resolution: A Comprehensive Review Open
High-fidelity information, such as 4K quality videos and photographs, is increasing as high-speed internet access becomes more widespread and less expensive. Even though camera sensors’ performance is constantly improving, artificially enh…
View article: Enhanced Electric Power Adaptability Using Hybrid Pumped-Hydro Technology with Wind and Photovoltaic Integration
Enhanced Electric Power Adaptability Using Hybrid Pumped-Hydro Technology with Wind and Photovoltaic Integration Open
The integration of solar and wind energy into the electrical grid has received global research attention due to their unpredictable characteristics. Because wind energy varies across all timescales of utility activity, renewable energy gen…
View article: Modelling of a Photovoltaic-Based Grid Supporting Microgrid and Fault Ride-Through Control Application
Modelling of a Photovoltaic-Based Grid Supporting Microgrid and Fault Ride-Through Control Application Open
The design and control of power converters required for DC-DC and DC-AC conversions are critical to enhancing durability, reliability, and efficiency. The interfacing power converters are essential for power conditioning for efficient load…
View article: Electricity sector assessment in Nigeria: the post-liberation era
Electricity sector assessment in Nigeria: the post-liberation era Open
To improve the electricity services in Nigeria, the government has embarked on a total reform of the Nigerian Electricity Supply Industry. The reform started with rehabilitating the government-owned electricity infrastructures in 1999 and …
View article: Fault Classification and Localization Scheme for Power Distribution Network
Fault Classification and Localization Scheme for Power Distribution Network Open
In this paper, a fault protection diagnostic scheme for a power distribution system is proposed. The scheme comprises a wavelet packet decomposition (WPD) for signal processing and analysis and a support vector machine (SMV) for fault clas…
View article: High Impedance Fault Detection Protection Scheme for Power Distribution Systems
High Impedance Fault Detection Protection Scheme for Power Distribution Systems Open
Protection schemes are used in safe-guarding and ensuring the reliability of an electrical power network. Developing an effective protection scheme for high impedance fault (HIF) detection remains a challenge in research for protection eng…
View article: Network Coordination between High-Voltage DC and High-Voltage AC Transmission Systems Using Flexible AC Transmission System Controllers
Network Coordination between High-Voltage DC and High-Voltage AC Transmission Systems Using Flexible AC Transmission System Controllers Open
The strategic intent of the African Union is to develop a “Smart Integrated African Electric Power Super Grid” driven by modern tools and advances in high-voltage direct current (HVDC) engineering and flexible alternating current technolog…
View article: A Taxonomy on Smart Healthcare Technologies: Security Framework, Case Study, and Future Directions
A Taxonomy on Smart Healthcare Technologies: Security Framework, Case Study, and Future Directions Open
There is a massive transformation in the traditional healthcare system from the specialist-centric approach to the patient-centric approach by adopting modern and intelligent healthcare solutions to build a smart healthcare system. It perm…
View article: Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid
Decentralized Virtual Impedance- Conventional Droop Control for Power Sharing for Inverter-Based Distributed Energy Resources of a Microgrid Open
The work presents the power-sharing in a standalone low voltage AC microgrid consisting of three parallel grid supporting inverters using a virtual impedance-based droop system. Typically, isolated microgrids suffer unique challenges regar…
View article: Advanced Distributed Cooperative Secondary Control of Islanded DC Microgrids
Advanced Distributed Cooperative Secondary Control of Islanded DC Microgrids Open
In an islanded DC microgrid with multiple distributed generators (DGs), the droop control is employed to realize proportional current sharing among the DGs in the microgrid. The action of the droop control causes a deviation in the DC bus …
View article: Analysis of voltage rise phenomena in electrical power network with high concentration of renewable distributed generations
Analysis of voltage rise phenomena in electrical power network with high concentration of renewable distributed generations Open
The increasing penetration levels of renewable distributed generation (RDG) into a power system have proven to bring both positive and negative impacts. The occurrence of under voltage at the far end of a conventional electrical distributi…
View article: Modelling of Solar PV under Varying Condition with an Improved Incremental Conductance and Integral Regulator
Modelling of Solar PV under Varying Condition with an Improved Incremental Conductance and Integral Regulator Open
The introduction of solar photovoltaic (PV) systems would provide electricity accessibility to rural areas that are far from or have no access to the grid system. Various countries are planning to reduce their emissions from fossil fuel, d…
View article: Modeling of Double Stage Photovoltaic Inverter System with Fast Delayed Signal Cancellation for Fault Ride-Through Control Application in Microgrids
Modeling of Double Stage Photovoltaic Inverter System with Fast Delayed Signal Cancellation for Fault Ride-Through Control Application in Microgrids Open
This research presents a secondary control for a grid-supporting microgrid with photovoltaics sources to guarantee grid code compliance and ancillary services. The secondary control accomplishes the fault ride-through, which implements a d…