Browsing by Author "Abdullateef, Ayodele Isqeel"

Now showing 1 - 9 of 9
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    Design and Implementation of a Cloud-Based Load Monitoring Scheme for Electricity Theft Detection on a Conventional Grid
    (Technical University Tafila, Jordan., 2023-12) Abdullateef, Ayodele Isqeel; Issa, Abdulkabir Olatunji; Zakariyya, Sikiru Olayinka; Sulaiman, Abdullah
    Electricity theft is one of the problems - encountered by the utilities - that leads to losses of revenue. Manual monitoring of the consumers’ activities which shows the energy data consumed on the conventional grid has largely contributed to electricity theft on the grid. Significantly, the energy meter deployed to monitor the load cannot store and transmit energy data in real-time. This has made electricity theft on the grid unnoticed. This paper presents the development of a monitoring scheme for an electronic meter on the conventional grid with the capability to monitor, store and transmit consumers’ energy data to the cloud. It consists of two units: the indoor and the outdoor unit. Energy data is transferred wirelessly between the units via the Wi-Fi modules. The outdoor unit compares the data and transfers the outcome to the ThinkSpeak cloud server. The transferred energy data can be accessed in real-time from the cloud or downloaded in comma-separated values format for further use. In order to verify the functionality of the proposed scheme, two scenarios of electricity theft - partial bypassing and full bypassing - are carried out. The obtained results show that the scheme can detect the theft and log the data to the cloud successfully.
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    Development Of A Cloud-Based Condition Monitoring Scheme For Distribution Transformer Protection
    (Universitas Sriwijaya, Indralaya, Indonesia, 2023-02) Abdullateef, Ayodele Isqeel; Issa, Abdulkabir Olatunji; Sulaiman, Abdullah; Salami, Momoh Jimoh Eyiomika; Otuoze, Abdulrahaman
    Distribution transformers are a necessity to ensure a reliable power supply to consumers and their inability to function properly or even breakdown should be avoided due to the high cost of replacing them. Distribution transformers are large in numbers and randomly distributed in cities and there is a need to accurately monitor their daily/hourly performance. To achieve this, real-time monitoring of the transformer’s health status is proposed rather than the use of the traditional approach involving physical inspection and testing which is slow, tedious and time-consuming. This paper presents a cloud-based monitoring scheme applied to a prototype distribution transformer. A 10kVA, 0.415 kV prototype distribution transformer has been acquired and connected to three residences for data acquisition. A data acquisition system has been developed to monitor and record the parameters of the prototype transformer for 14 days. The parameters, monitored in real-time include load current, phase voltage, transformer oil level, ambient temperature and oil temperature. The acquired real-time data of the transformer is validated with the standard measuring instrument. An algorithm was developed to transmit and log the data to ThinkSpeak cloud server via node MCU (ESP 8266). Results obtained in this study, which can be visualized via the graphical user interface of ThinkSpeak, indicate that the proposed scheme can acquire vital data from the distribution transformers and transmit the information to the monitoring centre.
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    Development of Overvoltage and under voltage Protection System for A Residential Building Interfaced with a GSM Notification System
    (Abubakar Tafawa Balewa University Bauchi, Nigeria, 2023-03) Jimoh, Abdulsamad Bolakale; Otuoze, Abdulrahaman Okino; Yesufu, Leila; Jimoh, Abdulrasaq; Omoyeni, Raphael Oluwatimileyin; Omeiza, Isaac Ozovehe Avazi; Abdullateef, Ayodele Isqeel
    Overvoltage and under voltage are undesirable conditions capable of causing damages to electrical appliances. In literature, detection and protection of electrical appliances from these voltage irregularities have been largely explored. Nonetheless, load control during irregularities and fault location remains subjects of considerations. In this work, an overvoltage and undervoltage protection system is designed for a residential building. The voltage limits of 240 V and 200 V are set for overvoltage and undervoltage protection, respectively. The protective system unit is developed utilizing a PIC 16F876A microcontroller. A GSM module, SMS 808, with the capacity to send an SMS and location via longitude and latitude, is interfaced for notification and tracking purposes. With the aid of a variac, five different levels of voltage are fed as input for each condition (normal, overvoltage, undervoltage). At each stage of the tested conditions, the protection system operated as set and notifications were sent as programmed. The results revealed that the device can disconnect the load when there are irregularities as well as notifying the utility company and consumers of the locations.
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    Evaluation of Power Loss Based on Backward Forward Sweep Algorithm: A Case Study of Igosun Feeder Offa, Nigeria
    (Ekiti State University Ado-Ekiti., 2023-02) Abdullateef, Ayodele Isqeel; Gbenle, Abimbola Joan; Alao, Rasaq Atanda; Raji, Bello Sunday
    Electrical energy is usually generated long distances from the load centres; therefore, it needs an extensive network of conductors to bring it to the consumers. Due to the long distance covered by these conductors, power losses occur in the distribution system. Power losses affect the system's efficiency, reducing grid reliability, voltage instability, needless switchgear tripping, and blackouts. Power losses could be technical and non-technical. Technical losses are inherent due to the component on the distribution network; thus, it is unavoidable and can only be reduced, not eliminated. This paper evaluates the power loss on the 11 kV Igosun distribution feeder, Offa, Kwara State using the backward forward sweep algorithm implemented in MATLAB platform. The data, extracted from the feeder's topology, were used to calculate the corresponding real and reactive power load at the respective buses. The results show a total real power loss of 873.5688 kW and a total reactive power loss of 504.3703 kVAR on the feeder. The knowledge of the feeder's power losses will benefit electric power utilities to improve the quality of the power supply and revenue generation.
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    FIRE AND EXPLOSIVE RISK ASSESSMENT FOR COMBUSTIBLE POWDER PNEUMATIC CONVEYOR SYSTEM
    (2020-02) OLADIMEJI, Ibrahim; Otuoze, Abdulrahaman Okino; Akorede, Mudathir Funsho; ABDULKARIM, Abubakr 3.A.I ABDULLATEEF, 4.Olalekan OGUNBIYI; Abdullateef, Ayodele Isqeel; Ogunbiyi, Olalekan
    Failure to properly define operating hazards associated with pneumatic conveying system for combustible powder transportation has led to several incidences of fires and explosions. These hazards are mostly preventable if adequate safety measures are provided for the pneumatic conveying systems for dust and combustible materials during the system design, installation and operating stages. This paper presents assessment on risk of fire and explosive hazards associated with pneumatic conveying system for a combustible powder transportation and prescribe the best practice to prevent possible accident that might result from improper practice. The safety practice and relevant regulations for zoning of the operating area and guide for proper selection of suitable class of measuring instrumentation for safe system operation are enumerated.
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    Hybrid algorithm for NARX network parameters' determination using differential evolution and genetic algorithm
    (by Institute of Physics (IOP), 2013) Salami, Momoh Jimoh Eyiomika; Tijani, Ismaila Bayo; Abdullateef, Ayodele Isqeel; Aibinu, Musa
    A hybrid optimization algorithm using Differential Evolution (DE) and Genetic Algorithm (GA) is proposed in this study to address the problem of network parameters determination associated with the Nonlinear Autoregressive with eXogenous inputs Network (NARX-network). The proposed algorithm involves a two level optimization scheme to search for both optimal network architecture and weights. The DE at the upper level is formulated as combinatorial optimization to search for the network architecture while the associated network weights that minimize the prediction error is provided by the GA at the lower level. The performance of the algorithm is evaluated on identification of a laboratory rotary motion system. The system identification results show the effectiveness of the proposed algorithm for nonparametric model development
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    Intelligent SCADA based monitoring scheme for low voltage distribution system
    (In Mechatronics book series: Robotic and Automation. IIUM Press, Kuala Lumpur, 2011) Abdullateef, Ayodele Isqeel; Salami, Momoh Jimoh Eyiomika
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    Network Reconfiguration for Power Loss Reduction on Distribution Feeder Using Particle Swarm Optimisation: Case study of 11kv Feeder in Ilorin, Nigeria
    (Federal University of Oye-Ekiti, 2023-03) Abdullateef, Ayodele Isqeel; Raji, Bello Sunday; Gbenle, Abimbola Joan; Salami, Momoh Jimoh Eyiomika; Alao, Rasaq Atanda
    The distribution system is the largest segment of the electrical power system and the final stage in delivering electricity to consumers. It experiences power losses which could be technical or non-technical due to its radial configuration and connected components. Technical losses occur as energy dissipation in the form of heat in the system components, which is unavoidable. It affects the efficiency of the system and increases operational costs. Therefore, the reduction is essential for adequate power supply and improvement in utility revenue generation. This study focuses on reducing power losses on 11 kV Taiwo distribution feeder in Ilorin using the Network reconfiguration approach. The feeder was modelled, and its power losses were evaluated based on the Backward Forward Sweep method suitable for the radial network. The reconfigured network was optimised using the Particle Swarm Optimisation technique. The study shows that the values of feeder real power losses before and after reconfiguration are 176.883 kW and 121.972 kW, respectively. Further improvement was, however, achieved when PSO was used for the reconfiguration, as the power loss value stands at 98.465 kW. This is 44.33 % reduction compared to the initial power loss value and 19.273 % after reconfiguration. Furthermore, the values of the reactive power losses before and after reconfiguration are 9.474 kVar and 6.527 kVar, respectively, amounting to a 31.11 % reduction. However, PSO reduces the value to 3.101 kVar, which is 67.27 % of the initial value. Thus, radial distribution network reconfiguration using PSO has proven to be a robust method for reducing power loss in the distribution network.
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    Sizing and Implementation of a Standalone Solar Photovoltaic System for a Three-Phase Submersible Pumping Machine
    (Faculty of Engineering, Ahmadu Bello University, Zaria, Nigeria, 2023-04) Abdullateef, Ayodele Isqeel; Issa, Abdulkabir Olatunji; Sulaiman, Abdullah; Issa, Abdulrasheed Yinka; Salami, Momoh Jimoh Eyiomika; Onasanya, Mobolaji Agbolade
    The solar photovoltaic system is an alternative power supply source that could aid the economic growth of a nation. However, improper sizing of the system leads to a high installation cost and a low level of penetration in the energy mix. This study focused on the appropriate sizing and implementation of a standalone solar system for a three-phase pump machine in a farm in Ilorin, Nigeria. The pump rating was determined manually as 20HP, with a flow rate of 180,000 L/h. Consequently, the daily load and solar global horizontal irradiance data were acquired and used for sizing the PV system using HOMER Pro software. Fifty-six solar panels with a total area of 120.4 m2 were proposed and installed to achieve a total power of 22.4 kW required for the machine's operation. The levelised cost of energy was 0.4007 $/kWh as against the cost of energy when the farm was running on generators with an energy cost of 4.170 $/kWh. The economic analysis of the system for the farm shows the Net present cost and cost of energy of the system configuration are $28,341.91 and 0.4007 $/kWh, respectively.