Olatunji Obalowu Mohammed

@unilorin.edu.ng

Senior Assistant Professor, Faculty of Engineering and Technology
Deputy Director
University of Ilorin

Olatunji Obalowu Mohammed


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https://researchid.co/obalowu
Olatunji Obalowu Mohammed received a B.Eng. degree in Electrical Engineering from Bayero University Kano, Kano State, Nigeria, and MSc in Electrical and Electronics Engineering from Coventry University, Coventry, UK in 2010 and 2014 respectively. He obtained his Ph.D. in Electrical Engineering at Universiti Teknologi Malaysia (UTM) in 2019. He is also currently a Senior Lecturer at the Department of Electrical and Electronics Engineering, University of Ilorin, Kwara State, Nigeria. He is a registered Engineer with the Council for the Regulation of Engineering in Nigeria (COREN), A member of the Nigerian Society of Engineers (MNSE), and an IEEE member. His research area is on Energy efficiency, Demand side management, transfer capability assessment, sustainability, and control of Renewable energy and Distributed systems.

EDUCATION

Ph.D. in Electrical Engineering, University of Technology Malaysia, Johor Bahru, Malaysia.
Master of Science in Electrical and Electronics Engineering, Coventry University United Kingdom.
Bachelor of Engineering in Electrical Engineering, Bayero University Kano, Kano State, Nigeria.

RESEARCH, TEACHING, or OTHER INTERESTS

Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment
22

Scopus Publications

790

Scholar Citations

13

Scholar h-index

20

Scholar i10-index

Scopus Publications

  • Assessment of hybrid solar photovoltaic-diesel systems for mini-marts in rural commercial applications
    Majlesi Journal of Electrical Engineering, 2025
  • Saving utility costs optimization in generator operation planning based on scalable alternatives of probabilistic demand-side management
    Daw Saleh Sasi Mohammed, Muhammad Murtadha Othman, Olatunji Obalowu Mohammed, Masoud Ahmadipour, Mohammad Lutfi Othman
    Sustainable Energy Technologies and Assessments, 2025
  • On the Choice of System Strength Metrics for the Allocation and Sizing of Synchronous Condensers in Power Grids
    Shereefdeen Oladapo Sanni, Olatunji Obalowu Mohammed, Suprava Chakraborty, Ayodele Isqeel Abdullateef, Abdulrahaman Okino Otuoze, et al.
    IEEE Access, 2025
    The integration of high levels of inverter-based generation (IBG) into power grids requires meticulous planning, especially as IBGs lack the inherent short-circuit capacity of conventional generators, potentially weakening system strength. To mitigate this, synchronous condensers (SCs) are deployed in weak areas to enhance fault current and voltage support. Traditional SC allocation methods use the short-circuit ratio (SCR) as a key metric, but this may not account for control interactions in grids with significant IBG penetration. This study compares two approaches for optimizing SC placement and sizing: SCR-based and network-response short-circuit ratio (NRSCR)-based, a metric that captures dynamic IBG interactions. Applying a genetic algorithm (GA) to the Nigerian power grid as a case study, the SCR-based approach identified two critical points of interconnection (PoIs) requiring 68 MVA of SC capacity, while the NRSCR-based method identified four PoIs, requiring a total of 674 MVA. Although the NRSCR-based method significantly improved system performance during faults—offering faster voltage recovery post-fault and higher fault current contributions—it resulted in a cost increase of approximately 7 times. This highlights the trade-off between cost and performance, underscoring the need for utilities to balance economic and technical considerations when deploying SCs in IBG-dominated grids.
  • Identifying interaction boundary of inverter-based generation in assessing system strength of power grids using relative electrical distance concept
    Shereefdeen Oladapo Sanni, Olatunji Obalowu Mohammed, Ayodele Isqeel Abdullateef, Daw Saleh Sasi Mohammed, Joseph Yakubu Oricha
    Renewable Energy Focus, 2024
  • Investigating the impact of solar PV and wind energy systems on the strength of a longitudinal power grid
    Shereefdeen Oladapo Sanni, Ayodele Isqeel Abdullateef, Olatunji Obalowu Mohammed, Muhammad Naveed Aman, Atanda Kamoru Raji, et al.
    E Prime Advances in Electrical Engineering Electronics and Energy, 2024
  • Strengthening the Nigerian Grid: Impact of SCR Thresholds on Synchronous Condenser Allocation for Inverter-Based Generation Integration
    Shereefdeen Oladapo Sanni, Olatunji Obalowu Mohammed, Ayodele Isqeel Abdullateef, Emmanuel Oluwatobi Badmus, Femi Ikotoni Bawonda
    2024 IEEE Power and Energy Conference at Illinois Peci 2024, 2024
    Energy-constrained power grids increasingly rely on inverter-based generation (IBG) from solar photovoltaic (PV) and wind sources to supplement their power supply needs. However, these alternatives lack inherent grid-supporting capabilities like short-circuit current and reactive power, which are vital for system stability. Consequently, their integration weakens system strength. Grids require a minimum system strength threshold to maintain adequate strength and successfully accommodate IBG. This paper investigates the allocation of synchronous condensers (SCs) to enhance the short-circuit ratio (SCR), a key indicator of system strength, within the context of the Nigerian power grid. With an SCR threshold of 5, SC allocation using genetic algorithm (GA) optimization effectively improved SCRs at vulnerable points of interconnection (PoIs), notably Katsina and Jos. For a stricter threshold of 10, larger SCs were needed across two more PoIs at Kano and Gombe, achieving significant SCR improvements. We demonstrate that SCs can effectively increase short-circuit current and reinforce system strength at strategic grid points. The findings provide valuable insights and lay the groundwork for further research into the implications of SC deployment for grid resilience and large-scale integration of inverter-based generation.
  • Model based predictive control strategy for water saving drip irrigation
    Abiodun Emmanuel Abioye, Mohamad Shukri Zainal Abidin, Mohd Saiful Azimi Mahmud, Salinda Buyamin, Olatunji Obalowu Mohammed, et al.
    Smart Agricultural Technology, 2023
  • Assessment of the influence of wind energy incorporated capacity benefit margin in ATC computation
    Olatunji Obalowu Mohammed, Mohd Wazir Mustafa, Sani Salisu, Ahsanullah Memon, Saddam Hussain, et al.
    International Journal of Applied Power Engineering, 2022
    Available transfer capability (ATC) is an important metric used to measure the techno-economic viability of the transmission networks. Several methods have been presented in literature for ATC assessment, however, only some few articles incorporate CBM in ATC calculation and those few papers only considered conventional power generation sources in CBM evaluation. CBM is a function of the reliability of generating units. This paper presents the inter-area CBM calculation in the presence of wind energy source using graph theory technique and the results are incorporated in ATC computation using repeated power flow. CBM is incorporated in ATC computation as non-recallable and recallable power transfers. The results with and without CBM incorporation, in the presence of wind power system, are compared. The contribution of the paper is to study the influence of wind power (WP) integrated CBM on ATC evaluation. The results showed that the incorporation of CBM, in the presence of renewable energy, has a significant influence on ATC, without which ATC would be inaccurately estimated. Simulations using IEEE 24-Bus RTS is used to implement the proposed approach. This approach can be employed by transmission operators to assess the technoeconomic viability of the power network for possible power transactions.
  • Field loss calculation of a wind-powered axial flux alternator by analytical equations
    Abdulrahaman Okino Otuoze, Olatunji Obalowu Mohammed, Oladimeji Ibrahim, Sani Salisu, Abioye Abiodun Emmanuel, et al.
    Engineering Reports, 2021
    Various techniques have been investigated and proposed for core loss minimization in electrical machines. Nevertheless, many of such methods are mostly complicated and not suitable for consideration at a preliminary design stage. In this work, a simplified procedure which uses an analytical approach to minimizing the field's losses of an Axial Flux Permanent Magnet Alternator (AFPMA), is presented. First, the output equation of an AFPMA is referred, and then the minimization of the losses is investigated by analytical differential equations. The result of the derived‐specific magnetic loading is investigated using three different core materials, namely 35RM300, 50JN350, and 65JN800, and is found to reduce with increased frequencies. The 35RM300 core material gives the maximum specific magnetic loading and minimum power loss at investigated frequencies of 50 to 500 Hz. Although the 35RM300 core material gives the best performance, the optimal values are only determined as suitable by the manufacturer's design criteria. This study is a key indicator for a simple and efficient core material selection in the design of a Wind‐Powered AFPMA without the need for complicated analyses at the preliminary design stage.
  • Capacity benefit margin assessment in the presence of renewable energy
    Olatunji Obalowu Mohammed, Mohd Wazir Mustafa, Muhammad Naveed Aman, Sani Salisu, Abdulrahaman Okino Otuoze
    International Transactions on Electrical Energy Systems, 2020
  • Penalization of electricity thefts in smart utility networks by a cost estimation-based forced corrective measure
    Abdulrahaman Okino Otuoze, Mohd Wazir Mustafa, Abdulhakeem Temitope Abdulrahman, Olatunji Obalowu Mohammed, Sani Salisu
    Energy Policy, 2020
  • A Graph-Theoretic Approach to Capacity Benefit Margin Calculation for Large Multiarea Power Systems
    Olatunji Obalowu Mohammed, Mohd Wazir Mustafa, Muhammad Naveed Aman
    IEEE Systems Journal, 2020
  • Assessment of technical and economic feasibility for a hybrid PV-wind-diesel-battery energy system in a remote community of north central Nigeria
    Sani Salisu, Mohd Wazir Mustafa, Lanre Olatomiwa, Olatunji Obalowu Mohammed
    Alexandria Engineering Journal, 2019
  • A systematic approach to evaluating the influence of demand side management resources on the Interarea capacity benefit margin
    Olatunji Obalowu Mohammed, Mohd Wazir Mustafa, Daw Saleh Sasi Mohammed, Sani Salisu, Nabila Ahmad Rufa’i
    Bulletin of Electrical Engineering and Informatics, 2019
  • Electricity theft detection by sources of threats for smart city planning
    Abdulrahaman Okino Otuoze, Mohd Wazir Mustafa, Olatunji Obalowu Mohammed, Muhammad Salman Saeed, Nazmat Toyin Surajudeen‐Bakinde, et al.
    Iet Smart Cities, 2019
  • Solar radiation forecasting in Nigeria based on hybrid PSO-ANFIS and WT-ANFIS approach
    Sani Salisu, Mohd Wazir Mustafa, Mamunu Mustapha, Olatunji Obalowu Mohammed
    International Journal of Electrical and Computer Engineering, 2019
  • Implementation of a Data Transmission System using Li-Fi Technology
    E. Ifada, N.T. Surajudeen-Bakinde, N. Faruk, A Abubakar, O.O Mohammed, et al.
    2019 2nd International Conference of the IEEE Nigeria Computer Chapter Nigeriacomputconf 2019, 2019
  • Available transfer capability calculation methods: A comprehensive review
    Olatunji Obalowu Mohammed, Mohd Wazir Mustafa, Daw Saleh Sasi Mohammed, Abdulrahaman Okino Otuoze
    International Transactions on Electrical Energy Systems, 2019
  • Techno-economic feasibility analysis of an offgrid hybrid energy system for rural electrification in Nigeria
    International Journal of Renewable Energy Research, 2019
  • Statistical evaluation of measured rain attenuation in tropical climate and comparison with prediction models
    Abdulrahman A. Yusuf, A Falade, B. J Olufeagba, O. O Mohammed, Tharek A. Rahman
    Journal of Microwaves Optoelectronics and Electromagnetic Applications, 2016
  • Tower sharing and the associated constraints in multi-operator GSM base transceiver station
    Lateef Kadir, A.J. Falade, A.Y. Abdulrahman, Olatunji Mohammed
    International Journal of Wireless and Mobile Computing, 2016
  • Performance evaluation of three PID controller tuning algorithm on a process plant
    Oladimeji Ibrahim, Sulyman A. Y. Amuda, Olatunji O. Mohammed, Ganiyu A. Kareem
    International Journal of Electrical and Computer Engineering, 2015

RECENT SCHOLAR PUBLICATIONS

  • Bandwidth Improvement of a 2.4 GHz Microstrip Patch Antenna Array with U-Slot Ground Plane for Wireless Applications
    SO Zakariyya, KO Osunsanya, RA Alao, OO Mohammed, BO Sadiq
    Journal of Engineering Innovation and Sustainability 1 (2), 23-32 , 2025
    2025
  • On the Choice of System Strength Metrics for the Allocation and Sizing of Synchronous Condensers in Power Grids
    SO Sanni, OO Mohammed, S Chakraborty, AI Abdullateef, AO Otuoze, ...
    IEEE Access , 2025
    2025
    Citations: 4
  • Assessment of hybrid solar photovoltaic-diesel systems for mini-marts in rural commercial applications
    OO Mohammed, JY Oricha, SO Sanni, RK Soremekun
    Majlesi Journal of Electrical Engineering 19 (1 (March 2025)), 1-8 , 2025
    2025
    Citations: 1
  • Saving utility costs optimization in generator operation planning based on scalable alternatives of probabilistic demand-side management
    DSS Mohammed, MM Othman, OO Mohammed, M Ahmadipour, ...
    Sustainable Energy Technologies and Assessments 75, 104258 , 2025
    2025
    Citations: 1
  • Identifying interaction boundary of inverter-based generation in assessing system strength of power grids using relative electrical distance concept
    SO Sanni, OO Mohammed, AI Abdullateef, DSS Mohammed, JY Oricha
    Renewable Energy Focus 51, 100627 , 2024
    2024
    Citations: 6
  • Investigating the impact of solar PV and wind energy systems on the strength of a longitudinal power grid
    SO Sanni, AI Abdullateef, OO Mohammed, MN Aman, AK Raji, ID Fajuke
    e-Prime-Advances in Electrical Engineering, Electronics and Energy 8, 100593 , 2024
    2024
    Citations: 11
  • Strengthening the nigerian grid: Impact of SCR thresholds on synchronous condenser allocation for inverter-based generation integration
    SO Sanni, OO Mohammed, AI Abdullateef, EO Badmus, FI Bawonda
    2024 IEEE Power and Energy Conference at Illinois (PECI), 1-5 , 2024
    2024
    Citations: 5
  • ChatGPT Evaluation: Can It Replace Grammarly and Quillbot Tools?
    HA Younis, O Mohammed, M Muthmainnah, TM Sahib, D Akhtom, ...
    British Journal of Applied Linguistics 3 (2), 34-46 , 2023
    2023
    Citations: 26
  • Assessment of Wind and Solar Energy Potential at ADUSTECH-Wudil for Hybrid Electricity Generation Using Weibull Distribution and Samani Model
    M Mamunu, T Aminu, UA Magaji, S Sani, OO Mohammed, DE Abah
    Zaria Journal of Electrical Engineering Technology 12 (1 & 2), 1-8 , 2023
    2023
    Citations: 1
  • Model based predictive control strategy for water saving drip irrigation
    AE Abioye, MSZ Abidin, MSA Mahmud, S Buyamin, OO Mohammed, ...
    Smart Agricultural Technology 4, 100179 , 2023
    2023
    Citations: 59
  • PAPER 154–THE IMPLICATIONS OF LOW SHORT-CIRCUIT CAPACITY ON THE STRENGTH OF POWER GRID: A NIGERIAN CASE STUDY
    SO Sanni, AI Abdullateef, OO Mohammed
    Conference Proceedings, 1st Faculty of Engineering and Technology Conference … , 2023
    2023
  • The implications of low short-circuit capacity on the strength of power grid: a Nigerian case study
    SO Sanni, AI Abdullateef, OO Mohammed
    Faculty of Engineering and Technology , 2023
    2023
    Citations: 5
  • Assessment of the influence of wind energy incorporated capacity benefit margin in ATC computation
    OO Mohammed, MW Mustafa, S Salisu, A Memon, S Hussain, AO Otuoze, ...
    International Journal of Applied Power Engineering 11 (2), 145-155 , 2022
    2022
    Citations: 4
  • A Variable Speed Bidirectional DC Motor Drive
    AM Usman, O Ibrahim, SS Wuraola, OS Zakariyya, AO Otuoze, ...
    ATBU Journal of Science, Technology and Education 9 (3), 355-363 , 2021
    2021
  • Salp swarm algorithm–based optimal vector control scheme for dynamic response enhancement of brushless double-fed induction generator in a wind energy conversion system
    M Ahsanullah, M Mohd Wazir, J Touqeer Ahmed, OO Mohammed, ...
    International Transactions on Electrical Energy Systems , 2021
    2021
    Citations: 14
  • Replacement Model for Street Lighting Systems
    A Otuoze, AM Usman, YA Adediran, OO Mohammed, OS Zakariyya
    Nigerian Journal of Technology , 2021
    2021
  • Replacement Model for Street Lighting Systems
    OSZ AM Usman, YA Adediran, AO Otuoze, OO Mohammed
    Nigerian Journal of Technology 40 (1), 49-55 , 2021
    2021
    Citations: 3
  • Field loss calculation of a wind‐powered axial flux alternator by analytical equations
    AMD Abdulrahaman Okino Otuoze, Olatunji Obalowu Mohammed, Oladimeji Ibrahim ...
    Engineering Reports, e12391 , 2021
    2021
    Citations: 2
  • Capacity benefit margin assessment in the presence of renewable energy
    OO Mohammed, MW Mustafa, MN Aman, S Salisu, AO Otuoze
    International Transactions on Electrical Energy Systems 30 (9), etep12502 , 2020
    2020
    Citations: 9
  • Penalization of electricity thefts in smart utility networks by a cost estimation-based forced corrective measure
    AO Otuoze, MW Mustafa, AT Abdulrahman, OO Mohammed, S Salisu
    Energy policy 143, 111553 , 2020
    2020
    Citations: 13

MOST CITED SCHOLAR PUBLICATIONS

  • Assessment of technical and economic feasibility for a hybrid PV-wind-diesel-battery energy system in a remote community of north central Nigeria
    S Salisu, MW Mustafa, L Olatomiwa, OO Mohammed
    Alexandria Engineering Journal 58 (4), 1103-1118 , 2019
    2019
    Citations: 167
  • Available transfer capability calculation methods: A comprehensive review
    OO Mohammed, MW Mustafa, DSS Mohammed, AO Otuoze
    International Transactions on Electrical Energy Systems 29 (6), e2846 , 2019
    2019
    Citations: 104
  • Virtual synchronous generator: an overview
    OO Mohammed, AO Otuoze, S Salisu, O Ibrahim, NA Rufa'i
    Nigerian Journal of Technology 38 (1), 153-164 , 2019
    2019
    Citations: 62
  • Model based predictive control strategy for water saving drip irrigation
    AE Abioye, MSZ Abidin, MSA Mahmud, S Buyamin, OO Mohammed, ...
    Smart Agricultural Technology 4, 100179 , 2023
    2023
    Citations: 59
  • Electricity theft detection by sources of threats for smart city planning
    AO Otuoze, MW Mustafa, OO Mohammed, MS Saeed, ...
    IET Smart Cities 1 (2), 52-60 , 2019
    2019
    Citations: 48
  • Techno-Economic Feasibility Analysis of an Off-Grid Hybrid Energy System for Rural Electrification in Nigeria.
    S Salisu, MW Wazir, OO Mohammed, M Mustapha, JA Touqeer
    International Journal of Renewable Energy Research 9 (1) , 2019
    2019
    Citations: 39
  • Solar radiation forecasting in Nigeria based on hybrid PSO-ANFIS and WT-ANFIS approach
    MWM Sani Salisu, M Mustapha, OO Mohammed
    International Journal of Electrical and Computer Engineering (IJECE) 9 (5 … , 2019
    2019
    Citations: 30
  • ChatGPT Evaluation: Can It Replace Grammarly and Quillbot Tools?
    HA Younis, O Mohammed, M Muthmainnah, TM Sahib, D Akhtom, ...
    British Journal of Applied Linguistics 3 (2), 34-46 , 2023
    2023
    Citations: 26
  • Statistical Evaluation of measured rain attenuation in tropical climate and Comparison with prediction models
    AA Yusuf, A Falade, BJ Olufeagba, OO Mohammed, TA Rahman
    Journal of Microwaves, Optoelectronics and Electromagnetic Applications vol … , 2016
    2016
    Citations: 26
  • Implementation of a data transmission system using Li-Fi technology
    E Ifada, NT Surajudeen-Bakinde, N Faruk, A Abubakar, OO Mohammed, ...
    2019 2nd International Conference of the IEEE Nigeria Computer Chapter … , 2019
    2019
    Citations: 24
  • A Graph-Theoretic Approach to Capacity Benefit Margin Calculation for Large Multiarea Power Systems
    OO Mohammed, MW Mustafa, MN Aman
    IEEE Systems Journal , 2019
    2019
    Citations: 17
  • Salp swarm algorithm–based optimal vector control scheme for dynamic response enhancement of brushless double-fed induction generator in a wind energy conversion system
    M Ahsanullah, M Mohd Wazir, J Touqeer Ahmed, OO Mohammed, ...
    International Transactions on Electrical Energy Systems , 2021
    2021
    Citations: 14
  • A review of smart grids deployment issues in developing countries
    AO Otuoze, AM Usman, OO Mohammed, AA Jimoh
    Arid Zone Journal of Engineering, Technology and Environment 13 (6), 858 , 2017
    2017
    Citations: 14
  • Penalization of electricity thefts in smart utility networks by a cost estimation-based forced corrective measure
    AO Otuoze, MW Mustafa, AT Abdulrahman, OO Mohammed, S Salisu
    Energy policy 143, 111553 , 2020
    2020
    Citations: 13
  • Performance Evaluation of three PID Controller Tuning Algorithm on a process plant
    O Ibrahim, SAY Amuda, OO Mohammed, GA Kareem
    International Journal of Electrical and Computer Engineering (IJECE) 5 (5 … , 2015
    2015
    Citations: 13
  • THE CHALLENGES AND PANACEAS TO POWER DISTRIBUTION LOSSES IN NIGERIA
    OO Mohammed, AO Otuoze, S Salisu, AE Abioye, AM Usman, RA Alao
    ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY & ENVIRONMENT 16 (1), 120-136 , 2020
    2020
    Citations: 12
  • Fraud Detection for Metered Costumers in Power Distribution Companies Using C5.0 Decision Tree Algorithm
    MS Saeed, MW Mustafa, UU Sheikh, S Salisu, OO Mohammed
    Journal of Computational and Theoretical Nanoscience 17 (2), 1318-1325 , 2020
    2020
    Citations: 12
  • A New Technique Of Load Shedding To Stabilize Voltage Magnitude And Fast Voltage Stability Index By Using Hybrid Optimization
    RM Larik, MW Mustafa, AO Otuoze, OO Mohammed, AH Sule
    2018
    Citations: 12
  • Investigating the impact of solar PV and wind energy systems on the strength of a longitudinal power grid
    SO Sanni, AI Abdullateef, OO Mohammed, MN Aman, AK Raji, ID Fajuke
    e-Prime-Advances in Electrical Engineering, Electronics and Energy 8, 100593 , 2024
    2024
    Citations: 11
  • A hybrid PSO-ANFIS approach for horizontal solar radiation prediction in Nigeria
    S Salisu, MW Mustafa, M Mustapha, AO Otuoze, OO Mohammed
    ELEKTRIKA-Journal of Electrical Engineering 18 (2), 23-32 , 2019
    2019
    Citations: 11