Dr Walid Issa

Dr Walid Issa BSc, MSc, PhD, FHEA

Associate Professor in Power Electronics


Dr Walid Issa received his PhD in Renewable Energy from University of Exeter, 2015. Walid joined Sheffield Hallam in September 2016 as a Lecturer in Electrical and Electronic Engineering then a worked as course leader in 2017-2021 for MEng/BEng Electrical and Electronic Engineering. Now he is the EDI lead in the Engineering Department. His main research interests include power electronics, digital control, DC/AC and DC/DC converters and their applications microgrids, EV and smart buildings.


Vision: Achieve novelty, innovation, and impact
Mission: Perform outstanding teaching, research, and administrative work with national and international impact to increase the University reputation

Prior to joining SHU, Dr. Walid undertook a 2-year PDRA position at the University of Exeter, 2014-2016, under supervision of Prof. Mohammad Abusara within a funded-EPSRC project - RESCUES (EP/K03619X/1). Issa’s research focuses on the development of the future smart grids as a solution to reduce CO2 emissions, to integrate more renewable resources and de-risking the growing numbers of Electric Vehicles (EV). He developed numerical models and control methods with experimental validation to investigate the dynamic behaviour of microgrids during unintentional islanding scenarios, which is essential tools for stability and robustness development for these smart grids. Furthermore, his research investigates strategies of integrating multi-unit alternative energy resources in the future smart grids including smart buildings solutions and EVs.

Dr Issa has developed a reduced-order microgrid model, to accelerate the stability investigation phases and considers, for the first time, the unintentional switching between grid-connected mode and island mode, when an incident or bad weather conditions happen, and developed a controller to minimize the sources tripping rate that impacts the system quality. These techniques have been further developed in for multiple converters for bidirectional and unidirectional energy sources in a microgrid. Dr Issa for the first time used the participation factor analysis, which is usually used for power systems, to investigate and approve the superiority of a control loop over another. That led to a creation of a new controller selection methodology and more optimized controllers perform more efficiently. Dr Issa has developed new methodologies and modelling for unifying controllers for power converters operating in different modes in a microgrid able to work in grid-connected and island modes.

In addition, he has also worked in a multidisciplinary research team led by Prof. Tapas Mallick to develop solutions for Building-Integrated Photovoltaic (BIPV) systems. Dr Issa investigated the potential of semi-transparent Photovoltaic cells to enhance the energy profile of Façade. During his doctoral and postdoctoral positions, Issa has worked on wide variety of topics, as demonstrated through his publications [Google Scholar] focusing on power electronics converters and BIPV systems and controllers.

Dr Issa has cooperated with INSA de Strasbourg (PI) from France to obtain a European fund (€1m) as a consortium consultancy member from SHU with other two German partners for the VEHICLE project, has been awarded a university mobility grant (£4k) for research networking and collaboration and equipment funding (£70k). He won the Driving Electric Revolution Innovate UK grant (£25k). He has supervised, to completion, two PhD students, 18 MSc students, and is currently supervising three PhD students.
Continuously the recognition of his research is also evidenced by invitations to contribute to special editions of journals (Special issue: Technologies and Materials for Renewable Energy, Environment and Sustainability (TMREES) of Energy Procedia Journal), and to be a guest editor (Special Issue "Building Integrated PV System"). He is also a technical reviewer for IEEE Transactions on Power Electronics, Industrial Electronics, IET Power Electronics, etc and is EPSRC FULL College Member and review panel member for FONDECYT, IEEE senior member and member of IEEE Power Electronics Society Technical Committee on Control and Modelling of Power Electronics.


Specialist areas of interest

  • DC/AC and DC/DC converters (Modelling, Design and Control)
  • Smart grids and Microgrids
  • Microgrid Modelling
  • Renewable energy (Solar and Wind) Integration
  • Smart Buildings and Integrated solutions
  • Rapid control prototyping
  • Energy Harvesting


Department of Engineering and Mathematics

College of Business, Technology and Engineering

Electrical, Power, Control Engineering

Electrical and Electronic Engineering


Walid is leading several modules over all levels covering

• Power Electronics & Drives
• Sustainable Energy
• Electronics



Current Project
Driving the electric revolution – building talent for the future

Previous Project
RESCUES: Reliable and Efficient System for Community Energy Solution


Collaborators and sponsors

  • Environment and Sustainability Institute (ESI), University of Exeter
  • Electro-Mechanical Engineering research group (EME), University of Southampton


Journal articles

Issa, W., Sharkh, S., & Abusara, M. (2024). A review of recent control techniques of drooped inverter‐based AC microgrids. Energy Science & Engineering. http://doi.org/10.1002/ese3.1670

Constantinou, S., Al‐naemi, F., Alrashidi, H., Mallick, T., & Issa, W. (2023). A review on technological and urban sustainability perspectives of advanced building‐integrated photovoltaics. Energy Science & Engineering. http://doi.org/10.1002/ese3.1639

Lotfi, A., Shahbazi, M., Issa, W., Wheeler, P., Sekiya, H., Kazimierczuk, M.K., & Blaabjerg, F. (2023). Steady-state analysis of class-E/F n inverter with MOSFET nonlinear output capacitance at any grading coefficient. IEEE Access. http://doi.org/10.1109/access.2023.3309295

Alatise, O., Deb, A., Bashar, E., Ortiz Gonzalez, J., Jahdi, S., & Issa, W. (2023). A Review of Power Electronic Devices for Heavy Goods Vehicles Electrification: Performance and Reliability. Energies, 16 (11). http://doi.org/10.3390/en16114380

Lami, M., Al‐naemi, F., & Issa, W. (2022). Automated quantification system for vision through polymer‐dispersed liquid crystal double‐glazed windows: circuit implementation. IET Circuits, Devices & Systems. http://doi.org/10.1049/cds2.12135

Issa, W., Ortiz Gonzalez, J., & Alatise, O. (2022). Design of a gate-driving cell for enabling extended SiC MOSFET voltage blocking. Energies, 15 (20). http://doi.org/10.3390/en15207768

Musameh, H., Alrashidi, H., Al-Neami, F., & Issa, W. (2022). Energy performance analytical review of semi-transparent photovoltaics glazing in the United Kingdom. Journal of Building Engineering. http://doi.org/10.1016/j.jobe.2022.104686

Lami, M., Al-naemi, F., Jabbar, H.A., Alrashidi, H., & Issa, W. (2022). Optimisation of wasted air utilisation in thermal loss reduction in double-glazed windows of commercial buildings in cold regions. International Journal of Energy and Environmental Engineering, 14 (2), 145-165. http://doi.org/10.1007/s40095-022-00499-0

Valedsaravi, S., El Aroudi, A., Barrado-Rodrigo, J.A., Issa, W., & Martínez Salamero, L. (2022). Control design and parameter tuning for islanded microgrids by combining different optimization algorithms. Energies, 15 (10). http://doi.org/10.3390/en15103756

Lami, M., Al-Naemi, F., Alrashidi, H., & Issa, W. (2022). Quantifying of vision through polymer dispersed liquid crystal double-glazed window. Energies, 15 (9). http://doi.org/10.3390/en15093196

Azrik Roslan, M., Ahmed, K., Adam, G., Elkhateb, A., Issa, W., & Williams, B. (2022). Semicentralized power sharing scheme for islanded parallel-connected inverters. International Transactions on Electrical Energy Systems, 2022. http://doi.org/10.1155/2022/8319408

Alrashidi, H., Issa, W., Sellami, N., Sundaram, S., & Mallick, T. (2022). Thermal performance evaluation and energy saving potential of semi-transparent CdTe in Façade BIPV. Solar Energy, 232, 84-91. http://doi.org/10.1016/j.solener.2021.12.037

Alhasnawi, B.N., Jasim, B.H., Issa, W., Anvari-Moghaddam, A., & Blaabjerg, F. (2021). Erratum: Alhasnawi et al. A New Robust Control Strategy for Parallel Operated Inverters in Green Energy Applications. Energies 2020, 13, 3480. Energies, 15 (1), 40. http://doi.org/10.3390/en15010040

Khalifeeh, R., Alrashidi, H., Sellami, N., Mallick, T., & Issa, W. (2021). State-of-the-Art Review on the Energy Performance of Semi-Transparent Building Integrated Photovoltaic across a Range of Different Climatic and Environmental Conditions. Energies, 14 (12). http://doi.org/10.3390/en14123412

Naji Alhasnawi, B.N., Jasim, B.H., Issa, W., & Esteban, M.D. (2020). A Novel Cooperative Controller for Inverters of Smart Hybrid AC/DC Microgrids. Applied Sciences, 10 (17), 6120. http://doi.org/10.3390/app10176120

Alhasnawi, B.N., Jasim, B., Issa, W., Anvari-Moghaddam, A., & Blaabjerg, F. (2020). A New Robust Control Strategy for Parallel Operated Inverters in Green Energy Applications. Energies, 13 (13). http://doi.org/10.3390/en13133480

Boukerdja, M., Chouder, A., Hassaine, L., Bouamama, B.O., Issa, W., & Louassaa, K. (2020). H∞ based control of a DC/DC buck converter feeding a constant power load in uncertain DC microgrid system. ISA Transactions. http://doi.org/10.1016/j.isatra.2020.05.031

Alrashidi, H., Issa, W., Sellami, N., Ghosh, A., Mallick, T.K., & Sundaram, S. (2020). Performance assessment of cadmium telluride-based semi-transparent glazing for power saving in façade buildings. Energy and Buildings, 109585. http://doi.org/10.1016/j.enbuild.2019.109585

Alrashidi, H., Ghosh, A., Issa, W., Sellami, N., Mallick, T.K., & Sundaram, S. (2019). Thermal performance of semitransparent CdTe BIPV window at temperate climate. Solar Energy, 195, 536-543. http://doi.org/10.1016/j.solener.2019.11.084

Bendib, A., Chouder, A., Kara, K., Kherbachi, A., Barkat, S., & Issa, W. (2019). New modeling approach of secondary control layer for autonomous single-phase microgrids. Journal of the Franklin Institute, 356 (13), 6842-6874. http://doi.org/10.1016/j.jfranklin.2019.04.020

Issa, W., Sharkh, S., & Abusara, M. (2019). Hybrid Generators-based AC Microgrid Performance Assessment in Island Mode. IET Power Electronics. http://doi.org/10.1049/iet-pel.2018.5295

Alrashidi, H., Ghosh, A., Issa, W., Sellami, N., Mallick, T.K., & Sundaram, S. (2018). Evaluation of solar factor using spectral analysis for CdTe photovoltaic glazing. Materials letters, 237, 332-335. http://doi.org/10.1016/j.matlet.2018.11.128

Issa, W., Elkhateb, A., Abusara, M., & Mallick, T. (2018). Control Strategy for Uninterrupted Microgrid Mode Transfer during Unintentional Islanding Scenarios. IEEE Transactions on Industrial Electronics, 65 (6), 4831-4839. http://doi.org/10.1109/TIE.2017.2772199

AlBadwawi, R., Issa, W., Abusara, M., & Mallick, T. (2018). Supervisory Control for Power Management of an Islanded AC Microgrid Using Frequency Signalling-Based Fuzzy Logic Controller. IEEE Transactions on Sustainable Energy. http://doi.org/10.1109/TSTE.2018.2825655

Issa, W., El Khateb, A., Anani, N., & Abusara, M. (2017). Smooth mode transfer in AC microgrids during unintentional islanding. Energy Procedia, 134, 12-20. http://doi.org/10.1016/j.egypro.2017.09.592

Hossain, M.A., Pota, H., Issa, W., & Hossain, M.J. (2017). Overview of AC microgrid controls with inverter-interfaced generations. Energies, 10 (9), 1300. http://doi.org/10.3390/en10091300

Issa, W., Sharkh, S., Mallick, T., & Abusara, M. (2016). Improved reactive power sharing for parallel-operated inverters in islanded microgrids. Journal of Power Electronics, 16 (3), 1152-1165. http://doi.org/10.6113/JPE.2016.16.3.1152

Issa, W., Abusara, M., & Sharkh, S. (2014). Control of Transient Power during Unintentional Islanding of Microgrids. IEEE Transactions on Power Electronics, 30 (8), 4573-4584. http://doi.org/10.1109/TPEL.2014.2359792

Issa, W., Albadwawi, R., Mesbahi, T., & Abusara, M. (n.d.). Nanogrid Power Management Based on Fuzzy Logic Controller. .

Conference papers

Masoud, M.I., & Issa, W. (2023). Road map of power electronics knowledge and skills for enhancing engineering graduates' employability. 12th International Conference on Power Electronics, Machines and Drives (PEMD 2023). http://doi.org/10.1049/icp.2023.2652

Musameh, H., Al-Naemi, F., Issa, W., & Alrashidi, H. (2023). The thermal and optical characterization of semi-transparent photovoltaics samples for buildings energy evaluations. In 58th International Universities Power Engineering Conference, Dublin, Ireland, 29 August 2023 - 1 September 2023. IEEE: http://doi.org/10.1109/UPEC57427.2023.10294995

Issa, W., Al-Naemi, F., Al-Greer, M., & Bashir, I. (2023). Review on power electronics curriculums in academia and framework development. In 58th International Universities Power Engineering Conference, Technological University Dublin, Ireland, 29 August 2023 - 1 September 2023. IEEE: http://doi.org/10.1109/UPEC57427.2023.10294725

Oufettoul, H., Motahhir, S., Ait Abdelmoula, I., Aniba, G., Issa, W., & Mahir, O. (2023). Optimum MPPT technique for reconfiguring thephotovoltaic array under partial shading failure. In 12th International conference on renewable energy research and applications, Oshawa, Canada, 29 August 2023 - 1 September 2023 (pp. 331-338). IEEE: http://doi.org/10.1109/ICRERA59003.2023.10269423

Deb, A., Gonzalez, J.-.O., Wu, R., Issa, W., Jahdi, S., & Alatise, O. (2023). Silicon Carbide Enabled Medium Voltage DC Transmission Systems for Rapid Electric Vehicle Charging in the UK. In CIRED 2023. The 27th International Conference & Exhibition on Electricity Distribution, Rome, Italy, 12 June 2023 - 15 June 2023 (pp. 2074-2078). IET Digital Library: http://doi.org/10.1049/icp.2023.1179

Masoud, M., Issa, W., & Yates, W. (2023). A tutorial on double pulse test of silicon and silicon carbide MOSFETs. In 6th IEEE Workshop On Electrical Machines Design, Control And Diagnosis – WEMDCD 2023, Newcastle Upon Tyne, UK, 13 April 2023 - 14 April 2023. IEEE: http://doi.org/10.1109/WEMDCD55819.2023.10110895

Issa, W., Ortiz-Gonzalez, J., & Hu, Y. (2022). Series SiC MOSFET-Based low gain buck converter for enabling access to MVDC network. In The 11th International Conference on Power Electronics, Machines and Drives (PEMD 2022), Newcastle, England, 21 June 2022 - 23 June 2022 (pp. 434-438). Institute of Electrical and Electronics Engineers (IEEE): http://doi.org/10.1049/icp.2022.1033

Musameh, H., Alrashidi, H., Al-Naemi, F., & Issa, W. (2022). Quantifying the energy saving potential when utilising CdTe STPV glazing systems. In International Conference on Technologies and Materials for Renewable Energy, Environment and Sustainability, France, 9 May 2022 - 11 May 2022.

Lami, M., Al-Naemi, F., Jabbar, H., Alrashidi, H., & Issa, W. (2021). Thermal Loss Reduction Using a Ventilated Double-Glazed Window for Commercial Buildings in Average-Climate Environments. In 2021 International Conference on Sustainable Energy Engineering and Application (ICSEEA), Indonesia, 12 October 2021 - 14 October 2021. IEEE

Issa, W., Al-Naemi, F., Konstantopoulos, G., Sharkh, S., & Abusara, M. (2019). Stability Analysis and Control of a Microgrid against Circulating Power between Parallel Inverters. Energy Procedia, 157, 1061-1070. http://doi.org/10.1016/j.egypro.2018.11.273

Issa, W., & Elkhateb, A. (2018). Virtual Impedance Impact on Inverter Control Topologies. 2018 7th International Conference on Renewable Energy Research and Applications (ICRERA). http://doi.org/10.1109/icrera.2018.8566985

Al-Naemi, F., Issa, W., Ramadan, A., & Hall, J. (2018). Design and modelling of permanent magnet fault current limiter For electrical power applications. In 53rd International Universities Power Engineering Conference 2018, Glasgow, 4 September 2018 - 7 September 2018. http://www.upec2018.com/

Issa, W., Sharkh, S.M., Albadwawi, R., Abusara, M., & Mallick, T.K. (2017). DC link voltage control during sudden load changes in AC microgrids. In Proceedings 2017 IEEE International Symposium on Industrial Electronics (ISIE), (pp. 76-81). IEEE: http://doi.org/10.1109/ISIE.2017.8001226

Al Badwawi, R., Issa, W., Mallick, T., & Abusara, M. (2016). DC microgrid power coordination based on fuzzy logic control. In 2016 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), (pp. 1-10). IEEE: http://doi.org/10.1109/EPE.2016.7695530

Al Badwawi, R., Issa, W., Mallick, T., & Abusara, M. (2016). Power management of AC islanded microgrids using fuzzy logic. In 8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016). IET Digital Library: http://doi.org/10.1049/cp.2016.0348

Issa, W.R., Abusara, M.A., & Sharkh, S.M. (2014). Impedance interaction between islanded parallel voltage source inverters and the distribution network. 7th IET International Conference on Power Electronics, Machines and Drives, PEMD 2014.

Issa, W., Albadwawi, R., Mesbahi, T., Hu, Y., & Abusara, M. (2022). Household building nanogrid power management based on fuzzy logic controller. In The 11th International Conference on Power Electronics, Machines and Drives (PEMD 2022), Newcastle, England, 21 June 2022 - 23 June 2022. Institute of Electrical and Electronics Engineers (IEEE)

Book chapters

Issa, W., Abusara, M., Sharkh, S., & Mallick, T. (2015). A small signal model of an inverter-based microgrid including DC link voltages. In Power Electronics and Applications (EPE'15 ECCE-Europe), 2015 17th European Conference on. (pp. 1-10). IEEE: http://doi.org/10.1109/EPE.2015.7309119

Issa, W., Abusara, M.A., & Sharkh, S.M. (2014). Impedance interaction between islanded parallel voltage source inverters and the distribution network. In Power Electronics, Machines and Drives (PEMD 2014), 7th IET International Conference on. IET: http://doi.org/10.1049/cp.2014.0315


Hamed, B., & Issa, W. (2011). A New Approach for Robust Internal Model Control of Nonlinear Systems Control Systems Application.


Issa, W. (2021). High voltage series mosfet switching circuit. https://www.ipo.gov.uk/p-ipsum/Case/ApplicationNumber/GB2115166.7

Other publications

Issa, W. (2020). Walid Issa Plus. Youtube: https://www.youtube.com/channel/UCSfPYhNIpNl0XgzQFPYojzg

Issa, W. (2014). Walid Issa Youtube Channel. Youtube: https://www.youtube.com/channel/UCUNpxcO109gQx7yYxAtXHmA

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