Dr Rahmat Ullah

(e/fe)

AE, PhD

2025

• Ullah, R., Ullah, I., Ahmed, R., Reid, A. and Haddad, M. 2025. Revitalising DC-aged silicone rubber composites: hybrid-silica/alumina triumph over multi-stress ageing. IET Nanodielectrics 8(1), article number: e70003. (10.1049/nde2.70003)

2024

• Chaima, S., Aymen, F., Alkuhayli, A., Ullah, R. and El-Bayeh, C. Z. 2024. A comparison between the ocean and offshore photovoltaic production system into microgrids: benefits and limits. Frontiers in Energy Research 12, article number: 1466133. (10.3389/fenrg.2024.1466133)
• Mustafa, E., Ahmad, B., Ali, M. I., Afia, R. S. A. and Ullah, R. 2024. Degradation assessment of in-service transformer oil based on electrical and chemical properties. Applied Sciences 14(24), article number: 11767. (10.3390/app142411767)
• Kumar, K. K. P., Das, D. C., Soren, N., Veerendra, A. S., Flah, A., Alkuhayli, A. and Ullah, R. 2024. A multi-energy inertia-based coordinated voltage and frequency regulation in isolated hybrid power system using PI-TISMC. Frontiers in Energy Research 12, article number: 1466165. (10.3389/fenrg.2024.1466165)
• Boukhchana, A., Flah, A., Alkuhayli, A., Ullah, R. and El-Bayeh, C. Z. 2024. Optimal planning strategy for charging and discharging an electric vehicle connected to the grid through wireless recharger. Frontiers in Energy Research 12, article number: 1453711. (10.3389/fenrg.2024.1453711)
• Ullah, I., Shahzadi, U., Bashir, M. M., Ullah, R., Iqbal, S. and Nazir, M. T. 2024. Analyses of RTV composite coating under DC stress for high voltage outdoor insulation. Presented at: 5th International Conference on Dielectrics (ICD), Toulouse, France, 30 June - 04 July 2024Proceedings 5th International Conference on Dielectrics (ICD). IEEE, (10.1109/ICD59037.2024.10613078)
• Zhang, K., Reid, A., Michelarakis, M., Ullah, R. and Haddad, M. A. 2024. Correlation method to explore corona discharge dynamics under DC harmonic voltages. Presented at: 5th International Conference on Dielectrics (ICD), Toulouse, France, 30 June - 04 July 2024Proceedings 2024 IEEE 5th International Conference on Dielectrics (ICD). IEEE, (10.1109/ICD59037.2024.10613204)
• Ullah, R. et al. 2024. Enhanced partial discharge evaluation through integrated RF and IEC measurements. Presented at: 5th International Conference on Dielectrics (ICD), Toulouse, France, 30 June - 04 July 2024Proceedings 2024 5th International Conference on Dielectrics (ICD). IEEE, (10.1109/ICD59037.2024.10613117)
• Ahmed, R., ABD-Rahman, R., Ullah, Z., Ullah, R., Fairouz Mohd Yousof, M. and Ullah, K. 2024. Partial discharge characterization of HFO(E) gas using ultra-high frequency (UHF) antenna for medium voltage switchgear application. IEEE Access 12, pp. 81196 - 81205. (10.1109/ACCESS.2024.3411059)
• Ahmed, R., Abd-Rahman, R., Ullah, Z., Ullah, R., Sami, I. and Yousof, M. F. M. 2024. The insulation performance of novel refrigerant gas as an alternative to SF6 for medium voltage switchgear. IEEE Access 12, pp. 47068-47079. (10.1109/ACCESS.2024.3382716)

2023

• Ahmed, R., Rahman, R. A., Aldosary, A. S., Al-Ramadan, B., Ullah, R. and Jamal, A. 2023. Analysis of the insulation characteristics of hexafluorobutene (C 4 H 2 F 6 ) gas and mixture with CO 2 /N 2 as an alternative to SF 6 for medium-voltage applications. Applied Sciences 13(15), article number: 8940. (10.3390/app13158940)