Kamrun Nahar

Blue Technology in Switchgear for Sustainable Power Transmission Systems: Dielectric, Switching, Life-Cycle and Techno-Economic Modelling of SF₆-Free Clean-Air and Vacuum Gas-Insulated Substations

Abstract Sulphur hexafluoride (SF₆) has been the reference insulating and arc-quenching medium of high-voltage switchgear for six decades, but with a global warming potential of about 24 300 and an atmospheric residence time of the order of 3 200 years it is now the single larges...

Maximising Regenerative Energy Return from Dynamo-Motor Traction Drives in Solar PV-Powered Electric Vehicles for Long-Haul Operation with Strong Stability

Abstract This thesis develops a design method for maximising the energy returned to the traction store of a solar photovoltaic (PV) powered electric vehicle by a dynamo-motor traction drive over a long-haul mission, while maintaining strong small-signal and large-signal stability...