Mohammad Ali
School of Science & Engineering Atlantic International University, Honolulu, United States
Publications
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Research Article
Maximising Regenerative Energy Return from Dynamo-Motor Traction Drives in Solar PV-Powered Electric Vehicles for Long-Haul Operation with Strong Stability
Author(s): Mohammad Ali*
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 of the on-board DC distribution network. The upper bound on that return is established first, by examining the widely repeated proposition of equal energy return against the first and second laws of thermodynamics. It is established analytically that a dynamo mechanically coupled to the traction load cannot, in isolation, return energy equal to the traction demand: the regenerative path is bounded by a round-trip efficiency of 74.8 per cent computed from the measured component chain, and it can act only upon the fraction of mission energy that is otherwise dissipated in braking. Equality is therefore admissible only w.. Read More»