Two modifications to a reference direct methanol fuel-cell (DMFC) system are considered to improve methanol fuel utilisation. Fuel utilisation can be optimised by minimising the parasitic methanol crossover by manipulating methanol concentration in the fuel cells. Simulations of the two systems indicate that there is considerable potential to increase fuel utilisation for dynamic concentration ...

We consider the problem of guaranteeing that transient voltages and currents stay within prescribed bounds in Direct Current (DC) microgrids, when controller does not have access to accurate system dynamics due load being unknown and/or time-varying. To achieve this, we propose an optimization based design using control barrier functions. show proposed has a decentralized structure is robust wi...

This paper presents an experimental investigation into the compression behavior of shape memory alloy hybrid composites (SMAHC) subjected to quasi-static loading taking into account of rotation effects of shape memory wire in basalt continuous filament (BCF) direct roving epoxy composite. Two types of specimen prepared, the BCF direct roving reinforced epoxy composite filled with shape memory w...

Most of the existing control schemes for power systems ensure stability only in presence constant loads and renewable energy sources. Motivated then by inadequacy strategies affected time-varying sources, this article proposes two based on well-known output regulation methodology. The first one...