W. Dunford

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A novel space vector method which uses average currents over a switching cycle is proposed for the analysis of three-phase power factor correction circuits operating in discontinuous conduction mode. The technique is applied to a family of circuits with switches on the AC-side. The improvement in performance and wider flexibility of operation over DC-side(More)
Simulation of drive systems incorporating fuel cells and batteries is prone to difficulties associated with the long load cycles and the nature of their operation. In this paper we present a practical experimental strategy for investigating the performance of a range of vehicle systems. Hardware is scaled using control methods and power electronics allowing(More)
This paper presents and analyses the principle of zero-voltage-zero-current switched phase shifted full-bridge DC/DC converters using the parallel capacitor. In principle, the parallel capacitance across the secondary terminals of the transformer and the primary side inductor (usually referred to as leakage inductor) are used to achieve a(More)
An experimental study of an observer-based closed-loop speed control scheme sensitivity to load torque disturbances, drive parameter variations, and observer pole location is analyzed theoretically and verified experimentally. These results demonstrate the observer-controller separation principle as well. The effect of observer design on estimation(More)
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