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The use of wind energy in urban contexts, for a number of small power applications, is of greater and greater interest. The urban environment is characterised by multidirectional winds with a wide speed range, therefore it is necessary that the generation system is capable of delivering power in a wide range of operating conditions. For this reason it is of great interest to determine which power...
In order to compensate the worldwide energy consumption that is still rising, the wind energy is becoming more and more important. For this reason, the analysis of wind energy conversion systems, in which the occurrence of faults has a high negative impact, becomes a very important issue. Considering this, the aim of this paper is to present some diagnostic methods for open-circuit faults in the two...
Since standalone power systems with renewable energy generators are becoming competitive with respect to a grid connection solution for supplying telecommunications equipments in remote areas, power electronics converters are facing new challenges to simultaneously match the parameters of the renewable energies and to fulfil the telecommunications strict requirements. This paper presents a variety...
This paper presents an analysis of two different control strategies applied to a bidirectional dc-dc boost converter in a permanent magnet synchronous motor drive for hybrid electric vehicles. A constant rated voltage-fed inverter and a variable voltage control strategy that takes into account the motor mechanical speed to adjust the dc-dc converter output voltage are considered. Moreover, single...
This paper presents a new fault diagnostic technique applied to switched reluctance motor (SRM) drives. A fault is detected when the measured amplitude of the DC bus current differs from its expected amplitude, assuming normal operating conditions. The information about phase currents amplitudes and the control states of all power switches permit to easily estimate the amplitude of the power converter...
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