Emiliano Aldabas

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There is a strong trend in the photovoltaic (PV) inverter technology to use transformerless topologies in order to acquire higher efficiencies combining with very low ground leakage current. In this paper a new topology, based on the HBridge with a new AC bypass circuit consisting in a diode rectifier and a switch with clamping to the DC midpoint is(More)
A new digital current controller with active-null state modulation for voltage source inverter systems (VSI) is presented. The major advantages of the proposed current controller system are: minimisation of the total harmonic distortion (THD) of the output current waveform and maximisation of the time of application of the voltage vectors
This paper presents an analysis of effects of dynamic air-gap eccentricity on the performances of a 6/4 Switched Reluctance Machine (SRM) through finite element analysis (FEA) based on a FEMM package associated to MATLAB/SIMULINK package software. Among the various Time-Frequency methods used for detection of defects, the Time-Frequency Representation (TFR)(More)
A novel sensor-less system for induction motors is designed. This novel design is based on an adaptative fuzzy system, which is obtained by mixing openloop estimator response with steady-state estimator. This open-loop estimator is improved by means of using an adaptative fuzzy controlled filter that selects the optimised cut frequency. The results validate(More)
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