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Marco Chiadò Caponet - IEEE Xplore Author Profile

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This paper presents an experimental comparison among Super Junction (SJ) MOSFETs of the old and new generation and Silicon Carbide (SiC) MOSFET which are used in 1 kW DC to AC converter for photovoltaic applications. For the SJ MOSFET three different power semiconductors are investigated: one belonging to the old generation and two to the new generation. Switching performances and challenges of us...Show More
This paper presents an experimental demonstration of superior Wide Bandgap (WBG) power semiconductors performance within a single phase 1 kW DC to AC converter for photovoltaic (PV) applications. Three different power semiconductors Super Junction (SJ) MOSFET, Silicon Carbide (SiC) MOSFET and Gallium Nitride (GaN) HEMT were selected to built three identical converter prototypes in order to evaluat...Show More
Fuel cells produce electricity directly from hydrogen in the form of DC voltage. The fuel cells generators often produce the DC power at relatively low voltage and the voltage depends on the operation conditions; hence, it is necessary to increase and stabilize the output voltage by means of an electronic power converter. The paper deals with a well-known soft switching H bridge DC/DC converter, w...Show More
EMI filters for equipment, in which power electronic converters are used, often are designed by trial and error. Moreover, the design is carried out taking into account the total noise produced by the equipment. Thanks to the separation of the noise into the differential mode and the common mode components, it is possible to understand which of the two components is dominant and therefore the filt...Show More
A comparison among hard switching (HS), zero voltage switching (ZVS) and zero voltage switching zero current switching (ZVS-ZCS) converters is proposed. For high voltage (400-800V), high power (from 5 to 50 kVA) applications, where IGBTs are predominantly used, the maximum operating switching frequency for hard switching IGBT converters is 20 kHz. To reduce the size of the passive components used ...Show More
Multiphase AC motor drives (with more than three phases) have some potential advantages as widely discussed in the literature. The DC-link capacitor size depends on the current RMS value, in particular, if the drive is supplied by a DC source, the current requested to the capacitor is basically determined by inverter input current AC component. The analytical computation of the capacitor current R...Show More
Ten years after the publication of the EC Directive 89/336 on electromagnetic compatibility, the impact of this directive on design and lay-out of modern electrical and electronic equipment can be observed. Many research and development studies have proposed and evaluated detailed improvements in the area of component design, component selection, circuit lay-out, shielding and active and passive f...Show More
EMI measurements and the design of proper filter to mitigate the EMI noise is very important, since the EU Directive 336/89 has been published. For conduction emission noise, the separation of the common and the differential mode noise is important for determining whether the differential or common mode component is dominant. Therefore, it will be possible determine whether an anticipated change i...Show More
Since the EU Directive 336/89 has been published, the manufacturers of electric and electronic equipment have had to face EMC problems. For this reason, the problem of EMI measurements and the design of a proper filter in order to mitigate EMI noise have become very important. In EMI analysis, the separation of common mode and differential mode noises is a procedure well-known in textbooks. Howeve...Show More
The problem of electromagnetic compatibility has gained increasingly more attention, especially in the field of power electronics. To minimize EMI several solutions have been presented in literature mainly based on EMI filters. In this paper, the authors show experimentally that conducted EMI can be significantly reduced in power converters by minimizing the total stray inductance of each inverter...
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Ten years after the publication of the EC Directive 89/336, research and development related to electromagnetic compatibility have covered many aspects in the design and development of electrical and electronic equipment. Different solutions regarding these problems were presented in recent years, in order to minimize the electromagnetic interference, but new and innovative solutions are still bei...Show More
Equipment supplied by static converters require a careful examination of the harmonic distortion, which affects the power supply system. The conventional frequency domain approach for investigating the harmonic pollution often produces results which may be inaccurate to some extent due to the simplified approximations used. In this paper, a simulation of some selected case of typical converters us...Show More
In this paper, a design method for a simplified speed observer for a speed sensorless field oriented (F.O.) controlled induction motor drive is proposed. The method is based on the stability analysis of the drive operation, on the torque vs. speed plane. A decoupling control is used to generate the voltage commands from the current commands instead of current regulators. The speed is estimated usi...Show More
Electromagnetic compatibility is becoming a "hot issue" since the new EC Directive 89/336 has been published. Furthermore, the new EN61800-3 Product Standard has been recently published too. Many papers have already been published related to emission problems. Until now, little work has been done related to immunity for motor drives apparatus. In this paper, the authors show how the new EN61800-3 ...Show More