Convertisseurs multiniveaux asymétriques alimentés par transformateurs multi-secondaires basse-fréquence
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In recent years, power variations and energy criteria have been the main motivations for developing regenerative drive converters for elevators [1]. A better performing solution for power smoothing can be easily found by using a supercapacitor-based storag ...
In recent years, power variations and energy criteria has been the main motivation for developing regenerative drive converters for elevators [1]. A more performant solution for power-smoothing can be easily found by using a supercapacitor based storage de ...
Three 30 kV/10 mA solid state pulsed modulators have been delivered to the CRPP in Lausanne, by the company JEMA. Each modulator supplies the anode grid of a triode type gyrotron, used for heating purpose at the third harmonic in the TCV Tokamak. The main ...
Nonlinear devices, such as power electronics converters, inject harmonic currents in the AC system and increase overall reactive power demanded by the equivalent load. Also, the number of sensitive loads that require ideal sinusoidal supply voltages for th ...
This paper is focused on a general design principle of a uniform step multilevel converter, with K series-connected full bridges inverters per phase. A new design terminology is proposed and analytical relationships are established. The DC-voltage sources ...
In the technology sector of power electronics and control, the multilevel converter technology is still a rather new research area, but the application possibilities in the field of power drives and energy will demand more solutions with this promising tec ...
The brushless DC motors are normally built with rotor mounted PMs, which create the necessary back EMF voltage to produce a mechanical power. The shape of this back-EMF voltage is very important compared to the phase voltage supply one. Indeed, the electro ...
In recent years, power variations and energy criteria have been the main motivations for developing regenerative drive converters for elevators [1]. A more performant solution for power-smoothing can be easily found by using a supercapacitor based storage ...
Nowadays, multilevel VSIs (Voltage Source Inverter) begin to be widely used in middle and high power installations such as variable speed drives, FACTS (Flexible AC Transmission System) and windformers for example. In these systems, 2 VSIs are put back to ...
Fuel Cells are destined to supply electric energy beginning from primary resources. A static DC-AC converter is necessarily inserted between the fuel cells and the distribution network. This paper describes a new P.W.M. strategy for a current source invert ...
