Meysenc
Luc Meysenc, Saint Egreve FR
Patent application number | Description | Published |
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20080198637 | Multilevel AC/DC converter for traction applications - The present disclosure is concerned with a power supply system for railway traction applications including a multilevel AC/DC converter. The converter comprises a plurality of series-connected single-stage cycloconverters or direct AC frequency converters connected between an AC supply line and a traction transformer. The transformer is operable at a transformer nominal frequency below 3 kHz and above the AC line frequency. On the secondary side of the transformer, more than one parallel-connected secondary converter are provided and connected to a DC link. In case of failure of one of the secondary converters, the multilevel AC/DC converter may continue to operate with reduced power delivered by the remaining operating levels. | 08-21-2008 |
20090141455 | CIRCUIT ARRANGEMENT FOR ELECTRICALLY CONTROLLING POWER AND COOLING ARRANGEMENT - The disclosure relates to a circuit arrangement for electrically controlling power, comprising at least one power control device and at least one heat extraction device. The at least one extraction device is in thermal contact with the at least one power control device. The heat extraction device is arranged such that it can be clamped to a fixed predefined electric potential and electrically insulated by the at least one power control device. | 06-04-2009 |
Luc Meysenc, Le Fontanil FR
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20080204959 | Method for fault handling in a converter circuit for wiring of three voltage levels - The document specifies a method for fault handling in a converter circuit for switching three voltage levels, in which the converter circuit has a converter subsystem provided for each phase (R,S,T), in which a top fault current path (A) or a bottom fault current path (B) in the converter subsystem is detected, the top fault current path (A) running through the first, second, third and sixth power semiconductor switches in the converter subsystem or through the first and fifth power semiconductor switches (S | 08-28-2008 |
Luc Meysenc, Mens FR
Patent application number | Description | Published |
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20130293193 | CONVERSION STAGE, ELECTRIC CONVERTER INCLUDING SUCH A CONVERSION STAGE, DEVICE FOR CONVERTING AN AC CURRENT INTO DC CURRENT INCLUDING SUCH A CONVERTER, TERMINAL FOR RECHARGING AN ELECTRIC BATTERY INCLUDING SUCH A CONVERTER OR CONVERSION DEVICE - The electric conversion stage according to the invention can be connected on one hand to intermediate terminals of a DC voltage electric bus, and on the other hand to output terminals. It comprises P switching branches, P≧2, the switching branches being connected in parallel between the intermediate terminals, each switching branch including first and second controllable electronic switches connected serially and connected to each other by a midpoint, each switch including a semiconductor switching element and a diode connected in anti-parallel to the semiconductor element, and means for controlling the electronic switches according to a control law. | 11-07-2013 |
20140152095 | SYSTEM FOR SUPPLYING DIRECT ELECTRIC POWER FOR AT LEAST TWO LOADS FROM AN ALTERNATING ELECTRIC POWER SOURCE AND METHOD FOR STARTING SUCH A SUPPLY SYSTEM - The invention relates to a system for supplying direct electric power to at least two loads from an alternating electric power source comprises a circulation bus for the alternating power adapted to be connected to the alternating power source and at least one converter for converting alternating power into direct power, connected to the circulation bus. | 06-05-2014 |