Schneider Electric Industries Sas

Luc Meysenc

Charles Gailla

Frederic Waterlot

Daniel Barstz

Frédéric Waterlot

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. The system further comprises at least two connection interfaces, each connection interface being connected to a corresponding converter and being adapted to be connected to at least one electric load to supply direct electric power for the or each corresponding load; and means for controlling the connection interfaces, the control means being capable of time-shifting the start-up moment for the supply of direct power from one interface to the other.

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 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&#x2267;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. It also comprises a capacitor connected between the two output terminals and, for each switching branch, an electromagnetic coil connected between a terminal of the capacitor and the midpoint of the corresponding switching branch, and the control law is selected from among a first control law and a second control law, the first control law being such that the semiconductor element of each first switch is always off, and the second control law being such that the semiconductor element of each second switch is always off.

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

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Mens, France

Luc Meysenc