AC/DC CONVERTER FOR CONTROLLING A SYNCHRONOUS GENERATOR WITH PERMANENT MAGNETS

摘要

An AC/DC converter intended to be connected, on the AC side, to a synchronous generator with permanent magnets (1), and to deliver DC voltage (V), comprising: a rectifier bridge (22, 32) with a plurality of cells (22.1, 32.1) with two arms (E1, E2) having two end terminals (B, C) and one middle terminal (A) to be connected to the generator; a pair (23) of power storage devices (C', C'') in series, mounted at the end terminals (B, C), on the DC side, having a common node (N1); as many bidirectional switch devices (4) as there are cells (22.1, 32.1), each one mounted between a cell (22.1, 32.1) and the common node (N1); means (5) for controlling the vectors of the switch devices, for receiving the speed (q) of the rotor, the current (ia, ib, ic) to be injected into the converter and the direct voltage (V), intended to activate each switch device (4), in such a way that the current (ia, ib, ic) and the voltage (ua, ub, uc) applied to the converter are in phase.