Patent ID: 7202572
Filing Date: 2007-04-10
Classification: H02M,H02P

Abstract:
1. An electric generator/motor system, in particular for application in mobile units, motor vehicles, ships and the like as an on-board power system generator and starter, having: a rotational field machine with three generator phase windings and a pulse-controlled inverter which has a predetermined maximum power and is connected to the three generator phase windings of the rotational field machine, wherein the pulse-controlled inverter is divided into a first and a second pulse-controlled inverter which are identical to one another and which have half the maximum power, the first and second pulse-controlled inverters each have three branch pairs, each of the three branch pairs is connected to an associated winding of the three generator phase windings and is composed of at least two symmetrically arranged electronic branch switches which are located in series with one another in the same direction, and each branch pair is connected to a d.c. voltage source via the branch switches; wherein the generator phase windings are each connected between respective center points of the associated branch pairs, of both pulse-controlled inverters; wherein in each case a filter capacitor is connected in parallel with the branch pairs of the first and second pulse-controlled inverters; and wherein an electronic switch is connected in parallel with the generator phase windings between the first pulse-controlled inverter and the second pulse-controlled inverter and via which a positive busbar of the first pulse-controlled inverter can be connected and disconnected from a positive busbar of the second pulse-controlled inverter and from a positive pole of the d.c. voltage source.