Patent ID: 9647600
Date: 2017-05-09
CPC Classifications: H02M,H02P

Claim:
1. A device for controlling a polyphase inverter for supplying power from a direct current source to a double three-phase rotating electrical machine, said device comprising: means for generating switching signals controlling switching elements to obtain a reduction of losses in said switching elements and a reduction in an rms current in a decoupling capacitor of said direct current source, said double three-phase rotating electrical machine comprising three first phase windings and three second phase windings forming a first three-phase system and a second three-phase system with separate neutral points offset angularly by a predetermined offset angle, and said first and second phase windings being connected to three first and three second power arms, respectively, formed by said switching elements of said polyphase inverter; means for storing a set of at least two control strategies determining said switching signals; means for acquiring a rotation speed and a power factor of said machine; and means for selecting a current strategy from said set of control strategies as a function of said rotation speed and said power factor.