METHOD FOR CONTROLLING A PILOT SHORT-CIRCUIT MODE OF AN ELECTRICAL MACHINE BY A BATTERY INTEGRATING A MULTI-LEVEL INVERTER

Abstract

The present invention relates to a method for controlling a piloted short-circuit mode of an electrical machine (5) of a polyphase electrical system (1) further comprising a power battery (2), the method comprising supplying the phases of the electrical machine (5) from the battery (2), generating a DC voltage (Vdc) for supplying a voltage bus (4) at the output of a rectifier module (9) from the time superposition of the supply voltages generated at the output of each current line (LT1, LT2, LT3), and further comprising, when a piloted short-circuit request is detected, controlling the piloted short-circuit mode, simultaneously with the control of DC voltage (Vdc) generation, in which each supply voltage corresponds to the sum of the reference voltage required by the piloted short-circuit mode for the respective phase branch and a common-mode voltage. Figure 1.