VARIABLE-SPEED DRIVE PROVIDED WITH A SUPERCAPACITOR MODULE

摘要

The invention relates to a variable-speed drive (1), comprising: a DC power supply bus provided with a positive line (10) and a negative line (11); a bus capacitor (Cb) connected between the positive line (10) and the negative line (11) of the DC power supply bus; an inverter module (13) supplied with power by the DC power supply bus and controlled so as to provide a variable voltage to an electrical load (C); a first switching branch (100) connected between the positive line (10) and the negative line (11) of the bus and including at least one first electronic switch (T1); and a first module (M1) comprising a braking resistor, or a second module (M2) comprising a means for storing and regenerating the electrical energy generated during the braking of the electrical load (C), wherein the first module and the second module are removable and interchangeable.