ENTRAÎNEMENT À COMMANDE DE CHARGE DYNAMIQUE INTÉGRÉE

摘要

The invention relates to a drive with integrated dynamic load control, comprising: a mains-fed three-phase asynchronous motor having three winding phases connected in star, wherein the phase windings each have at least one field winding having a coil start on the outer-conductor side and a coil end and are connected in a common star point; a load control circuit having a regulating module and at least one first ammeter, at least one first voltmeter and at least one first and one second semiconductor switch; wherein the first ammeter is designed to detect a first phase current in a first winding phase of the motor, wherein the first voltmeter is designed to detect a first phase voltage at the first winding phase, and wherein the regulating module is designed to calculate an active power of the first winding phase and, in particular, a total active power of the motor by means of the first phase current and the first phase voltage; and wherein the first and the second semiconductor switch are arranged in two of the three winding phases between the respective coil end and the star point, and wherein the regulating module is designed to interrupt at least the two of the three winding phases by means of the first and the second semiconductor switch upon detection of a limit value exceedance, in particular wherein the limit value exceedance is a limit value exceedance of the active power, of the total active power or a torque calculated from the total active power, in particular wherein the limit value exceedance is determined with respect to an adjustable limit value.