Method and circuit for controlling an asynchronous motor fed by a static frequency converter.

摘要

P method of controlling the speed and of the torque of an asynchronous motor in which an electrical magnitude corresponding to the frequency f and a sliding electrical magnitude corresponding to a frequency f real proportional to the speed of the rotor to form the control magnitude of the frequency f of the current issued by the converter. / p & & p & the engine is operating at constant flow in the range of the maximum torque constant and, in the range of the maximum power is constant, the flux flowing in the engine is n4 as a function of the voltage across the terminals of the capacitors of the switching of the inverter autopilot and the load momentary which is imposed to the motor. / p & & p & application to the supply of the asynchronous motors. / p