Asynchronous motor frequency inverter

high-performanceclosed-loop

Ac inverter drive used to supply asynchronous motors. The drive can operate in closed loop flux vecfor control mode or according to U/F control with its calculalion power. The drive separately controls the magneti- sing current and the active current of a standard asynchronous motor. The rotor speed and position are calculated to control the motor torque and speed. This operating mode is used, in closed loop, to obtain very high performance levels and is thus suitable for the majority of applicatlons.