Combined control of an asynchronous machine with squirrel - cage rotor

An asynchronous machine with squirrel cage rotor operation under combine control is investigated. That control ensure the formation of the electromagnetic torque, while the regulation of the energy properties of rotor speed function. Pre-magnetization of the magnetic system is not performed, that provide high energy efficiency of the electric drive operation and a performance of a control system in a linear dependence of an electromagnetic torque to a task. Control systems with stabilization of the rotor flux linkage have the same performance. Squirrel caged asynchronous machine model has the non-linearity of the magnetization characteristic.