METHOD FOR CONTROLLING ASYNCHRONOUS ENGINE Russian patent published in 2008 - IPC H02P8/18 H02P25/08 H02P27/06 

FIELD: electric engineering, possible use for controlling asynchronous engines, including traction engines.

SUBSTANCE: in the method for controlling asynchronous engine, voltage frequency of asynchronous engine is determined as a total of rotor rotation frequency and its optimal sliding. Optimal sliding and value of given voltage value U are determined depending on signal M_D from output of voltage regulator, corresponding to given electromagnetic momentum of asynchronous engine, nominal electronic momentum M_N of asynchronous engine, nominal synchronous frequency f_1N of rotation of asynchronous engine, nominal frequency f_2N of rotation of asynchronous engine and nominal value of voltage U_N of asynchronous engine from certain formulas.

EFFECT: ensured optimal mode across whole spectrum of rotor rotation frequency with practically constant power coefficient, overload coefficient and absolute sliding.

3 dwg