| 摘要 |
The invention relates to a method for controlling the active or reactive power output or input of an induction machine (1) in a coordinate system which is fixed for the winding. According to said method, a first controller (46-1) produces a first controller output variable depending on a nominal variable deviation of the effective power, and a second controller (46-2) produces a second controller output variable depending on a nominal variable deviation of the reactive power. The first and the second controller output variables are impinged upon with respective feedback variables which are functions derived from at least one time-dependent system variable of the induction machine. A voltage or a current of the induction machine is determined as the correcting variable, without further control, using at least the first and second controller output variables impinged upon by the feedback variables. The feedback variables are adapted to linearize the controlled system and allow restriction to merely two simple controllers, e.g. two PI controllers. The control method can for example be used in double-fed asynchronous machines. |
