A method for controlling an optimum operating point in the case of a synchronous machine, a method for controlling a synchronous machine and synchronous machine

摘要

A method for controlling an optimum operating point in the case of a synchronous machine, a method for controlling a synchronous machine and synchronous machine,wherein, in a first method step according to the invention for the synchronous machine by means of an fem - method or by means of a measuring method is a functional dependence of the voltage u_d, U_q, U_E from the current components i.sub.α_d, I_q, I_E it is determined,according to and from this the respective a function of the flux ψ_d, Ψ_q, Ψ_E from the current components i.sub.α_d, I_q, I_E it is determined,where r₁ and r₂ the ohmic resistances of the corresponding windings of the synchronous machine are,in a second method step according to the invention the synchronous machine is operated in a closed-loop control operation, and in so doing, an operating point according to and then determined is regulated.