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    • 4. 发明申请
    • METHOD FOR CONTROLLING AN OPTIMAL OPERATING POINT IN A SYNCHRONOUS MACHINE AND INVERTER-FED SYNCHRONOUS MACHINE
    • 用于控制所述的同步电机甲最佳临界点和A转换器馈同步电机
    • WO2011124346A3
    • 2012-06-14
    • PCT/EP2011001569
    • 2011-03-29
    • SEW EURODRIVE GMBH & COREINHARDT VOLKMARWULF JENS WILHELMLEWANDOWSKI MAREKHAUCK MATTHIASEPSKAMP TORSTENDOPPELBAUER MARTINHARTMANN MATTHIAS
    • REINHARDT VOLKMARWULF JENS WILHELMLEWANDOWSKI MAREKHAUCK MATTHIASEPSKAMP TORSTENDOPPELBAUER MARTINHARTMANN MATTHIAS
    • H02P21/00G01R31/34G06F17/50H02P21/14H02P25/02
    • H02P21/0003G01R31/343
    • The invention relates to a method for controlling an optimal operating point in a synchronous machine and to an inverter-fed synchronous machine, wherein in a first method step according to the invention for the synchronous machine by means of a FEM method or by means of a measurement method a functional dependency of the voltage components Ud, Uq, UE upon the current components ld, lq, lE is determined, and from this according to formula (I) the respective dependency of the flux linkage components ?d, ?q, ?? upon the current components ld, lq, IE is determined, wherein R1 and R2 are the ohmic resistances of the corresponding windings of the synchronous machine. In a second method step according to the invention the synchronous machine is operated in regulated operation and an optimal operating point is controlled, (1) wherein a desired value of the exciting current is ascertained by solving the non-linear optimisation problem, formula (II), (2) wherein the ascertained desired value of the exciting current is used as desired value for an exciting current regulator, (3) wherein an actual value of the exciting current is ascertained by measurement or modelling, (4) wherein desired values of the stator current are ascertained using the ascertained actual value of the exciting current by solving the non-linear optimisation problem, formula (III), (5) wherein the desired values of the stator current are supplied to the stator current regulators.
    • 一种用于驱动最佳工作点为同步电机和逆变器供电的同步电机,方法,其中,在由FEM方法的装置,用于所述同步机的第一本发明的步骤或通过测量方法的装置,所述电压分量UD,UQ的功能依赖性,UE从当前分量id,IQ,IE 是确定的,并根据从中; 式(I),交链磁通分量的各个功能?d,?Q 20 从电流分量id,IQ,IE,其中R1和R2是同步电机的各绕组的被,同步电机在闭环操作而操作在第二方法步骤中的电阻,并由此一个最佳的工作点被控制,(1)确定,其中一个 通过求解非线性优化问题励磁电流目标值; 式(II),是确定的,(2)其中,所确定的励磁电流指令值被用作用于励磁电流调节器(3),其中,励磁电流是通过测量或建模来确定,一个目标值(4)其中,使用所确定的Erregerstromistwertes Statorstromsollwerte通过求解非线性 Qptimierungsaufgabe; 式(III)中,被确定时,(5),其中所述Statorstromsollwerte Statorstromreglern提供。