摘要:
The invention relates to an electric motor, comprising a stator yoke enclosing a rotor, wherein windings are provided on the inside of the stator yoke beside one another in the circumferential direction, in particular not overlapping in the circumferential direction, wherein permanent magnets are arranged on the rotor, the main flux thereof being provided for to run at least partly through the spatial region of the windings.
摘要:
Electric motor and use of a permanent magnet area which is provided on the rotor of an electric motor, with the permanent magnet area interacting with the field produced by the stator of the electric motor in order to produce torque, with the permanent magnet area extending further axially along at least one axial end area than that area at which the laminated core of the stator extends and/or over which the stator winding of the stator extends, with a sensor device being arranged at the axial end.
摘要:
The invention relates to a method for setting an optimal operating point for a synchronous machine, to a method for controlling a synchronous machine, and to a synchronous machine, wherein a functional dependency of the voltage components U d , U q , U E on the current components l d , l q , l E is determined for the synchronous machine by means of an FEM method or by means of a measuring method in a first method step according to the invention, and the dependency of the flex component Ψ d , Ψ q , Ψ Ε on the current components l d , l q , l E is determined therefrom according to formula (I), wherein R 1 and R 2 are the ohmic resistances of the corresponding windings of the synchronous machine, and the synchronous machine is operated in controlled operation in a second method step according to the invention, wherein an operating point is determined according to formulas (II), (III), and (IV) and is then set.
摘要:
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 U d , U q , U E upon the current components l d , l q , l E is determined, and from this according to formula (I) the respective dependency of the flux linkage components Ψ d , Ψ q , Ψ Ε upon the current components l d , l q , I E is determined, wherein R 1 and R 2 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.
摘要:
The invention relates to an electric motor and a method for the production of an electric motor, comprising a rotor comprising at least one ring made of a permanent magnetic material, and a stator, particularly a stator rack, wherein alternating magnetic poles are pronounced in the circumferential direction, wherein the succession of the magnetic poles provided in the circumferential direction has an offset in a first axial region as opposed to the respective succession in a second axial region.