Abstract: A magnet assembly is provided including i) a focused magnetic flux portion having a first angular distribution of magnetization directions resulting in a focused magnetization, and ii) a parallel magnetic flux portion having a second angular distribution of magnetization directions resulting in a parallel magnetization. A rotor arrangement is also provided with such a magnet assembly, an electromechanical transducer with such a rotor arrangement, and a wind turbine with such an electromechanical transducer.

Abstract: A method a magnet system for a rotor of a permanent magnet electrical machine includes: a first module including a first support member; a second module includes a second support member; wherein the first module includes a first permanent magnet supported by the first support member and/or the second module includes a second permanent magnet supported by the second support member, wherein the first support member and the second support member have respective contact portions which are at least partly structurally complementary to each other allowing to arrange the first module and the second module adjacent to each other in the axial direction, while the contact portions contact each other and causing traverse shift in a direction travers to the axial direction, when pushed towards each other in the axial direction.

Abstract: A permanent magnet module for a permanent magnet machine is provided, the permanent magnet module including a baseplate, at least a permanent magnet attached to the baseplate and a cover for at least partially covering the permanent magnet. The cover includes a stainless steel having a high magnetic permeability.

Abstract: A method of manufacturing a permanent magnet module for a permanent magnet machine includes the steps of: providing at least a permanent magnet, manufacturing a cover for covering the permanent magnet, the cover including a stainless steel, wherein the cover includes at least a top side and two lateral sides, the magnetic permeability of the top side being higher than the magnetic permeability of the lateral sides, the lateral sides being respectively attached to a first and a second edge of the top side, the lateral sides being angled with respect to the top side, attaching the cover to the permanent magnet.

Abstract: A permanent magnet for a permanent magnet machine, a permanent magnet machine, a method for manufacturing a permanent magnet for a permanent magnet machine, and a method for manufacturing a permanent magnet machine is provided. The permanent magnet includes a base body, and at least one first fixing protrusion for fixing the base body to a rotor of the permanent magnet machine, wherein the first fixing protrusion extends from a first side of the base body, and wherein the base body and the at least one first fixing protrusion are formed integrally as one-piece.

Abstract: Provided is a covering element for covering a slot between two adjacent teeth of an electromagnetic machine, a stator for an electromagnetic machine and a method of forming a covering element. The covering element comprises a first sub-element and a second sub-element. The first sub-element and the second sub-element are arranged adjacent to each other in a first direction. Further, the second sub-element is made of a different material than the first sub-element.

Abstract: Provided is an electrical AC machine including: a stator having a plurality of teeth alternating with a plurality of slots in a circumferential direction, a concentrated winding layout comprising a plurality of coils wound on the plurality of teeth and belonging to at least six phases, each slot of the plurality of slots housing at least two coils of the plurality of coils, each phase of the at least six phases comprising a first coil and a second coil wound in opposite direction with respect to the respective first coil of the same phase, a plurality of parallel interconnections connecting the first and second coil of each phase.

Abstract: Provided is a permanent magnet for a permanent magnet machine, a permanent magnet machine, and a method of manufacturing a permanent magnet for a permanent magnet machine. The permanent magnet includes a base body having a first side and a second side which is an opposite side with respect to the first side, wherein at least one first slit is formed in the base body such that the at least one first slit extends from the first side in the direction of the second side.

Abstract: Provided is a covering element for covering a slot between two adjacent teeth of an electromagnetic machine, a stator for an electromagnetic machine and a method of forming a covering element. The covering element comprises a first sub-element and a second sub-element. The first sub-element and the second sub-element are arranged adjacent to each other in a first direction. Further, the second sub-element is made of a different material than the first sub-element.

Abstract: Provided is a covering element for covering a slot between two adjacent teeth of an electromagnetic machine, a stator for an electromagnetic machine and a method of forming a covering element. The covering element comprises a first sub-element and a second sub-element. The first sub-element and the second sub-element are arranged adjacent to each other in a first direction. Further, the second sub-element is made of a different material than the first sub-element.

Abstract: Provided is a generator, in particular for a wind turbine, including: a stator with a plurality of teeth and slots for coil windings; and a rotor which is rotatable arranged around or inside the stator and comprises at least one permanent magnet. At least one tooth comprises a protrusion having at least one inclined structure. An associated method of manufacturing such a stator for the generator is also provided.

Abstract: A permanent magnet for a permanent magnet machine, a permanent magnet machine, a method for manufacturing a permanent magnet for a permanent magnet machine, and a method for manufacturing a permanent magnet machine is provided. The permanent magnet includes a base body, and at least one first fixing protrusion for fixing the base body to a rotor of the permanent magnet machine, wherein the first fixing protrusion extends from a first side of the base body, and wherein the base body and the at least one first fixing protrusion are formed integrally as one-piece.

Abstract: Provided is a permanent magnet for a permanent magnet machine, a permanent magnet machine, and a method of manufacturing a permanent magnet for a permanent magnet machine. The permanent magnet includes a base body having a first side and a second side which is an opposite side with respect to the first side, wherein at least one first slit is formed in the base body such that the at least one first slit extends from the first side in the direction of the second side.

Abstract: Provided is a covering element for covering a slot between two adjacent teeth of an electromagnetic machine, a stator for an electromagnetic machine and a method of forming a covering element. The covering element comprises a first sub-element and a second sub-element. The first sub-element and the second sub-element are arranged adjacent to each other in a first direction. Further, the second sub-element is made of a different material than the first sub-element.

Abstract: A wind turbine is provided. The wind turbine includes at least one generator adapted to generate electric power and a plurality of electrical converter units adapted to convert electric power generated by the generator and electrically connectable or connected to the generator and to a utility grid. The generator includes a stator being segmented in stator segments. Each stator segment includes a plurality of stator windings. The stator windings of the respective stator segments are divided into at least a first and a second group of stator windings with each group including at least one stator winding. Several or all first groups of stator windings are electrically connected to a first electrical converter unit and several or all second groups of stator windings are electrically connected to a second electrical converter unit.

Abstract: A wind turbine is provided. The wind turbine includes at least one generator adapted to generate electric power and a plurality of electrical converter units adapted to convert electric power generated by the generator and electrically connectable or connected to the generator and to a utility grid. The generator includes a stator being segmented in stator segments. Each stator segment includes a plurality of stator windings. The stator windings of the respective stator segments are divided into at least a first and a second group of stator windings with each group including at least one stator winding. Several or all first groups of stator windings are electrically connected to a first electrical converter unit and several or all second groups of stator windings are electrically connected to a second electrical converter unit.