Digital twin system

Abstract

The invention relates to a digital twin system (1000), comprising: a physical part (204) with a physical device (10) for impregnating a body (2, 3, 4), having a drive (11) with a driveshaft (12) for moving the body (2, 3, 4) about a rotational axis (A) and a trickling unit (51) for applying impregnation material (6) to the body (2, 3, 4), and a physical body (2, 3, 4) to be impregnated, having at least one winding (41, 41B); a virtual part (203) with a digital image of the body (2, 3, 4); a detection element (200) for detecting data of the impregnation material (6) within the body and / or on the body, in particular the course and / or fill level of the impregnation material; and a data transmission element (201) for transmitting data between the physical part (204) and the virtual part (203); wherein the data can be transmitted to the virtual part (203) by the data transmission element (201), and the digital image of the body (40) can be modified on the basis of the data.

Description

[0001] Description

[0002] Digital twin system

[0003] The invention concerns a digital twin system.

[0004] Dynamoelectric machines, such as electric motors, are manufactured, among other things, using wound round enameled wires, which are then drawn into the stator's laminated core after a winding process. This is often followed by forming the winding head, taping the winding head, and inserting the phase insulation. The wire enamel preferably corresponds to the main insulation in low-voltage motors (up to 1 kV).

[0005] For further mechanical strengthening and passivation against external influences, impregnation is typically followed. This is a complex process, both in terms of manufacturing technology and process requirements, in which liquid reactive resin (e.g., epoxy or polyester) is introduced into the stator's laminated core (primarily by dipping, but also by dip rolling or trickling). The impregnation process, in particular, which often involves dip impregnation followed by hot-air oven curing, represents a significant cost factor in production.

[0006] The reactive resin is then often gelled and finally cured, which is usually done by hot air, current flow to the winding, infrared or ultraviolet radiation or induction and is therefore time and energy intensive.

[0007] Furthermore, this process can lead to defects, e.g. an insufficient amount of resin in the area of ​​unfavorable wire crossings of the winding.

[0008] DE 4334959 A1 discloses a method and apparatus for coating an electromagnetic coil, in particular a stator coil for an electric motor, with an insulating, catalyzed resin. The catalyzed resin is a two-component material comprising an epoxy resin and a catalyst. The catalyzed resin is a free-flowing liquid at a first temperature and begins to harden rapidly at a second elevated temperature. The stator coils are first heated by passing current through the stator coils to increase the temperature of the stator coils to the first temperature. The free-flowing, liquid, catalyzed resin is distributed over the stator coils via nozzles, the stator coils and the nozzles moving relative to one another.After the liquid, catalyzed resin has been distributed in a predetermined amount at specific locations and for a predetermined period of time, the resin is allowed to penetrate the stator coils. The temperature of the stator coils is then raised to the second temperature, at which the curing of the catalyzed resin proceeds rapidly. During the curing process, heat is released, and the current supply to the stator coils is interrupted at a predetermined temperature.

[0009] The object of the invention is to improve the impregnation.

[0010] The object is achieved by claim 1, i.e. a digital twin system, comprising: a physical part with a physical device for impregnating a body, comprising a drive with a drive shaft for moving the body about a rotation axis and a dripping unit for dripping impregnating material onto the body, and with a physical body to be impregnated, comprising at least one winding, a virtual part with a digital image of the body, a recording element for recording data of the impregnating material within the body and / or on the body, in particular a profile and / or a fill level of the impregnating material, a data transmission element for data transmission between the physical part and the virtual part, wherein the data can be transmitted to the virtual part by the data transmission element, wherein the digital image of the body can be changed depending on the data.

[0011] By transmitting the data to the virtual part, the impregnation process can be optimized for different variants of stators (especially different axial lengths, different slot cross-sections, different shaft heights, and others), rotors, or even other bodies, e.g., using artificial intelligence. This saves time and resources and ensures high quality.

[0012] The sprinkling advantageously takes place in a stator with a winding system which has at least bearing shields or adapter bearing shields which encompass at least the winding head.

[0013] An embodiment is advantageous according to which the body moves, in particular rotates, around the axis of rotation before and / or during and / or after the sprinkling, wherein the detection element detects data of the impregnating material within the body and / or on the body, in particular a course and / or a fill level of the impregnating material, wherein the data transmission element transmits the data to the virtual part, wherein the digital image of the body changes depending on the data.

[0014] Due to rotation and capillary action, the impregnating material can be easily drawn into, for example, the slots of a stator, ensuring it is evenly distributed. The flow is advantageously monitored. The fill level can also be monitored. This allows for adjustments to be made in places where, for example, there is too little impregnating material. The impregnating material preferably contains resin.

[0015] Liquid reactive resin (e.g. epoxy or polyester) is particularly suitable.

[0016] An embodiment is advantageous according to which the physical part has a connection unit, wherein the connection unit is designed to connect the winding to an electrical energy supply, wherein the winding can be heated by a current flow of the electrical energy supply.

[0017] Advantageously, current can flow through the winding before and / or during and / or after the sprinkling in order to heat the winding.

[0018] During the drip-coating process, for example, the coil is continuously energized. The current flow can be constant. The current flow can increase and then decrease again, and, particularly toward the end of the impregnation process, approach zero or become zero to prevent leakage.

[0019] An embodiment is advantageous according to which the body rotates by a first angle in a first direction of rotation, preferably in a positive direction of rotation, wherein the body rotates by the negative first angle or a second angle in a second direction of rotation, preferably in a negative direction of rotation.

[0020] Preferably, the body undergoes a full pendulum rotation. This can also be referred to as a reversing movement (similar to reversing operation).

[0021] For example, the body rotates 180° in the first direction of rotation. Other angles are also conceivable. This depends in particular on the length of the connecting cables for connecting the winding to the electrical power supply. Other movement patterns are also possible. It is also advantageous, for example, if the first angle a1 = n-360°, where n is a natural number.

[0022] This way the entire body can be treated.

[0023] Also advantageous is an embodiment according to which the second angle a2 lies between -(n-360° + 1°) and -(n-360° + 10°), preferably -(n-360° + 5°), where n is a natural number.

[0024] In this way, a consistent progression can be achieved across the entire body.

[0025] This can also be achieved with the advantageous procedure according to which the body is moved alternately in the first direction of rotation by the first angle a1 and in the second direction of rotation by the second angle a2, wherein the second angle is at least a2 = - (a1 + 1°) and at most a2 = - (a1 + 10°), preferably a2 = - (a1 + 5°).

[0026] The movement patterns can also include modulated and superimposed movement patterns (e.g. inclined, swaying, tumbling, screw-shaped). An embodiment is advantageous according to which the body rotates in the first direction of rotation at a first rotational speed, wherein the body rotates in the second direction of rotation at a second rotational speed, wherein the first rotational speed is greater than the second rotational speed.

[0027] The rotation and also the different speeds during the pendulum rotation allow the impregnation material to be distributed particularly well.

[0028] Oscillating or modulating body movements are beneficial for improving the distribution of the waterproofing material. Screw-like movement patterns can also be performed.

[0029] In addition, further movement can also be superimposed axially.

[0030] By monitoring the flow of the impregnating resin during the impregnation process, preferably continuously and preferably with precise positioning (e.g. axially and in the circumferential direction), the movement pattern and / or the current supply can be changed or optimized during the impregnation.

[0031] The detection element for detecting data of the impregnation material within the body and / or on the body, in particular a course and / or a fill level of the impregnation material is, for example, an ultrasound probe.

[0032] It is advantageous to continuously monitor the flow of the impregnating resin with precise position (axially and / or in the circumferential direction), in particular by means of at least one ultrasonic probe.

[0033] Multiple detection elements can also be used.

[0034] An embodiment is advantageous according to which, upon detection of an impregnation deficiency, a dosage amount of the impregnation material and / or a dosage location and / or a current flow in the winding can be changed to change a winding temperature.

[0035] A defect is, for example, an insufficient amount of resin in the area of ​​unfavourable wire crossings of the winding.

[0036] This means that a quantity and / or a predetermined temperature of the impregnation material used is increased or decreased, for example. This can then be changed immediately during the impregnation of the body or later. Furthermore, knowledge of a lack of impregnation can later be used for the impregnation of other bodies, for example, using artificial intelligence. A design in which the body can be tilted vertically relative to the horizontal is advantageous.

[0037] In the case of a tilted stator to be impregnated, a nozzle dispensing the impregnating material can be applied to a winding head. The impregnating material, which is advantageously at least substantially liquid, then flows to the opposite side of the body, subsequently fills the slots in which the winding is located, and finally, the winding head on this side is impregnated.

[0038] It is also possible to use several nozzles, which are advantageously distributed over the circumference.

[0039] The object is further achieved by a method for the interaction of a digital twin system, comprising: a physical part with a physical device for impregnating a body, comprising a drive with a drive shaft for moving the body about a rotation axis and a dripping unit for dripping the body with impregnating material, and with a physical body to be impregnated, comprising at least one winding, a virtual part with a digital image of the body, a detection element for detecting data of the impregnating material within the body and / or on the body, in particular a course and / or a fill level of the impregnating material, a data transmission element for data transmission between the physical part and the virtual part, wherein the data is transmitted to the virtual part by the data transmission element,whereby the digital image of the body is changed depending on the data.,

[0040] An embodiment is advantageous according to which the body is rotated about the axis of rotation before and / or during and / or after the sprinkling, wherein data of the impregnating material within the body and / or on the body, in particular a course and / or a fill level of the impregnating material, are recorded by the recording element, wherein the data are transmitted to the virtual part by the data transmission element, wherein the digital image of the body is changed depending on the data.

[0041] The process, as well as the twin system described above, is suitable for various bodies. It is suitable for stators and rotors in various voltage ranges, with different shaft heights, axial lengths, slot cross-sections, copper fill factors, wire cross-sections, etc., but also for transformers.

[0042] An embodiment is advantageous according to which, upon detection of an impregnation deficiency, a dosage amount of the impregnating material and / or a dosage location and / or a current flow in the winding is changed to change a winding temperature, in particular in a respective slot.

[0043] The problem is further solved by a method for generating a software object that functions as a digital image of a physical body to be impregnated, having at least one winding, wherein the digital image belongs to a virtual part of a digital twin system.

[0044] The digital twin system has already been explained.

[0045] An embodiment in which the software object is changed cyclically is advantageous.

[0046] For example, the detection element records data about the impregnation material inside the body and / or on the body, in particular a profile and / or fill level of the impregnation material. This can occur continuously or cyclically. The data transmission element transmits the data, whereupon the digital image of the body and thus the software object is changed depending on the data. The software object can, for example, be changed once per second. However, the cycle can also be shorter or longer. A cycle of min. 1 ms and max. 100 ms is particularly suitable.

[0047] It is advantageous to transmit data to the virtual part during the sprinkling process. This can be done cyclically, for example.

[0048] In this way, the digital image of the body becomes increasingly accurate, including in terms of length, diameter, winding system, temperature class of the future motor, etc. This provides more knowledge.

[0049] This knowledge can be used for subsequent bodies to be processed, especially stator types, as well as during the process itself.

[0050] However, it is particularly advantageous if intervention can be made during an ongoing drip-coating or casting process of a body, for example a stator that is currently being machined, in order to optimize certain parameters in the ongoing process.

[0051] To give an example, this means: Using the virtual part of the digital twin system, it is determined that the temperature of the administered impregnation material is outside a specified temperature window. A reaction can be initiated and interventions can be made to prevent this effect or deficiency in the body, for example, by correcting the temperature by reheating or increasing the exposure time.

[0052] Consequently, feedback from the virtual part of the digital twin system into the ongoing process is advantageous, enabling quality control and quality improvement of the body. An advantageous embodiment is thus one in which the data can be transmitted to the virtual part via the data transmission element, whereby the digital image of the body can be changed depending on the data, and whereby a movement of the body and / or a sprinkling by the device can be modified based on the digital image.

[0053] Another advantageous embodiment is one in which the flow of current for heating purposes is increased or decreased based on the digital image.

[0054] A further advantage is an embodiment whereby a dosing quantity and / or a dosing location can be changed on the basis of the digital image.

[0055] The invention is described and explained in more detail below with reference to the exemplary embodiments shown in the figures. They show:

[0056] FIG 1 shows an embodiment of the digital twin system,

[0057] FIG 2 and 3 a body with winding,

[0058] FIG 4 a dynamoelectric rotary machine,

[0059] FIG 5 shows an example of a course,

[0060] FIGS 6 and 7 a rotation,

[0061] FIG 8 a possible movement pattern,

[0062] FIG 9 a possible temperature curve,

[0063] FIG 10 a stator .

[0064] FIG 1 shows an embodiment of the digital twin system. The figure shows a virtual part 203 and a physical part 204.

[0065] The virtual part 203 can also be referred to as a digital twin and is advantageously a virtual model that reflects a physical object, in this case the body. Various sensors are advantageously arranged that obtain data from important functional areas. These sensors advantageously provide data about various aspects of the body.

[0066] This data is then preferably forwarded to a processing system and transferred to the digital image. This can be done cyclically.

[0067] Once the virtual model has been fed with this data, it can be used, for example, to carry out simulations and generate optimization options.

[0068] These can then be used for the original physical object, especially the physical body.

[0069] A detection element 200, e.g., an ultrasound probe, is also shown. Movement of the detection element 200 is represented by O1 and O2.

[0070] The figure shows a data transmission element 201 for data transmission between the physical part 204 and the virtual part 203. The virtual part 203 has a digital image 4D of the body 4. The winding 41 also has a digital image 41D in the figure.

[0071] The detection element 200 is designed to detect data of the impregnating material 6 within the body 4 and / or on the body, in particular a profile and / or fill level of the impregnating material. The data can be transmitted to the virtual part 203 by the data transmission element 201, whereby the digital image of the body 4D can be changed depending on the data.

[0072] The figure also shows a controller 202. The controller 202 can receive data from the data transmission element 201 and thus, for example, instruct the dripping unit 51 to dispense more impregnation material or to dispense impregnation material at a different location.

[0073] The figure also shows a software object 400. The software object 400 serves as a digital 4D image of the physical body to be impregnated.

[0074] The figure shows an impregnation device 10 .

[0075] The impregnation device 10 for impregnating a body carrying at least one winding 41 comprises: a drive 11 with a drive shaft 12, wherein the drive 11 is designed to move the body 4 about the rotation axis A. The drive shaft 12 has at least one fastening element 13 for releasably connecting the body 4 to the drive shaft 12.

[0076] The impregnation device 10 shown in the figure also has the dripping unit 51, wherein the dripping unit 51 is designed to drip the impregnation material 6 onto the body 4.

[0077] In the figure, the drip unit 51 comprises the dosing nozzle 5 and a reservoir 7 in which the impregnating material 6 is stored. It can also be mixed and / or preheated there.

[0078] The trickling unit 51 can e.g. be moved along an axis B.

[0079] In addition, the impregnation device 10 shown has a connection unit 24, wherein the connection unit 24 is designed to connect the winding 41 to an electrical power supply. For this purpose, the power supply unit 25 is shown in the figure.

[0080] In the figure, winding 41 is connected to the power supply unit via the stranded conductors LU, LV, LW. In the figure, this is achieved by a terminal plate 23.

[0081] In this way, a current flow through the winding is enabled.

[0082] The stranded conductors are advantageously flexible.

[0083] The stranded conductors are advantageously long enough to connect the winding 41 to the power supply unit 25, even after, for example, three full rotations of the body, and not to break or become detached. They can wrap around the drive shaft 12 during rotation and rest against it.

[0084] Depending on the application, the stranded conductors are long enough to allow between one and ten full turns.

[0085] If the body 4 is moved, for example, in the opposite direction, the stranded conductors LU, LV, LW wound on the drive shaft 12 are unwound again.

[0086] It is also possible to tap current from the power supply unit for the winding using sliding contacts. However, the embodiment shown in the figure is preferred.

[0087] The figure also shows a sensor 8 .

[0088] The figure shows an arm 20 and an arm 21 which are connected by means of a joint 22. This is an exemplary embodiment which enables the drive 11 or the body 4 to be tilted vertically with respect to the horizontal. Other shapes are also possible. For example, a stator 2 or rotor 3 (see FIG. 4) is clamped onto the drive shaft 12 shown and fastened by means of the fastening element 13. Other receiving devices are also possible. A receiving device which is designed to rotate the body 4 about its longitudinal axis is advantageous.

[0089] The impregnation material 6 is preferably liquid. In the case of a stator to be impregnated, the impregnation material 6 is, for example, dripped onto the winding heads and can be distributed throughout the winding head without dripping and homogeneously due to the rotational movement. Due to the capillary forces that occur, the impregnation material can be advantageously drawn into existing grooves.

[0090] Since the stator 2 is heated by the current supply, the flowability of the impregnating material 6, preferably the resin, is improved. Furthermore, gelling and curing of the impregnating material 6 are particularly well achieved.

[0091] The movement pattern and / or the current supply can be controlled by the controller 202. Artificial intelligence can also be used to specify in advance how the impregnation should be carried out. During the impregnation process, adjustments are also possible.

[0092] The feed lines or electrical supply lines, in the figure as stranded conductors LU, LV and LW, are advantageously arranged axially.

[0093] This allows the movement patterns to be broader in their circumferential direction and larger angles of rotation to be achieved, since only a twisting of the supply line occurs and the risk of shearing of the supply lines is lower.

[0094] Impregnating material, in particular resin or a material containing resin, can be supplied through the nozzle 5. Alternatively, the resin can also be supplied via an axially arranged supply line, which, for example, delivers a premixed 2-component resin to at least one winding head.

[0095] Because the electrical feed line is advantageously arranged on the winding system, the viscosity of the impregnation material can be influenced and changed by the temperature of the winding system that is generated and regulated in this way.

[0096] By monitoring the flow of the impregnating material, particularly using one or more ultrasonic probes, e.g., in the grooves, the impregnation can be intervened and improved. To optimize the flow of the impregnating material, for example, faster reversing, a different movement pattern, and / or temperature control via current flow in winding 41 can be achieved.

[0097] The controller 202 can advantageously control both the drive 11 and the drip unit 51. Thus, movement patterns and / or temperature settings of the winding specified by artificial intelligence can be optimized via adjustable current intensity, improving the impregnation process in terms of resources, particularly with regard to the optimized resin quantity for the respective shaft height, stator length, winding system, number and volume of the slots, and copper fill factor. Optimizing the timing and avoiding unnecessary rework, such as free-turning the stator bore and cooling, is also an advantage.

[0098] This makes it possible to create a digital twin of the impregnation process that is increasingly adapted to reality for a wide variety of engine variants.

[0099] FIG. 2 shows a body 4 carrying a winding 41. The body 4 is, for example, the rotor 3 or the stator 2 shown in FIG. 1. However, other bodies carrying a winding 41 can also be impregnated using the method.

[0100] The body 4 is impregnated in the figure by dripping impregnating material 6, in particular resin or a resin-containing mixture, onto it by means of a dosing nozzle 5.

[0101] The body 4 is moved around a rotation axis A before and / or during and / or after the sprinkling.

[0102] Current flows through the winding 41 before and / or during and / or after the sprinkling.

[0103] This is achieved in the figure by connecting stranded conductors LU, LV, LW. These are advantageously connected to a power supply unit (see reference numeral 25 in FIG. 4).

[0104] The flow of current and the resulting heat loss warm the body.

[0105] Reference symbol RI indicates that the body 4 is rotated by a first angle in a first direction of rotation, preferably in a positive direction. Reference symbol R2 indicates that the body is rotated by the negative first angle. This is illustrated in FIG. 6.

[0106] It is also possible for the body to be rotated by a second angle in a second direction, preferably in a negative direction. This is illustrated in FIG. 7.

[0107] During sprinkling, it is advantageous if the body is moved alternately in the first direction of rotation by the first angle and in the second direction of rotation by the second angle, wherein the second angle is at least a2 = - (al + 1°) and at most a2 = - (al + 10°), preferably a2 = - (al + 5°). Figure 3 shows the body 4 tilted vertically relative to the horizontal. A tilt angle ß of between 5° and 60° relative to the horizontal is advantageous.

[0108] A tilt angle ß that lies between 10° and 35° with respect to the horizontal is particularly good.

[0109] With one-sided filling from a resin reservoir, a stator, for example, can be easily filled. The impregnating material 6, in particular resin, then flows essentially axially through the stator due to the inclination and a suitable rotational movement along the slots, for example via capillaries of the winding in the slots, until it reaches and fills the winding head located on the other side of the stator.

[0110] Due to the capillary effect, the impregnating material flows preferentially through the winding until a certain saturation point is reached. The invention makes it easy to precisely dose the correct amount of impregnating material for each stator 2.

[0111] FIG 4 shows a dynamoelectric rotary machine 1 with a stator 2, a rotor 3 and a shaft 31.

[0112] The rotor and / or stator were impregnated using the described method.

[0113] FIG 5 shows the procedure.

[0114] In a process step S1, current flows through body 4 (see FIG. 1). This causes body 4 to heat up.

[0115] It is possible to wait a defined period of time before proceeding with process step S2. Alternatively, immediately afterward in process step S2, impregnating material 6 is discharged via the dosing nozzle 5 to sprinkle the body 4. In a process step S3, the body 4 is rotated in the first direction of rotation RI and then in the second direction of rotation R2. This advantageously involves a pendulum rotation.

[0116] In a method step S4, the detection element 200 detects data of the impregnation material 6 within the body and / or on the body, in particular a course and / or a fill level of the impregnation material.

[0117] In a method step S5, data is transmitted by the data transmission element 201 to the virtual part 203.

[0118] The data preferably includes information on the fill level and flow of the impregnation material. Other information may also be included.

[0119] In a process step S 6, the digital image of the body is changed depending on the data.

[0120] Not shown are possible further steps, such as changing the dosing quantity or dosing location. For this purpose, the dosing nozzle 5 can be moved circumferentially and / or axially while it is discharging impregnating material. However, the discharge of the impregnating material can also be stopped if the dosing nozzle is to be moved.

[0121] A combination of heating the winding (which advantageously comprises copper) through the described current supply, the application of the impregnating material by dripping, and the pendulum motion of the body to be impregnated prevents the impregnating material from dripping. A homogeneous distribution of the impregnating material, for example, in the winding head or, for example, in the slots of the rotor or stator, can thus be easily achieved.

[0122] During impregnation, depending on the type and size of the body, the reversal speed, the position of the dosing nozzles, the temporary reduction of the dosing quantity before and during the reversal, and the temporal variance of successive reversal processes can be varied.

[0123] For example, the dosage can be maximized during a full rotation and then minimized during the reversal process to prevent dripping.

[0124] The reversal process can take place, for example, after every 360° (or whole multiples thereof) or after variable rotation angles (e.g. 1. 360°, 2. -365°, 3. +370°, ...) in order to ensure the most homogeneous distribution possible.

[0125] The connecting lines or feed lines can also be designed to be so flexible and long that few or no reversals are necessary during the actual dosing process. The length and type of the connecting lines should be selected to minimize Joule losses in the connecting lines.

[0126] Particularly advantageous in this case are the described flexible stranded conductors with a suitable cross-section, which is, for example, significantly larger than the cross-section of the winding. However, other designs are also possible.

[0127] FIG 8 shows possible movement patterns of the body over time t.

[0128] The body can rotate uniformly, as shown in the solid line (V) for a 360° rotation. However, the body can also rotate during a rotation as shown by the dashed line.

[0129] FIG 9 shows a possible temperature curve of the winding.

[0130] Heating is achieved advantageously by applying current to the winding.

[0131] FIG. 10 shows details of the stator 2. The stator has winding heads 41B. A bearing plate 9 is also shown. A nozzle 5B can also be moved within the stator 2 and impregnate within the stator bore or the recess within the stator. A detection element 200B can also be positioned there; one possible direction of movement is shown with GIB and C2B.

[0132] A 2D digital image of the stator is shown in the virtual part 203 .

[0133] The virtual part 203 can be present on a computing unit at the location of the impregnation device. The virtual part 203 can also be located in a cloud or at another location.

Claims

Patent claims 1. Digital twin system (1000), comprising: a physical part (204) with a physical device (10) for impregnating a body (2, 3, 4), comprising a drive (11) with a drive shaft (12) for moving the body (2, 3, 4) about a rotation axis (A) and a dripping unit (51) for dripping the body (2, 3, 4) with impregnating material (6), and comprising a physical body (2, 3, 4) to be impregnated, comprising at least one winding (41, 41B), a virtual part (203) with a digital image of the body (2, 3, 4), a detection element (200) for detecting data of the impregnating material (6) within the body and / or on the body, in particular a profile and / or a fill level of the impregnating material, a data transmission element (201) for data transmission between the physical part (204) and the virtual part (203), wherein the data can be transmitted to the virtual part (203) by the data transmission element (201),where the digital image of the body (4D) can be changed depending on the data., 2. Digital twin system according to claim 1, wherein the body (2, 3, 4) moves, in particular rotates, around the rotation axis (A) before and / or during and / or after the sprinkling, wherein the detection element (200) detects data of the impregnation material (6) within the body and / or on the body, in particular a course and / or a fill level of the impregnation material (6), wherein the data transmission element (201) transmits the data to the virtual part (203), wherein the digital image of the body changes depending on the data.

3. Digital twin system (1000), wherein the physical part (204) has a connection unit (24), wherein the Connection unit (24) is designed for connecting the winding (41) to an electrical power supply (25), wherein the winding can be heated by a current flow of the electrical power supply (25).

4. Digital twin system (1000) according to one of the preceding claims, wherein the winding (41) can be flowed through by current before and / or during and / or after the sprinkling in order to heat the winding.

5. Digital twin system (1000) according to one of the preceding claims, wherein upon detection of an impregnation deficiency, a dosage amount of the impregnation material and / or a dosage location and / or a current flow in the winding can be changed to change a winding temperature.

6. Digital twin system (1000) according to one of the preceding claims, wherein the body (2,3,4) rotates by a first angle (α1) in a first direction of rotation, preferably in a positive direction of rotation (RI), wherein the body (4) rotates by the negative first angle -(α1) or a second angle (α2) in a second direction of rotation (R2), preferably in a negative direction of rotation.

7. Digital twin system (1000) according to one of the preceding claims, wherein the body (4) rotates in the first rotational direction (RI) at a first rotational speed, wherein the body (4) rotates in the second rotational direction (R2) at a second rotational speed, wherein the first rotational speed is greater than the second rotational speed.

8. Digital twin system (1000) according to one of the preceding claims, wherein the body (2,3,4) is vertically tiltable with respect to the horizontal.

9. Method for interaction of a digital twin system (1000), comprising: a physical part (204) with a physical device (10) for impregnating a body (2, 3, 4), comprising a drive (11) with a drive shaft (12) for moving the body (2, 3, 4) about a rotation axis (A) and a dripping unit (51) for dripping the body (2, 3, 4) with impregnating material (6), and with a physical body (2, 3, 4) to be impregnated, comprising at least one winding (41, 41B), a virtual part (203) with a digital image (4D) of the body (2, 3, 4), a detection element (200) for detecting data of the impregnating material (6) within the body and / or on the body, in particular a course and / or a fill level of the impregnating material, a data transmission element (201) for data transmission between the physical part (204) and the virtual part (203), wherein the data is transmitted by the data transmission element (201) to the virtual part (203), wherein the digital image of the body (2,3,4) is changed depending on the data., 10. The method according to claim 9, wherein the body (2, 3, 4) is rotated about the rotation axis (A) before and / or during and / or after the sprinkling, wherein data of the impregnating material (6) within the body and / or on the body, in particular a course and / or a fill level of the impregnating material (6), are recorded by the recording element (200), wherein the data are transmitted to the virtual part (203) by the data transmission element (201), wherein the digital image of the body is changed depending on the data.

11. Method according to one of claims 9 or 10, wherein upon detection of an impregnation deficiency, a dosage amount of the impregnation material (6) and / or a dosage location and / or a current flow in the winding (41) is changed to change a winding temperature.

12. Method for generating a software object (400) functioning as a digital image (4D) of a physical body (2, 3, 4) to be impregnated, having at least one winding (41, 41B), wherein the digital image (4D) belongs to a virtual part (203) of a digital twin system (1000) according to one of claims 1 to 8.

13. The method according to claim 12, wherein the software object (400) is changed cyclically.

14. Physical body (2,3,4) comprising at least one winding (41,41B), in particular stator or rotor of a dynamoelectric rotary machine (1), as part of the digital twin system (1000) according to one of claims 1 to 8.

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