NL2017030A - A brushless electric motor system comprising a rotor, a stator and power electronic means. - Google Patents

A brushless electric motor system comprising a rotor, a stator and power electronic means. Download PDF

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Publication number
NL2017030A
NL2017030A NL2017030A NL2017030A NL2017030A NL 2017030 A NL2017030 A NL 2017030A NL 2017030 A NL2017030 A NL 2017030A NL 2017030 A NL2017030 A NL 2017030A NL 2017030 A NL2017030 A NL 2017030A
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Netherlands
Prior art keywords
coils
electric motor
brushless electric
motor system
pair
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NL2017030A
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Dutch (nl)
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NL2017030B1 (en
Inventor
Henricus Renier Klomp Martinus
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Saluqi Holding B V
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Publication date
Application filed by Saluqi Holding B V filed Critical Saluqi Holding B V
Priority to NL2017030A priority Critical patent/NL2017030B1/en
Priority to US16/312,744 priority patent/US10680477B2/en
Priority to CN202110211377.1A priority patent/CN113014041B/en
Priority to EP17730209.8A priority patent/EP3476025A1/en
Priority to CN201780051918.0A priority patent/CN109716625B/en
Priority to PCT/EP2017/065034 priority patent/WO2017220542A1/en
Publication of NL2017030A publication Critical patent/NL2017030A/en
Application granted granted Critical
Publication of NL2017030B1 publication Critical patent/NL2017030B1/en
Priority to US16/893,092 priority patent/US11011951B2/en

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
    • H02P29/02—Providing protection against overload without automatic interruption of supply
    • H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/06—Machines characterised by the presence of fail safe, back up, redundant or other similar emergency arrangements

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

A brushless electric motor system, comprising a rotor comprising a plurality of permanent magnets, a stator comprising at least three groups of six teeth placed adjacently to each other, wherein electrically excitable coils are winded on each of said six teeth, respectively, wherein said brushless electric motor system is controlled using three phases, and wherein each of said at least three groups of six teeth is divided into three pairs of two coils, wherein the teeth in each group are placed adjacently to each other in such a way that the coils are ordered in A.1-A.2-B.2-B.1-C.1-C.2 or A.2-A.1-B.1-B.2-C.2-C.1, the system further comprising at least nine power stages wherein each power stage is arranged to drive a single pair of two coils in such a way that an induction field of a first coil of said pair is directed oppositely to an induction field of a second coil of said pair.

Description

Title: A brushless electric motor system comprising a rotor, a stator and power electronic means.
Description
The present invention is related to brushless electric motor systems, more specifically to brushless electric motor systems comprising a stator having electrically excitable coils, and a rotor having a plurality of permanent magnets, which rotor is arranged to rotate with respect to the stator.
In general, a brushless electric motor refers to a Direct Current, DC, motor wherein a mechanical brush and a commutator have been modified into electric means. Accordingly, since such a brushless electric motor does not generate abrasion, dust and electric noise, and has good output and efficiency, it is appropriate for, for example, a high-speed rotation type motor, so that various researches and developments have been conducted on the next generation motor.
However, in case of the brushless electric motor, a rotor of a DC motor, around which coils are wound, is substituted with a permanent magnet, and a method of controlling the speed is switched from a voltage control type into an excitation phase control type, so that a driving circuit, in the form of power control means, is required.
In general, a brushless electric motor comprises a rotor comprising a plurality of permanent magnets, and a stator comprising a plurality of electrically excitable coils for generating an induction field for interaction with said plurality of permanent magnets to cause said rotor to rotate with respect to said stator.
The drawbacks of known brushless electric motors is that they are not sufficiently reliable and safe, especially when they are to be used in fields like electric cars or the like.
It is therefore an object of the present invention to provide for a brushless electric motor system which is inherently more reliable and safe.
In order to achieve that object, the invention provides, in a first aspect thereof, in a brushless electric motor system, comprising: a rotor comprising a plurality of permanent magnets; a stator comprising at least three groups of six teeth placed adjacently to each other, wherein electrically excitable coils are winded on each of said six teeth, respectively, for generating an induction field for interaction with said plurality of permanent magnets to cause said rotor to rotate with respect to said stator, wherein said brushless electric motor system is controlled using three phases (A, B, C), and wherein each of said at least three groups of six teeth is divided into three pairs (A.1-A.2-B.2-B.1-C.1-C.2, A.2-A.1-B.1-B.2-C.2-C.1) of two coils, wherein the teeth in each group are placed adjacently to each other in such a way that the coils are ordered in A.1-A.2-B.2-B.1-C.1-C.2 or A.2-A.1-B.1-B.2-C.2-C.1, wherein A. 1-A.2 comprises two coils in the first phase (A), and wherein B.1-B.2 comprises two coils in the second phase (B), wherein C.1-C.2 comprises two coils in the third phase (C), wherein A.2-A.1 comprises two coils in the first phase (A), and wherein B. 2-B.1 comprises two coils in the second phase (B) and wherein C.2-C.1 comprises two coils in the third phase (C), at least nine power stages, such as half h-bridges, wherein each power stage is arranged to drive a single pair (A.1-A.2, B.1-B.2, C.1-C.2, A.2-A.1, B.2-B.1, C.2-C.1) of two coils in such a way that an induction field of a first coil (A.1, B.1, C.1) of said pair is directed oppositely to an induction field of a second coil (A.2, B.2, C.2) of said pair.
It was the insight of the inventor to provide a stator with at least three groups of six teeth placed adjacently to each other, wherein electrically excitable coils are winded on each of said twelve teeth, respectively, wherein each of said at least three groups of six teeth is divided into three pairs of two coils, wherein the teeth in each group are placed adjacently to each other in such a way that the coils are ordered in A.1-A.2-B.2-B.1-C.1-C.2 or A.2-A.1-B.1-B.2-C.2-C.1. Further, a single power stage is utilized for driving a single pair of two coils. The above accomplishes that the brushless electric motor system is inherently more reliable, safe and redundant compared to conventional brushless electric motor systems.
Another advantage of the brushless electric motor system according to the present invention is that, due to above disclosed features, the power stages, the rotor and the stator can be construed as a single integral part.
In accordance with the present invention, a single power stage may comprise a half H-bridge composed of two Field Effect Transistors, wherein the output of the half H-bridge is directly connected to the pair of coils. A brushless electric motor is also known as an electronically commutated motor, which is a synchronous motor that is powered by a Direct Current, DC, electric source via power stages, which produce an AC electric signal to drive the coils and thus the motor. In this context, AC, alternating current, does not imply a sinusoidal waveform, but rather a bi-directional current with no restriction on waveform. Additional sensors and electronics eventually control the outputs of the power stages in their amplitude, waveform and frequency, i.e. rotor speed.
The rotor comprises a plurality of permanent magnets which are each placed adjacently to each other along said circumference of said rotor, wherein said permanent magnets are ordered in such a way that there is an alternating order of the north and south poles facing the electrically excitable coils. That is, for example, the first permanent magnet produces a north pole facing the coils, the permanent magnet placed directly adjacent thereto produces a south pole facing the coils, etc.
Based on the above, the invention comprises at least three groups of six teeth, wherein electrically excitable coils are winded on each of the six teeth respectively. As such, according to the invention, the brushless electric motor system comprises at least nine pairs of two coils. As mentioned before, each pair of two coils has its own power stage such that the brushless electric motor system also comprises at least nine power stages. There is thus a direct coupling between the amount of pairs of two coils and the amount of required power stages.
Further, the invention is directed to a brushless electric motor system. In accordance with the present invention, the brushless electric motor system may also be used as a generator for generating electrical power. The brushless electric motor system may also be used as a combined motor and generator in one.
In an example, the brushless electric motor system comprises: at least one power electronic means arranged for controlling said at least nine power stages, wherein said at least one power electronic means comprise: a first driver for driving at least two of said at least nine power stages, wherein pair of coils in these at least two of said at least nine power stages are in the first phase; a second driver for driving another at least two of said at least nine power stages wherein pair of coils in these another at least two of said at least nine power stages are in the second phase; a third driver for driving yet another at least two of said at least nine power stages, wherein pair of coils in these yet another at least two of said at least nine power stages are in the third phase.
The inventor has found that, typically, only one driver is needed for driving all the power stages having coils in the same phase. Only a minimum of three drivers are required as the brushless electric motor system is controlled using three phases.
In an example, each of the at least nine power stages comprises a single half H-bridge for driving the pair of two coils.
An H-bridge is an electronic circuit that enables a voltage to be applied across a load in either direction. These circuits are used in different types of fields to allow electric motors to run forwards and backwards. A variation of this electronic circuit uses just the two FET’s or transistors on one side of the load, in this example the load is a pair of two coils, similar to a class AB amplifier. Such a configuration is also called a "half bridge". A half H-bridge is a practical implementation for driving the electrically excitable coils wounded around the teeth of the stator.
In another example, each of said two coils of a pair are connected in parallel, and wherein each of said two coils of said pair are winded differently: a first coil (A.1, B.1, C.1) of said pair is winded clockwise, and a second coil (A.2, B.2, C.2) of said pair is winded anticlockwise, thereby accomplishing that, when actuated, a produced induction field of a first coil (A.1, B.1, C.1) of said pair is opposite to a produced induction field of a second coil (A.2, B.2, C.2) of said pair.
As mentioned above, coils of a particular pair are winded on teeth which are positioned adjacently to each other along the circumference of the stator. In order to make sure that the induction fields generated by the two coils in a pair are oppositely directed to each other, each time a power stage drives these coils, the inventor has found that it is advantageous if these coils are connected in parallel and that the winding of these coils is different. This makes sure that, according to the well known right-hand rule, the induced magnetic fields are directed oppositely.
In a further example, the stator comprises six groups of six teeth and, correspondingly, eighteen power stages, such as half h-bridges. The stator thus comprises in total thirty-six electrically excitable coils. Each power stage is arranged to drive a single pair of two coils in such a way that a pole of a first coil of said pair is opposite to a pole of a second coil of said pair.
This example is advantageous as, due to the redundant implementation, it further improves the reliability of the system. Any electrically excitable coil and/or particular power stage may still break down but the remaining, i.e. properly functioning, coils and power stages will make sure that the brushless electric motor system will still function decently. That is, the brushless electric motor system may have reduced power due to any break down in a coil or particular power stage, but the brushless electric motor system will still function.
In another example, the system comprising three sub control units, each operating one power electronic means, wherein each power electronic means comprises: a first driver for driving two of said eighteen power stages, wherein pair of coils in these two power stages are in the first phase; a second driver for driving another two of said eighteen power stages wherein pair of coils in these another two are in the second phase; a third driver for driving yet another two of said eighteen power stages, wherein pair of coils in these yet another two power stages are in the third phase.
The advantage of this example is that it further improves the reliability of the brushless electric motor system. Two sub control units can make sure that the brushless electric motor system is functioning properly in case one of the three sub control units breaks down. The brushless electric motor system will then, however, function with a reduced power.
Here, it is preferred in case each of the sub control units comprise its own rotor position sensor for determining a position of said rotor with respect to said stator, as in such a case the sub control units do not rely on a single rotor position sensor for determining the position of the rotor with respect to the stator. In accordance with the present invention, a rotor position sensor is, for example, a hall sensor which is a transducer that varies its output voltage in response to a magnetic field. Hall sensors are used for proximity switching, positioning, speed detection, and current sensing applications.
In a further example, the rotor comprises forty-two permanent magnets. The inventor has found that the combination of forty-two permanent magnets and thirty-six electrically excitable coils is the most promising implementation for a brushless electric motor system.
In yet another example, the brushless electric motor system further comprises a master control unit arranged for controlling said three sub control units based on inputs in said master control unit related to any of speed, torque, accelerator and brake signals.
The advantage hereof is that this makes it possible to apply different types of controls for controlling the groups of coils.
In a further example, the rotor comprises a solid rotatable part, wherein said permanent magnets are connected to said rotatable part in such a way that said permanent magnets are skewed with respect to a longitudinal axis of the brushless electric motor system.
In yet another example, the outputs of said pair of two coils in a group A.1-A.2-B.2-B.1-C.1-C.2 and/or outputs of said pair of two coils in a group A.2-A.1-B.1-B.2-C.2-C.1 are connected to each other.
In accordance with the present invention the rotor may surround the stator such that an external rotor is obtained, but the stator may also surround the rotor such that an internal rotor is obtained.
In a second aspect, the invention provides in a method of operating a brushless electric motor system according to any of the examples provided above.
In a third aspect, the invention provides in a motorized electrical vehicle comprising a brushless electric motor system according to any of the examples as provided above.
The expressions, i.e. the wording, of the different aspects comprised by the brushless electric motor system, the method and the motorized electrical vehicle according to the present invention should not be taken literally. The wording of the aspects is merely chosen to accurately express the rationale behind the actual function of the aspects.
In accordance with the present invention, different aspects applicable to the above mentioned examples of the brushless electric motor system, including the advantages thereof, correspond to the aspects which are applicable to method and/or the motorized electrical vehicle according to the present invention.
The above-mentioned and other features and advantages of the invention will be best understood from the following description referring to the attached drawings. In the drawings, like reference numerals denote identical parts or parts performing an identical or comparable function or operation.
Brief description of the drawings
Figure 1 is a schematic diagram illustrating a particular embodiment of the brushless electric motor system according to the present invention.
Figure 2 is a schematic figure illustrating a stator and power stages according to the present invention.
Figure 3 is a schematic diagram of a rotor according to the present invention, which rotor is suitable to surround a stator shown in figure 2.
Detailed description
Figure 1 is a schematic diagram illustrating a particular embodiment of brushless electric motor system 1 according to the present invention. Here, the invention is displayed as a schematic diagram as to explain the functionality. The actual stator and rotor of the system 1 are not shown, there aspects are shown in figure 2 and figure 3, respectively. Figure 1 thus displays the electronic circuitry including the power stages 2-7 and the electrically excitable coils which are winded on each of the teeth of the stator.
According to the embodiment shown in figure 1, a single master control unit 18 is provided which is arranged for controlling three sub control units 11, 12, 13 based on inputs 17 in said master control unit related to any of speed, torque, accelerator and brake signals. It may be advantageous in case such a master control unit 18 is implemented in such a way that it is capable of detecting any form of malfunctioning in the master control unit 18 itself, and, preferably, is able to repair and/or recover from any error or malfunctioning detected. This improved the reliability and the safety aspects of the motor system 1. The functionality of the master control unit 18 may also be implemented redundantly so that in case of an error or malfunctioning in a part of the system, the remainder of the system 1 is able to take over the corresponding functionality thereby increasing the reliability of the system 1 as a whole.
The brushless electric motor system 1 further comprises three sub control units 11, 12, 13, each operating one power electronic means 20. Each sub control unit 11, 12, 13 is coupled to its own rotor position sensor, not shown, via inputs 14, 15, 16, respectively, for determining a position of the rotor with respect to said stator. This aspect further improves the reliability of the system 1 as a whole, as even in case one of the rotor position sensors fails, the motor 1 is still able to function properly. That is, a malfunctioning in one of the rotor position sensors will lead to a sub control unit 11, 12, 13 to malfunction, i.e. to function improperly. As this specific motor 1 comprises three sub control units 11, 12, 13, the remaining two sub control units 11, 12, 13, i.e. the sub control units 11, 12, 13 which are operating properly, will make sure that the motor 1 is at least functioning correctly. This does mean that the motor 1 has a reduced available power as one of the sub control units 11, 12, 13 is not contributing thereto.
According to the present invention, the rotor position sensors are typically comprised of hall sensors or rotary encoders. Rotary encoders along with their controllers could be used to exactly what the angle of the rotor is with respect to the stator. A Hall sensor is, for example, placed in an appropriate position. It can sense if in front of it is the North or the South pole. Each of the Hall sensors will then transmit this signal to its corresponding sub control unit 11, 12, 13. The sub control units 11, 12, 13 will, subsequently, then switch on or off the appropriate drivers 8, 9, 10, needed in order to provide the torque.
Each of the power electronic means 20 comprises a first driver 8 for driving two of the eighteen power stages, i.e. the power stages referred to with reference numerals 4 and 7, and comprises a second driver 9 for driving another two of said eighteen power stages, i.e. the power stages referred to with reference numerals 3 and 6, and further comprises a third driver 10 for driving yet another two of said eighteen power stages, i.e. the power stages referred to with reference numerals 2 and 5.
The above is explained with reference to one of the sub control units 11, i.e. only the sub control unit referred to with reference numeral 11. It is to be understood that both of the other two sub control units 12, 13 are coupled to a power electronic means, and that these power electronic means each are coupled to six power stages, etc. This adds up to a total of eighteen power stages, divided over nine drivers, three sub control units and a single master control unit. Such a implementation is beneficial for the reliability of the brushless electric motor system as a whole.
It was the insight of the inventor that the power stages 2-7 and the coils which are winded around the teeth of the stator tend to breakdown the most. As such, the brushless electric motor system 1 is designed in such a way that a failure occurring in these components is not destructive for the functioning in the system 1 as a whole. This is accomplished, amongst other, by the redundancy aspects of the invention.
As such, it was the insight of the inventor to couple one power stage to each pair of coils. For example, power stage indicated with reference numeral 7 is coupled to the pair of coils A.1, A.2 which are controlled using the phase A.
Each power stage 2-7 comprises a half H-bridge for driving a pair of coils. A half H-bridge is an electronic circuit comprising two transistors or two Field Effect Transistors, FET, which are controlled by a control signal in such a way that in case a high control signal is supplied a load is coupled to a high input voltage, and in case a low control signal is supplied the load is coupled to a low input voltage. Each of the driver 8, 9, 10 should be designed in such a way that it is not possible to drive the half H-bridge in such a way that both of the two FET’s are in their conductive state such that a short circuit between the high input voltage and the low input voltage occurs.
So, following the reasoning provided above, only one pair of coils are affected in case a single half H-bridge, for example a particular FET thereof, breaks down. The remaining of the pairs of coils still function properly thereby contributing to the reliability of the system 1.
According to the invention, each of the two coils of a pair are driven such that the induction field of a first coil A.1, B.1, C.1 of the pair is directed oppositely to an induction field of a second coil A.2, B.2, C.2 of the pair.
This aspect may be accomplished by connecting each of the two coils of a pair, for example coils referred to with reference numeral A.1 and A.2,, in parallel, wherein each of the two coils of the pair are winded differently. That is, a first coil, for example coil referred to with reference numeral A.1, is winded clockwise and the second coil, i.e. the coil referred to with reference numeral A.2, is winded anticlockwise. This accomplishes that, when the half H-bridge 7 drives the coils A.1 and A.2, the produced induction fields of these two coils are oppositely directed. Effectively, a magnetic north pole and a magnetic south pole are created in such a way.
This aspect is of importance as, according to the present invention, the coils are placed adjacently to each other in the order of A.1-A.2-B.2-B.1-C.1-C.2 or A.2-A.1-B.1-B.2-C.2-C.1. Here, the number following the letter A, B or C indicates the direction of the magnetic induction field. So, coils referred to with letters having a same number produce a magnetic induction field in the same direction. This means that, when actuated, the coil A.2 produces a magnetic induction field in the same direction as the coils B.2 and C.2. Accordingly, when actuated, the coil A.1 produces a magnetic induction field in the same direction as the coils B.1 and C.1.
Further, the rotor comprises permanent magnets which have either a magnetic north pole or a magnetic south pole directed to the coils of the stator. The permanent magnets are oriented in such a way the magnetic poles are alternately ordered, i.e. first a magnetic north pole directed to the coils, then a magnetic south pole directed to the coils, then again a magnetic north pole directed to the coils, etc. The above ensures that the rotor rotates smoothly with respect to the stator.
The outputs of the coils in ach group of three pairs of coils 19 are connected to each other in order to further improve the reliability of the system 1.
Based on the above, the brushless electric motor system 1 comprises thirty-six electrically excitable coils winded on the teeth of the stator, and forty-two permanent magnets comprised by the rotor.
Figure 2 is a schematic figure illustrating a stator 51 and combined power stages, i.e. referred to with reference H, according to the present invention.
In this particular example, the stator 51 is designed in such a way that a rotor is to surround the stator 51. The stator 51 comprises a plurality of teeth 52, wherein electrically excitable coils are winded on each of those teeth 52. Here, the stator 51 comprises exactly thirty-six teeth 52, divided in to six groups 53 of six teeth 52 each. The groups, and thus also the teeth 52 comprised by the groups 53, are placed, i.e. oriented, adjacently to each other along a circumference of the rotor 51. The electrically excitable coils, i.e. the ones referred to with references A.1-A.2- B.2-B.1-C.1-C.2 or A.2-A.1-B.1-B.2-C.2-C.1, are to generate magnetic induction fields for interaction with a plurality of permanent magnets comprised by the rotor (not shown). This causes the rotor to rotate with respect to the stator 51.
The teeth 52 may comprise a magnetic core for enhancing the produced magnetic field. The shape of any tooth 52 is such that a magnetic field produced by a coil winded on such a tooth 52 is directed radially with respect to an inner axis of the stator 51, i.e. towards the permanent magnets comprised by the rotor.
Figure 3 is a schematic diagram of a rotor 81 according to the present invention, which rotor 81 is suitable to surround a stator shown in figure 2. Here, the rotor comprises forty-two recesses 82, which recesses 82 are used to accommodate the permanent magnets (not shown). The recesses are spaced 83 with respect to each other such that the magnets do not, or minimally, influence each other. The stator 51 of figure 2 is to be placed inside the rotor 81 shown in figure 3. The rotor 81 is further rotatably mounted to the stator 51 such that the rotor 81 is able to rotate with respect to the stator 51.
In accordance with the present invention, the rotor 81 may also be implemented as a shaft or the like, wherein the stator 51 surround the rotor 81.
The present invention is not limited to the embodiments as disclosed above, and can be modified and enhanced by those skilled in the art beyond the scope of the present invention as disclosed in the appended claims without having to apply inventive skills.

Claims (15)

1. Een borstelloos elektrisch motorsysteem omvattende: - een rotor omvattende een veelheid van permanente magneten; - een stator omvattende ten minste drie groepen van zes tanden geplaatst naast elkaar, waarin elektrisch exciteerbare spoelen gewikkeld zijn op elk van de zes tanden, respectievelijk, voor het genereren van een inductieveld voor interactie met de veelheid van permanente magneten voor het bewerkstelligen dat de rotor roteert ten opzichte van de stator, waarin het borstelloos elektrisch motorsysteem wordt gestuurd gebruikmakende van drie fasen (A, B, C) en waarin elk van de ten minste drie groepen van zes tanden verdeeld is in drie paren (A.1-A.2-B.2-B.1-C.1-C.2, A.2-A.1-B.1-B.2-C.2- C.1) van twee spoelen, waarin de tanden in elke groep geplaatst zijn naast elkaar op een dusdanige manier dat de spoelen geordend zijn in A.1-A.2-B.2-B.1-C.1-C.2 of A.2-A.1-B.1-B.2-C.2-C.1, waarin A1-A2 omvat twee spoelen in de eerste fase (A), en waarin B.1-B2 omvat twee spoelen in de tweede fase (B), waarin C.1-C2 omvat twee spoelen in de derde fase (C), waarin A.2-A.1 omvat twee spoelen in de eerste fase (A), en waarin B.2-B.1 omvat twee spoelen in de tweede fase (B) en waarin C.2-C.1 omvat twee spoelen in de derde fase (C), - ten minste negen vermogenstrappen, zoals halve H-bruggen, waarin elke vermogenstrap is ingericht voor het sturen van een enkel paar (A.1-A.2, B.1-B.2, C.1-C.2, A.2-A.1, B.2-B.1, C.2-C.1) van twee spoelen op een dusdanige manier dat een inductieveld van een eerste spoel (A.1, B.1, C.1) van het paar tegenovergesteld gericht is aan een inductieveld van een tweede spoel (A.2, B.2, C.2) van het paar.A brushless electric motor system comprising: - a rotor comprising a plurality of permanent magnets; - a stator comprising at least three groups of six teeth placed side by side, in which electrically excitable coils are wound on each of the six teeth, respectively, for generating an induction field for interaction with the plurality of permanent magnets to cause the rotor rotates relative to the stator, in which the brushless electric motor system is controlled using three phases (A, B, C) and in which each of the at least three groups of six teeth is divided into three pairs (A.1-A.2 -B.2-B.1-C.1-C.2, A.2-A.1-B.1-B.2-C.2-C.1) of two coils, in which the teeth in each group are placed next to each other in such a way that the coils are arranged in A.1-A.2-B.2-B.1-C.1-C.2 or A.2-A.1-B.1 -B.2-C.2-C.1, in which A1-A2 comprises two coils in the first phase (A), and in which B.1-B2 comprises two coils in the second phase (B), in which C.1 -C2 comprises two coils in the third phase (C), wherein A.2-A.1 comprises two coils in the first phase (A), and wherein B.2-B.1 comprises two coils in the second phase (B) and wherein C.2-C.1 comprises two coils in the third phase (C), - at least nine power stages, such as half H-bridges, in which each power stage is arranged for controlling a single pair (A.1-A.2, B.1-B.2, C.1-C.2, A.2-A.1, B.2-B.1, C.2-C.1) of two coils in such a way that an induction field of a first coil (A.1, B.1, C.1) of the pair is opposed to an induction field of a second coil (A.2, B.2, C.2) of the pair. 2. Borstelloos elektrisch motorsysteem volgens conclusie 1, waarin het systeem omvat: - ten minste één vermogenselektronicamiddel ingericht voor het sturen van de ten minste negen vermogenstrappen, waarin het ten minste ene vermogenselektronicamiddel omvat: - een eerste stuurorgaan voor het sturen van ten minste twee van de ten minste negen vermogenstrappen, waarin paren van spoelen in deze ten minste twee van de ten minste negen vermogenstrappen in de eerste fase zijn; - een tweede stuurorgaan voor het sturen van een andere van ten minste twee van de ten minste negen vermogenstrappen waarin paren van spoelen in deze andere ten minste twee van de ten minste negen vermogenstrappen in de tweede fase zijn; - een derde stuurorgaan voor het sturen van nog een andere ten minste twee van de ten minste negen vermogenstrappen, waarin paren van spoelen in deze nog een andere ten minste twee van de ten minste negen vermogenstrappen in de derde fase zijn.A brushless electric motor system according to claim 1, wherein the system comprises: - at least one power electronics means adapted to control the at least nine power stages, wherein the at least one power electronics means comprises: - a first control means for controlling at least two of the at least nine power stages, wherein pairs of coils in these are at least two of the at least nine power stages in the first phase; - a second controller for controlling another of at least two of the at least nine power stages in which pairs of coils in said other are at least two of the at least nine power stages in the second phase; - a third controller for controlling yet another at least two of the at least nine power stages, wherein pairs of coils in this yet another at least two of the at least nine power stages are in the third phase. 3. Borstelloos elektrisch motorsysteem (1) volgens een van de voorgaande conclusies, waarin elk van de ten minste negen vermogenstrappen een halve h-brug omvatten.Brushless electric motor system (1) according to one of the preceding claims, wherein each of the at least nine power stages comprises a half-h bridge. 4. Borstelloos elektrisch motorsysteem (1) volgens een van de voorgaande conclusies, waarin elk van de twee spoelen van een paar parallel verbonden zijn, en waarin elk van de twee spoelen van het paar verschillend zijn gewikkeld: - een eerste spoel (A.1, B.1, C.1) van het paar is met de klok mee gewikkeld, en - een tweede spoel (A.2, B.2, C.2) van het paar is tegen de klok in gewikkeld, hiermee bewerkstelligende dat, wanneer geactueerd, een geproduceerd inductieveld van een eerste spoel (A.1, B.1, C.1) van het paar tegenovergesteld is aan een geproduceerd inductieveld van een tweede spoel (A.2, B.2, C.2) van het paar.Brushless electric motor system (1) according to one of the preceding claims, wherein each of the two coils of a pair are connected in parallel, and wherein each of the two coils of the pair are wound differently: - a first coil (A.1) , B.1, C.1) of the pair is wound clockwise, and - a second coil (A.2, B.2, C.2) of the pair is wound counterclockwise, thereby effecting , when actuated, a produced induction field of a first coil (A.1, B.1, C.1) of the pair is opposite to a produced induction field of a second coil (A.2, B.2, C.2) of the couple. 5. Borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies, waarin de stator omvat zes groepen van zes tanden en, overeenkomstig, achttien vermogenstrappen, zoals halve H-bruggen, waarin elke vermogenstrap is ingericht voor het sturen van een enkel paar (A.1-A.2, B.1-B.2, C.1-C.2, A.2-A.1, B.2-B.1, C.2-C.1) van twee spoelen op een dusdanige manier dat een pool van een eerste spoel (A.1, B.1, C.1) van het paar tegenovergesteld is aan een pool van een tweede (A.2, B.2, C.2) van het paar.A brushless electric motor system according to any one of the preceding claims, wherein the stator comprises six groups of six teeth and, correspondingly, eighteen power stages, such as half H bridges, wherein each power stage is adapted to control a single pair (A.1). -A.2, B.1-B.2, C.1-C.2, A.2-A.1, B.2-B.1, C.2-C.1) of two coils on a such that a pole of a first coil (A.1, B.1, C.1) of the pair is opposite to a pole of a second (A.2, B.2, C.2) of the pair. 6. Borstelloos elektrisch motorsysteem volgens conclusie 5 en conclusie 2, waarbij het systeem omvat drie deelstuureenheden, elk bedienend een vermogenselektronicamiddel, waarin elk vermogenselektronicamiddel oimvat: - een eerste stuurorgaan voor het sturen van twee van de achttien vermogenstrappen; - een tweede stuurorgaan voor het sturen van een andere twee van de achttien vermogenstrappen; - een derde stuurorgaan voor het sturen van nog een andere twee van de achttien vermogenstrappen.A brushless electric motor system according to claim 5 and claim 2, wherein the system comprises three sub-control units, each serving a power electronics means, wherein each power electronics means includes: - a first controller for controlling two of the eighteen power stages; - a second control means for controlling another two of the eighteen power stages; - a third control means for controlling yet another two of the eighteen power stages. 7. Borstelloos elektrisch motorsysteem volgens conclusie 6, waarin elk van de deelstuureenheden omvat diens eigen rotorpositiesensor voor het bepalen van een positie van de rotor ten opzichte van de stator.A brushless electric motor system according to claim 6, wherein each of the sub-control units comprises its own rotor position sensor for determining a position of the rotor relative to the stator. 8. Borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies, waarin de rotor omvat tweeënveertig permanente magneten.A brushless electric motor system according to any of the preceding claims, wherein the rotor comprises forty-two permanent magnets. 9. Borstelloos elektrisch motorsysteem volgens conclusie 6, waarin het borstelloos elektrisch motorsysteem verder omvat een masterstuureenheid ingericht voor het sturen van de drie deelstuureenheden op basis van invoeren in de masterstuureenheid gerelateerd aan een van snelheid, koppel, acceleratie en remsignalen.The brushless electric motor system of claim 6, wherein the brushless electric motor system further comprises a master control unit adapted to control the three sub-control units based on inputs to the master control unit related to a speed, torque, acceleration, and brake signals. 10. Borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies, waarin de rotor omvat een vast roteerbaar deel, waarin de permanente magneten verbonden zijn met het roteerbare deel op een dusdanige manier dat de magneten scheef zijn ten opzichte van een longitudinale as van het borstelloze elektrische motorsysteem.A brushless electric motor system according to any one of the preceding claims, wherein the rotor comprises a fixed rotatable member, wherein the permanent magnets are connected to the rotatable member in such a way that the magnets are skewed relative to a longitudinal axis of the brushless electric engine system. 11. Borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies, waarin uitvoeren van de paar van twee spoelen in een groep A.1-A.2-B.1-B.2-C.1-C.2, en/of uitvoeren van het paar van twee spoelen in een groep A.2-A.1-B.2-B.1-C.2- C.1 met elkaar zijn verbonden.A brushless electric motor system according to any one of the preceding claims, wherein executing the pair of two coils in a group A.1-A.2-B.1-B.2-C.1-C.2, and / or carrying out the pair of two coils in a group A.2-A.1-B.2-B.1-C.2-C.1. 12. Borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies, waarin de rotor de stator omgeeft.A brushless electric motor system according to any one of the preceding claims, wherein the rotor surrounds the stator. 13. Borstelloos elektrisch motorsysteem volgens een van de conclusies 1 tot en met 10, waarin de stator de rotor omgeeft.The brushless electric motor system according to any of claims 1 to 10, wherein the stator surrounds the rotor. 14. Werkwijze voor het bedienen van een borstelloos elektrisch motorsysteem volgens een van de voorgaande conclusies.A method for operating a brushless electric motor system according to any of the preceding claims. 15. Gemotoriseerd elektrisch voertuig omvattende een borstelloos elektrisch motorsysteem volgens een van de conclusies 1 tot en met 13.A motorized electric vehicle comprising a brushless electric motor system according to any one of claims 1 to 13.
NL2017030A 2016-06-23 2016-06-23 A brushless electric motor system comprising a rotor, a stator and power electronic means. NL2017030B1 (en)

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NL2017030A NL2017030B1 (en) 2016-06-23 2016-06-23 A brushless electric motor system comprising a rotor, a stator and power electronic means.
US16/312,744 US10680477B2 (en) 2016-06-23 2017-06-20 Brushless electric motor system comprising a rotor, a stator and power electronic means
CN202110211377.1A CN113014041B (en) 2016-06-23 2017-06-20 Brushless motor system comprising a rotor, a stator and power electronics
EP17730209.8A EP3476025A1 (en) 2016-06-23 2017-06-20 A brushless electric motor system comprising a rotor, a stator and power electronic means.
CN201780051918.0A CN109716625B (en) 2016-06-23 2017-06-20 Brushless motor system comprising rotor, stator and power electronic device
PCT/EP2017/065034 WO2017220542A1 (en) 2016-06-23 2017-06-20 A brushless electric motor system comprising a rotor, a stator and power electronic means.
US16/893,092 US11011951B2 (en) 2016-06-23 2020-06-04 Brushless electric motor system comprising a rotor, a stator and power electronic means

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