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WO2018050846A1 - Machine comportant un entraînement à vitesse de rotation variable pour produire un courant continu - Google Patents

Machine comportant un entraînement à vitesse de rotation variable pour produire un courant continu Download PDF

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Publication number
WO2018050846A1
WO2018050846A1 PCT/EP2017/073326 EP2017073326W WO2018050846A1 WO 2018050846 A1 WO2018050846 A1 WO 2018050846A1 EP 2017073326 W EP2017073326 W EP 2017073326W WO 2018050846 A1 WO2018050846 A1 WO 2018050846A1
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WO
WIPO (PCT)
Prior art keywords
phase
phase windings
stator
turns
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2017/073326
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German (de)
English (en)
Inventor
Chris W. Chrystowski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pragmatec GmbH
Seva Academy Ltd
Original Assignee
Pragmatec GmbH
Seva Academy Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pragmatec GmbH, Seva Academy Ltd filed Critical Pragmatec GmbH
Publication of WO2018050846A1 publication Critical patent/WO2018050846A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/34—Generators with two or more outputs

Definitions

  • Alternators are used. A distinction is made between single-phase and multi-phase generators, depending on the number of alternating voltages that such a generator supplies.
  • a rotor (usually mechanically driven) with a rotor winding rotates e.g. inside a stator having one, two or more independent stator windings.
  • Typical examples are generators, such as those used in vehicles.
  • the alternators are driven by the engine of the vehicle at a varying speed.
  • Fig. 1A the section through a claw pole generator is shown. However, only the essential elements of such a claw pole generator are shown.
  • the generator has a pulley 3, which sits here at one end of a drive shaft 4.
  • a stator core (usually as a laminated core) is provided, which is referred to here as the stator winding 6
  • stator windings 6 typically three stator windings 6 are provided to form a 3-phase system.
  • a rotor 1 Inside the generator sits a rotor 1 with a rotor winding 7, which is arranged concentrically to the axis of rotation RA of the drive shaft 4 and which serves as a field winding of the generator.
  • the drive shaft 4 is usually driven by a V-belt, which is a pulley on the
  • Rotation axis RA rotates, it induces AC voltage in the stator windings 6 (these stator windings 6 are hereinafter referred to as phase windings 6).
  • phase windings 6 are hereinafter referred to as phase windings 6.
  • the field winding 7 builds on the ends of the jaws 9
  • North Pole Np and South Pole Sp on. Due to the staggered arrangement of the two claw pole halves, north poles Np and south poles Sp alternately form on the rotor 1, as shown schematically in FIG. 1A.
  • phase windings 6 which are connected together either to a stator circuit in a circular or star configuration, can
  • the rectifier can be connected to the rectified current contributions of the individual phase windings 6, e.g. to feed a vehicle battery.
  • Fig. 1B shows an exemplary current characteristic of such
  • Klauenpolgenerators wherein the current is plotted in ampere A on the speed in rpm of the drive shaft 4 of the generator. Since the drive shaft 4 is typically driven by a ratio, it rotates faster than the engine by the ratio factor.
  • Translation of 3 corresponds to an idle speed n L of the engine of about 633 rpm.
  • n * i_ the generator shown supplies only a current of approximately 48A, which corresponds to only about 40 percent of the maximum current of about 125A.
  • claw pole generators which are mentioned here by way of example only as an example, are relatively small and light and they also have a good
  • the motor for rotating the alternator has to apply all the more mechanical power, the more electric power an alternator on the output side, e.g. to a vehicle battery B and / or to electrical consumers in the
  • this machine should be able to deliver a high maximum current with reduced loss.
  • a machine is provided with a variable speed drivable shaft, which includes a common rotor which is coupled to the shaft.
  • the machine has a first m-phase Stator circuit comprising m phase windings, which are connected in series electrically connected to a circle, each between two
  • the machine comprises at least a second m-phase stator circuit which has m phase windings.
  • the m phase windings of the second m-phase stator circuit are
  • Output node is designed for deriving an AC contribution, or they are connected to a star, each per coil, an output node for deriving an AC contribution is formed.
  • the machine of the invention is further characterized in that m is an integer greater than or equal to 2,
  • both stator circuits are magnetically excitable by the common rotor
  • phase windings of the first m-phase stator circuit have a first number of turns and the phase windings of the second m-phase
  • Stator circuit have a second number of turns, and wherein
  • the first number of turns is greater than the second number of turns.
  • the 2 * m current contributions in all embodiments circuit technology (eg, by the use of a downstream rectifier device) combined into a single total dc.
  • circuit technology eg, by the use of a downstream rectifier device
  • the invention is based on the recognition that the losses of a generator can be significantly reduced when the number of turns is reduced. On the one hand, a coil with a small number of turns has a shorter one
  • embodiments of the invention are therefore preferred that have numbers of turns, which are in the range between 4 and 7.
  • phase winding / s with reduced number of turns, in addition to the disadvantage of reduced at low speeds voltage, but above all the advantage of significantly reduced losses, as indicated above.
  • a low-winding phase winding provides high power, especially in the medium speed range. This aspect may be important, since such a machine should be particularly powerful in modern vehicles, especially in the mid-engine speed range (e.g., between 1 000 and 3 000 rpm).
  • a machine which comprises at least two stator circuits with different phase windings, wherein these two stator circuits differ at least due to different numbers of turns of their phase windings. It is therefore here also the concept of asymmetric windings or the
  • each of the m phase windings can be designed for a different power development as a function of time or speed.
  • the machine of the invention in all embodiments comprises a rectifier device, the loss and
  • the combination of machine and rectifier device has a particularly good response even at low speeds.
  • Speed range (at the drive shaft of the machine) of e.g. 1,500 rpm to 22,000 rpm, reliable and stable.
  • a fast-response variable speed engine for providing a suitable DC voltage (e.g.,> 14.5V) and a high DC current (e.g.,> 100A).
  • a rectifier device is used, which is constructed as an analog circuit that it switches at the zero crossing of the AC voltage.
  • the rectifier device should be loss and voltage optimized to
  • a rectifier device is used, which has been optimized for loss, in order to make better use of the energy that is provided by the stator windings of the stator circuits.
  • rotationally driven permanent magnet or the rotationally driven exciter winding a rotating excitation field that induces AC voltages and AC currents in the phase windings of all the stator circuits.
  • a machine of the invention can easily so
  • a vehicle equipped with a machine of the invention can feed several electrical consumers of the vehicle even at low speeds (for example, at the idle speed of the engine) without the vehicle
  • the invention is especially suitable for slowly rotating
  • Engines such as diesel engines to deliver high currents even at low speeds.
  • the invention is suitable inter alia for use with a
  • Claw pole generator which serves as a generator of a vehicle and which is mechanically rotated by the vehicle engine.
  • the invention can be applied to Vollpolgeneratoren and on
  • the invention can be applied to self-excited generators, in which the excitation DC current, which is used to power the field winding, is derived from one or more of the rectified currents of the phase windings.
  • the machine of the invention is particularly suitable for island operation, in which the generator of the machine with at least one
  • the invention is not limited to pot generators, e.g.
  • the output voltage provided by a low speed engine of the invention may be less than the rated voltage (e.g., an on-board voltage of 14.5V of a vehicle). Such a lower voltage is therefore unusable, e.g. to feed the electrical system.
  • the rectifier device can be extended by a transformer circuit which is able to up-convert the voltage before it enters the vehicle electrical system.
  • FIG. 1A is a sectional view of a part of a claw pole generator of FIG. 1A
  • Fig. 1B shows an exemplary current characteristic of such
  • Fig. 2A shows a highly schematic representation of a first
  • Phase windings wherein each two of the phase windings have 4 turns and two phase windings each have 6 turns;
  • FIG. 2B shows a first electrical equivalent circuit of the generator of FIG.
  • FIG. 2C shows a second electrical equivalent circuit of the generator of FIG.
  • Fig. 3A shows a highly schematic representation of a second
  • Phase windings each three of the phase windings having 4 turns and three of the phase windings each having 6 turns;
  • FIG. 3B is an electrical equivalent circuit diagram of the generator of FIG. 3A;
  • Phase windings with 6 turns each to a stator circuit with
  • Fig. 4 shows a schematic perspective view of another machine of
  • FIG. 5 shows a schematic section of the stator of another
  • Winding wires is filled
  • FIG. 6 shows the current characteristic of a generator based on the principle of FIG.
  • Fig. 7 shows details of another machine of the invention, the two
  • variable-speed rotary drive 110 is here that part or are here those parts of a generator G referred to, which are rotationally driven from the outside.
  • the variable speed rotary drive 110 may be e.g. a pulley 3 and a drive shaft 4 (see Fig. 1A).
  • the rotary drive 110 may be designed and / or arranged differently in all embodiments of the invention than shown in Fig. 1A.
  • the word "variable speed" is used here to emphasize that the speed given by the rotary drive 110 to the generator G may change, for example, if the machine 100 is connected to the crankshaft of a vehicle engine via a belt drive, for example the speed at the generator G is linearly proportional to the speed of the vehicle engine, and speeds which relate to the generator G are marked with an asterisk * in order to be able to differentiate them from the speeds at the vehicle engine, for example n L represents the idling speed of the engine Vehicle engine, whereas n * L stands for the corresponding idle speed at the generator G.
  • n L represents the idling speed of the engine Vehicle engine
  • n * L stands for the corresponding idle speed at the generator G.
  • the speeds at the vehicle engine can be converted by multiplying it into the speeds at the generator G.
  • variable speed also implies that the machine 100 must be specially designed throughout
  • Speed range (eg, from idle n * L up to a maximum speed n * ma x at the generator G) to operate reliably and thermally stable.
  • a rectifier device 20 is used, such. B. shown in Fig. 7.
  • the generator G comprises in all embodiments at least two stator circuits, which are designated here by G1 and G2.
  • Stator circuits Gl, G2 feed several phase-shifted
  • Rectifier circuit 40 Rectifier circuit 40. r rectifier device 20 is processed and rectified, such. shown in Fig. 7.
  • the residual ripple can in all embodiments e.g. be smoothed by an optional low pass filter 30 on the output side of the rectifier device 20, e.g. shown in Fig. 7.
  • Fig. 2A the example of a first devispolgenerators G is shown in the form of a claw pole generator. In the plan view shown, it can be seen how alternately the individual claws of the rotor 1 engage with each other.
  • the excitation winding 7, which is part of the rotor 1, can not be seen in FIG. 2A.
  • the excitation winding 7 is supplied with a direct current, e.g. above
  • Slip rings 8 (as shown in Fig. 1A shown) is supplied and it is built
  • ⁇ ( ⁇ ) stands for the time-variable angular velocity.
  • the time variability results from varying the speed, e.g. of the vehicle engine when accelerating from the idle gas (with the
  • the magnetic field lines of the rotor 1 enforce all
  • stator windings 6 Windings of the stator 5 (called stator windings 6 or phase windings 6.m) and induce in each of the phase windings 6.m one
  • m is an integer> 2 in all embodiments.
  • stator 5 preferably comprises in all embodiments an iron core (eg.
  • a magnetic circuit mK which is shown in Fig. 2A only hinted by a dashed circle.
  • stator 5 there are always several on the stator 5
  • Phase windings (eg 6.1, 6.2, 6.4, 6.5) are present, these being Phase windings are each arranged angularly offset from each other.
  • the angular offset between two adjacent phase windings eg between the phase winding 6.1 of the first stator circuit Gl and the phase winding 6.4 of the second stator G2 each 90 degrees and the angular offset between two phase windings of a stator (eg between the phase windings 6.1 and 6.2 the stator circuit Gl) is 180 degrees.
  • the machine 100 comprises two stator circuits Gl, G2, which are magnetically and mechanically coupled but electrically / galvanically isolated.
  • the machine 100 can be at all
  • Embodiments also include more than two stator circuits Gl, G2.
  • Stator circuits (for example, the two stator circuits Gl and G2) are arranged on or on a stator 5, wherein these stator circuits are magnetically excited by a common rotor 1.
  • phase windings synchronously magnetically (in the case of a generator G with permanent magnet) or synchronously electro-magnetically excited (in the case of a generator G with current-fed excitation winding on the rotor 1). Either generates the rotationally driven
  • the number of pole pairs p of the rotor 1 and the number of revolutions of the rotor 1 per unit time have a directly proportional influence on the frequency of the alternating voltages or alternating currents which at the corresponding (output) node kl, k2, k3, etc., of the phase windings 6.m.
  • Fig. 2A is the
  • Pole pair number p 5.
  • the poles of the rotor 1 are denoted by Np for magnetic north pole and Sp for magnetic south pole Sp.
  • Phase windings 6.1, 6.2 which are connected in series electrically to a circle, as can be seen in Fig. 2B and 2C.
  • Phase windings are also provided with the reference symbols R, S and T, as is customary in three-phase systems.
  • An index is used to indicate the number of turns of a phase winding.
  • the circuit is referred to as the parallel connection of two phase windings (see, for example, the stator circuit Gl in FIGS. 2B and 2C).
  • Delta connection also called a delta or three-wire system
  • a circuit comprising three phase windings (see, for example, the stator circuits Gl and G2 in Fig. 3B).
  • An m-corner circuit is also considered as a circle comprising m phase windings.
  • Stator circuit G2 connected in series.
  • Such a series connection is regarded as a degenerate star connection, the star having only two beams.
  • the neutral point Stp does not have to be led to the outside in the stator circuit G2 of FIG. 2C.
  • a classic star connection like this from
  • Three-phase generators has three beams with e.g. one each
  • an output node Depending on the wiring of the stator circuits Gl, G2, there are different output nodes, which are designated here by kl, k2, k3, etc.
  • the output nodes in stator circuits of the invention are points or locations on the phase windings designed to remove AC currents.
  • an output node may e.g. be the open end of a winding wire connected to a solder point or a terminal.
  • the output nodes kl, k2, k3, etc. are electrically connected to (supply) nodes al, a2, a3, etc. of the rectifier circuits 40, r (see FIG. 7).
  • an output node k1, k2, k3, etc. designed to derive an AC contribution I.I (t), I.2 (t), I.3 (t), etc., is in each case between two consecutive ones Phase windings 6.m. Examples of this can be seen, for example, in FIGS. 2B, 2C and 3B.
  • the circuit becomes a parallel connection of the phase windings R 6 and Se.
  • this circle becomes a triangle with the phase windings Re, Sö and Je.
  • Fig. 3B a preferred embodiment is shown, which in the case of the first stator circuit Gl per leg of the delta connection one each
  • the m phase windings 6.4, 6.5, 6.6 of the second m-phase stator circuit G2 can be connected either to a circuit or to a (degenerate) star. It should be noted that the second
  • Phase windings R4 and S 4th In Fig. 2C from the star a series circuit of the phase windings R4 and S4. In FIG. 3B, the circle becomes a triangle with the phase windings R 4 , S 4 and T 4 .
  • Parallel connection of three phase windings includes.
  • the corresponding number of winding wires can be uniformly accommodated in 72 slots 10 of a stator 5 , These numbers are to be understood as an example.
  • Permanent magnets are generated magnetically, instead of being generated electro-magnetically by means of a field winding 7, since both generate a temporally constant magnetic field.
  • variable speed rotary drive 110 e.g., in the form of a mechanically rotary drive shaft 4
  • Stator circuits Gl, G2 includes.
  • the machine 100 of the invention comprises a rotor 1 coupled to the rotary drive 110 (permanently excited or
  • stator 5 DC-excited and a stator 5, which in turn carries the at least two m-phase stator circuits Gl, G2.
  • phase windings 6.1, 6.2, 6.4, 6.5 in Fig. 2A and the phase windings 6.1 to 6.6 in Fig. 3A is purely schematic.
  • the individual winding strands of the phase windings are typically different than shown in FIG. 2A and FIG. 3A.
  • Fig. 4 is indicated by a schematic representation that the winding wires of the phase windings are meandering through grooves 10 of the stator 5 are performed.
  • the grooves 10 extend parallel to the axis of rotation RA.
  • Only a short part of a winding wire 11 of a phase winding is shown.
  • the end of the winding is guided radially outwards and can serve as output node kl of the phase winding, for example.
  • the winding wire 11 extends in a groove 10 parallel to the rotation axis RA down (section 11.
  • the drive shaft 4 which here rotatably drives the rotor 1, indicated schematically.
  • the drive shaft 4 serves as a rotary drive 110.
  • a plurality of phase windings are present on the stator 5 according to the invention, which are each arranged angularly offset from each other, several winding wires run through each of the grooves 10.
  • Fig. 5 the section of another stator 5 is shown by way of example. There are several grooves 10 can be seen. In one of the grooves 10, for example, a plurality of parallel winding wires can be seen. In total, twelve extend here
  • the machine 100 comprises a rectifier device 20 having 2 times m rectifier circuits 40. r, such. B. shown in Fig. 7.
  • a rectifier device 20 having 2 times m rectifier circuits 40. r, such. B. shown in Fig. 7.
  • Each of the m phases of the first stator circuit Gl and each of the m phases of the second stator circuit G2 is each assigned to one of the 2 times m rectifier circuits 40. r.
  • the stator circuits Gl, G2 of the machine 100 are preferably designed in all embodiments as a rotating field machines, which are penetrated by a common, rotating exciter field. That the
  • At least two stator circuits Gl, G2 are mechanically and magnetically linked together.
  • a phase winding 6.m with a high number of turns w.m is not able to supply such high maximum currents as a phase winding 6.m with a lower number of turns w.m;
  • the filling factor of the grooves 10 in / on the stator 5 should be the same as possible in all grooves along the stator circumference;
  • phase winding 6.m are preferably arranged meander-shaped on the stator 5 (see, for example, FIG.
  • Winding wires 11 through which high currents flow should have the highest possible electrical conductivity (therefore they are made, for example, from high-purity copper wire);
  • phase winding 6 .m with small winding number w. 2 causes a lower groove flooding than a phase winding 6 .m with large winding number w. l. This results in namely lower losses in the winding wire.
  • the phase winding 6 .m with small winding number w. 2 causes a lower groove flooding than a phase winding 6 .m with large winding number w. l. This results in namely lower losses in the winding wire.
  • an angular offset is required between the phase windings 6.m of the first stator circuit Gl and the phase windings 6.m of the second stator circuit G2 so that the alternating voltages can be rectified separately (eg in a common rectifier device 20);
  • the output side of the stator circuits Gl, G2 a rectifier device 20 is provided, the z. B. diodes Dl, D2 and / or field-effect transistors (FETs) comprises;
  • Number of turns w. l is preferably always connected as a circle constellation (see FIGS. 2B, 2C, 3B);
  • Winding number w.2 can be a circle constellation (see FIGS. 2B, 3B) or
  • Transformation circuit 31 may be arranged to transform the voltage upward (in Fig. 7 as an optional circuit block indicated).
  • all embodiments of the invention have a
  • Rectifier device 20 which comprises low threshold voltage diodes and / or FETs. These FETs, if present, are preferably so analogously driven in all embodiments of the invention by a circuit that the FETs are already close to the Zero crossing of the output voltages (AC voltages) at the nodes of the stator circuits Gl, G2 switch.
  • Phase winding 6.m two or more than two windings are connected in parallel (see for example Fig. 3B).
  • a êtpolgenerator G which has a rotor 1 with a rotor winding, which serves as a field winding.
  • M 3 phase windings 6.1, 6.2 and 6.3 are provided on the common stator, which are part of a first stator circuit Gl.
  • the phase windings 6.1, 6.2 and 6.3 all have a number of turns w.
  • m 3 phase windings 6.4, 6.5 and 6.6, which are part of a second stator circuit G2, are provided on the common stator.
  • Machine 100 of the invention shown schematically.
  • the direct current is applied across the speed of the drive shaft 4 of the machine 100. It was assumed that a ratio of 1: 2.5 between the crankshaft of the engine and the drive shaft 4. One can therefore convert the speeds shown in Fig. 6 into corresponding engine speeds by dividing the values by 2.5.
  • the current characteristic Sk ges of the total current I tot is obtained by adding the two current characteristics Sk. L and Sk.2 of the two current contributions.
  • Stator G2 provide a higher power contribution.
  • the current characteristic Sk. L of the stator circuit G2 has a significantly greater slope here.
  • the current characteristic Sk.2 of the stator circuit Gl has a lower slope here. This means that the current characteristic Sk.2 of the first stator circuit Gl already starts to deliver a current contribution at lower speeds (with n ⁇ 2 ⁇ 00 rpm).
  • stator circuits Gl, G2 of the machines 100 can be advantageously made technically usable especially in a machine 100 when the stator circuits Gl, G2 of the machines 100 comprise a rectifier device 20 food, which is designed to avoid an electrical short circuit between the m phase windings with different number of turns. Therefore, in all embodiments, diodes and / or analogously connected FETs are preferably used here.
  • the rectifier device 20 should be designed so efficient and low loss, that the early response of the first
  • Statorscaria G can make usable at all. Therefore, the diodes (e.g., Dl, D2) and / or FETs of the rectifier device 20 connected in an analogous manner should be voltage-optimized.
  • a rectifier device 20 is used, which is constructed as an analog circuit so that it switches at the zero crossing of the AC voltages.
  • diode rectifiers which have a series connection of, for example, two silicon diodes per phase
  • diode rectifiers which have a series connection of, for example, two silicon diodes per phase
  • here are per phase either at least one FET (field-effect transistor) and at least one diode or per phase either at least two FETs (field-effect transistors) provided.
  • each of the r rectifier circuits 40.r comprises in all embodiments:
  • a feed node al a2, a3, a4, a5, a6, which is connected to the output node k1, k2, k3, k4, k5, k6 of the corresponding phase winding 6.1, 6.2, 6.3, 6.4, 6.5, 6.6,
  • each of the r rectifier circuits 40.r comprises in all embodiments:
  • a feed node al a2, a3, a4, a5, a6, which is connected to the output node k1, k2, k3, k4, k5, k6 of the corresponding phase winding 6.1, 6.2, 6.3, 6.4, 6.5, 6.6,
  • a diode D 1 arranged between the supply node a 1, a 2, a 3, a 4, a 5, a 6 and an upper potential point V +,
  • At least one field effect transistor (not shown), which is arranged between the supply node al, a2, a3, a4, a5, a6 and a lower potential point V-.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)
  • Synchronous Machinery (AREA)

Abstract

L'invention concerne une machine (100) comprenant - un arbre (RA) entraînable à vitesse de rotation variable, - un rotor commun (1) accouplé à l'arbre (RA), - un premier circuit de stator à m phase comportant m enroulements de phase (6.1, 6.2) qui sont reliés électriquement en série de manière à former un cercle, un nœud de sortie destiné à dériver un apport de courant alternatif étant formé à chaque fois entre deux enroulements de phase successifs (6.1, 6.2), - un deuxième circuit de stator à m phases comportant m enroulements de phase (6.4, 6.5) o qui sont reliés électriquement en série de manière à former un cercle, un nœud de sortie destiné à dériver un apport de courant alternatif étant formé à chaque fois entre deux enroulements de phase successifs (6.4, 6.5), ou o qui sont reliés de manière à former une étoile, un nœud de sortie destiné à dériver un apport de courant alternatif étant formé pour chaque bobine (6.4, 6.5), - m étant un nombre entier supérieur ou égal à 2, - les deux circuits de stator étant magnétiquement excitables par le rotor commun (1), - tous les enroulements de phase (6.1, 6.2) du premier circuit de stator à m phases ayant un premier nombre d'enroulements et tous les enroulements de phase (6.4, 6.5) du deuxième circuit de stator à m phases m ayant un deuxième nombre d'enroulements, et - le premier nombre d'enroulements étant supérieur au deuxième nombre d'enroulements.
PCT/EP2017/073326 2016-09-18 2017-09-15 Machine comportant un entraînement à vitesse de rotation variable pour produire un courant continu Ceased WO2018050846A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16189371.4 2016-09-18
EP16189371 2016-09-18

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109062205A (zh) * 2018-07-26 2018-12-21 武汉水草能源科技研发中心(有限合伙) 人工智能汽车无人驾驶系统
US20230088809A1 (en) * 2021-09-21 2023-03-23 Honda Motor Co., Ltd. Power supply circuit and rotary electric machine system
US20240388156A1 (en) * 2023-05-19 2024-11-21 GM Global Technology Operations LLC Electric motor with asymmetric-turn windings and a vehicle having the same

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