WO1992007406A1 - Moteur electrique exploite avec un convertisseur de puissance ayant un enroulement de stator commutable a phases multiples - Google Patents

Moteur electrique exploite avec un convertisseur de puissance ayant un enroulement de stator commutable a phases multiples Download PDF

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Publication number
WO1992007406A1
WO1992007406A1 PCT/DE1991/000780 DE9100780W WO9207406A1 WO 1992007406 A1 WO1992007406 A1 WO 1992007406A1 DE 9100780 W DE9100780 W DE 9100780W WO 9207406 A1 WO9207406 A1 WO 9207406A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
phase
switching element
subsystems
machine according
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/DE1991/000780
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German (de)
English (en)
Inventor
Herbert Auinger
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO1992007406A1 publication Critical patent/WO1992007406A1/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
    • H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
    • H02J7/14—Circuit arrangements for charging or discharging batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
    • H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
    • H02J7/1484—Regulation of the charging current or voltage otherwise than by variation of field by commutation of the output windings of the generator
    • 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

Definitions

  • the invention relates to a multi-phase machine connected to a converter according to the preamble of claim 1.
  • a multi-phase machine is known from DE-A-23 52 227. With this machine, all branches of the individual phases can either be connected in series or in parallel.
  • the invention has for its object to further develop an electrical machine of the generic type so that much less switching contacts or switching bridges are required for switching the winding and that further the adjustment of the voltage achieved not only in the ratio l: c, but also in deviating, in particular corresponding smaller levels is possible.
  • a changeover according to claim 3 requires the smallest possible number of changeover connection points and contact bridges. From the individual winding subsystems permanently connected in a star or polygon connection, a different-phase connection point is guided to the switching element and combined to form a common system center in one operating stage.
  • FIG. 2 shows the voltage diagram of the stator winding according to FIG. 1 with the switching element switched off and the star connection of the branches
  • FIG. 3 shows the DC voltage curve for the voltage diagram of FIG. 2
  • FIG. 1 shows the voltage diagram of the stator winding according to FIG. 1 with the switching element switched on and the star connection of the branches
  • FIG. 5 shows the voltage curve for the voltage diagram of FIG. A
  • FIG. 6 shows the speed dependence of the current in the various switching states of the switching element in a line diagram
  • FIG. 7 shows the voltage diagram of the stator winding 1 with switched-off switching element and delta connection of the branches
  • 8 shows the voltage diagram of the stator winding according to FIG. 1 with the switching element switched on and delta connection of the branches
  • FIG. 9 shows the voltage diagram of a stator winding with in
  • FIG. 1A shows the voltage diagram of a stator winding consisting of two star-connected partial winding systems if two branch connections of the partial winding systems are connected to one another by means of the switching element
  • FIG. 15 shows the DC voltage curve for the voltage diagram of FIG. 1A
  • FIG. 16 shows the voltage diagram of a stator winding consisting of two delta-connected partial winding systems with the switching element switched off
  • FIG. 17 shows the voltage diagram of a stator winding consisting of two delta-connected partial winding systems, if two branch connections of each partial winding system are connected to one another by means of the switching element
  • FIG. 18 shows a further connection variant of two branch connections in the case of an alternating winding consisting of two partial winding systems connected in a star
  • FIG. 20 shows the voltage diagram of a stator winding consisting of four star-connected partial winding systems with the switching element switched off
  • FIG. 21 shows the voltage diagram of a stator winding consisting of four star-connected partial winding systems with the switching element switched on
  • FIG. 22 shows the DC voltage curve for the voltage diagram of FIG. 21
  • FIG. 23 2A shows the voltage diagram of a stator winding consisting of four partial winding systems connected in a triangle with the switching element switched off
  • FIG. 2A shows the voltage diagram of a stator winding consisting of four partial winding systems connected in a triangle with the switching element switched on
  • FIG. 8 shows the voltage diagram of a stator winding consisting of four partial winding systems connected in a triangle with the switching element switched on
  • FIG. 25 shows the voltage diagram of a further stator winding consisting of four star-connected partial winding systems with the switching element switched off
  • FIG. 26 shows the voltage diagram of a further stator winding consisting of four star-connected partial winding systems with the switching element switched on
  • FIG. 28 shows the voltage diagram of a stator winding consisting of three four-phase partial winding systems connected in a star, with the switching element switched off
  • IG 29 the voltage diagram of a stator winding consisting of three four-phase partial winding systems connected in a star, if two branch connections are connected to each other by means of the switching element
  • IG 30 the voltage diagram of a stator winding consisting of three four-phase partial winding systems connected in polygon with the switching element switched off
  • FIG. 31 the voltage diagram of a stator winding consisting of three four-phase partial winding systems switched in polygon if two switching connections of the partial winding systems are connected to each other by means of the switching element.
  • FIG. 1 denote three three-phase winding subsystems.
  • the winding subsystems 1-3 are arranged coaxially and their branches a are connected in star.
  • Each winding subsystem 1 to 3 is connected to a three-phase rectifier bridge 5 or 7 respectively.
  • the rectifier bridges can consist of controlled or uncontrolled semiconductor elements.
  • a battery 8 is connected to the DC voltage poles +/- of the rectifier bridge 5 to 7.
  • a division into three winding subsystems 1 to 3 is relatively easy to implement. With a six-pole machine you can e.g. assign the coils covering the area of a pole pair to each winding subsystem.
  • a branch connection U3, V2, W1 is routed from each winding subsystem 1 to 3 in a cyclically interchanged phase sequence to a switching element 9 and thus to this switching element.
  • the switching element 9 can consist of a mechanical switch or of semiconductor switching elements. The control of the switching element 9 is speed-dependent.
  • the switching element 9 is switched off.
  • the winding subsystems 1 to 3 are thus separated from one another. It is in phase: parallel operation of the three winding subsystems 1 to 3 with the voltage U, according to the associated voltage diagram in FIG. 2. This results in a six-pulse DC ripple on the DC voltage side of the rectifier bridges 5 to 7, as shown in FIG. 3.
  • the switching element 9 is switched on (operating level II).
  • the phase connections U3, V2, W1 are connected to a common system center.
  • the three winding subsystems 1 to 3 form a six-phase hybrid.
  • the chained voltages U jj of this circuit are doubled compared to the voltages in operating stage I. Since these voltages follow one another at an angular distance of 60 * el., There is again a six-pulse DC voltage ripple (FIG. 5).
  • the current routing in the inner star branches and the outer fork branches and also the commutation conditions are different.
  • the bridge branches of the rectifier bridges 5 to 7 connected to the phase connections U3, V2 and Wl remain currentless in the operating stage II.
  • the diagram in FIG. 6 shows the current profile in the two operating stages I and II as a function of the speed of the machine.
  • the generator is a motor vehicle light machine
  • the switch described the car battery can be charged at the engine idling speed.
  • Such a switchover also achieves an advantageous adaptation to this power curve for wind power plants, the performance of which, in the case of a non-adjustable propeller, increases approximately with P proportional n 3 , as is shown in broken lines in FIG.
  • a triangular connection of the branches of the winding subsystems 1 to 3 can also be selected.
  • operating mode I high speed
  • all winding subsystems are in parallel and the voltage U ,.
  • FIGS. 9 and 10 show circuit variants according to claim A with winding subsystems 1 to 3 connected in star and in delta.
  • s switching element 9 two phase connections of the one winding subsystem 1 or 2 or 3 are connected to a corresponding phase view of the two other winding subsystems.
  • the voltage occurring at the interconnected phase connections U2, V1; V3, W2 and W1, U3 is only half as large in operating mode II as the voltage between the external connections U1, V2, W3.
  • FIG. 11 shows the voltage diagram for two winding subsystems connected in a star for operation at high speed (operating stage I).
  • a delta connection of the winding subsystems 1 and 2 is also possible.
  • the valve opening times of the respective leading valves are 90 * .
  • the two winding subsystems 1 and 2 implemented in star connection are connected to one another at two phase connections in operating stage II.
  • the voltage in operating level II is 3 times the voltage in operating level I. _ ⁇
  • the circuit variant according to claim 6 shown in FIG. 18 can only be carried out with two winding subsystems 1 and 2 connected in a star.
  • the switching element 9 is used to connect diametrical phase connections of one winding subsystem 1 or .2 to the star point of the other winding subsystem 1 5 or .2.
  • the voltages of the two operating stages I and II behave like iJT: 1 approximately 1, 53.
  • the switching element 9 is used to connect each of the three in-phase winding subsystems 2 to 4 in a cyclical sequence with one
  • Phase connection of the winding subsystem 1 connected in mirror image is connected.
  • the result is a six-phase hybrid circuit (FIG. 26), the chained voltage of which has three times the chained voltage of the winding subsystems 1 to A in operating stage I.
  • the electrical phase angles are approximately 38 * and 22 ". This results in an asymmetrical twelve-pulse ripple in the DC voltage (FIG. 27).
  • the stator winding in each case has a total of twelve branches which are arranged electrically offset from one another by 30 * .
  • four branches are connected in a star and according to FIG. 30 in Fygon to form a winding subsystem 1 or 2 or 3.
  • operating mode I FIGS. 28 and 30
  • a symmetrical twelve-pulse ripple of the DC voltage results in both circuits.
  • the three winding subsystems are connected to each other at two phase connections. This creates a six-phase voltage system with electrical phase angles of approx. 42 * and 18 * .
  • the DC voltage has an asymmetrical twelve-pulse ripple.
  • the voltages in the two operating stages I and II behave as 1: 1.93.
  • the individual subsystems can also be connected to one another in the sense of a multi-start polygon circuit (claim 7), thereby achieving a reduced switching ratio.
  • multi-stage switchovers can also be achieved by switching the individual winding subsystems by means of the switching element 9, for example in one stage according to claim 3 and in one 1 further stage according to claim A connected to one another.
  • a circuit according to claim A can generally be carried out in several variants, each with different switching ratios, as a result of which additional switching stages are formed

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Windings For Motors And Generators (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

Un moteur électrique exploité avec un convertisseur de puissance comprend un enroulement de stator commutable à phases multiples qui est subdivisé en systèmes partiels d'enroulement ayant chacun m phases et raccordé à au total a.m. embranchements de pont du convertisseur de puissance connectés en parallèle côté courant continu. La commutation de l'enroulement de stator au moyen d'un nombre relativement réduit de contacts de commutation est possible, étant donné que les systèmes partiels d'enroulement (1-3) sont galvaniquement séparés et rigidement connectés en étoile ou en polygone. Afin de commuter l'enroulement, au moins un point de raccordement de chaque système partiel (1-3) peut être relié à un point de raccordement d'un autre système partiel (1-3) aussi diamétralement opposé que possible, du point de vue de leur relation de phase, au moyen d'un élément commutateur séparé (9).
PCT/DE1991/000780 1990-10-12 1991-10-04 Moteur electrique exploite avec un convertisseur de puissance ayant un enroulement de stator commutable a phases multiples Ceased WO1992007406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4032492.3 1990-10-12
DE19904032492 DE4032492A1 (de) 1990-10-12 1990-10-12 Elektrische maschine fuer stromrichterbetrieb mit einer umschaltbaren, mehrphasigen staenderwicklung

Publications (1)

Publication Number Publication Date
WO1992007406A1 true WO1992007406A1 (fr) 1992-04-30

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PCT/DE1991/000780 Ceased WO1992007406A1 (fr) 1990-10-12 1991-10-04 Moteur electrique exploite avec un convertisseur de puissance ayant un enroulement de stator commutable a phases multiples

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DE (1) DE4032492A1 (fr)
WO (1) WO1992007406A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0740389A1 (fr) * 1995-04-24 1996-10-30 Nippondenso Co., Ltd. Générateur d'énergie
EP0786167A4 (fr) * 1994-10-11 1998-05-20 Coleman Powermate Inc Unite de commande pour generateur a aimant permanent
GB2328093A (en) * 1997-08-01 1999-02-10 Daimler Benz Ag Circuit arrangement for a three-phase alternator for a motor vehicle
US9231447B2 (en) 2013-04-30 2016-01-05 Alstom Technology Ltd Stator winding of an electric generator
US11710991B2 (en) 2020-08-25 2023-07-25 General Electric Company High voltage electric machine equipped with galvanic separators for cascaded voltage stator modularization

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7928592B2 (en) * 2008-06-30 2011-04-19 General Electric Company Wind turbine with parallel converters utilizing a plurality of isolated generator windings
DK177684B1 (en) 2012-12-21 2014-03-03 Envision Energy Denmark Aps Wind turbine having a HTS generator with a plurality of phases

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1030643A (fr) * 1950-10-30 1953-06-16 Dispositif chargeur de bord pour batterie d'accumulateurs de véhicule
FR2510319A1 (fr) * 1981-07-23 1983-01-28 Marelli Autronica Alternateur, en particulier pour automobiles
DE3202958A1 (de) * 1982-01-29 1983-08-11 Siemens AG, 1000 Berlin und 8000 München Dreiphasige wicklung in stern-dreieck-mischschaltung fuer eine elektrische maschine
DE3432127A1 (de) * 1983-09-01 1985-03-21 Mitsubishi Denki K.K., Tokio/Tokyo Gleichstromgenerator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2352227C2 (de) * 1973-10-18 1986-05-28 Robert Bosch Gmbh, 7000 Stuttgart Wechselstromgenerator
IT8253591U1 (it) * 1982-07-30 1984-01-30 Indesit Ind Elettrodomestici Italiana S P A Dispositivo di commutazione di velocita' per un motore elettrico.
JPS6055899A (ja) * 1983-09-01 1985-04-01 Mitsubishi Electric Corp 直流発電装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1030643A (fr) * 1950-10-30 1953-06-16 Dispositif chargeur de bord pour batterie d'accumulateurs de véhicule
FR2510319A1 (fr) * 1981-07-23 1983-01-28 Marelli Autronica Alternateur, en particulier pour automobiles
DE3202958A1 (de) * 1982-01-29 1983-08-11 Siemens AG, 1000 Berlin und 8000 München Dreiphasige wicklung in stern-dreieck-mischschaltung fuer eine elektrische maschine
DE3432127A1 (de) * 1983-09-01 1985-03-21 Mitsubishi Denki K.K., Tokio/Tokyo Gleichstromgenerator

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0786167A4 (fr) * 1994-10-11 1998-05-20 Coleman Powermate Inc Unite de commande pour generateur a aimant permanent
EP0740389A1 (fr) * 1995-04-24 1996-10-30 Nippondenso Co., Ltd. Générateur d'énergie
US5723973A (en) * 1995-04-24 1998-03-03 Nippondenso Co., Ltd. Generating apparatus
GB2328093A (en) * 1997-08-01 1999-02-10 Daimler Benz Ag Circuit arrangement for a three-phase alternator for a motor vehicle
US6005786A (en) * 1997-08-01 1999-12-21 Daimlerchrysler Ag Circuit for an alternator of a motor vehicle and method for controlling the circuit
GB2328093B (en) * 1997-08-01 2000-02-16 Daimler Benz Ag Circuit arrangement for a three-phase alternator for a motor vehicle
US9231447B2 (en) 2013-04-30 2016-01-05 Alstom Technology Ltd Stator winding of an electric generator
US11710991B2 (en) 2020-08-25 2023-07-25 General Electric Company High voltage electric machine equipped with galvanic separators for cascaded voltage stator modularization

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Publication number Publication date
DE4032492A1 (de) 1992-04-16

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