WO2007017392A1 - Circuit electrique - Google Patents

Circuit electrique Download PDF

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Publication number
WO2007017392A1
WO2007017392A1 PCT/EP2006/064712 EP2006064712W WO2007017392A1 WO 2007017392 A1 WO2007017392 A1 WO 2007017392A1 EP 2006064712 W EP2006064712 W EP 2006064712W WO 2007017392 A1 WO2007017392 A1 WO 2007017392A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit arrangement
electrical circuit
electrical
voltage source
voltage
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/EP2006/064712
Other languages
German (de)
English (en)
Inventor
Hans-Dieter Heining
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 WO2007017392A1 publication Critical patent/WO2007017392A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H02P31/00—Arrangements for regulating or controlling electric motors not provided for in groups H02P1/00 - H02P5/00, H02P7/00 or H02P21/00 - H02P29/00

Definitions

  • the invention relates to an electrical circuit arrangement comprising at least a choke coil, the choke coil is depending ⁇ wells connected in series to a part of the electrical circuit arrangement.
  • Electrical circuit arrangements for the power supply of electrical machines usually include inductors in order to equalize the current flowing through them or to reduce harmonics in the stream or to reduce network perturbations.
  • the choke coils are usually switched directly after the voltage source. They are followed by rectifiers, which convert the AC voltage into a DC voltage, which is led in a voltage intermediate circuit. While an inverter is fed by Zvi ⁇ intermediate circuit, which supplies an electric machine with power.
  • Electric machines are used in many technical fields. For AC-powered electrical machines, a distinction must be made between AC machines and three-phase machines. Three-phase machines can be divided into three-phase synchronous machines and three-phase asynchronous machines.
  • the invention is therefore an object of the invention to provide an elekt ⁇ cal circuit arrangement with at least one choke coil and a fan motor, are saved in the cost.
  • the choke coil is part of an electric machine, wherein the electric machine has a stator and a rotatably mounted rotor and wherein the choke coil is mounted either in the stator or on the rotor and thus to the torque in the electric machine contributes.
  • a further advantageous embodiment results when the electric machine is a synchronous motor, asynchronous motor or reluctance motor and is used as a fan motor for the electrical circuit arrangement to cool them. That is, different types of motors can be used to use coils in the corresponding motor as inductors. Since an electrical circuit produces waste heat, it is therefore advantageous to watch a fan motor before ⁇ whose motor coils are also used as inductors. Furthermore, the fan motor can also be assigned to at least one further electrical machine in order to cool it.
  • a further advantageous Ausgestal ⁇ tung obtained when the circuit arrangement in a further electrical machine is installed and the fan motor is provided to cool the circuit arrangement and / or the WEI direct electrical machines.
  • the inductors are advantageously used to smooth the current flowing through them.
  • the voltage source is advantageous voltage source as a removable clamping ⁇ or three-phase voltage source is designed and has at least one phase. It is particularly advantageous if a separate throttle ⁇ coil is provided for each phase of the power source, which are integrated in an electric machine, such as a fan motor. This reduces repercussions in all three phases.
  • Each choke coil is connected at one end to a phase of clamping ⁇ voltage source. That is, the choke coils are directly to the voltage source and thus effectively prevent repercussions of the electrical circuit arrangement in the voltage source.
  • Each choke coil is connected at the other end to a portion of the electrical circuitry.
  • the inductors are thus connected in series with a part of the electrical circuit arrangement.
  • the part of the elec ⁇ cal circuit arrangement includes at least one rectifier, each choke coil is connected at one end to a respective terminal of the rectifier, so that the current flowing through the inductors current is rectified.
  • a voltage intermediate circuit is connected, wel ⁇ cher leads approximately a DC voltage, or this buffers by means of, for example, at least one capacitor.
  • an inverter is connected, which inverts the DC voltage into an AC voltage.
  • another electrical ma machine which is supplied with power by the inverter.
  • a second advantageous embodiment results when it is possible to feed back into the voltage source.
  • an inventive electrical circuit ⁇ arrangement with inductors, which supplies a further e- lectric machine with power, but which also allows a feeding back into the voltage source when the other electric machine is driven from the outside.
  • the part of the electrical circuit arrangement contains at least one network-side converter, which can operate as a rectifier and as an inverter.
  • the pulse frequency of the line-side converter for inverter operation is significantly higher, for example, by a factor of 10, as the frequency of the voltage provided by the regenerative power source voltage.
  • the pulses are particularly effect suppresses ⁇ through the choke coils so that a current with an approximately sinusoidal variation in the power source is fed back.
  • each choke coil is connected at one end to a respective connection of the line-side converter.
  • a voltage intermediate circuit is connected, behind which in turn is connected a load-side converter, which can operate as an inverter or as a rectifier.
  • the load-side converter is connected to another electric machine, which is supplied with power by the load-side converter or feeds current into the load-side converter.
  • FIG. 1 shows a schematic diagram of the electrical circuit arrangement according to the invention
  • FIG. 3 shows a second embodiment of the electrical circuit arrangement according to the invention.
  • FIG 1 is a schematic diagram of the inventive circuit arrangement elekt ⁇ step 10, shown is the voltage ⁇ source 1, which has three phases to the terminals. 2
  • the terminals 2 are each connected to one end 3 of the choke coils 5.
  • the respective other end 4 of the choke coils 5 is connected to the contacts 8 of the part 9 of the electrical circuit arrangement 10.
  • the inductors 5 are located in the stator 6 of an electric machine 17, which also has a rotatable rotor, not shown here.
  • the throttle coils 5 are placed on the teeth 7 of the stator 6 or wound around the teeth or introduced in any other way in the stand.
  • Each choke coil 5 may also consist of a series connection of partial windings or partial coils. These partial windings or partial coils may for example be attached to different teeth 7 of the stator 6.
  • the electric circuit 10 is supplied with power from the voltage source 1, then the current of the voltage source first flows through the choke coils 5, which are fastened to the stator 6 of the electric machine 17, and then continues to part 9 of the electrical circuit arrangement 10.
  • the inductors 5 smooth out the current flowing through them and reduce network feedback with harmonics. Characterized in that the choke coils are mounted in the stator 6 of the electric machine 17, a torque is generated in the electric machine 17, when the choke coils 5 are flowed through by electricity.
  • the electric machine 17 is set as a fan motor ⁇ to the electric circuit arrangement 10 to cool.
  • FIG. 2 shows a first imple mentation of the electrical circuit arrangement according to the invention. Shown is the voltage source 1, which has three phases with the terminals 2. The terminals 2 are each connected to the choke coils 5. The inductors 5 are in turn connected to a rectifier 11, which is composed, inter alia, of diodes. The purpose of the rectifier 11 is to rectify the input voltages, so that approximately a DC voltage results at the output of the rectifier 11. To the DC voltage intermediate circuit ⁇ hopper 11 is connected 12, which approximately performs a DC voltage. Intentszwi- intermediate circuit 12, a capacitor may be as shown maral ⁇ tet to the voltage to smooth further and buffer.
  • the voltage intermediate circuit 12 is followed by an inverter 13 which switches the DC voltage guided in the voltage intermediate circuit 12 into an AC voltage in order to supply a connected electric machine 14 with current.
  • the inverter 13 is constructed, among other things, of IGBTs and diodes, as shown in FIG.
  • material for the Leis ⁇ tung semiconductor thereby may silicon or silicon carbide (SiC) are used.
  • the alternating current thus flows through the choke coils 5, which are advantageously located in a fan motor and, if they are traversed by current, contribute to the torque of the fan motor.
  • the noise coils 5 smooth the current flowing through them and reduce network perturbations.
  • the rectifier 11 connected to the choke coils 5 rectifies the voltage applied to the output of the choke coils 5. This voltage is performed by the voltage intermediate circuit 12 and optionally further smoothed.
  • the inverter 13 converts the voltage carried in the voltage intermediate circuit 12 into an alternating voltage, in order, for example, to operate an electric machine 14 optimally.
  • the rectifier 11 can be used as a section the electrical circuit are understood, as well as the inverter 13th
  • FIG. 3 shows a second embodiment form of the electrical circuit arrangement according to the invention. Shown is the voltage source 1, which has three phases with the terminals 2. The terminals 2 are each connected to the choke coils 5. The inductors 5 are in turn connected to a power converter 15 on the power side, which can operate as a rectifier and as an inverter and which is composed, inter alia, of diodes and IGBTs. As a material for the power semiconductor can in this case silicon or silicon carbide (SiC) is ⁇ be set. At the network-side power converter 15 voltage intermediate circuit 18 is connected, which leads approximately a DC voltage. In the voltage intermediate circuit 18, a capacitor may also be connected as shown in order to further smooth the voltage.
  • SiC silicon carbide
  • the voltage intermediate circuit 18 is followed by a load-side power converter 16, which can operate as an inverter or as a rectifier.
  • a load-side power converter 16 On the load-side converter 16, an electric machine 19 is connected, which can also work as a generator.
  • the load-side converter is made of IGBTs and diodes, among other things, as shown in FIG. Silicon or else silicon carbide (SiC) can be used as material for the power semiconductors.
  • the electrical circuit arrangement according to FIG. 3 can be operated in two forms.
  • the electric machine 19 is supplied with power by the electrical circuit arrangement.
  • the alternating current thus flows through the choke coils 5, which are advantageously located in a fan motor and, if they are traversed by current, contribute to the torque of the fan motor.
  • the inductors 5 smooth the current flowing through them and reduce network feedback.
  • the connected to the choke coils 5 power converter 15 rectifies the voltage applied to the output of the choke coils 5 equal. This voltage is taken from the voltage inter- circle 18 out and possibly further smoothed.
  • the load-side power converter 16 converts the voltage carried in the voltage intermediate circuit 18 into an alternating voltage in order, for example, to operate an electrical machine 19 optimally.
  • the electric machine 19 is operated as a generator.
  • the voltage applied to the electric machine 19 voltage is rectified by the load-side converter 16 and guided by the voltage intermediate circuit 18 and optionally smoothed and buffered.
  • the guided from the voltage intermediate circuit voltage is then inverted by the network-side converter 15 into an AC voltage.
  • the thereby caused by the pulse frequency of the inverter harmonics and voltage peaks in the current flowing in the voltage source 1 are thereby reduced by the choke coils 5 and the stream is smoothed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un circuit électrique (10) comprenant une bobine de self (5), chaque bobine de self étant couplée en série avec une partie (9) du circuit électrique (10). La bobine de self (5) fait partie d'une machine électrique (17). La machine électrique (17) présente un stator (6) et un rotor monté rotatif. La bobine de self (5) est montée soit dans le stator (6) ou sur le rotor et contribue ainsi à la production de couples dans la machine électrique.
PCT/EP2006/064712 2005-08-08 2006-07-27 Circuit electrique Ceased WO2007017392A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510037371 DE102005037371A1 (de) 2005-08-08 2005-08-08 Elektrische Schaltungsanordnung
DE102005037371.2 2005-08-08

Publications (1)

Publication Number Publication Date
WO2007017392A1 true WO2007017392A1 (fr) 2007-02-15

Family

ID=37192399

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/064712 Ceased WO2007017392A1 (fr) 2005-08-08 2006-07-27 Circuit electrique

Country Status (2)

Country Link
DE (1) DE102005037371A1 (fr)
WO (1) WO2007017392A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19617947C1 (de) * 1996-05-04 1997-07-03 Braun Ag Schaltungsanordnung zum Betreiben eines Elektromotors
US5942864A (en) * 1995-02-17 1999-08-24 Sgs-Thomson Microelectronics S.A Control device for a variable speed electric motor
WO2006018599A1 (fr) * 2004-08-19 2006-02-23 Kenwood Limited Reduction d'ondulations a l'aide d'un filtre comprenant un condensateur et une reactance inductive d'un moteur a induction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4107391A1 (de) * 1991-03-08 1992-09-10 Abb Patent Gmbh Elektrofahrzeug mit mindestens einem batteriegespeisten wechselrichter
DE10342049A1 (de) * 2003-09-11 2005-05-04 Siemens Ag Verfahren und Vorrichtung zur Steuerung eines einen Haupt- und Nebenmotor speisenden Umrichters

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5942864A (en) * 1995-02-17 1999-08-24 Sgs-Thomson Microelectronics S.A Control device for a variable speed electric motor
DE19617947C1 (de) * 1996-05-04 1997-07-03 Braun Ag Schaltungsanordnung zum Betreiben eines Elektromotors
WO2006018599A1 (fr) * 2004-08-19 2006-02-23 Kenwood Limited Reduction d'ondulations a l'aide d'un filtre comprenant un condensateur et une reactance inductive d'un moteur a induction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LEVI E ET AL: "Modeling and control of a five-phase series-connected two-motor drive", IECON-2003. PROCEEDINGS OF THE 29TH. ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY. ROANOKE, VA, NOV. 2 - 6, 2003, ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, NEW YORK, NY : IEEE, US, vol. VOL. 3 OF 3. CONF. 29, 2 November 2003 (2003-11-02), pages 208 - 213, XP010691916, ISBN: 0-7803-7906-3 *

Also Published As

Publication number Publication date
DE102005037371A1 (de) 2007-02-22

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