WO2013034313A2 - Machine synchrone à double excitation - Google Patents

Machine synchrone à double excitation Download PDF

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Publication number
WO2013034313A2
WO2013034313A2 PCT/EP2012/003796 EP2012003796W WO2013034313A2 WO 2013034313 A2 WO2013034313 A2 WO 2013034313A2 EP 2012003796 W EP2012003796 W EP 2012003796W WO 2013034313 A2 WO2013034313 A2 WO 2013034313A2
Authority
WO
WIPO (PCT)
Prior art keywords
winding
rotor
synchronous machine
stator
windings
Prior art date
Application number
PCT/EP2012/003796
Other languages
German (de)
English (en)
Other versions
WO2013034313A3 (fr
Inventor
Theresia Heil-Ostovic
Original Assignee
Theresia Heil-Ostovic
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 Theresia Heil-Ostovic filed Critical Theresia Heil-Ostovic
Publication of WO2013034313A2 publication Critical patent/WO2013034313A2/fr
Publication of WO2013034313A3 publication Critical patent/WO2013034313A3/fr

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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/22—Multiple windings; Windings for more than three phases
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/26—Synchronous generators characterised by the arrangement of exciting windings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/26—Synchronous generators characterised by the arrangement of exciting windings
    • H02K19/28—Synchronous generators characterised by the arrangement of exciting windings for self-excitation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1823—Rotary generators structurally associated with turbines or similar engines
    • H02K7/183—Rotary generators structurally associated with turbines or similar engines wherein the turbine is a wind turbine
    • H02K7/1838—Generators mounted in a nacelle or similar structure of a horizontal axis wind turbine
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/022—Synchronous motors
    • H02P25/03—Synchronous motors with brushless excitation
    • 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
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
    • H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
    • H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
    • H02P9/302—Brushless excitation

Definitions

  • the present invention relates to a synchronous electric machine and a method for operating the synchronous electric machine and uses of the synchronous electric machine.
  • synchronous machines have been in use, predominantly as generators of electrical energy, because of their ability to produce both active and reactive power. Nonetheless, synchronous machines are increasingly being used as motors, particularly according to the invention of rare earth permanent magnets, which make it possible to build particularly efficient motors.
  • motors find extensive and numerous applications in the industry, up to the double-digit MW range, in particular as servo and / or drive motors and / or in vehicle technology, in particular as drive motors for rail vehicles and / or electric road vehicles.
  • Synchronous generators with rare earth permanent magnets find numerous applications in electrical power generation, e.g. in wind turbines, converting the mechanical energy of the wind into electrical energy.
  • Synchronous generator was analyzed with inverter, refers to DE 198 27 261 C1.
  • the described solution is based on a variable speed synchronous generator whose speed variations are compensated by a converter so that it can be operated on a constant frequency electrical network.
  • a variable speed synchronous generator whose speed variations are compensated by a converter so that it can be operated on a constant frequency electrical network.
  • the object of the invention is to improve a synchronous machine.
  • Claim 15 protects a wind turbine and claim 16, a water engine with a synchronous electric machine.
  • Claim 17 protects a method for operating the synchronous electrical machine.
  • An electric synchronous machine according to the invention can be operated in particular as a motor or as a generator. It has a stator with a winding arrangement. According to the invention, the winding arrangement comprises two or more windings through which current flows. In addition, the electric synchronous machine according to the invention has a rotor with a winding arrangement. The winding arrangement of the rotor comprises two or more current-carrying coils. Stand and runners are mounted relative to each other movable. Preferably, the rotor is rotatable, in particular around a fixed center, within or stored outside the stand.
  • two windings in particular a plurality of pairs of windings of the winding arrangement of the stator and / or of the rotor, are electrically connected to one another via a rectifier.
  • a Gleichpoliger current is passed into the winding on the output side of the rectifier, which serves in this winding the generation of a Gleichpoligen magnetic field.
  • This DC magnetic field interacts with a magnetic field of one or more windings of the other winding assembly and causes the movement of the electric synchronous machine.
  • brushes and / or slip rings can advantageously be dispensed with for providing a direct current through a power source that is movable relative to the winding.
  • An electric synchronous machine is an alternator, wherein one or more windings of the stator or the rotor are supplied with an alternating current.
  • the windings of the stator and / or of the rotor can be switched so that they generate a plurality of pole numbers of the magnetic field.
  • the number of poles of the magnetic field generated by a winding can be chosen in particular so that they produce similar large inductions in the air gap of the synchronous machine.
  • the alternating current through the windings of the synchronous machine in the sense of the present invention may be both single-phase, wherein a movable, in particular rotatable field, in particular by an additional capacitor, is generated.
  • a polyphase, in particular three-phase alternating current for generating the movable field can be introduced into one or more windings of a winding arrangement.
  • a current for generating the movable magnetic field can also be generated by a, in particular electronic control, preferably based on the Parke-Clarke transformation or a similar transformation.
  • a power may be provided based on one or more frequency converters.
  • the windings may preferably be three-stranded two-layer windings which, depending on the number of pole pairs, may in particular also be offset from one another: Preferably, the starts and ends of the windings are routed to a terminal board or similar device.
  • the electric synchronous machine has two or more windings, which differ in their number of poles.
  • the windings with different number of poles can be located in the winding arrangement in the rotor and / or in the stator.
  • different pairs of windings can have a different pole difference.
  • a rectifier of the electric synchronous machine is arranged between two windings with different number of poles. Due to the different number of poles can be advantageously achieved electromagnetic decoupling of the different magnetic fields of the various coils.
  • the windings of the winding arrangement of the stator are arranged spatially separated.
  • the spatial separation can take place, in particular in a lathe, axially and / or radially.
  • the windings of the winding arrangement are arranged in two laminated cores.
  • a laminated core according to the present invention may preferably be layered from mutually insulated dynamo sheets.
  • a laminated core may in particular have grooves for receiving one or more stator windings or one or more rotor windings.
  • the thickness of the individual sheets may vary depending on the requirements and embodiment and in particular be at least 0.1 mm and in particular a maximum of 1, 5 mm.
  • the winding arrangement of the rotor spatially, in particular axially and / or radially separate windings have.
  • the windings may in particular be implemented in two or more rotor laminations.
  • By using different laminated cores can be advantageously simplified electromagnetic decoupling, so that in particular magnetic fields of different windings in a winding arrangement only minimal, especially not at all, influence.
  • the windings of the winding arrangement of the stator are accommodated in a single laminated core.
  • the windings of the winding arrangement of the rotor are accommodated in a single laminated core. This advantageously allows a particularly compact design.
  • the electric synchronous machine in the slots of the stator on two or more windings which have different numbers of poles.
  • the electric synchronous machine in the grooves of the rotor on two or more windings which have different numbers of poles.
  • two rotor windings are electrically connected via the rectifier.
  • One of the rotor windings may in particular be short-circuited, preferably in order to dampen the torque fluctuations on the shaft and / or to protect the other windings in a load unbalanced operation from thermal consequences of the counter-rotating component of the air gap induction.
  • the windings of a winding arrangement are preferably arranged in a common laminated core or in separate laminated cores.
  • two or more windings of a winding arrangement in a laminated core and two or more other windings of the same winding arrangement are arranged in a spatially separated laminated core.
  • the electric synchronous machine in the grooves of the rotor on two or more windings which have different numbers of poles.
  • the electric synchronous machine in the slots of the stator on two or more windings which have different numbers of poles.
  • two stator windings are electrically connected via the rectifier.
  • one of the stator windings may be short-circuited, in particular in order to dampen the torque fluctuations on the shaft and / or to protect the other windings from thermal consequences of the counter-rotating component of the air gap induction during an unbalanced load operation.
  • the windings of a winding arrangement are preferably arranged in a common laminated core or in separate laminated cores.
  • two or more windings of a winding arrangement in a laminated core and two or more other windings of the same winding arrangement are arranged in a spatially separated laminated core.
  • the electric synchronous machine has one or more Hall sensors, which monitor the magnetic field, in particular one or more windings of a winding arrangement of the stator and / or the rotor. Additionally or alternatively, the electric synchronous machine has one or more current sensors which monitor the current within one or more windings of a winding arrangement of the stator and / or the rotor. Additionally or alternatively, the electric synchronous machine has one or more observers, who determine the current and / or the magnetic field, in particular one or more windings of a winding arrangement of the stator and / or the rotor. In particular, an observer is based on a mathematical model of one or more windings.
  • an observer is fed with information of a sensor arrangement which in particular observe a current and / or a magnetic field of another winding.
  • a current movement speed in particular a rotational speed of the electric synchronous machine can thereby also be determined.
  • this can be used to determine a current runner and / or stand position.
  • this saves a position sensor and / or a position can be detected redundantly.
  • the rotor and / or the stator of the electric synchronous machine to a position sensor which is adapted to detect in particular the absolute position between the stator and rotor.
  • a position can thus be detected with high precision and / or detected redundantly.
  • a fluid power engine in particular with a turbomachine for converting the mechanical energy of a fluid, in particular wind or water, a synchronous electric machine according to the embodiments described herein.
  • the electric synchronous machine according to the invention has a high number of poles, in particular to the speed and / or power frequency suitable.
  • a wind power machine with an electric synchronous machine can thus be operated as a generator without an additional gear, ie as a direct drive.
  • the embodiments of the electric synchronous machine are not limited to the mentioned embodiments and developments, but may also result from advantageous combinations of the mentioned embodiments and / or developments, in particular in conjunction with the embodiments.
  • a method according to the invention for operating the electric synchronous machine according to one of the embodiments described here has the following steps, which can be repeated in particular or take place in a concurrent manner, preferably several times.
  • An alternating current is fed into one or more windings of a winding arrangement. Additionally or alternatively, the rotor is driven so that it moves relative to the stator.
  • An alternating current of one or more windings is transformed into a Gleichpoligen, in particular uniform current through a rectifier and passed into one or more windings of the same winding arrangement. Torque fluctuations and / or the counter rotating component of the rotating field are effectively minimized in particular by means of one or more damper windings.
  • Fig. 1 an electrical synchronous machine according to an embodiment of the
  • Fig. 2 a synchronous electric machine according to another embodiment of the invention.
  • Fig. 3 a wind power machine with a synchronous electric machine according to an embodiment of the invention.
  • Fig. 1 shows a double-excited synchronous machine, in particular for use in wind turbines.
  • the winding arrangement of the stator 1 comprises two windings. A first winding, the stator excitation winding 2, shares, together with a second winding, the stator armature winding 3, the stator slots of the electric synchronous machine.
  • the winding arrangement of the rotor 4 comprises three windings.
  • the rotor armature winding 5 shares, together with the rotor excitation winding 6 and the damper winding 10, the rotor slots of the electric synchronous machine.
  • the rotor excitation winding 6 is connected via a rectifier 7 to the rotor armature winding 5.
  • Fig. 2 shows a double-excited synchronous machine.
  • the winding arrangement of the stator 1 comprises three windings. A first winding, the stator excitation winding 3, shares, together with a second winding, the stator armature winding 2 and a third winding, the damper winding 10, the stator slots of the electric synchronous machine.
  • the winding arrangement of the rotor 4 comprises two windings.
  • the rotor armature winding 5 shares, together with the rotor excitation winding 6, the rotor slots of the electric synchronous machine.
  • the stator excitation winding 3 is connected via a rectifier 7 to the stator armature winding 2.
  • An electric synchronous machine carries in the stator slots a first winding (stator excitation winding) with q pole pairs and a second winding (stator armature winding) with p pole pairs.
  • a first winding rotor exciter winding
  • a second winding rotor armature winding
  • a third winding damper winding
  • the rotor armature winding is connected to the rotor excitation winding via a rectifier.
  • the damper winding is either short-circuited or connected to an impedance.
  • the stator excitation current generates a stationary, or a rotating flux with q pole pairs in the air gap of the electric synchronous machine.
  • the stator flux induces alternating voltages with specific frequencies, amplitudes and phase shifts.
  • the stator flux does not induce in the rotor excitation winding and in the damper winding with p pole pairs Tensions.
  • the induced voltages in the rotor armature winding are connected via a rectifier to the rotor excitation winding with p pole pairs and generate a rotor exciting current in the rotor exciter winding with p pole pairs.
  • the rotor exciting current generates in the air gap of the electric synchronous machine a flow which is relative to the rotor and rotates relative to the stator at the mechanical speed of the rotor.
  • the rotating rotor flux with p pole pairs induced in the stator armature winding with p pole pairs AC voltages with specific frequency, amplitudes and phase shifts.
  • the rotor flux induces no voltages in the stator excitation winding with q pole pairs.
  • the stator excitation current is controlled by changing the amplitude and / or frequency of the stator armature voltage. In the damper winding on the rotor side voltages of all those components of the air-gap rotating field, which rotate at speeds different from synchronous speed, induced.
  • the synchronous machine as a wind power generator generates in illustrated solution electrical energy which is fed via stator armature windings in the power grid.
  • An electric synchronous machine carries in the rotor grooves a first winding (rotor exciter winding) with q pole pairs and a second winding (rotor armature winding) with p pole pairs.
  • a first winding stator excitation winding
  • a second winding stator winding
  • a third winding damper winding
  • the stator armature winding is connected via a rectifier to the stator excitation winding.
  • the damper winding is either shorted or connected to an impedance.
  • the rotor exciter current generates a stationary or a rotating flux with q pole pairs in the air gap of the electric synchronous machine.
  • the rotor flux induces AC voltages with specific frequency, amplitudes and phase shifts in the stator armature winding with q pairs of poles.
  • the rotor flux induces no voltages in the stator excitation winding and in the damper winding with p pole pairs.
  • the induced voltages in the stator armature winding are connected via a rectifier to the stator excitation winding with p pole pairs and generate a stator excitation current in the stator excitation winding with p Pole pairs.
  • the stator excitation current generated in the air gap of the electric synchronous machine a flooding, which is relative to the stator and rotates relative to the rotor with the mechanical speed of the stator.
  • the rotating stator flux with p pole pairs induced in the rotor armature winding with p pole pairs AC voltages with specific frequency, amplitudes and phase shifts.
  • the stator flux does not induce any stresses in the rotor excitation winding with q pairs of poles.
  • the rotor exciter current is regulated by changing the amplitude and / or frequency of the rotor armature voltage. In the damper winding on the stator side voltages of all those components of the air-gap rotating field, which rotate at speeds different from synchronous speed, induced.
  • the synchronous machine as a wind power generator generates in illustrated solution electrical energy that is fed via rotor armature windings in the power grid.
  • Fig. 3 shows a wind power machine 1 1 with a synchronous electric machine 14 according to an embodiment of the invention.
  • the electric synchronous machine 14 is operated as a generator.
  • the rotor 15 of the wind power machine 1 1 transforms wind energy into mechanical energy, by which the generator is driven.
  • the electric synchronous machine 14 is arranged in a housing 13 which is located on a mast 12 and is mechanically connected to the rotor via a shaft.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)

Abstract

La présente invention concerne une machine électrique synchrone, notamment un moteur ou un générateur, comprenant un stator qui comprend un agencement d'enroulements comportant au moins deux enroulements parcourus par le courant, ainsi qu'un rotor qui comprend un agencement d'enroulements comportant au moins deux enroulements parcourus par le courant.
PCT/EP2012/003796 2011-09-08 2012-09-10 Machine synchrone à double excitation WO2013034313A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011112924.7 2011-09-08
DE102011112924A DE102011112924A1 (de) 2011-09-08 2011-09-08 Doppelterregte Synchronmaschine

Publications (2)

Publication Number Publication Date
WO2013034313A2 true WO2013034313A2 (fr) 2013-03-14
WO2013034313A3 WO2013034313A3 (fr) 2013-09-06

Family

ID=46832339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/003796 WO2013034313A2 (fr) 2011-09-08 2012-09-10 Machine synchrone à double excitation

Country Status (2)

Country Link
DE (1) DE102011112924A1 (fr)
WO (1) WO2013034313A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627666A1 (fr) * 2018-09-24 2020-03-25 Siemens Aktiengesellschaft Unité magnétique active d'une machine électrique rotative polyphasée

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103546002A (zh) * 2013-09-25 2014-01-29 于波 高效变速恒频发电机
CN109818442A (zh) * 2019-03-21 2019-05-28 哈尔滨理工大学 一种交流无刷双馈电机
CN112145347B (zh) * 2020-09-03 2022-07-01 上海电气风电集团股份有限公司 风力发电系统及其控制方法和装置

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3034035A (en) 1959-01-19 1962-05-08 Gen Electric Brushless synchronous machines
DE19827261C1 (de) 1998-06-18 2000-03-02 Siemens Ag Verfahren und Vorrichtung zur Ausregelung von Leistungsschwankungen eines Generators

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US3290582A (en) * 1962-11-09 1966-12-06 Safety Electrical Equipment Co Brushless generating system regulator which shunts excitation current from the fieldwinding
JPS5961457A (ja) * 1982-09-30 1984-04-07 Sakutaro Nonaka ブラシなし三相同期発電機
EP0467517B1 (fr) * 1990-05-26 1993-09-29 Satake Engineering Co., Ltd. Moteur à induction synchrone à double stator
DE69514466T2 (de) * 1994-09-27 2000-12-07 Takashi Take Modulationsregelung für eine Wechselstrommaschine
JP3539148B2 (ja) * 1997-07-31 2004-07-07 株式会社サタケ 円筒型同期発電機
US6051953A (en) * 1998-07-24 2000-04-18 Vithayathil; Joseph Brushless exciterless field system for AC synchronous machines
US20050162030A1 (en) * 2004-01-27 2005-07-28 Shah Manoj R. Brushless exciter with electromagnetically decoupled dual excitation systems for starter-generator applications
CN101645637B (zh) * 2008-08-04 2011-03-09 中国矿业大学 单一铁心无刷同步电机
CN201403036Y (zh) * 2009-05-04 2010-02-10 陕西科技大学 同步风力发电机无刷励磁装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3034035A (en) 1959-01-19 1962-05-08 Gen Electric Brushless synchronous machines
DE19827261C1 (de) 1998-06-18 2000-03-02 Siemens Ag Verfahren und Vorrichtung zur Ausregelung von Leistungsschwankungen eines Generators

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627666A1 (fr) * 2018-09-24 2020-03-25 Siemens Aktiengesellschaft Unité magnétique active d'une machine électrique rotative polyphasée
WO2020064416A1 (fr) * 2018-09-24 2020-04-02 Siemens Aktiengesellschaft Unité active magnétique d'une machine électrique rotative multiphase
US11901782B2 (en) 2018-09-24 2024-02-13 Flender Gmbh Magnetically active unit of a rotating multiphase electric machine

Also Published As

Publication number Publication date
WO2013034313A3 (fr) 2013-09-06
DE102011112924A1 (de) 2013-03-14

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