EP0506702A1 - Machine synchrone - Google Patents

Machine synchrone

Info

Publication number
EP0506702A1
EP0506702A1 EP91900237A EP91900237A EP0506702A1 EP 0506702 A1 EP0506702 A1 EP 0506702A1 EP 91900237 A EP91900237 A EP 91900237A EP 91900237 A EP91900237 A EP 91900237A EP 0506702 A1 EP0506702 A1 EP 0506702A1
Authority
EP
European Patent Office
Prior art keywords
synchronous machine
pole
field
magnetic
longitudinal
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
EP91900237A
Other languages
German (de)
English (en)
Inventor
Hermann Waldmann
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 EP0506702A1 publication Critical patent/EP0506702A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • H02K3/20—Windings for salient poles for auxiliary purposes, e.g. damping or commutating

Definitions

  • the invention relates to a synchronous machine with a leg roller.
  • a method and an arrangement for reducing at least one frequency component of a periodic pulsation is known from EP-A1-0 268 160.
  • the pulsations of an electrical variable at the output of the synchronous generator are controlled at a frequency which deviates from the synchronous generator's own frequency.
  • the regulation is carried out on the section formed by the diesel engine, generator and network by intervening in the excitation of the generator (ie by regulating the magnetic longitudinal field) or by influencing the operating conditions of the diesel engine (quantity and time of the injected fuel are controlled) or by a Impedance arranged at the output of the generator (adjustable additional load).
  • the object of the present invention is to provide a synchronous machine of the type mentioned in the introduction, in which the effects of mechanical oscillations of the salient pole rotor, which can be attributed to both the drive-side and load-side influences, are compensated for in a simple manner.
  • the object is achieved according to the invention by the features specified in claim 1.
  • Advantageous embodiments of the synchronous machine according to the invention are described in the subclaims.
  • control coils are provided according to the invention which generate a controllable magnetic transverse field.
  • the control coils are arranged on the stub pole rotor in such a way that the magnetic transverse field generated by the control coils is superimposed on the longitudinal magnetic field in the air gap. This gives an additional intervention parameter for regulating the fluctuations caused by mechanical oscillations of the salient pole rotor on the electrical side.
  • the transverse magnetic field generated by the control coils is superimposed on the longitudinal magnetic field.
  • a preferred embodiment is therefore a synchronous machine according to claim 2.
  • a synchronous machine In such a synchronous machine, both a high pole coverage for the longitudinal magnetic field and a sufficiently high amplitude for the transverse magnetic field are guaranteed.
  • the magnetic transverse field Due to the arrangement of the control coils according to claim 2, the magnetic transverse field essentially penetrates only the pole shoes, that is to say only the upper pole region adjoining the air gap.
  • the pole core and the yoke on the other hand, only carry the longitudinal magnetic flux linked to the excitation coils.
  • Such an arrangement is therefore predestined for relatively rapid changes in the magnetic transverse field and thus for fast adjustments of disturbing oscillations of the thigh pole rotor.
  • damper frames do not act on the magnetic transverse field. Accordingly, they also do not influence the regulation of the mechanical oscillations of the stub pole rotor which takes place via the magnetic transverse field.
  • a damper cage could be due to its Effect on the magnetic transverse field in the synchronous machine according to the invention can only be used if the required control times for the magnetic transverse field are at least a power of ten greater than the relevant subtransient time constants of the damper cage.
  • FIG 1 in a developed representation a leg pole runner of the synchronous machine according to the invention in section
  • FIG 2 shows a section through the leg pole runner along the
  • FIG. 3 shows the longitudinal magnetic field and the transverse magnetic field in an idealized representation
  • FIG. 4 shows a flow diagram of the invention
  • Synchronous machine 5 shows a pole piece of the thigh pole rotor according to FIG 2 with damper frame and without coils (section II-II as in
  • FIG. 1 denotes a salient pole runner of a synchronous machine, which has poles 2 which consist of a pole shaft 3 and a pole shoe 4 placed thereon.
  • Each pole piece 4 has a groove 5 in its center, which extends in the longitudinal axis of the salient pole runner 1.
  • recesses 6 are also provided, each extending parallel to the groove 5.
  • Each pole shaft 3 of the stub pole rotor 1 is enclosed by an excitation coil 7 (FIG. 2).
  • the excitation coils 7 lie here with their long sides in the two recesses 6 of a pole shaft 3.
  • the salient pole rotor 1 has control coils 8 according to the invention. Two longitudinal sides of the adjacent control coils 8 lie together in the groove 5 of the pole shoes 4.
  • a control coil 8 surrounds the adjacent pole shoe halves of two poles 2 (FIG. 2).
  • the control coils 8 are e.g. with a locking wedge in the grooves 5 and / or bandages and by means of support rings or caps in the end region of the magnet wheel.
  • FIG 1 the current direction, which points into the paper plane, is marked with a cross.
  • the current direction pointing out of the paper plane is marked with a dot. 2 shows the direction of the current I with arrows.
  • the excitation coils 7 generate the longitudinal magnetic field B 0 (solid arrows)
  • the control coils 8 generate the magnetic transverse field denoted by ___ ⁇ B (dashed lines) Arrows).
  • the longitudinal field B 0 generated by the excitation coils 7 has a rectangular shape.
  • the transverse magnetic field A B generated by the control coils 8 corresponds to a transverse fundamental wave amplitude of
  • B ___, B -z- (1 - sine.). Due to the longitudinal field B n stored transverse field ____ B, the magnetic flux density in one pole half around ____. B decreased (in each case the left pole shoe half in FIG. 1) and in the other increased by ⁇ B (in each case the right pole shoe half).
  • z. B. at load surges should only be provided in the damper cage if the required control time for the transverse field ⁇ . B at least a power of ten is greater than the relevant subtransient time constants of the compensation processes in the synchronous machine. In conventional machine design, these subtransient time constants are in the order of 10 to 50 msec.
  • At least one damper frame 9 can advantageously be provided on each pole piece 4 for damping compensation processes in the synchronous motor according to the invention.
  • Such a damper frame 9 only acts on the longitudinal magnetic field B Q and thus does not influence the control behavior for the transverse magnetic field __- B. 5, the damper frames 9 are arranged symmetrically to the grooves 5.
  • the damper frames 9 are expediently attached to the pole shoes 4 before the control coils 8 are inserted.
  • the design of the invention can be modified in many ways compared to the drawing.
  • each in a slot 5 in the center of the pole for example, there can also be a plurality of slots for receiving a correspondingly spatially distributed control winding.
  • the spatial installation of the damper frame 9 is expediently carried out on the end faces of the poles in such a way that they are completed even in the unwound state and enable the windings 7 and 8 to be introduced subsequently.
  • the cross-field control according to the invention can also be used advantageously for other control-related tasks, such as, for example, in the case of network-side active load oscillations or in wind power plants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

Pour compenser aisément dans une machine synchrone les effets des mouvements pendulaires mécaniques du rotor à pôle saillant, l'invention prévoit des bobines de commande (8) générant un champ transversal magnétique réglable (DELTAB). Les bobines de commande (8) sont disposées sur le rotor à pôle saillant (1) de telle façon que le champ transversal magnétique réglable (DELTAB) généré par lesdites bobines de commande (8) se superpose dans l'entrefer au champ longitudinal magnétique réglable (BO) généré par les bobines d'excitation (7) connues.
EP91900237A 1989-12-22 1990-11-20 Machine synchrone Ceased EP0506702A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP89123789 1989-12-22
EP89123789 1989-12-22

Publications (1)

Publication Number Publication Date
EP0506702A1 true EP0506702A1 (fr) 1992-10-07

Family

ID=8202271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900237A Ceased EP0506702A1 (fr) 1989-12-22 1990-11-20 Machine synchrone

Country Status (5)

Country Link
US (1) US5294857A (fr)
EP (1) EP0506702A1 (fr)
JP (1) JPH05502574A (fr)
CA (1) CA2071995A1 (fr)
WO (1) WO1991010278A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2814146A2 (fr) * 2013-06-12 2014-12-17 Hamilton Sundstrand Corporation Machines synchrones à aimant permanent avec régulation de flux magnétique

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5422525A (en) * 1994-06-30 1995-06-06 Sundstrand Corporation Switched reluctance machine having unbalance forces compensation coils
JP2001327135A (ja) * 2000-05-18 2001-11-22 Mitsubishi Electric Corp 回転電機
DE10027107A1 (de) * 2000-05-31 2001-12-13 Maximilian Hermann Blomeier Leistungsvariabler Generator
SE0103906L (sv) * 2001-11-23 2003-01-28 Jan Jamali Synkronmaskin med utpräglade rotorpoler innefattande permanentmagnetaggregat
DE10304022A1 (de) 2003-02-01 2004-08-05 Alstom Technology Ltd Verfahren und Vorrichtung zur Kompensation der Anker-Reaktion eines rotierenden Erregers
US20040212273A1 (en) * 2003-04-24 2004-10-28 Gould Len Charles Heat engine and generator set incorporating multiple generators for synchronizing and balancing
JP2005073450A (ja) * 2003-08-27 2005-03-17 Matsushita Electric Ind Co Ltd モータジェネレータ
KR20130031006A (ko) * 2011-09-20 2013-03-28 삼성전기주식회사 스위치드 릴럭턴스 모터
JP2022053571A (ja) * 2020-09-25 2022-04-06 隆義 追立 発電効率を大幅向上させる発電機
CN114513077B (zh) * 2022-01-28 2023-09-08 哈尔滨工业大学 绕组能量交换式无刷电励磁同步电机双绕组解耦排布结构

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1369765A (en) * 1918-08-28 1921-03-01 Allis Chalmers Mfg Co Pole and method of constructing same
US2411002A (en) * 1942-12-31 1946-11-12 Rudenberg Reinhold Damper system for synchronous generators
US3127532A (en) * 1960-05-14 1964-03-31 Asea Ab Solid pole for self-starting synchronous motors
US3870912A (en) * 1972-05-18 1975-03-11 Siemens Ag Smooth-core rotor for a synchronous electric machine
CH570729A5 (fr) * 1974-04-01 1975-12-15 Bbc Brown Boveri & Cie
SU574821A1 (ru) * 1976-03-30 1977-09-30 Предприятие П/Я А-7318 Ротор внополюсной синхронной машины
US4435664A (en) * 1981-04-13 1984-03-06 The Garrett Corporation Magnetic interpole apparatus for improving commutation characteristics of a dynamoelectric machine
SU1092653A1 (ru) * 1982-03-19 1984-05-15 Всесоюзный Научно-Исследовательский Институт Электромашиностроения Ротор внополюсной электрической машины
JPS5972949A (ja) * 1982-10-19 1984-04-25 Toshiba Corp 突極形塊状磁極回転子
JPS59148554A (ja) * 1983-02-14 1984-08-25 Fuji Electric Co Ltd ブラシレス励磁方式同期機の交流励磁機から定電圧源を得る方法
EP0268160A1 (fr) * 1986-11-17 1988-05-25 GebràœDer Sulzer Aktiengesellschaft Méthode et appareil à réduire au moins un facteur de fréquence d'une pulsation périodique
CH675799A5 (fr) * 1988-04-26 1990-10-31 Asea Brown Boveri

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9110278A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2814146A2 (fr) * 2013-06-12 2014-12-17 Hamilton Sundstrand Corporation Machines synchrones à aimant permanent avec régulation de flux magnétique

Also Published As

Publication number Publication date
US5294857A (en) 1994-03-15
JPH05502574A (ja) 1993-04-28
CA2071995A1 (fr) 1991-06-23
WO1991010278A1 (fr) 1991-07-11

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