WO2001017096A1 - Protection d'un generateur electrique - Google Patents

Protection d'un generateur electrique Download PDF

Info

Publication number
WO2001017096A1
WO2001017096A1 PCT/IB2000/001116 IB0001116W WO0117096A1 WO 2001017096 A1 WO2001017096 A1 WO 2001017096A1 IB 0001116 W IB0001116 W IB 0001116W WO 0117096 A1 WO0117096 A1 WO 0117096A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
shaft
failure
electromagnetic bearing
event
Prior art date
Application number
PCT/IB2000/001116
Other languages
English (en)
Inventor
Peter Lilje
Original Assignee
Eskom
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 Eskom filed Critical Eskom
Priority to AU65860/00A priority Critical patent/AU6586000A/en
Publication of WO2001017096A1 publication Critical patent/WO2001017096A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0442—Active magnetic bearings with devices affected by abnormal, undesired or non-standard conditions such as shock-load, power outage, start-up or touchdown
    • 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
    • H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
    • H02P3/02—Details of stopping control
    • H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2380/00—Electrical apparatus
    • F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators

Definitions

  • THIS INVENTION relates to the protection of an electricity generator, in particular a generator forming part of a modular nuclear power plant.
  • the electrically operated brake may include a resistive braking load
  • the generator may further include a braking resistor control system for
  • the generator may further include an exciter, an excitation transformer
  • the generator may be part of a nuclear power
  • the power plant may be modular in nature and of the pebble
  • the generator may be located inside a pressure
  • the method may include the step of disconnecting an output of the
  • Figure 1 shows a conceptual layout of a pebble bed modular reactor
  • Figure 2 shows a typical connection diagram of an electric brake
  • PBMR power turbine and generator 1 0 is
  • a helium filled pressure vessel 1 2 which encloses
  • the generator 14 includes a rotor 1 6 mounted on a
  • the generator 1 4 furthermore, the generator 1 4 furthermore, the generator 1 4 and the generator 1 4 furthermore, the generator 1 4 and the generator 1 4 furthermore.
  • Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool the stator 24 and a stator frame 26. Coolers 28 are provided to cool
  • a rotating exciter 30 is mounted to one end of the shaft 1 8 as shown
  • turbine 34 is connected to the opposite end of the shaft 1 8.
  • the vessel 1 2 includes a helium supply port 36 and water cooling
  • the generator 14 is connected to a generator busbar 40 via terminals
  • the terminals 42 are enclosed in a terminal enclosure 44.
  • the terminals 42 are also connected via a control busbar 46 to an excitation transformer 48. Excitation power is thus derived from the generator via
  • a braking resistor control system 52 is connected to the sensor 64
  • An automatic voltage regulator 53 is provided to control the voltage at the exciter
  • the terminals 42 are furthermore connected via a control busbar 54
  • the braking resistor control system 52 controls the braking
  • connection diagram 60 shows
  • the generator 14 is shown to include
  • the generator 1 4 is shown to include the shaft 1 8 and the rotating exciter 30.
  • the braking resistor control system 52 is provided to control the rotational speed of the shaft 1 8 in the event of a failure of the electromagnetic bearings shown as
  • control system 52 opens a circuit breaker 72
  • the generator transformer 73 and a high voltage electrical network 74.
  • resistor transformer 80 and a braking resistor switching device 82.
  • control system 52 ensures that the capability of the
  • auxiliary bearings are not oil lubricated due to the fact that the bearings are located within the helium
  • pressure vessel 1 2 and oil lubricants have the effect of contaminating the helium within the pressure vessel 1 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

La présente invention concerne un générateur qui comprend un arbre, un roulement électromagnétique destiné à porter cet arbre de façon rotative, un roulement auxiliaire destiné à porter cet arbre en cas de défaillance du roulement électromagnétique, un capteur destiné à capter une défaillance du roulement magnétique, et un frein électriquement commandé destiné à ralentir la rotation de l'arbre en cas de défaillance du roulement électromagnétique. Cette invention concerne aussi un procédé permettant de protéger un générateur électrique qui consiste à capter une défaillance du roulement électromagnétique du générateur, porter l'arbre du générateur à l'aide d'un roulement auxiliaire en cas de défaillance du roulement électromagnétique, et ralentir l'arbre à l'aide d'un frein électriquement commandé en cas de défaillance du roulement électromagnétique.
PCT/IB2000/001116 1999-08-31 2000-08-11 Protection d'un generateur electrique WO2001017096A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU65860/00A AU6586000A (en) 1999-08-31 2000-08-11 The protection of an electricity generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA995595 1999-08-31
ZA99/5595 1999-08-31

Publications (1)

Publication Number Publication Date
WO2001017096A1 true WO2001017096A1 (fr) 2001-03-08

Family

ID=25587890

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/001116 WO2001017096A1 (fr) 1999-08-31 2000-08-11 Protection d'un generateur electrique

Country Status (2)

Country Link
AU (1) AU6586000A (fr)
WO (1) WO2001017096A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006041183A1 (de) * 2006-09-01 2008-03-06 Oerlikon Leybold Vacuum Gmbh Vakuumpumpe
DE102007028935A1 (de) 2007-06-22 2008-12-24 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Starten einer elektrischen Maschine mit einem magnetisch gelagerten Rotor
US8851756B2 (en) 2011-06-29 2014-10-07 Dresser-Rand Company Whirl inhibiting coast-down bearing for magnetic bearing systems
US8876389B2 (en) 2011-05-27 2014-11-04 Dresser-Rand Company Segmented coast-down bearing for magnetic bearing systems
US8994237B2 (en) 2010-12-30 2015-03-31 Dresser-Rand Company Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems
US9024493B2 (en) 2010-12-30 2015-05-05 Dresser-Rand Company Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems
US9095856B2 (en) 2010-02-10 2015-08-04 Dresser-Rand Company Separator fluid collector and method
US9551349B2 (en) 2011-04-08 2017-01-24 Dresser-Rand Company Circulating dielectric oil cooling system for canned bearings and canned electronics

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683111A (en) * 1986-01-23 1987-07-28 Proto-Power Corporation Gas circulator for a nuclear reactor and a method for use thereof
JPS6474081A (en) * 1987-09-11 1989-03-20 Hitachi Ltd Magnetic levitation rotary machine
JPH0968222A (ja) * 1995-08-31 1997-03-11 Shimadzu Corp 磁気軸受装置
JPH09261919A (ja) * 1996-03-19 1997-10-03 Toshiba Corp 磁気軸受搭載回転電機
US5757148A (en) * 1996-03-13 1998-05-26 Ebara Corporation Method of and apparatus for stopping a motor having magnetic bearings

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4683111A (en) * 1986-01-23 1987-07-28 Proto-Power Corporation Gas circulator for a nuclear reactor and a method for use thereof
JPS6474081A (en) * 1987-09-11 1989-03-20 Hitachi Ltd Magnetic levitation rotary machine
JPH0968222A (ja) * 1995-08-31 1997-03-11 Shimadzu Corp 磁気軸受装置
US5757148A (en) * 1996-03-13 1998-05-26 Ebara Corporation Method of and apparatus for stopping a motor having magnetic bearings
JPH09261919A (ja) * 1996-03-19 1997-10-03 Toshiba Corp 磁気軸受搭載回転電機

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 13, no. 295 (E - 783) 7 July 1989 (1989-07-07) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 7 31 July 1997 (1997-07-31) *
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 2 30 January 1998 (1998-01-30) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006041183A1 (de) * 2006-09-01 2008-03-06 Oerlikon Leybold Vacuum Gmbh Vakuumpumpe
DE102007028935A1 (de) 2007-06-22 2008-12-24 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zum Starten einer elektrischen Maschine mit einem magnetisch gelagerten Rotor
EP2006557A2 (fr) 2007-06-22 2008-12-24 Oerlikon Textile GmbH & Co. KG Procédé et dispositif de démarrage d'une machine électrique avoir un rotor avec un palier magnétique
US7919947B2 (en) 2007-06-22 2011-04-05 Oerlikon Textile Gmbh & Co. Kg Method and device for starting an electric machine with a magnetically mounted rotor
DE102007028935B4 (de) 2007-06-22 2018-12-27 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren und Vorrichtung zum Starten einer elektrischen Maschine mit einem magnetisch gelagerten Rotor
US9095856B2 (en) 2010-02-10 2015-08-04 Dresser-Rand Company Separator fluid collector and method
US8994237B2 (en) 2010-12-30 2015-03-31 Dresser-Rand Company Method for on-line detection of liquid and potential for the occurrence of resistance to ground faults in active magnetic bearing systems
US9024493B2 (en) 2010-12-30 2015-05-05 Dresser-Rand Company Method for on-line detection of resistance-to-ground faults in active magnetic bearing systems
US9551349B2 (en) 2011-04-08 2017-01-24 Dresser-Rand Company Circulating dielectric oil cooling system for canned bearings and canned electronics
US8876389B2 (en) 2011-05-27 2014-11-04 Dresser-Rand Company Segmented coast-down bearing for magnetic bearing systems
US8851756B2 (en) 2011-06-29 2014-10-07 Dresser-Rand Company Whirl inhibiting coast-down bearing for magnetic bearing systems

Also Published As

Publication number Publication date
AU6586000A (en) 2001-03-26

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