JPS6474081A - Magnetic levitation rotary machine - Google Patents

Magnetic levitation rotary machine

Info

Publication number
JPS6474081A
JPS6474081A JP62226322A JP22632287A JPS6474081A JP S6474081 A JPS6474081 A JP S6474081A JP 62226322 A JP62226322 A JP 62226322A JP 22632287 A JP22632287 A JP 22632287A JP S6474081 A JPS6474081 A JP S6474081A
Authority
JP
Japan
Prior art keywords
motor
power
invertor
magnetic bearing
rotary machine
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.)
Pending
Application number
JP62226322A
Other languages
Japanese (ja)
Inventor
Takeshi Komata
Hideaki Kobayashi
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62226322A priority Critical patent/JPS6474081A/en
Publication of JPS6474081A publication Critical patent/JPS6474081A/en
Pending legal-status Critical Current

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
    • F16C32/0457—Details of the power supply to 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
    • 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

Abstract

PURPOSE:To miniaturize, to make lightweight and to make low cost by making an invertor device to drive an AC motor so as power running and regenerative braking can be performed and providing a feeding path and a service interruption detector. CONSTITUTION:An invertor device 20 to drive an AC motor 1 levitates and rotates a magnetic levitation rotary machine by supplying power, which was supplied from the outside power source 9, to the AC motor 1 from an invertor section 4 and to a magnetic bearing 2 from a magnetic bearing driving gear 5 through a rectifier 6 and a DC bus bar 5 in normal operation. And in case of power failure, a regenerative braking is applied to the inside of the invertor device 20 by a signal of the service interruption detector 10, and the AC motor 1 is decelerated. During this period, power is supplied to a DC bus bar 11 by regeneration from the AC motor 1, the magnetic bearing driving gear 5 is operated by this power to keep a rotor 3 levitated.
JP62226322A 1987-09-11 1987-09-11 Magnetic levitation rotary machine Pending JPS6474081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62226322A JPS6474081A (en) 1987-09-11 1987-09-11 Magnetic levitation rotary machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62226322A JPS6474081A (en) 1987-09-11 1987-09-11 Magnetic levitation rotary machine

Publications (1)

Publication Number Publication Date
JPS6474081A true JPS6474081A (en) 1989-03-20

Family

ID=16843373

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62226322A Pending JPS6474081A (en) 1987-09-11 1987-09-11 Magnetic levitation rotary machine

Country Status (1)

Country Link
JP (1) JPS6474081A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03318U (en) * 1989-05-24 1991-01-07
JPH03121221U (en) * 1990-03-23 1991-12-12
EP0825702A1 (en) * 1996-07-25 1998-02-25 LUST ANTRIEBSTECHNIK GmbH Device and method for the operation of the drive circuitry of an electric motor with magnetic bearings during a power failure
US5917297A (en) * 1996-07-25 1999-06-29 Lust Antriebstechnik Gmbh Arrangement and method for operating a magnetically suspended, electromotoric drive apparatus in the event of a mains disturbance
US6062099A (en) * 1996-02-02 2000-05-16 Komatsu Ltd. Robot for handling
WO2001017096A1 (en) * 1999-08-31 2001-03-08 Eskom The protection of an electricity generator
JP2009536009A (en) * 2006-04-28 2009-10-01 シーメンス アクチエンゲゼルシヤフト A device that ensures uninterrupted power supply of magnetic bearings when power supply voltage is lost
US11031896B2 (en) 2017-07-31 2021-06-08 Mitsubishi Electric Corporation Motor driving apparatus and refrigeration cycle equipment
WO2021200375A1 (en) * 2020-03-31 2021-10-07 ダイキン工業株式会社 Drive device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03318U (en) * 1989-05-24 1991-01-07
JPH03121221U (en) * 1990-03-23 1991-12-12
US6062099A (en) * 1996-02-02 2000-05-16 Komatsu Ltd. Robot for handling
US6155131A (en) * 1996-02-02 2000-12-05 Komatsu Ltd. Handling robot
EP0825702A1 (en) * 1996-07-25 1998-02-25 LUST ANTRIEBSTECHNIK GmbH Device and method for the operation of the drive circuitry of an electric motor with magnetic bearings during a power failure
US5917297A (en) * 1996-07-25 1999-06-29 Lust Antriebstechnik Gmbh Arrangement and method for operating a magnetically suspended, electromotoric drive apparatus in the event of a mains disturbance
WO2001017096A1 (en) * 1999-08-31 2001-03-08 Eskom The protection of an electricity generator
JP2009536009A (en) * 2006-04-28 2009-10-01 シーメンス アクチエンゲゼルシヤフト A device that ensures uninterrupted power supply of magnetic bearings when power supply voltage is lost
US11031896B2 (en) 2017-07-31 2021-06-08 Mitsubishi Electric Corporation Motor driving apparatus and refrigeration cycle equipment
WO2021200375A1 (en) * 2020-03-31 2021-10-07 ダイキン工業株式会社 Drive device
JP2021164239A (en) * 2020-03-31 2021-10-11 ダイキン工業株式会社 Drive device

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