IT1250893B - Dispositivo elettronico di frenaggio per motori asincroni. - Google Patents
Dispositivo elettronico di frenaggio per motori asincroni.Info
- Publication number
- IT1250893B IT1250893B ITTO911034A ITTO911034A IT1250893B IT 1250893 B IT1250893 B IT 1250893B IT TO911034 A ITTO911034 A IT TO911034A IT TO911034 A ITTO911034 A IT TO911034A IT 1250893 B IT1250893 B IT 1250893B
- Authority
- IT
- Italy
- Prior art keywords
- circuit
- asynchronous motors
- magnetic suspensions
- electric current
- brake device
- Prior art date
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
- F16C32/0442—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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/042—Turbomolecular vacuum pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D19/00—Axial-flow pumps
- F04D19/02—Multi-stage pumps
- F04D19/04—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps
- F04D19/048—Multi-stage pumps specially adapted to the production of a high vacuum, e.g. molecular pumps comprising magnetic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
-
- 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
-
- 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
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/44—Centrifugal pumps
- F16C2360/45—Turbo-molecular pumps
-
- 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
La presente invenzione concerne un dispositivo elettronico di frenaggio, particolarmente per motori asincroni dotati di sospensioni magnetiche, quali quelli utilizzati in pompe turbomolecolari, comprendente un circuito di recupero dell'energia cinetica di rotazione del rotore durante la fase di decelerazione per mancanza di corrente elettrica di alimentazione di rete, atti a restituire una corrente elettrica utilizzabile per l'alimentazione di emergenza delle sospensioni magnetiche (8).Detto circuito potendo comprendere inoltre una batteria ausiliaria (10) di alimentazione del circuito (9) di controllo delle sospensioni magnetiche (8) durante la fase finale del ciclo di arresto del rotore del motore (5) per mancanza di corrente di rete.(Fig. 1)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO911034A IT1250893B (it) | 1991-12-24 | 1991-12-24 | Dispositivo elettronico di frenaggio per motori asincroni. |
EP92202830A EP0549004A1 (en) | 1991-12-24 | 1992-09-16 | An electronic braking device for asynchronous motors |
US07/993,936 US5376867A (en) | 1991-12-24 | 1992-12-18 | Electronic braking device for asynchronous motors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTO911034A IT1250893B (it) | 1991-12-24 | 1991-12-24 | Dispositivo elettronico di frenaggio per motori asincroni. |
Publications (3)
Publication Number | Publication Date |
---|---|
ITTO911034A0 ITTO911034A0 (it) | 1991-12-24 |
ITTO911034A1 ITTO911034A1 (it) | 1993-06-24 |
IT1250893B true IT1250893B (it) | 1995-04-21 |
Family
ID=11409834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITTO911034A IT1250893B (it) | 1991-12-24 | 1991-12-24 | Dispositivo elettronico di frenaggio per motori asincroni. |
Country Status (3)
Country | Link |
---|---|
US (1) | US5376867A (it) |
EP (1) | EP0549004A1 (it) |
IT (1) | IT1250893B (it) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4410903A1 (de) * | 1994-03-29 | 1995-10-05 | Leybold Ag | System mit Vakuumpumpe, Meßgerät sowie Versorgungs-, Steuer-, Bedienungs- und Anzeigeeinrichtungen |
GB9408959D0 (en) * | 1994-05-05 | 1994-06-22 | Boc Group Plc | Magnetic bearing circuitry |
CA2151532C (en) * | 1994-07-25 | 1998-12-22 | Emerson Electric Co. | Auxiliary starting switched reluctance motor |
US5703456A (en) * | 1995-05-26 | 1997-12-30 | Emerson Electric Co. | Power converter and control system for a motor using an inductive load and method of doing the same |
FI952908A (fi) * | 1995-06-13 | 1997-02-17 | High Speed Tech Ltd Oy | Magneettilaakeroidun sähkökoneen energiansiirtojärjestelmä |
US5923142A (en) * | 1996-01-29 | 1999-07-13 | Emerson Electric Co. | Low cost drive for switched reluctance motor with DC-assisted excitation |
US5866964A (en) * | 1996-01-29 | 1999-02-02 | Emerson Electric Company | Reluctance machine with auxiliary field excitations |
US5780949A (en) * | 1996-01-29 | 1998-07-14 | Emerson Electric Co. | Reluctance machine with auxiliary field excitations |
JPH09247973A (ja) * | 1996-03-13 | 1997-09-19 | Ebara Corp | 磁気軸受を用いたモータの停止方法 |
FR2747431B1 (fr) * | 1996-04-15 | 1998-07-03 | Soc D Mecanique Magnetique | Pompe turbomoleculaire a paliers magnetiques actifs |
JP3708728B2 (ja) * | 1998-11-05 | 2005-10-19 | 日創電機株式会社 | 射出成形機のモータ駆動装置 |
JP3753923B2 (ja) | 2000-04-21 | 2006-03-08 | 株式会社荏原製作所 | 磁気軸受制御装置 |
KR100488523B1 (ko) * | 2003-02-14 | 2005-05-11 | 삼성전자주식회사 | 모터제어장치 및 그 제어방법 |
US7737647B2 (en) * | 2004-07-05 | 2010-06-15 | Moteurs Leroy-Somer | Rectifier and system for controlling the speed of an electric motor |
FR2881297B1 (fr) * | 2005-01-27 | 2007-05-18 | Schneider Toshiba Inverter | Procede et systeme de gestion de la tension sur le bus continu d'un variateur de vitesse pour moteur electrique |
US7456594B2 (en) | 2006-06-09 | 2008-11-25 | Honeywell International Inc. | Electric motor brake engagement holdup system |
DE102006041183A1 (de) * | 2006-09-01 | 2008-03-06 | Oerlikon Leybold Vacuum Gmbh | Vakuumpumpe |
DE102007044690A1 (de) * | 2007-09-19 | 2009-04-02 | Oerlikon Leybold Vacuum Gmbh | Vakuumpumpe |
GB2486884A (en) * | 2010-12-22 | 2012-07-04 | Waukesha Bearings Ltd | A magnetic bearing drive circuit driven from a pair of Direct Current link voltage rails |
FR2974412B1 (fr) * | 2011-04-21 | 2013-06-07 | Adixen Vacuum Products | Procede de controle d'un detecteur de fuites et detecteur de fuites |
CN112152185B (zh) * | 2020-10-20 | 2022-02-01 | 珠海格力电器股份有限公司 | 一种磁悬浮系统的供电控制装置、方法和磁悬浮系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3995204A (en) * | 1974-12-20 | 1976-11-30 | General Electric Company | Braking mode control for an electric traction motor |
US4039914A (en) * | 1975-11-25 | 1977-08-02 | General Electric Company | Dynamic braking in controlled current motor drive systems |
US4143309A (en) * | 1977-04-11 | 1979-03-06 | Patterson Williams G | Turbomolecular pump drive method and apparatus |
JPS5866598A (ja) * | 1981-10-13 | 1983-04-20 | Mitsubishi Electric Corp | 交流エレベ−タの駆動装置 |
DE3210354C2 (de) * | 1982-03-20 | 1985-07-18 | Arthur Pfeiffer Vakuumtechnik Wetzlar Gmbh, 6334 Asslar | Antrieb für Turbomolekularpumpen |
JPS5923098A (ja) * | 1982-07-30 | 1984-02-06 | Hitachi Ltd | タ−ボ分子ポンプ |
JPS60190697A (ja) * | 1984-03-09 | 1985-09-28 | Seiko Seiki Co Ltd | タ−ボ分子ポンプにおける磁気軸受の制御方式 |
JPS62243987A (ja) * | 1986-04-16 | 1987-10-24 | Mitsubishi Electric Corp | 真空装置の非常電源装置 |
US4831469A (en) * | 1987-07-29 | 1989-05-16 | International Business Machines Corporation | Disk drive head retract and motor braking method and apparatus |
SE461947B (sv) * | 1988-08-08 | 1990-04-09 | Digimoto Of Sweden Ab | Foerfarande foer bromsning av en asynkronmotor |
JPH03124283A (ja) * | 1989-10-04 | 1991-05-27 | Mitsubishi Electric Corp | 電動機駆動装置の回生制御回路 |
-
1991
- 1991-12-24 IT ITTO911034A patent/IT1250893B/it active IP Right Grant
-
1992
- 1992-09-16 EP EP92202830A patent/EP0549004A1/en not_active Withdrawn
- 1992-12-18 US US07/993,936 patent/US5376867A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0549004A1 (en) | 1993-06-30 |
US5376867A (en) | 1994-12-27 |
ITTO911034A1 (it) | 1993-06-24 |
ITTO911034A0 (it) | 1991-12-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971023 |