DE3066071D1 - Slip frequency control for variable speed induction motors - Google Patents
Slip frequency control for variable speed induction motorsInfo
- Publication number
- DE3066071D1 DE3066071D1 DE8080300653T DE3066071T DE3066071D1 DE 3066071 D1 DE3066071 D1 DE 3066071D1 DE 8080300653 T DE8080300653 T DE 8080300653T DE 3066071 T DE3066071 T DE 3066071T DE 3066071 D1 DE3066071 D1 DE 3066071D1
- Authority
- DE
- Germany
- Prior art keywords
- variable speed
- frequency control
- induction motors
- slip frequency
- speed induction
- 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.)
- Expired
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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/020,389 US4286203A (en) | 1979-03-14 | 1979-03-14 | Slip frequency control for variable speed induction motors |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3066071D1 true DE3066071D1 (en) | 1984-02-16 |
Family
ID=21798370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8080300653T Expired DE3066071D1 (en) | 1979-03-14 | 1980-03-04 | Slip frequency control for variable speed induction motors |
Country Status (5)
Country | Link |
---|---|
US (1) | US4286203A (de) |
EP (1) | EP0017345B1 (de) |
JP (1) | JPS6031431Y2 (de) |
CA (1) | CA1132186A (de) |
DE (1) | DE3066071D1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5733355A (en) * | 1980-08-06 | 1982-02-23 | Toshiba Corp | Digital speed detector |
US4564795A (en) * | 1981-12-21 | 1986-01-14 | Beckman Instruments, Inc. | Motor speed control system |
DE3211182C2 (de) * | 1982-03-26 | 1986-06-26 | Brown, Boveri & Cie Ag, 6800 Mannheim | Verfahren zur Regelung des Drehmomentes einer Asynchronmaschine |
US4459533A (en) * | 1983-06-03 | 1984-07-10 | Beckman Instruments, Inc. | Variable slip drive system for induction motor |
JPS63500437A (ja) * | 1985-08-09 | 1988-02-18 | ベツクマン インスツルメンツ インコ−ポレ−テツド | 遠心分離機用超過速度信号無効装置 |
US4940927A (en) * | 1985-08-29 | 1990-07-10 | Century Electric, Inc. | Three-phase A-C speed control for variable torque motor |
US4827197A (en) * | 1987-05-22 | 1989-05-02 | Beckman Instruments, Inc. | Method and apparatus for overspeed protection for high speed centrifuges |
CA2049123C (en) * | 1990-09-13 | 2002-01-15 | David T. Green | Apparatus and method for subcuticular stapling of body tissue |
CN1982851B (zh) * | 1995-02-27 | 2012-08-15 | 奥普托普通装置有限公司 | 编码器装置和方法 |
US6087654A (en) * | 1995-02-27 | 2000-07-11 | Opto Generic Devices, Inc. | Encoder apparatus and methods |
US5926387A (en) * | 1995-06-30 | 1999-07-20 | Beckman Instruments, Inc. | Ultracentrifuge operation by computer system |
DE102007014659A1 (de) * | 2007-03-27 | 2008-10-09 | Siemens Ag | Elektrische Antriebsmaschine |
DK2556263T3 (en) | 2010-04-09 | 2017-02-06 | Daniel John Kenway | ENERGY STORAGE AND RECOVERY SYSTEM |
US9611868B2 (en) | 2010-04-09 | 2017-04-04 | Shipstone Corporation | System and method for energy storage and retrieval |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3368133A (en) * | 1965-05-21 | 1968-02-06 | Navy Usa | Closed loop motor control |
CH484566A (de) * | 1967-12-20 | 1970-01-15 | Bosch Gmbh Robert | Einrichtung zum Addieren zweier Impulsfolgen |
DE2120193C3 (de) * | 1971-04-24 | 1982-02-04 | Robert Bosch Gmbh, 7000 Stuttgart | Digitale Schlupffrequenzregelschaltung für eine umrichtergespeiste Asynchronmaschine |
JPS5063429A (de) * | 1973-08-31 | 1975-05-29 | ||
US4042862A (en) * | 1975-11-28 | 1977-08-16 | Franklin Robert C | Power control for variable speed induction motors |
-
1979
- 1979-03-14 US US06/020,389 patent/US4286203A/en not_active Expired - Lifetime
-
1980
- 1980-02-29 CA CA346,775A patent/CA1132186A/en not_active Expired
- 1980-03-04 DE DE8080300653T patent/DE3066071D1/de not_active Expired
- 1980-03-04 EP EP80300653A patent/EP0017345B1/de not_active Expired
- 1980-03-14 JP JP1980032621U patent/JPS6031431Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS55134799U (de) | 1980-09-25 |
US4286203A (en) | 1981-08-25 |
JPS6031431Y2 (ja) | 1985-09-19 |
CA1132186A (en) | 1982-09-21 |
EP0017345B1 (de) | 1984-01-11 |
EP0017345A1 (de) | 1980-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8339 | Ceased/non-payment of the annual fee |