GB1465522A - Control systems for induction motors - Google Patents
Control systems for induction motorsInfo
- Publication number
- GB1465522A GB1465522A GB214074A GB214074A GB1465522A GB 1465522 A GB1465522 A GB 1465522A GB 214074 A GB214074 A GB 214074A GB 214074 A GB214074 A GB 214074A GB 1465522 A GB1465522 A GB 1465522A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- motor
- frequency
- speed
- actual
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/045—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/048—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using AC supply for only the rotor circuit or only the stator circuit
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- 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
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/01—Asynchronous machines
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/047—V/F converter, wherein the voltage is controlled proportionally with the frequency
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Multiple Motors (AREA)
Abstract
1465522 Automatic control of speed GENERAL ELECTRIC CO 17 Jan 1974 [24 Jan 1973] 02140/74 Heading G3R In a speed control system for an induction motor, the frequency and voltage of the motor drive are controlled using a desired motor speed input applied to both frequency and voltage control paths, an actual motor speed signal being applied to only the voltage control path. The frequency is controlled according to desired motor speed input and a desired slip frequency signal, and the voltage controlled according to the actual and desired motor speeds . As shown, a frequency control signal Ws to the motor drive unit 40 is formed from the desired speed signal Wr and a desired slip frequency signal # O . The difference We between the desired speed signal and the actual motor speed signal, Wr, from a motor driven tachometer 20, passes through a PI controller 22 to form the voltage control signal E to unit 40. The desired speed signal Wr may be modified by the motor position error i.e. the difference between a desired position signal #r and actual rotor position signal #r from resolver 30. The unit 40 may be a frequency changer or a pulse width modulated inverter, and the system be analogue as Fig. 3 (not shown), digital or a hybrid system.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32644973A | 1973-01-24 | 1973-01-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1465522A true GB1465522A (en) | 1977-02-23 |
Family
ID=23272259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB214074A Expired GB1465522A (en) | 1973-01-24 | 1974-01-17 | Control systems for induction motors |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS49109816A (en) |
DE (1) | DE2403107A1 (en) |
FR (1) | FR2214995B1 (en) |
GB (1) | GB1465522A (en) |
IT (1) | IT1006141B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2367494A1 (en) * | 2007-12-28 | 2011-11-04 | Ls Industrial Systems Co., Ltd. | Apparatus for controlling inverter |
US20120169051A1 (en) * | 2009-06-23 | 2012-07-05 | Stephan Becker | Emergency Adjustment Device for Blade Pitch Adjustment Systems for Wind Energy Installations |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3323032A (en) * | 1963-07-18 | 1967-05-30 | Gen Motors Corp | Electric drive system |
US3611082A (en) * | 1969-12-15 | 1971-10-05 | Wisconsin Alumni Res Found | Variable speed electric motor system having stator and rotor windings energized in opposite phase sequence with alternating current corresponding in angular velocity to one-half the angular velocity of the rotor |
-
1974
- 1974-01-17 GB GB214074A patent/GB1465522A/en not_active Expired
- 1974-01-23 JP JP1006074A patent/JPS49109816A/ja active Pending
- 1974-01-23 IT IT1971174A patent/IT1006141B/en active
- 1974-01-23 DE DE2403107A patent/DE2403107A1/en active Pending
- 1974-01-24 FR FR7402420A patent/FR2214995B1/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2367494A1 (en) * | 2007-12-28 | 2011-11-04 | Ls Industrial Systems Co., Ltd. | Apparatus for controlling inverter |
US20120169051A1 (en) * | 2009-06-23 | 2012-07-05 | Stephan Becker | Emergency Adjustment Device for Blade Pitch Adjustment Systems for Wind Energy Installations |
US8941351B2 (en) * | 2009-06-23 | 2015-01-27 | Robert Bosch Gmbh | Emergency adjustment device for blade pitch adjustment systems for wind energy installations |
Also Published As
Publication number | Publication date |
---|---|
IT1006141B (en) | 1976-09-30 |
FR2214995A1 (en) | 1974-08-19 |
FR2214995B1 (en) | 1977-08-19 |
DE2403107A1 (en) | 1974-08-08 |
JPS49109816A (en) | 1974-10-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |