GB1188145A - Method of Controlling the Torque of an Asynchronous Machine - Google Patents
Method of Controlling the Torque of an Asynchronous MachineInfo
- Publication number
- GB1188145A GB1188145A GB30959/67A GB3095967A GB1188145A GB 1188145 A GB1188145 A GB 1188145A GB 30959/67 A GB30959/67 A GB 30959/67A GB 3095967 A GB3095967 A GB 3095967A GB 1188145 A GB1188145 A GB 1188145A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- motor
- controller
- torque
- frequency
- 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
- H02P27/06—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
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/40—Regulating or controlling the amount of current drawn or delivered by the motor for controlling the mechanical load
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
1,188,145. Control of A.C. motors. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 5 July, 1967 [5 July, 1966], No. 30959/67. Heading H2J. In a torque control system, a three-phase induction motor 3 is fed from a direct-current source Ug through inverter 1 whose output voltage is variable in frequency and amplitude. A signal Ii, representing the motor current, is compared with a reference signal Is, and the error signal is applied to a controller 4 for the inverter. A digital generator 5 is coupled to the motor and provides a rotational frequency signal fn which is added to a slip frequency signal fs to form a sum frequency signal f, the latter being applied to the controller 4 also. Function generators 11, 12 enable the signals Is and fs to be adjusted in such a manner that the main flux of the motor remains constant. A superimposed speed control is provided by analogue signal ni which is formed from the signal fn by converter 8 and is compared with reference signal ns. The difference signal is amplified and applied to the function generators 11, 12. A function generator 13 receives a signal dependent upon the slip frequency, and its output signal represents the phase angle between the stator current and main flux in analogue form. Unit 14 converts this output signal to pulse form for application to the controller 4. This enables rapid changes in the torque to be effected without a sudden change in the spatial relationship between the rotating field and the rotor taking place. To improve the dynamic behaviour of the motor at high speeds, the output of the function generator 13 is modified by a signal derived from the converter 8.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEL0053983 | 1966-07-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1188145A true GB1188145A (en) | 1970-04-15 |
Family
ID=7275821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30959/67A Expired GB1188145A (en) | 1966-07-05 | 1967-07-05 | Method of Controlling the Torque of an Asynchronous Machine |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE700871A (en) |
DE (1) | DE1563228B2 (en) |
GB (1) | GB1188145A (en) |
LU (1) | LU53937A1 (en) |
NL (1) | NL6708954A (en) |
NO (1) | NO123972B (en) |
SE (1) | SE333979B (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2361339A1 (en) * | 1973-12-08 | 1975-06-19 | Bbc Brown Boveri & Cie | METHOD OF REGULATING THE TORQUE OF AN ASYNCHRONOUS MACHINE |
FR2404859A1 (en) * | 1977-09-28 | 1979-04-27 | Uranit Gmbh | PROCESS AND INSTALLATION FOR DETERMINING THE MAGNETIC CHARACTERISTICS OF THE ROTOR OF A HYSTERESIS MOTOR |
RU2576330C1 (en) * | 2014-09-23 | 2016-02-27 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" | Alternating current electric drive |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2452833C2 (en) * | 1974-11-07 | 1984-02-02 | Brown, Boveri & Cie Ag, 6800 Mannheim | Arrangement for controlling the torque of a synchronous machine fed by a converter with voltages of adjustable amplitude and frequency |
DE2637116A1 (en) * | 1975-08-19 | 1977-03-03 | Gen Electric | INDUCTION MOTOR CONTROL ARRANGEMENT |
JPS5396423A (en) * | 1977-02-01 | 1978-08-23 | Mitsubishi Electric Corp | Control system for induction motor |
DE2952325C2 (en) * | 1979-12-24 | 1986-11-27 | Brown, Boveri & Cie Ag, 6800 Mannheim | Method for controlling the torque and / or the speed of an asynchronous machine fed by a converter with impressed intermediate circuit current |
-
1966
- 1966-07-05 DE DE19661563228 patent/DE1563228B2/en not_active Withdrawn
-
1967
- 1967-06-21 SE SE08834/67A patent/SE333979B/xx unknown
- 1967-06-21 LU LU53937D patent/LU53937A1/xx unknown
- 1967-06-21 NO NO168697A patent/NO123972B/no unknown
- 1967-06-27 NL NL6708954A patent/NL6708954A/xx unknown
- 1967-07-03 BE BE700871D patent/BE700871A/xx unknown
- 1967-07-05 GB GB30959/67A patent/GB1188145A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2361339A1 (en) * | 1973-12-08 | 1975-06-19 | Bbc Brown Boveri & Cie | METHOD OF REGULATING THE TORQUE OF AN ASYNCHRONOUS MACHINE |
FR2404859A1 (en) * | 1977-09-28 | 1979-04-27 | Uranit Gmbh | PROCESS AND INSTALLATION FOR DETERMINING THE MAGNETIC CHARACTERISTICS OF THE ROTOR OF A HYSTERESIS MOTOR |
RU2576330C1 (en) * | 2014-09-23 | 2016-02-27 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" | Alternating current electric drive |
Also Published As
Publication number | Publication date |
---|---|
SE333979B (en) | 1971-04-05 |
LU53937A1 (en) | 1967-08-21 |
BE700871A (en) | 1967-12-18 |
DE1563228A1 (en) | 1970-03-19 |
NL6708954A (en) | 1968-01-08 |
NO123972B (en) | 1972-02-07 |
DE1563228B2 (en) | 1972-04-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |