JPS55160991A - Control system for induction motor - Google Patents
Control system for induction motorInfo
- Publication number
- JPS55160991A JPS55160991A JP6770179A JP6770179A JPS55160991A JP S55160991 A JPS55160991 A JP S55160991A JP 6770179 A JP6770179 A JP 6770179A JP 6770179 A JP6770179 A JP 6770179A JP S55160991 A JPS55160991 A JP S55160991A
- Authority
- JP
- Japan
- Prior art keywords
- slip
- secondary current
- control loop
- frequency
- value
- 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.)
- Granted
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
- H02P27/06—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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To improve the controlling properties and to dispense with installation of a tachometer generator, by detecting the speed of revolution from a primary voltage frequency signal and equalizing the response speeds of the secondary current control loop and the slip frequency control loop to each other. CONSTITUTION:The detected output voltage value of a power inverter 3, a detected primary current value and a primary voltage frequency signal are applied to the slip angular frequency calculation circuit 22. Set values for the secondary current and the slip frequency are obtained from the difference between the primary voltage frequency signal and the set value. In the secondary current control loop, the secondary current is calculated by the seconary current calculation circuit 25 to control a power rectifier 1 through a phase regulator 28. In the slip frequency control loop, the power inverter 3 is controlled through a distributor 11 on the basis of the slip frequency value calculated by the circuit 22. As a result, the ratio of the secondary current to the slip angular frequency can be kept constant even in a transient state. Controlling properties are thus improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54067701A JPS6031195B2 (en) | 1979-05-30 | 1979-05-30 | Control method of induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54067701A JPS6031195B2 (en) | 1979-05-30 | 1979-05-30 | Control method of induction motor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160991A true JPS55160991A (en) | 1980-12-15 |
JPS6031195B2 JPS6031195B2 (en) | 1985-07-20 |
Family
ID=13352514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54067701A Expired JPS6031195B2 (en) | 1979-05-30 | 1979-05-30 | Control method of induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6031195B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6318986A (en) * | 1986-07-10 | 1988-01-26 | Nissan Motor Co Ltd | Controller for induction motor |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4767970A (en) * | 1986-12-22 | 1988-08-30 | Ampex Corporation | Dynamic brake control for a tape drive system |
JPH01209970A (en) * | 1988-02-15 | 1989-08-23 | Sankyo Seiki Mfg Co Ltd | Dynamic braking device for motor |
-
1979
- 1979-05-30 JP JP54067701A patent/JPS6031195B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6318986A (en) * | 1986-07-10 | 1988-01-26 | Nissan Motor Co Ltd | Controller for induction motor |
Also Published As
Publication number | Publication date |
---|---|
JPS6031195B2 (en) | 1985-07-20 |
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