JPS57206292A - Controlling device for variable speed motor - Google Patents
Controlling device for variable speed motorInfo
- Publication number
- JPS57206292A JPS57206292A JP56090339A JP9033981A JPS57206292A JP S57206292 A JPS57206292 A JP S57206292A JP 56090339 A JP56090339 A JP 56090339A JP 9033981 A JP9033981 A JP 9033981A JP S57206292 A JPS57206292 A JP S57206292A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- motor
- braking
- driving
- reset state
- 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.)
- Pending
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
- H02P27/16—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 to ac converters without intermediate conversion to dc
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To stabilize the operation of the titled motor by a method wherein driving-side and braking-side arithmetic operational amplifiers are provided independently, and when either of them is in an operational mode, the other amplifier is brought into a reset state, thereby enabling to prevent the change-over due to the instantaneous change of signal caused by disturbance and the like. CONSTITUTION:A speed setting signal and the signal of a tachometer generator 4 are compared by a head amplifier 22, the result of the above is given to the driving-side PI amplifier 23, and at the same time, the above is given to the braking-side PI amplifier 25 through the intermediary of a polarity inverter 24, the turn-on of a thyristor 10 is controlled through the intermediaries of pulse generators 6 and 8 respectively, and the motor 3 is controlled for variable speeds. At this time, the driving side and the braking side PI amplifiers 23 and 25 are connected thruogh the intermediary of a diode 49, the braking PI amplifier 25 is placed in a reset state while the motor 3 is in operation, and the driving-side PI amplifier 23 is put in a reset state while the motor is braked. Accordingly, a switching operation can be performed accurately even when there exists disturbance and the like, and a stabilized operation without a hunting can also be performed on the motor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56090339A JPS57206292A (en) | 1981-06-10 | 1981-06-10 | Controlling device for variable speed motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56090339A JPS57206292A (en) | 1981-06-10 | 1981-06-10 | Controlling device for variable speed motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57206292A true JPS57206292A (en) | 1982-12-17 |
Family
ID=13995755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56090339A Pending JPS57206292A (en) | 1981-06-10 | 1981-06-10 | Controlling device for variable speed motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206292A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986000766A1 (en) * | 1984-07-10 | 1986-01-30 | Fanuc Ltd | Method of and apparatus for controlling a synchronous motor |
-
1981
- 1981-06-10 JP JP56090339A patent/JPS57206292A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1986000766A1 (en) * | 1984-07-10 | 1986-01-30 | Fanuc Ltd | Method of and apparatus for controlling a synchronous motor |
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