JPS57160383A - Speed controlling device of induction motor - Google Patents
Speed controlling device of induction motorInfo
- Publication number
- JPS57160383A JPS57160383A JP56043450A JP4345081A JPS57160383A JP S57160383 A JPS57160383 A JP S57160383A JP 56043450 A JP56043450 A JP 56043450A JP 4345081 A JP4345081 A JP 4345081A JP S57160383 A JPS57160383 A JP S57160383A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- converter
- counter
- outputs
- induction motor
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To control speed with high response by providing a counter that integrates the sum of outputs of a speed detector and a command drvice, and a read only memory that commands the primary current with the input from the counter. CONSTITUTION:A counter 7 counts pulses generated by a pulse generator 6 by an adder 5 adding the outputs of a rotor slide angle command device 4 and a speed detector 2. The slide angle speed is digitized by an A/D converter 8 and the both outputs are supplied to ROM9, D/A converter 10 and ROM11, D/A converter 12 to output the first and the second primary coil current, and the third primary coil current is outputted via a signal inversion adder 13. The speed is controlled by the output of a power amplifier 14 fed to the induction motor 1. Complicated operation is performed by simplified construction supplying the primary current without delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56043450A JPS57160383A (en) | 1981-03-24 | 1981-03-24 | Speed controlling device of induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56043450A JPS57160383A (en) | 1981-03-24 | 1981-03-24 | Speed controlling device of induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57160383A true JPS57160383A (en) | 1982-10-02 |
Family
ID=12664034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56043450A Pending JPS57160383A (en) | 1981-03-24 | 1981-03-24 | Speed controlling device of induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57160383A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154312A2 (en) * | 1984-03-05 | 1985-09-11 | Hitachi, Ltd. | Load drive apparatus |
-
1981
- 1981-03-24 JP JP56043450A patent/JPS57160383A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154312A2 (en) * | 1984-03-05 | 1985-09-11 | Hitachi, Ltd. | Load drive apparatus |
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