JPS57119689A - Controlling device for secondary excitation of induction motor - Google Patents
Controlling device for secondary excitation of induction motorInfo
- Publication number
- JPS57119689A JPS57119689A JP570381A JP570381A JPS57119689A JP S57119689 A JPS57119689 A JP S57119689A JP 570381 A JP570381 A JP 570381A JP 570381 A JP570381 A JP 570381A JP S57119689 A JPS57119689 A JP S57119689A
- Authority
- JP
- Japan
- Prior art keywords
- speed setting
- motor
- signal
- setting device
- controller
- 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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
- H02P21/08—Indirect field-oriented control; Rotor flux feed-forward control
- H02P21/09—Field phase angle calculation based on rotor voltage equation by adding slip frequency and speed proportional frequency
-
- 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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/08—Controlling based on slip frequency, e.g. adding slip frequency and speed proportional frequency
Landscapes
- Motor And Converter Starters (AREA)
Abstract
PURPOSE:To ensure the operation of a power converter device by a method wherein an auxiliary speed setting device is provided in addition to a main speed setting device and a speed signal is fed from the auxiliary speed setting device for a fixed period during the starting time of the operation for the secondary exciting control device in starting an induction motor. CONSTITUTION:The rotating speed signal of an induction motor 3 and a signal applied to a delay circuit from two speed setting devices 9, 19 through switching circuits 20, 21 are compared by a controller 11 and furthermore, the output in the controller 11 and the output current in a power converter divice 7 are compared by a controller 12 to generate a gate signal in the converter device 7 controlling the secondary output in the motor 3. Therefore, the motor is controlled by the signal from an auxiliary speed setting device 19 at the time of staring the operation for the secondary exciting control device in starting the motor and the speed of the motor 3 can always be maintained within a range of controlling the power converter device 7 by switching to a main speed setting device after passing a certain period and the inability of control such as interruption can be prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP570381A JPS57119689A (en) | 1981-01-16 | 1981-01-16 | Controlling device for secondary excitation of induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP570381A JPS57119689A (en) | 1981-01-16 | 1981-01-16 | Controlling device for secondary excitation of induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57119689A true JPS57119689A (en) | 1982-07-26 |
Family
ID=11618466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP570381A Pending JPS57119689A (en) | 1981-01-16 | 1981-01-16 | Controlling device for secondary excitation of induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57119689A (en) |
-
1981
- 1981-01-16 JP JP570381A patent/JPS57119689A/en active Pending
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