JPS57196887A - Controller for induction motor - Google Patents
Controller for induction motorInfo
- Publication number
- JPS57196887A JPS57196887A JP56080052A JP8005281A JPS57196887A JP S57196887 A JPS57196887 A JP S57196887A JP 56080052 A JP56080052 A JP 56080052A JP 8005281 A JP8005281 A JP 8005281A JP S57196887 A JPS57196887 A JP S57196887A
- Authority
- JP
- Japan
- Prior art keywords
- slip frequency
- component
- power factor
- current
- 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.)
- 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
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To perform the control of a high speed current by applying the output of slip frequency compensating means for calculating the slip frequency of a transient state time by the power factor angle change of the primary current of a motor further as a slip frequency correcting signal. CONSTITUTION:A slip frequency compensating circuit 16 has a coordinates converter 16a which converts a secondary current I2 and an exciting current component I0 into equal phase component Icos and an orthogonal component Isin delayed by pi/2 from the component Icos via a voltage, arithmetic units 16b, for calculating and detecting the power factor angle, and a differentiator 16c for differentiating the output of the unit 16b and producing a slip frequency compensation signal omegaSB upon change of the power factor. The signal omegaSB is applied to an angular frequency omega* produced by a command from an adder 8', and a frequency command f* is produced by an adder 17.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56080052A JPS57196887A (en) | 1981-05-28 | 1981-05-28 | Controller for induction motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56080052A JPS57196887A (en) | 1981-05-28 | 1981-05-28 | Controller for induction motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57196887A true JPS57196887A (en) | 1982-12-02 |
Family
ID=13707462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56080052A Pending JPS57196887A (en) | 1981-05-28 | 1981-05-28 | Controller for induction motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57196887A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106537164A (en) * | 2013-12-30 | 2017-03-22 | Abb瑞士股份有限公司 | Method and system for detecting rotor fault |
-
1981
- 1981-05-28 JP JP56080052A patent/JPS57196887A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106537164A (en) * | 2013-12-30 | 2017-03-22 | Abb瑞士股份有限公司 | Method and system for detecting rotor fault |
CN106537164B (en) * | 2013-12-30 | 2019-03-08 | Abb瑞士股份有限公司 | For detecting the method and system of rotor fault |
US10353004B2 (en) | 2013-12-30 | 2019-07-16 | Abb Schweiz Ag | Method and system for detecting rotor fault using triaxial magnetic field sensor |
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