JPS6450783A - Controller for induction motor - Google Patents
Controller for induction motorInfo
- Publication number
- JPS6450783A JPS6450783A JP62205930A JP20593087A JPS6450783A JP S6450783 A JPS6450783 A JP S6450783A JP 62205930 A JP62205930 A JP 62205930A JP 20593087 A JP20593087 A JP 20593087A JP S6450783 A JPS6450783 A JP S6450783A
- Authority
- JP
- Japan
- Prior art keywords
- current
- voltage
- arithmetic circuit
- motor
- primary
- 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
Landscapes
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To need no detection of primary current and execute non-interference control excellent in responsiveness, by finding the primary current of a motor necessary for non-interference processing, through arithmetic operation. CONSTITUTION:By the regulation of voltage ebeta' with an arithmetic circuit 15, voltage e1 is turned into a waveform modulated with the period(60 deg.) of a vector, and then, current is set to be constant, and the torque pulsating of a motor 7 is suppressed. Then, current i1alpha, i1beta, or the like necessary for non-interference processing in arithmetic circuits 13, 14 is found by a voltage arithmetic circuit 18, a current arithmetic circuit 19, and a converter circuit 20. By the voltage arithmetic circuit 18, alpha-phase voltage e1alpha is found from the primary voltage e1. To the current arithmetic circuit 19, the input of the alpha-phase voltage e1alpha, the current command e1beta', power angular-frequency omega0, and rotor angular- frequency omegar is provided, and from these signals and motor constant, the primary current i1alpha, i1beta is found. Accordingly, the non-interference processing for needing no detection of the primary current of the motor 7 on finding the primary current i1alpha, i1beta can be executed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62205930A JP2689434B2 (en) | 1987-08-19 | 1987-08-19 | Induction motor control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62205930A JP2689434B2 (en) | 1987-08-19 | 1987-08-19 | Induction motor control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6450783A true JPS6450783A (en) | 1989-02-27 |
JP2689434B2 JP2689434B2 (en) | 1997-12-10 |
Family
ID=16515093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62205930A Expired - Fee Related JP2689434B2 (en) | 1987-08-19 | 1987-08-19 | Induction motor control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2689434B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60237880A (en) * | 1984-05-11 | 1985-11-26 | Drive Syst Kk | Speed control pam type inverter of 3-phase induction motor |
-
1987
- 1987-08-19 JP JP62205930A patent/JP2689434B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60237880A (en) * | 1984-05-11 | 1985-11-26 | Drive Syst Kk | Speed control pam type inverter of 3-phase induction motor |
Also Published As
Publication number | Publication date |
---|---|
JP2689434B2 (en) | 1997-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |