JPS5446320A - Detecting method of slip or slip frequency - Google Patents
Detecting method of slip or slip frequencyInfo
- Publication number
- JPS5446320A JPS5446320A JP11311277A JP11311277A JPS5446320A JP S5446320 A JPS5446320 A JP S5446320A JP 11311277 A JP11311277 A JP 11311277A JP 11311277 A JP11311277 A JP 11311277A JP S5446320 A JPS5446320 A JP S5446320A
- Authority
- JP
- Japan
- Prior art keywords
- slip
- frequency
- inverter
- detected signal
- current
- 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
Abstract
PURPOSE: To obtain highly accurate detected signal by detecting desired slip frequency or slip from three detected signals of inverter functional frequency, DC current in DC intermediate circuit and inverter AC output voltage.
CONSTITUTION: Inverter functional frequency wO, DC current Id (or AC input current Ii) in DC intermediate circuit and inverter AC output voltage Ea (or induced voltage of load motor) are taken out, and desired slip frequency or slip is detected on the basis of said signals. With such method highly accurate detected signal is obtained without depending on speed detected signal at all
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11311277A JPS5446320A (en) | 1977-09-20 | 1977-09-20 | Detecting method of slip or slip frequency |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11311277A JPS5446320A (en) | 1977-09-20 | 1977-09-20 | Detecting method of slip or slip frequency |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5446320A true JPS5446320A (en) | 1979-04-12 |
JPS5738112B2 JPS5738112B2 (en) | 1982-08-13 |
Family
ID=14603800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11311277A Granted JPS5446320A (en) | 1977-09-20 | 1977-09-20 | Detecting method of slip or slip frequency |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5446320A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5266918A (en) * | 1975-12-01 | 1977-06-02 | Hitachi Ltd | Slip-detecter of induction motor |
JPS52113113A (en) * | 1976-03-11 | 1977-09-22 | Kinsekisha Lab Ltd | Transmitter |
-
1977
- 1977-09-20 JP JP11311277A patent/JPS5446320A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5266918A (en) * | 1975-12-01 | 1977-06-02 | Hitachi Ltd | Slip-detecter of induction motor |
JPS52113113A (en) * | 1976-03-11 | 1977-09-22 | Kinsekisha Lab Ltd | Transmitter |
Also Published As
Publication number | Publication date |
---|---|
JPS5738112B2 (en) | 1982-08-13 |
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