JPS5288720A - Frequency converting system - Google Patents
Frequency converting systemInfo
- Publication number
- JPS5288720A JPS5288720A JP529976A JP529976A JPS5288720A JP S5288720 A JPS5288720 A JP S5288720A JP 529976 A JP529976 A JP 529976A JP 529976 A JP529976 A JP 529976A JP S5288720 A JPS5288720 A JP S5288720A
- Authority
- JP
- Japan
- Prior art keywords
- frequency converting
- converting system
- settled
- value
- speed
- 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 perform the stable speed control even in an open loop by means that at the time of normal and reversed rotational acceleration and of settled speed of an alternating current motor, when the output current has overstepped the settled value, the output frequency is dwindled to control V/F ratio to be within the settled value.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP529976A JPS5288720A (en) | 1976-01-20 | 1976-01-20 | Frequency converting system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP529976A JPS5288720A (en) | 1976-01-20 | 1976-01-20 | Frequency converting system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5288720A true JPS5288720A (en) | 1977-07-25 |
JPS5628477B2 JPS5628477B2 (en) | 1981-07-02 |
Family
ID=11607357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP529976A Granted JPS5288720A (en) | 1976-01-20 | 1976-01-20 | Frequency converting system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5288720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5878799U (en) * | 1981-11-24 | 1983-05-27 | 株式会社荏原製作所 | Pump device powered by solar cells |
-
1976
- 1976-01-20 JP JP529976A patent/JPS5288720A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5878799U (en) * | 1981-11-24 | 1983-05-27 | 株式会社荏原製作所 | Pump device powered by solar cells |
Also Published As
Publication number | Publication date |
---|---|
JPS5628477B2 (en) | 1981-07-02 |
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