JPS54154025A - Method of starting inverter - Google Patents
Method of starting inverterInfo
- Publication number
- JPS54154025A JPS54154025A JP6316478A JP6316478A JPS54154025A JP S54154025 A JPS54154025 A JP S54154025A JP 6316478 A JP6316478 A JP 6316478A JP 6316478 A JP6316478 A JP 6316478A JP S54154025 A JPS54154025 A JP S54154025A
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- inverter
- voltage
- starting
- output
- 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
Landscapes
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To simplify the starting and inching operation of an inverter by raising the output frequence and voltage set values of the inverter to gradually raise the output voltage via a cushion circuit and to thereafter raise the output frequency.
CONSTITUTION: An inverter is started at set frequency (or at maximum frequency) to lower the inverter frequency to a motor revolution speed by a frequency control operation. In case where the inverter is started at the set frequency as it is, an eddy current takes place. In order to prevent the eddy current, a cushion is inserted to the set voltage (set frequency) to gradually raise the voltage. That is, a switch Ry is so controlled as to set the ordinal gain of a frequency amplifier 2 to 1 during stoppage of the operation and to become normal gain upon starting of the inverter. A setting potentiometer 1 is always set to setting voltage regardless of the stoppage or starting.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6316478A JPS54154025A (en) | 1978-05-25 | 1978-05-25 | Method of starting inverter |
SE7904484A SE446300B (en) | 1978-05-25 | 1979-05-22 | Medical composition containing para-aminobenzoic acid-N-L-rhamnoside |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6316478A JPS54154025A (en) | 1978-05-25 | 1978-05-25 | Method of starting inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54154025A true JPS54154025A (en) | 1979-12-04 |
Family
ID=13221321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6316478A Pending JPS54154025A (en) | 1978-05-25 | 1978-05-25 | Method of starting inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154025A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61196794A (en) * | 1985-02-21 | 1986-08-30 | Nippon Electric Ind Co Ltd | Inverter for driving ac motor countermeasured for power interruption and recovery times |
-
1978
- 1978-05-25 JP JP6316478A patent/JPS54154025A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61196794A (en) * | 1985-02-21 | 1986-08-30 | Nippon Electric Ind Co Ltd | Inverter for driving ac motor countermeasured for power interruption and recovery times |
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