JPS57153596A - Normal and reverse operating method for induction motor by voltage type inverter - Google Patents
Normal and reverse operating method for induction motor by voltage type inverterInfo
- Publication number
- JPS57153596A JPS57153596A JP56038540A JP3854081A JPS57153596A JP S57153596 A JPS57153596 A JP S57153596A JP 56038540 A JP56038540 A JP 56038540A JP 3854081 A JP3854081 A JP 3854081A JP S57153596 A JPS57153596 A JP S57153596A
- Authority
- JP
- Japan
- Prior art keywords
- low speed
- normal
- signal
- phase sequence
- reverse
- 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
- H02P23/24—Controlling the direction, e.g. clockwise or counterclockwise
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE:To normally and reversely operate an induction motor without contact by eliminating the switching of a phase sequence even if normal or reverse switching command is applied during high speed operation and switching the phase sequence only in the low speed range, thereby reducing the size of the motor. CONSTITUTION:A low speed detector 7 which detects the fact the acceleration of deceleration speed limiting instruction value of an acceleration or deceleration speed limiter 6 is lower than the low speed level, an oscillator 8 which oscillates a clock pulse upon throwing of a controlling power source, and a memory circuit 10 which calculates the logical product of the clock pulse signal of the oscillator 8 and the detection signal of the detector 7 and storing the normal or reverse instruction signal by the output pulse signal of the logic product are provided. The phase sequence of the drive signals of a driving circuit 16 of an inverter is switched in accordance with the normal or reverse instruction signal set by the memory circuit 10. That is, when the accleration or deceleration control instruction value is lower than the low speed level, the output of the drive signal to the driving circuit 16 of the inverter is stopped, and when it is higher than the low speed level, the drive signal is produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56038540A JPS57153596A (en) | 1981-03-17 | 1981-03-17 | Normal and reverse operating method for induction motor by voltage type inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56038540A JPS57153596A (en) | 1981-03-17 | 1981-03-17 | Normal and reverse operating method for induction motor by voltage type inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57153596A true JPS57153596A (en) | 1982-09-22 |
Family
ID=12528110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56038540A Pending JPS57153596A (en) | 1981-03-17 | 1981-03-17 | Normal and reverse operating method for induction motor by voltage type inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57153596A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6135195A (en) * | 1984-07-24 | 1986-02-19 | Fujikin:Kk | Controller for pulse motor |
JPS61251484A (en) * | 1985-04-26 | 1986-11-08 | Mitsubishi Electric Corp | Pwm control circuit of inverter |
-
1981
- 1981-03-17 JP JP56038540A patent/JPS57153596A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6135195A (en) * | 1984-07-24 | 1986-02-19 | Fujikin:Kk | Controller for pulse motor |
JPS61251484A (en) * | 1985-04-26 | 1986-11-08 | Mitsubishi Electric Corp | Pwm control circuit of inverter |
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