JPS563589A - Control method for variable voltage and variable frequency inverter - Google Patents
Control method for variable voltage and variable frequency inverterInfo
- Publication number
- JPS563589A JPS563589A JP7685779A JP7685779A JPS563589A JP S563589 A JPS563589 A JP S563589A JP 7685779 A JP7685779 A JP 7685779A JP 7685779 A JP7685779 A JP 7685779A JP S563589 A JPS563589 A JP S563589A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- frequency
- speed command
- feed back
- command
- 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
- H02P23/20—Controlling the acceleration or deceleration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor And Converter Starters (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE:To obtain a signal to effectively accelerate an induction motor by passing a signal with a fixed acceleration factor through a function generator which corresponds to necessary acceleration wherein the signal is obtained from the deviation signal of a speed command and a frequency command feed back signal passed through a comparator and an integrator. CONSTITUTION:A speed command signal 1 is compared with the feed back signal of a frequency signal and the magnitude is judged by a comparator 2. As a result, if the frequency signal does not meet the speed command, the frequency is tried to raise with a fixed time constant by an integrator 3. However, the frequency is converted into predetermined acceleration characteristics by a function generator 4. This signal becomes a frequency command signal and is converted into the gate pulse trains of a corresponding frequency through a voltage control frequency oscillator 5 and a ring counter 6. The gate pulse trains are applied to the gate of an inverter 7 to raise the frequency applied to an induction motor 8. Meanwhile, the signal is also fed back to the speed command through a feed back gain 9 to judge whether the signal has been accelerated up to a predetermined frequency.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7685779A JPS563589A (en) | 1979-06-20 | 1979-06-20 | Control method for variable voltage and variable frequency inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7685779A JPS563589A (en) | 1979-06-20 | 1979-06-20 | Control method for variable voltage and variable frequency inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS563589A true JPS563589A (en) | 1981-01-14 |
Family
ID=13617315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7685779A Pending JPS563589A (en) | 1979-06-20 | 1979-06-20 | Control method for variable voltage and variable frequency inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS563589A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812583A (en) * | 1981-07-15 | 1983-01-24 | Tsurumi Seisakusho:Kk | Starting system of induction motor utilizing solar battery |
JPS5812584A (en) * | 1981-07-15 | 1983-01-24 | Tsurumi Seisakusho:Kk | Starting device of induction motor utilizing solar battery |
JPS60241781A (en) * | 1984-04-13 | 1985-11-30 | Mitsubishi Electric Corp | Controller for variable speed pump |
JPS6212398A (en) * | 1985-07-05 | 1987-01-21 | Mitsubishi Electric Corp | Controller for inverter |
-
1979
- 1979-06-20 JP JP7685779A patent/JPS563589A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5812583A (en) * | 1981-07-15 | 1983-01-24 | Tsurumi Seisakusho:Kk | Starting system of induction motor utilizing solar battery |
JPS5812584A (en) * | 1981-07-15 | 1983-01-24 | Tsurumi Seisakusho:Kk | Starting device of induction motor utilizing solar battery |
JPS60241781A (en) * | 1984-04-13 | 1985-11-30 | Mitsubishi Electric Corp | Controller for variable speed pump |
JPS6212398A (en) * | 1985-07-05 | 1987-01-21 | Mitsubishi Electric Corp | Controller for inverter |
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