JPS57177295A - Controller for inverter - Google Patents
Controller for inverterInfo
- Publication number
- JPS57177295A JPS57177295A JP56059716A JP5971681A JPS57177295A JP S57177295 A JPS57177295 A JP S57177295A JP 56059716 A JP56059716 A JP 56059716A JP 5971681 A JP5971681 A JP 5971681A JP S57177295 A JPS57177295 A JP S57177295A
- Authority
- JP
- Japan
- Prior art keywords
- microprocessor
- operating frequency
- phase angle
- delay phase
- 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.)
- Granted
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
- H02P23/0077—Characterised by the use of a particular software algorithm
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE:To always maximize the efficiency of an inverter by deciding the maximum efficiency operating frequency and a delay phase angle stored in advance by the set rotating speed, applying an operating frequency command to a power converter and regulating a voltage so that the delay phase angle is coincided. CONSTITUTION:A microprocessor 12 inputs the output of a rotating speed setter 3' through an A/D converter 11, outputs the value of the maximum operating frequency and the time conversion value of the delay phase angle of the output of a memory cell 13, and stores it in the internal memory unit. Control signals of respective phases are, for example, applied to a gate circuit 9 to allow the microprocessor 12 to outputs a PWM waveform signal to meet the maximum operating frequency. The output of a waveform shaping current zero detector 14 is inputted to the microprocessor 12, which reads by its internal timer the difference between the time of the zero point of the current and the time conversion value of the delay phase angle stored in the memory unit of the microprocessor 12, thereby regulating the ON-OFF width of the PWM waveform so that the time difference becomes zero.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56059716A JPS57177295A (en) | 1981-04-22 | 1981-04-22 | Controller for inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56059716A JPS57177295A (en) | 1981-04-22 | 1981-04-22 | Controller for inverter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57177295A true JPS57177295A (en) | 1982-10-30 |
| JPS615359B2 JPS615359B2 (en) | 1986-02-18 |
Family
ID=13121201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56059716A Granted JPS57177295A (en) | 1981-04-22 | 1981-04-22 | Controller for inverter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57177295A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59159695A (en) * | 1983-02-28 | 1984-09-10 | Matsushita Electric Ind Co Ltd | Controller of induction motor |
| JPS61500765A (en) * | 1983-12-19 | 1986-04-17 | サンドストランド・コ−ポレ−ション | Fault detection device and method for rotating rectifier unit |
-
1981
- 1981-04-22 JP JP56059716A patent/JPS57177295A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59159695A (en) * | 1983-02-28 | 1984-09-10 | Matsushita Electric Ind Co Ltd | Controller of induction motor |
| JPH0468873B2 (en) * | 1983-02-28 | 1992-11-04 | Matsushita Electric Ind Co Ltd | |
| JPS61500765A (en) * | 1983-12-19 | 1986-04-17 | サンドストランド・コ−ポレ−ション | Fault detection device and method for rotating rectifier unit |
| JPH057926B2 (en) * | 1983-12-19 | 1993-01-29 | Sundstrand Corp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS615359B2 (en) | 1986-02-18 |
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