JPS5463218A - Controller of dc ac converting circuit - Google Patents
Controller of dc ac converting circuitInfo
- Publication number
- JPS5463218A JPS5463218A JP12911277A JP12911277A JPS5463218A JP S5463218 A JPS5463218 A JP S5463218A JP 12911277 A JP12911277 A JP 12911277A JP 12911277 A JP12911277 A JP 12911277A JP S5463218 A JPS5463218 A JP S5463218A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- output
- circuit
- frequency
- signal generating
- 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
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To enable performing a motor stable smooth operation by suppressing and controlling an inverter output voltage lower than a proportional value for a frequency at a regenerative braking time.
CONSTITUTION: A voltage compensating circuit 14 receives a DC voltage VDC output from a rectifier 2 through a varibale resistor and an output of a slant signal generating circuit 7, discriminates a polarity of the DC voltage VDC and in case of negative i.e. when a motor 5 is under a regenerative braking start, the above mentioned megative voltage is applied to a voltage controlling circuit 8 according to an output value of the slant signal generating circuit 7 and performs a compensating action so as an inverter output voltage V and a frequency f to be a curve C shown in the drawing.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12911277A JPS5463218A (en) | 1977-10-27 | 1977-10-27 | Controller of dc ac converting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12911277A JPS5463218A (en) | 1977-10-27 | 1977-10-27 | Controller of dc ac converting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5463218A true JPS5463218A (en) | 1979-05-22 |
Family
ID=15001356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12911277A Pending JPS5463218A (en) | 1977-10-27 | 1977-10-27 | Controller of dc ac converting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463218A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5889089A (en) * | 1981-11-20 | 1983-05-27 | Hitachi Ltd | Controlling method for variable voltage and variable frequency inverter of induction motor |
JPS60229696A (en) * | 1984-04-27 | 1985-11-15 | Toshiba Corp | Frequency variable power source |
JPS61144799U (en) * | 1985-02-26 | 1986-09-06 |
-
1977
- 1977-10-27 JP JP12911277A patent/JPS5463218A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5889089A (en) * | 1981-11-20 | 1983-05-27 | Hitachi Ltd | Controlling method for variable voltage and variable frequency inverter of induction motor |
JPS60229696A (en) * | 1984-04-27 | 1985-11-15 | Toshiba Corp | Frequency variable power source |
JPS61144799U (en) * | 1985-02-26 | 1986-09-06 | ||
JPH0441759Y2 (en) * | 1985-02-26 | 1992-09-30 |
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