JPS5599618A - Control method for circulating current - Google Patents
Control method for circulating currentInfo
- Publication number
- JPS5599618A JPS5599618A JP556579A JP556579A JPS5599618A JP S5599618 A JPS5599618 A JP S5599618A JP 556579 A JP556579 A JP 556579A JP 556579 A JP556579 A JP 556579A JP S5599618 A JPS5599618 A JP S5599618A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- circulating current
- current control
- load current
- level
- 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 Electrical Variables (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
PURPOSE: To reduce the power consumption for the cross connection converting device which flows the circulating current between two sets of converters, by stopping the circulating current when the load current becomes less than the prescribed level.
CONSTITUTION: The detection level of level detector circuit 12 is set to the fixed level. And it is supposed that converters 1-1 and 1-2 are controlled by load current control circuit 5 and circulating current control circuit 6 respectively. When the load current exceeds the prescribed level, the signals are transmitted from circuit 12 to circulating current control interruption circuit 13 and logic circuit 14. Circuit 13 applies the fixed bias value to circuit 6 via the output signal of circuit 12 to delay the ignition angle of converter 1-2 and also stop the circulating current. Circuit 14 memorizes the converter performing the circulating current control via the output of load current reference polarity decision circuit 11, and sends the gate block signal to converter 1-2 with an appropriate time limit via the output signal of circuit 12. In case the load current is less than the prescribed level, the output signal of circuit 12 is inverted with the output of circuit 13 turned to zero. Thus the block signal of circuit 14 is released to give the circulating current control.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP556579A JPS5599618A (en) | 1979-01-23 | 1979-01-23 | Control method for circulating current |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP556579A JPS5599618A (en) | 1979-01-23 | 1979-01-23 | Control method for circulating current |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5599618A true JPS5599618A (en) | 1980-07-29 |
Family
ID=11614725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP556579A Pending JPS5599618A (en) | 1979-01-23 | 1979-01-23 | Control method for circulating current |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5599618A (en) |
-
1979
- 1979-01-23 JP JP556579A patent/JPS5599618A/en active Pending
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