JPS5786921A - Controlling method for capacitor for reactive electric power compensation - Google Patents
Controlling method for capacitor for reactive electric power compensationInfo
- Publication number
- JPS5786921A JPS5786921A JP55163927A JP16392780A JPS5786921A JP S5786921 A JPS5786921 A JP S5786921A JP 55163927 A JP55163927 A JP 55163927A JP 16392780 A JP16392780 A JP 16392780A JP S5786921 A JPS5786921 A JP S5786921A
- Authority
- JP
- Japan
- Prior art keywords
- output
- forward voltage
- thyristor
- generates
- signal
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/70—Regulating power factor; Regulating reactive current or power
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
PURPOSE:To exercise high-speed control without permitting a large rush current to flow, by supplying a signal when a forward voltage has a minimum value within two cycles after one cycle if a signal which having from a backward voltage to a forward voltage within one cycle. CONSTITUTION:A feed command is sent out to detect the output of a circuit 5 varying from a 0 to a 1, and a pulse generator 8 generates a pulse which has 360 deg. width at the level 1. During this period, the output Q of an FF10-1 never goes to the 1 and an AND element 6-4 has an output 0, so an FF10-2 is still reset, so that a Q' is still the 1. While a forward voltage is applied to a thyristor Th1, inputs to an AND element 6-3 are both 1s by pulse generation 7-2 when an AND element 6-5 generates an output 1, a forward voltage detector 3-1 generates an output 1 and the forward voltage of the thyristor Th1 is minimized within a 360-720 deg. period after the feed command, and the output Q of an FF10-1 is set to a 1 through an OR circuit 12, sending a signal to the gate of the thyristor Th1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163927A JPS5786921A (en) | 1980-11-20 | 1980-11-20 | Controlling method for capacitor for reactive electric power compensation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55163927A JPS5786921A (en) | 1980-11-20 | 1980-11-20 | Controlling method for capacitor for reactive electric power compensation |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5786921A true JPS5786921A (en) | 1982-05-31 |
JPH0253802B2 JPH0253802B2 (en) | 1990-11-19 |
Family
ID=15783462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55163927A Granted JPS5786921A (en) | 1980-11-20 | 1980-11-20 | Controlling method for capacitor for reactive electric power compensation |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5786921A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5059759A (en) * | 1973-09-26 | 1975-05-23 | ||
JPS5330760A (en) * | 1976-09-02 | 1978-03-23 | Toshiba Corp | Switch device for condenser |
-
1980
- 1980-11-20 JP JP55163927A patent/JPS5786921A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5059759A (en) * | 1973-09-26 | 1975-05-23 | ||
JPS5330760A (en) * | 1976-09-02 | 1978-03-23 | Toshiba Corp | Switch device for condenser |
Also Published As
Publication number | Publication date |
---|---|
JPH0253802B2 (en) | 1990-11-19 |
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