JPS5771024A - Voltage correction system in alternating-current control - Google Patents
Voltage correction system in alternating-current controlInfo
- Publication number
- JPS5771024A JPS5771024A JP14739380A JP14739380A JPS5771024A JP S5771024 A JPS5771024 A JP S5771024A JP 14739380 A JP14739380 A JP 14739380A JP 14739380 A JP14739380 A JP 14739380A JP S5771024 A JPS5771024 A JP S5771024A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- ignition angle
- phi
- deltav
- circuit
- 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
-
- 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
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is AC
- G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices
- G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices semiconductor devices only
- G05F1/45—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load
- G05F1/455—Regulating voltage or current wherein the variable actually regulated by the final control device is AC using discharge tubes or semiconductor devices as final control devices semiconductor devices only being controlled rectifiers in series with the load with phase control
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Control Of Electrical Variables (AREA)
Abstract
PURPOSE:To suppress transient variations in current low by calculating a corrected ignition angle DELTAalpha for a predetermined load power factor phi, ignition angle alpha, and power voltage deviation DELTAV, and by storing it in a memory in the form of a function of the DELTAV, alpha, and phi. CONSTITUTION:A voltage deviation detection part 10 detects the voltage variations of a power source 5 in every half cycle to output a DELTAV, and a function f(DELTAV) stored in a memory 11 is read out and inputted to a multiplying circuit 15. On the other hand, a circuit 12 which measures and stores a current lagging angle theta stores the theta of an ignition angle 90 deg. right after the starting of operation, and it is used as the address of a memory 13 storing a theta-to-phi function to read a power factor phi from the memory 13, thereby inputting it to a memory 14. An ignition angle is inputted from a control system to the memory 14 to output a function f(alpha, phi), which is inputted to a circuit. The circuit 15 outputs the corrected ignition angle DELTAalpha of an f(DELTAV)Xf(alpha, phi), which is multiplied by a coefficient at a coefficient circuit 16, whose output is added to the ignition angle from the control system, thereby using the sum as the ignition angle of the next cycle of an operation part 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14739380A JPS5771024A (en) | 1980-10-21 | 1980-10-21 | Voltage correction system in alternating-current control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14739380A JPS5771024A (en) | 1980-10-21 | 1980-10-21 | Voltage correction system in alternating-current control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771024A true JPS5771024A (en) | 1982-05-01 |
Family
ID=15429246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14739380A Pending JPS5771024A (en) | 1980-10-21 | 1980-10-21 | Voltage correction system in alternating-current control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771024A (en) |
-
1980
- 1980-10-21 JP JP14739380A patent/JPS5771024A/en active Pending
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