JPS5671497A - Excitation control device for rotary machine - Google Patents
Excitation control device for rotary machineInfo
- Publication number
- JPS5671497A JPS5671497A JP14905579A JP14905579A JPS5671497A JP S5671497 A JPS5671497 A JP S5671497A JP 14905579 A JP14905579 A JP 14905579A JP 14905579 A JP14905579 A JP 14905579A JP S5671497 A JPS5671497 A JP S5671497A
- Authority
- JP
- Japan
- Prior art keywords
- field current
- signal
- generator
- amplifier
- subtractor
- 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
-
- 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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
PURPOSE:To alleviate a shock to a generator at an overexcitation limiting time by supplying an overexcitation limiting signal in primary delay state. CONSTITUTION:A subtractor 16 subtracts a signal equal to the square of the rated field current from a signal squared by the field current. An operational amplifier 14 squares the deviation signal between the field current and the allowable field current. If the field current becomes higher than the allowable field current, a relay 11 is operated to open the contact 71b. Thus, an operational amplifier 21 integrates the signal of adding the outputs of the subtractor 16 and the amplifier 14. If the output of the amplifier 21 exceeds the set value, a relay 24 is operated, the deviation signal is applied through a primary delay circuit to an automatic voltage regulator 4. Thus, it can contribute to the recovery of the system voltage up to the limit of the capacity of the generator, and the shock to the generator can be alleviat ed at the excitation limiting time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14905579A JPS5671497A (en) | 1979-11-14 | 1979-11-14 | Excitation control device for rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14905579A JPS5671497A (en) | 1979-11-14 | 1979-11-14 | Excitation control device for rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5671497A true JPS5671497A (en) | 1981-06-15 |
Family
ID=15466669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14905579A Pending JPS5671497A (en) | 1979-11-14 | 1979-11-14 | Excitation control device for rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5671497A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938885A (en) * | 1972-08-17 | 1974-04-11 | ||
| JPS5370316A (en) * | 1976-12-06 | 1978-06-22 | Hitachi Ltd | Generator excess excitation preventing control device |
-
1979
- 1979-11-14 JP JP14905579A patent/JPS5671497A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4938885A (en) * | 1972-08-17 | 1974-04-11 | ||
| JPS5370316A (en) * | 1976-12-06 | 1978-06-22 | Hitachi Ltd | Generator excess excitation preventing control device |
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