JPS57130116A - Speed controlling device for expansion turbine - Google Patents
Speed controlling device for expansion turbineInfo
- Publication number
- JPS57130116A JPS57130116A JP56014338A JP1433881A JPS57130116A JP S57130116 A JPS57130116 A JP S57130116A JP 56014338 A JP56014338 A JP 56014338A JP 1433881 A JP1433881 A JP 1433881A JP S57130116 A JPS57130116 A JP S57130116A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- expansion turbine
- difference
- turbine
- load
- 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
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/18—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor
- H02P3/22—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an ac motor by short-circuit or resistive braking
-
- 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
- H02P2103/00—Controlling arrangements characterised by the type of generator
- H02P2103/20—Controlling arrangements characterised by the type of generator of the synchronous type
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Velocity Or Acceleration (AREA)
Abstract
PURPOSE:To improve the operability and the reliability, by providing a switching circuit, which makes a load current continuous, between a generator, which is used as a damping machine of the expansion turbine, and a load to control the turbine in accordance with the difference between the real speed and a set speed of the turbine. CONSTITUTION:An AC output generated from a synchronous generator 2 by an expansion turbine 1 is rectified in a part 7 and is absorbed through a transistor (TR) 10 by a load 3. The frequency of the output of the synchronous generator 2 is converted to a voltage signal by an F/V converter 19, and a speed set by a speed setting equipment 5 is converted to a voltage signal also, and the difference between both voltages is amplified in a part 18 as the difference between the real speed and the set speed. When the actual rotational frequency of the expansion turbine 1 is larger than the set value, the difference between the output voltage of the F/V converter 19 and the voltage of the setting equipment becomes positive and is amplified in a part 18 to turn on a TR 24, and the turn- on time of a TR 23 and the TR 10 of the switching circuit is longer, and the time of the load state of the synchronous generator 2 is longer; and when the actual rotational frequency of the expansion turbine 1 is smaller than the set value, the time of this load state is shorter. Thus, the rotational frequency is controlled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56014338A JPS57130116A (en) | 1981-02-04 | 1981-02-04 | Speed controlling device for expansion turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56014338A JPS57130116A (en) | 1981-02-04 | 1981-02-04 | Speed controlling device for expansion turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57130116A true JPS57130116A (en) | 1982-08-12 |
Family
ID=11858272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56014338A Pending JPS57130116A (en) | 1981-02-04 | 1981-02-04 | Speed controlling device for expansion turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57130116A (en) |
-
1981
- 1981-02-04 JP JP56014338A patent/JPS57130116A/en active Pending
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