JPS5459501A - Controller for water supply pump drive turbine - Google Patents
Controller for water supply pump drive turbineInfo
- Publication number
- JPS5459501A JPS5459501A JP12577077A JP12577077A JPS5459501A JP S5459501 A JPS5459501 A JP S5459501A JP 12577077 A JP12577077 A JP 12577077A JP 12577077 A JP12577077 A JP 12577077A JP S5459501 A JPS5459501 A JP S5459501A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- water supply
- operator
- actual
- low
- 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 Turbines (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To stabilize the control of a low r.p.m. range thereby to make it possible to effect the control of accurate water supply by providing a non-linear circuit, which imparts the linear characteristics to the differential signals between the actual flow rate and the water supply demand, so that the differential signals may become coincident with the actual turbine r.p.m. signals.
CONSTITUTION: A non-liner circuit 19 is connected between a proportional integration operator 5 and a differential operator 6. The difference between the actual flow rate signals of a water supply flow meter 3 and a water supply demand is subjected to operation by an operator 4 so that the r.p.m. setting signals A, which are generated through the operator 5 and which have no-linear characteristics, are corrected to linear characteristics by the circuit 19. As a reslt, the signals A are converted into signals C1 so that they become coincident with the converted signals C0 of the actual r.p.m. Thus, the difference in contrability due to the r.p.m. detector of the high and low r.p.m. ranges is eliminated so that the hunting phenomena are prevented at the low r.p.m. range
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12577077A JPS5459501A (en) | 1977-10-21 | 1977-10-21 | Controller for water supply pump drive turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12577077A JPS5459501A (en) | 1977-10-21 | 1977-10-21 | Controller for water supply pump drive turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5459501A true JPS5459501A (en) | 1979-05-14 |
Family
ID=14918390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12577077A Pending JPS5459501A (en) | 1977-10-21 | 1977-10-21 | Controller for water supply pump drive turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5459501A (en) |
-
1977
- 1977-10-21 JP JP12577077A patent/JPS5459501A/en active Pending
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