CN204511763U - A kind of hydroelectric power system Turbine Governor System based on PLC - Google Patents
A kind of hydroelectric power system Turbine Governor System based on PLC Download PDFInfo
- Publication number
- CN204511763U CN204511763U CN201420834131.5U CN201420834131U CN204511763U CN 204511763 U CN204511763 U CN 204511763U CN 201420834131 U CN201420834131 U CN 201420834131U CN 204511763 U CN204511763 U CN 204511763U
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- plc
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- hydroelectric power
- power system
- system based
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- Expired - Fee Related
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- 238000000034 method Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Control Of Eletrric Generators (AREA)
Abstract
The utility model discloses a kind of hydroelectric power system Turbine Governor System based on PLC, comprise PLC, unit presses residual frequency signal processing circuit, electrical network transformer circuit and Hall transducer circuit.The utility model enters PLC by the frequency signal of unit residual voltage frequency source with after the network signal that electrical network mutual inductor occurs processes, by digital Frequency Measuring principle by software simulating machine frequency and net measurement frequently, enhance stability and the reliability of system.
Description
Technical field
The utility model relates to a kind of hydraulic turbine control system, specifically a kind of hydroelectric power system Turbine Governor System based on PLC.
Background technique
Water turbine programmable speed regulator puts into operation in hydroelectric power plant from the beginning of the nineties and relies on, and because programmable controller is towards industry spot, has the features such as reliability is high, easily-learned easily mastered, is more and more subject to the welcome of user.Speed regulator in the past mostly adopts hardware circuit to measure rotating speed and the net frequency of unit, but components and parts are many, poor anti jamming capability, affect reliability and the Security of whole system.
Model utility content
The purpose of this utility model is the hydroelectric power system Turbine Governor System based on PLC providing a kind of software and hardware one, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technological scheme:
A kind of hydroelectric power system Turbine Governor System based on PLC, comprise PLC, unit presses residual frequency signal processing circuit, electrical network transformer circuit and Hall transducer circuit, described PLC connects unit respectively and presses residual frequency signal processing circuit, electrical network transformer circuit, motor-drive circuit, overspeed alarming circuit and Hall transducer circuit, motor-drive circuit connects stepper motor, electric cylinder, pilot valve, guide vane servomotor, stator pouring mechanism successively, and electric cylinder also connects Hall transducer circuit.
As further program of the utility model: described PLC is S7-200 type PLC.
As the utility model further scheme: described PLC adopts the fuzzy control method of table look-at mode.
Compared with prior art, the beneficial effects of the utility model are: the utility model enters PLC by the frequency signal of unit residual voltage frequency source with after the network signal that electrical network mutual inductor occurs processes, by digital Frequency Measuring principle by software simulating machine frequency and net measurement frequently, enhance stability and the reliability of system.
Accompanying drawing explanation
Fig. 1 is a kind of structured flowchart of the hydroelectric power system Turbine Governor System based on PLC.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of hydroelectric power system Turbine Governor System based on PLC, comprise PLC, unit presses residual frequency signal processing circuit, electrical network transformer circuit and Hall transducer circuit, PLC connects unit respectively and presses residual frequency signal processing circuit, electrical network transformer circuit, motor-drive circuit, overspeed alarming circuit and Hall transducer circuit, motor-drive circuit connects stepper motor, electric cylinder, pilot valve, guide vane servomotor, stator pouring mechanism successively, and electric cylinder also connects Hall transducer circuit.
PLC is S7-200 type PLC.
PLC adopts the fuzzy control method of table look-at mode.
The utility model enters PLC by the frequency signal of unit residual voltage frequency source with after the network signal that electrical network mutual inductor occurs processes, by digital Frequency Measuring principle by software simulating machine frequency and net measurement frequently.Gate positing measurement be to be published in instalments with electric cylinder by Hall transducer circuit together with, Hall transducer, with electric cylinder change in displacement, reflects pilot servomotor stroke, also namely reflects guide vane servomotor position.
The rotating speed control of water turbine leads leaf divergence by control and open and close speed realizes, PLC by the unit machine of actual measurement frequently signal compared with frequency Setting signal after the difference on the frequency that obtains, after fuzzy PID regulation computing, its result value is converted into displacement amount by stepper motor driving circuit, stepper motor and electric cylinder, thus controls to lead leaf divergence.
Claims (3)
1. the hydroelectric power system Turbine Governor System based on PLC, comprise PLC, unit presses residual frequency signal processing circuit, electrical network transformer circuit and Hall transducer circuit, it is characterized in that, described PLC connects unit respectively and presses residual frequency signal processing circuit, electrical network transformer circuit, motor-drive circuit, overspeed alarming circuit and Hall transducer circuit, motor-drive circuit connects stepper motor, electric cylinder, pilot valve, guide vane servomotor, stator pouring mechanism successively, and electric cylinder also connects Hall transducer circuit.
2. the hydroelectric power system Turbine Governor System based on PLC according to claim 1, is characterized in that, described PLC is S7-200 type PLC.
3. the hydroelectric power system Turbine Governor System based on PLC according to claim 1, is characterized in that, described PLC adopts the fuzzy control method of table look-at mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834131.5U CN204511763U (en) | 2014-12-25 | 2014-12-25 | A kind of hydroelectric power system Turbine Governor System based on PLC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834131.5U CN204511763U (en) | 2014-12-25 | 2014-12-25 | A kind of hydroelectric power system Turbine Governor System based on PLC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511763U true CN204511763U (en) | 2015-07-29 |
Family
ID=53709748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834131.5U Expired - Fee Related CN204511763U (en) | 2014-12-25 | 2014-12-25 | A kind of hydroelectric power system Turbine Governor System based on PLC |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843154A (en) * | 2016-03-18 | 2016-08-10 | 武汉聚鑫源机电工程设备有限公司 | Master controller of MT-1C type integration stepped closing valve control system |
| CN105863949A (en) * | 2016-06-16 | 2016-08-17 | 国家电网公司 | Speed governor control method for power generation working condition of water-turbine generator set |
| CN106837678A (en) * | 2017-03-15 | 2017-06-13 | 大连大学 | Based on the turbine-generator units PID governor parameters optimization for improving TLBO algorithms |
-
2014
- 2014-12-25 CN CN201420834131.5U patent/CN204511763U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105843154A (en) * | 2016-03-18 | 2016-08-10 | 武汉聚鑫源机电工程设备有限公司 | Master controller of MT-1C type integration stepped closing valve control system |
| CN105863949A (en) * | 2016-06-16 | 2016-08-17 | 国家电网公司 | Speed governor control method for power generation working condition of water-turbine generator set |
| CN105863949B (en) * | 2016-06-16 | 2018-01-30 | 国家电网公司 | Turbine-generator units generating operation mode speed regulator control method |
| CN106837678A (en) * | 2017-03-15 | 2017-06-13 | 大连大学 | Based on the turbine-generator units PID governor parameters optimization for improving TLBO algorithms |
| CN106837678B (en) * | 2017-03-15 | 2018-09-25 | 大连大学 | Based on the turbine-generator units PID governor parameters optimization for improving TLBO algorithms |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |