CN205249105U - A generator protection system for hydropower has a feedback control - Google Patents
A generator protection system for hydropower has a feedback control Download PDFInfo
- Publication number
- CN205249105U CN205249105U CN201521072487.0U CN201521072487U CN205249105U CN 205249105 U CN205249105 U CN 205249105U CN 201521072487 U CN201521072487 U CN 201521072487U CN 205249105 U CN205249105 U CN 205249105U
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- Prior art keywords
- operational amplifier
- feedback control
- resistance
- electric capacity
- generator
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Abstract
The utility model relates to a generator protection system for hydropower has a feedback control, including wireless connection's hydropower equipment and intelligent communication terminal, this a generator protection system for hydropower has a feedback control passes through hydropower equipment and intelligent communication terminal wireless connection, has realized that the staff is to the long -range accent of hydropower equipment, after while speedtransmitter's the detection data feedback, control through the switch module to realize the feedback control principle, guaranteed to carry out the accurate control to the rotational speed of hydropower machine, improved the reliability of protection of hydropower machine, moreover, can switch the detection to the interval rotational speed of friction speed through select switch among the processing circuit, thereby improve the accuracy nature to the tachometry, through third electric capacity and the LC filter circuit that an inductor group becomes, there is filter effects to interfering signal to system signal processing's reliability and accuracy nature have been improved.
Description
Technical field
The utility model relates to a kind of generator protection system with FEEDBACK CONTROL for water generating.
Background technology
In China, waterpower resourses are very abundant, particularly now more and more higher for energy demand, so IState starts waterpower resourses to start to carry out Devoting Major Efforts To Developing.
In water generating, be all the blade that adopts water impact water conservancy generator, thereby drive generatingMachine rotation is generated electricity. But because the control for current is inadequate and inaccurate to the tachometric survey of generator,Tend to cause water conservancy generator rotating speed too fast, affect power generating quality, even cause the damage of water conservancy generator.
Utility model content
The technical problems to be solved in the utility model is: in order to overcome prior art, water conservancy generator is protected notThe deficiency putting in place, provide a kind of can realize remote control and regulation and have FEEDBACK CONTROL measurement function for water conservancyThe generator protection system with FEEDBACK CONTROL of generating.
The utility model solves the technical scheme that its technical problem adopts: a kind of tool for water generatingThere is the generator protection system of FEEDBACK CONTROL, comprise water generating equipment and the intelligent communication terminal of wireless connections,Described water generating equipment comprises sparge pipe, water conservancy generator and CCU, the going out of described sparge pipeThe mouth of a river is provided with switch module, and described water conservancy generator comprises blade, rotating shaft and velocity sensor, described inVelocity sensor is arranged on rotating shaft, and the delivery port extended line of described sparge pipe is vertical with the oar face of blade;
Described switch module, velocity sensor and water conservancy generator are all electrically connected with CCU, described inIn CCU, be provided with signal processing module, described velocity sensor is electrically connected with signal processing module;
Described signal processing module comprises signal processing circuit, described signal processing circuit comprise the first resistance,The second resistance, the 3rd resistance, the 4th resistance, the first electric capacity, the second electric capacity, the 3rd electric capacity, the first computingAmplifier, the second operational amplifier, the 3rd operational amplifier, the first inductance and selector switch, described selectionSwitch is provided with an output and two selecting sides, and the first selecting side of described selector switch and the first resistance connectConnect, the second selecting side of described selector switch is connected with the second resistance, described the first operational amplifier anti-phaseInput is connected with the output of selector switch, and the in-phase input end of described the first operational amplifier is by the 3rdResistance is connected with the in-phase input end of the second operational amplifier, the in-phase input end of described the second operational amplifierBe connected described the 3rd operational amplifier same with the in-phase input end of the 3rd operational amplifier by the 4th resistanceThe external 2.5V DC voltage power supply of phase input, the output of described the first operational amplifier is by the first electric capacityBe connected with the inverting input of the second operational amplifier, the output of described the second operational amplifier is by secondElectric capacity is connected with the inverting input of the 3rd operational amplifier, and the output of described the first operational amplifier passes throughThe parallel circuit ground connection of the 3rd electric capacity and the first inductance composition.
As preferably, magnetic valve has the advantages that control accuracy is high, has improved the reliability of system, described in openPass module is magnetic valve.
As preferably, the LC filter circuit of the 3rd electric capacity and the first inductance composition, has to filter to interfering signal and doesWith, thereby improving the reliability of system signal processing, the capacitance of described the 3rd electric capacity is 100pF, described inThe inductance value of the first inductance is 1uH.
As preferably, smart mobile phone is as the most general communication tool, thereby improved the practicality of system,Described intelligent communication terminal is smart mobile phone.
As preferably, the type of described the first operational amplifier, the second operational amplifier and the 3rd operational amplifierNumber be AD603.
The beneficial effects of the utility model are that this is used for the generator protection with FEEDBACK CONTROL of water generatingSystem, by water generating equipment and intelligent communication terminal wireless connections, has realized staff to water generatingApparatus remote is adjusted; After the detection data feedback of velocity sensor, control by switch module simultaneously,Thereby realize feedback control principle, ensured the rotating speed of water conservancy generator accurately to control, improved waterThe reliability of protection of profit generator, moreover, can be to not by selector switch in signal processing circuitRotating speed with speed interval carries out change detection, thereby has improved the accuracy to tachometric survey; By the 3rdThe LC filter circuit of electric capacity and the first inductance composition, has filtration to interfering signal, thereby has improved systemThe reliability of signal processing and accuracy.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the knot of the generator protection system with FEEDBACK CONTROL for water generating of the present utility modelStructure schematic diagram;
Fig. 2 is the letter of the generator protection system with FEEDBACK CONTROL for water generating of the present utility modelThe circuit theory diagrams of number treatment circuit;
In figure: 1. sparge pipe, 2. switch module, 3. blade, 4. water conservancy generator, 5. rotating shaft, 6. speed passesSensor, 7. intelligent communication terminal, R1. the first resistance, R2. the second resistance, R3. the 3rd resistance, R4. the 4th electricityResistance, C1. the first electric capacity, C2. the second electric capacity, C3. the 3rd electric capacity, U1. the first operational amplifier, U2. secondOperational amplifier, U3. the 3rd operational amplifier, L1. the first inductance, K1. selector switch.
Detailed description of the invention
By reference to the accompanying drawings the utility model is described in further detail now. These accompanying drawings are showing of simplificationIntention, only illustrates basic structure of the present utility model in a schematic way, and therefore it only shows and the utility modelRelevant formation.
As depicted in figs. 1 and 2, a kind of generator protection system with FEEDBACK CONTROL for water generating,The water generating equipment and the intelligent communication terminal 7 that comprise wireless connections, described water generating equipment comprises sparge pipe1, water conservancy generator 4 and CCU, the delivery port of described sparge pipe 1 is provided with switch module 2,Described water conservancy generator 4 comprises blade 3, rotating shaft 5 and velocity sensor 6, and described velocity sensor 6 is establishedPut on rotating shaft 5, the delivery port extended line of described sparge pipe 1 is vertical with the oar face of blade 3;
Described switch module 2, velocity sensor 6 and water conservancy generator 4 are all electrically connected with CCU,In described CCU, be provided with signal processing module, described velocity sensor 6 and signal processing module electricityConnect;
Described signal processing module comprises signal processing circuit, described signal processing circuit comprise the first resistance R 1,The second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first capacitor C 1, the second capacitor C 2, the 3rd electricityHold C3, the first operational amplifier U1, the second operational amplifier U2, the 3rd operational amplifier U3, the first electricitySense L1 and selector switch K1, described selector switch K1 is provided with an output and two selecting sides, described choosingFirst selecting side of selecting K switch 1 is connected with the first resistance R 1, the second selecting side of described selector switch K1 withThe second resistance R 2 connects, the output of the inverting input of described the first operational amplifier U1 and selector switch K1End connects, and the in-phase input end of described the first operational amplifier U1 is put by the 3rd resistance R 3 and the second computingThe in-phase input end of large device U2 connects, and the in-phase input end of described the second operational amplifier U2 is by the 4th electricityResistance R4 is connected with the in-phase input end of the 3rd operational amplifier U3, the homophase of described the 3rd operational amplifier U3The external 2.5V DC voltage power supply of input, the output of described the first operational amplifier U1 is by the first electricityHold C1 and be connected with the inverting input of the second operational amplifier U2, the output of described the second operational amplifier U2End is connected with the inverting input of the 3rd operational amplifier U3 by the second capacitor C 2, and described the first computing is putThe parallel circuit ground connection that the output of large device U1 consists of the 3rd capacitor C 3 and the first inductance L 1.
As preferably, magnetic valve has the advantages that control accuracy is high, has improved the reliability of system, described in openClosing module 2 is magnetic valve.
As preferably, the LC filter circuit that the 3rd capacitor C 3 and the first inductance L 1 form, has interfering signalFiltration, thus the reliability of system signal processing improved, and the capacitance of described the 3rd capacitor C 3 is100pF, the inductance value of described the first inductance L 1 is 1uH.
As preferably, smart mobile phone is as the most general communication tool, thereby improved the practicality of system,Described intelligent communication terminal 7 is smart mobile phone.
As preferably, described the first operational amplifier U1, the second operational amplifier U2 and the 3rd operational amplifierThe model of U3 is AD603.
This is used for the generator protection system with FEEDBACK CONTROL of water generating: water generating equipment and intelligence7 wireless connections of energy communicating terminal, have realized staff to the regulation and control of water generating apparatus remote, not only improveThe operability of system, also improved production safety coefficient; When sparge pipe 1 starts water conservancy generator 4Blade 3 while spraying water, the stressed rotation of blade 3, drives rotating shaft 5 to do work, generator starts generating. ItsThe delivery port extended line of middle sparge pipe 1 is vertical with the oar face of blade 3, makes the generating effect of water generating equipmentRate maximizes, and Negotiation speed sensor 6 is monitored the speed of water generating equipment simultaneously, when speed reachesDuring to setting value, switch module 2 will be controlled the size of current, thereby controls the rotating speed of water conservancy generator 4,Prevent that driving phenomenon from appearring in water conservancy generator 4, protects water conservancy generator 4. Wherein velocity sensor 6Detection data feedback after, control by switch module 2, thereby realize feedback control principle, protectDemonstrate,prove the rotating speed of water conservancy generator 4 has accurately been controlled, improved protection reliable of water conservancy generator 4Property.
Being carried out, rotating speed in measuring process, need to accurately detect rotating speed by signal processing module,First form by the first operational amplifier U1, the second operational amplifier U2 and the 3rd operational amplifier U3Signal detection testing circuit detects signal, simultaneously can be to friction speed interval by selector switch K1Rotating speed carry out change detection, thereby improved the accuracy to tachometric survey; By the 3rd capacitor C 3 andThe LC filter circuit that one inductance L 1 forms, has filtration to interfering signal, thereby has improved system signalThe reliability of processing.
Compared with prior art, this generator protection system with FEEDBACK CONTROL that is used for water generating passes throughWater generating equipment and intelligent communication terminal 7 wireless connections, realized staff far away to water generating equipmentJourney is adjusted; After the detection data feedback of velocity sensor 6, control by switch module 2 simultaneously, fromAnd realize feedback control principle, and ensure the rotating speed of water conservancy generator 4 accurately to control, improve waterThe reliability of the protection of profit generator 4, moreover, can by selector switch K1 in signal processing circuitThe rotating speed in friction speed interval is carried out to change detection, thereby improved the accuracy to tachometric survey; Pass throughThe LC filter circuit that the 3rd capacitor C 3 and the first inductance L 1 form, has filtration to interfering signal, therebyReliability and the accuracy of system signal processing are improved.
Taking above-mentioned foundation desirable embodiment of the present utility model as enlightenment, by above-mentioned description, relevantStaff can, not departing from the scope of this utility model technological thought, carry out various change completelyAnd amendment. The technical scope of this utility model is not limited to the content on description, must rootDetermine its technical scope according to claim scope.
Claims (5)
1. for a generator protection system with FEEDBACK CONTROL for water generating, it is characterized in that bagWater generating equipment and the intelligent communication terminal (7) of drawing together wireless connections, described water generating equipment comprises water sprayPipe (1), water conservancy generator (4) and CCU, the delivery port of described sparge pipe (1) is provided withSwitch module (2), described water conservancy generator (4) comprises blade (3), rotating shaft (5) and velocity pick-upDevice (6), it is upper that described velocity sensor (6) is arranged on rotating shaft (5), the water outlet of described sparge pipe (1)Mouth extended line is vertical with the oar face of blade (3);
Described switch module (2), velocity sensor (6) and water conservancy generator (4) all fill with center-controlPut electrical connection, in described CCU, be provided with signal processing module, described velocity sensor (6) and letterThe electrical connection of number processing module;
Described signal processing module comprises signal processing circuit, and described signal processing circuit comprises the first resistance(R1), the second resistance (R2), the 3rd resistance (R3), the 4th resistance (R4), the first electric capacity (C1),Two electric capacity (C2), the 3rd electric capacity (C3), the first operational amplifier (U1), the second operational amplifier (U2),The 3rd operational amplifier (U3), the first inductance (L1) and selector switch (K1), described selector switch (K1)Be provided with an output and two selecting sides, the first selecting side of described selector switch (K1) and the first resistance(R1) connect, the second selecting side of described selector switch (K1) is connected with the second resistance (R2), described inThe inverting input of the first operational amplifier (U1) is connected with the output of selector switch (K1), and describedThe in-phase input end of one operational amplifier (U1) is by the 3rd resistance (R3) and the second operational amplifier (U2)In-phase input end connect, the in-phase input end of described the second operational amplifier (U2) is by the 4th resistance (R4)Be connected described the 3rd operational amplifier (U3) same with the in-phase input end of the 3rd operational amplifier (U3)The external 2.5V DC voltage power supply of phase input, the output of described the first operational amplifier (U1) is by theOne electric capacity (C1) is connected with the inverting input of the second operational amplifier (U2), described the second operation amplifierThe output of device (U2) is the inverting input with the 3rd operational amplifier (U3) by the second electric capacity (C2)Connect, the output of described the first operational amplifier (U1) is by the 3rd electric capacity (C3) and the first inductance (L1)The parallel circuit ground connection of composition.
2. the generator protection system with FEEDBACK CONTROL for water generating as claimed in claim 1,It is characterized in that, described switch module (2) is magnetic valve.
3. the generator protection system with FEEDBACK CONTROL for water generating as claimed in claim 1,It is characterized in that, the capacitance of described the 3rd electric capacity (C3) is 100pF, the electricity of described the first inductance (L1)Sensibility reciprocal is 1uH.
4. the generator protection system with FEEDBACK CONTROL for water generating as claimed in claim 1,It is characterized in that, described intelligent communication terminal (7) is smart mobile phone.
5. the generator protection system with FEEDBACK CONTROL for water generating as claimed in claim 1,It is characterized in that, described the first operational amplifier (U1), the second operational amplifier (U2) and the 3rd computing are putThe model of large device (U3) is AD603.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072487.0U CN205249105U (en) | 2015-12-18 | 2015-12-18 | A generator protection system for hydropower has a feedback control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521072487.0U CN205249105U (en) | 2015-12-18 | 2015-12-18 | A generator protection system for hydropower has a feedback control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205249105U true CN205249105U (en) | 2016-05-18 |
Family
ID=55948174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521072487.0U Expired - Fee Related CN205249105U (en) | 2015-12-18 | 2015-12-18 | A generator protection system for hydropower has a feedback control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205249105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325128A (en) * | 2016-08-30 | 2017-01-11 | 中兴长天信息技术（南昌）有限公司 | Water conservancy information acquisition and control method and system based on LORA |
| CN107941203A (en) * | 2017-11-29 | 2018-04-20 | 张建洲 | A kind of intellectual faculties and method |
-
2015
- 2015-12-18 CN CN201521072487.0U patent/CN205249105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106325128A (en) * | 2016-08-30 | 2017-01-11 | 中兴长天信息技术（南昌）有限公司 | Water conservancy information acquisition and control method and system based on LORA |
| CN107941203A (en) * | 2017-11-29 | 2018-04-20 | 张建洲 | A kind of intellectual faculties and method |
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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: 20160518 Termination date: 20161218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |