CN106771698A - A kind of test apparatus for hydrogovernor - Google Patents
A kind of test apparatus for hydrogovernor Download PDFInfo
- Publication number
- CN106771698A CN106771698A CN201610522971.1A CN201610522971A CN106771698A CN 106771698 A CN106771698 A CN 106771698A CN 201610522971 A CN201610522971 A CN 201610522971A CN 106771698 A CN106771698 A CN 106771698A
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- China
- Prior art keywords
- module
- hydrogovernor
- test apparatus
- communication interface
- slave computer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/003—Environmental or reliability tests
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention relates to a kind of test apparatus for hydrogovernor, it is made up of master system and slave computer tentative module, master system includes host computer processing module and communication interface, one end connection slave computer tentative module of communication interface, the communication port that the other end of communication interface is connected to computer carries out test operation using host computer processing module.The present invention is applied to the debugging of hydraulic generator group or overhauls, and wide adaptability can complete the experiment of most of hydrogovernor, the device hardware reliability of this test apparatus, high precision, strong antijamming capability, it is ensured that unit can safely and steadily run.
Description
Technical field
The present invention is applied to the debugging of hydraulic generator group or overhauls, especially a kind of test instrument for hydrogovernor
Device.
Background technology
Hydrogovernor is dispatching from the factory, commencement of commercial operation sum overhaul when, it is necessary to carry out some experimental tests its dynamics
Can, it is ensured that unit safety stable operation.According to the requirement of standard GB/T9652.2-2007, dispatching from the factory needs to carry out static characteristic examination
Test, servomotor completely open and close time test is tested, scene needs to carry out load dump test, no-load disturbing test etc..
The static characteristic test that for example dispatches from the factory, it is necessary to manually using the stroke of vernier caliper measurement servomotor, further according to survey
Value fitting speed regulator be opened to and close to curve, to obtain speed dead bend and the nonlinearity erron of speed regulator, this mode is spent
It is time-consuming more long, and manual measurement error is larger, obtains calculating conclusion and is also required to for a long time.And scene to be carried out gets rid of negative
Lotus is tested and no-load disturbing test, and the requirement according to standard needs to measure the servomotor dead time, and method is by recording wave device
One section of waveform is recorded, temporal resolution is not more than 0.02s, and traditional field test equipment can reach the few of this standard, and
And bulky, complex operation, waveform artificial judgment and calculate result of the test, error that Field Force will survey according to equipment
It is very big.
By retrieval, the disclosed patented technology of following near field is found：
A kind of impulse turbine intelligence control system (CN104895736A), including speed regulator PLC, superposing type hydraulic pressure are watched
Clothes are put, and superposing type hydraulic servo device includes each nozzle needle control unit and each jet deflector of connection corresponding with each nozzle needle
Each jet deflector control unit of correspondence connection, each nozzle needle control unit and each jet deflector control unit connect with speed regulator PLC respectively
Connect, the output end of speed regulator PLC by power amplifier and nozzle needle switch valve drive side magnetic valve and pass side magnetic valve is connected, spray
Pin switch valve by nozzle needle electro-control converter to nozzle needle servomotor begin to speak and close chamber be controlled.A kind of system of present invention design
Simple structure, the reliability control system suitable for many jet deflector impact type units of many nozzle needles high, are set using cellular structure
Meter, by each nozzle needle and the hydraulic control system design of the jet deflector into digital hydraulic unit of identical independent control
Digital water turbine governing system, to realize the construction in intelligent power station.
By contrast, the technical purpose and practical solutions of the technical scheme of above patented technology and present patent application
There is larger difference.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art part, there is provided a kind of experiment for hydrogovernor
Instrument, the dynamic property for testing hydrogovernor, it is ensured that unit can safely and steadily run.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of test apparatus for hydrogovernor, it is characterised in that：By master system and slave computer experiment mould
Block is constituted, and master system includes host computer processing module and communication interface, one end connection slave computer experiment of communication interface
Module, the communication port that the other end of communication interface is connected to computer carries out test operation using host computer processing module.
And, host computer processing module includes realtime curve module, output report module, experiment module selecting module
And user's defining operation setup module.
And, slave computer tentative module includes communication interface, power module, frequency measuring block, rate-adaptive pacemaker module, AD
Acquisition module, DA output modules, DI acquisition modules and DO output modules, one end connection master system of communication interface, lead to
The other end difference rate of connections measurement module of communication interface, rate-adaptive pacemaker module, AD acquisition modules, DA output modules, DI collections
Module and DO output modules, the frequency measuring block, rate-adaptive pacemaker module, AD acquisition modules, DA output modules, DI collections
Module and DO output modules connect power module respectively, and the power module provides stabilized power source output.
And, slave computer tentative module is additionally provided with a human-machine interface module, and conveniently accessible manual controller is under
Position machine tentative module is respectively controlled.
And, it is key control unit, the various modular functionalities of ancillary peripheral that the slave computer tentative module uses DSP
Circuit is constituted.
And, the hardware components of the slave computer tentative module use micro metal modular cartridge, and size is 200mm*
160mm*70mm。
And, power module uses AC and DC universal inputs, and is aided with line filter, decoupling and pressure-limit current-limit of correlation etc.
Protection circuit.
And, AD acquisition modules use the AD Acquisition Circuit with Phototube Coupling.
And, DA output circuits produce high-frequency impulse using the speedy carding process module that DSP is carried, then carry out PWM, and
Square wave is converted into the analog signal of 4-20mA by hardware circuit.
And, the speedy carding process module that rate-adaptive pacemaker module is equally carried using DSP produces the waveform of corresponding frequencies.
Advantages and positive effects of the present invention are：
1st, this test apparatus wide adaptability, the equipment that this test apparatus of the experiment of most of hydrogovernor can be completed
Hardware reliability, high precision, strong antijamming capability, it is ensured that unit can safely and steadily run.
2nd, this test apparatus is different from most of field test equipment, and our equipment is soft comprising powerful host computer
The data of collection can be analyzed and calculated, it is also possible to which the waveform to drawing out is amplified/reduces/translate/adds by part
The editor such as mark, generates satisfactory form.
3rd, this test apparatus has carried out the exploitation of the exclusive communication protocol of equipment, and the traditional communication protocol of industrial control field is general
Communicated using peer to peer technology, communicated by periodically inquiring about-responding realization, this form of asynchronous communication has efficiency of transmission
The shortcomings of low, poor reliability.This equipment devises a kind of communication protocol for gathering plesiochronous and asynchronous communication.Agreement is by fixing
Master station protocol and variable slave station protocol two parts composition.
4th, the present invention is specific to the testing equipment of hydrogovernor, is different from traditional product, our equipment bag
Containing powerful upper computer software, the data of collection can be analyzed and be calculated, it is also possible to which the waveform to drawing out enters
Edlin, while generating satisfactory form, above-mentioned static characteristic test, this equipment can be automatically finished examination
Test, automatic measurement, automatic Fitting curve and draw conclusion (of pressure testing), and field test needs the servomotor dead time of measurement, this
Equipment can go out result of the test with automatic measurement, and certainty of measurement is smaller than 0.5 μ s, it is not necessary to artificial excessive intervention, you can complete
Experiment, improves the accuracy that test efficiency also ensure that result of the test.
Brief description of the drawings
Fig. 1 is overall system diagram of the invention；
Fig. 2 is power module circuitry schematic diagram；
Fig. 3 is AD acquisition module circuit theory diagrams；
Fig. 4 is DA output module circuit theory diagrams；
Fig. 5 is rate-adaptive pacemaker modular circuit schematic diagram；
Fig. 6 is a kind of real-time display interface of test waveform of host computer；
Fig. 7 is the real-time display interface of another experiment of host computer；
Fig. 8 is the curve map after editor；
Fig. 9 is the form schematic diagram of output report module generation.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings and by specific embodiment, and following examples are descriptive
, it is not limited, it is impossible to which protection scope of the present invention is limited with this.
A kind of test apparatus for hydrogovernor, this equipment is hydrogovernor development, can complete big portion
Divide the experiment of hydrogovernor, referring to shown in accompanying drawing 1, complete equipment is made up of master system and slave computer tentative module,
Master system includes realtime curve module, output report module, user's defining operation setup module, experiment
Module selecting module and communication interface, one end connection slave computer tentative module of communication interface, the other end of communication interface connect
Be connected to the communication port of computer carries out test operation with computer end using host computer processing module；The other end connection of communication interface
The interface of experiment module selecting module, the tentative module option program connects realtime curve module and output report respectively
Module, shows current experiment data, and can generate the form of corresponding word or excel forms in real time；Tentative module is selected
The program of selecting is also associated with user's defining operation setup module, and the use habit setting operation pattern according to user is easy to user to grasp
Make.The software program of master system is developed using Visual Basic development environments.
Upper computer software program includes real time real-time data acquisition modules, exports into word document or excel texts
Part, test function module and User Defined operation setting.It is specifically described as follows：
1st, the efficient communication protocol of this equipment development is based upon, serial communication efficiency can be improved, realize the reality of data
When transmit and process.
2nd, in view of the convenience and versatility of digital independent, it would be desirable to which the data of preservation are stored as in the form of picture
Word document.Referring to accompanying drawing 6 to accompanying drawing 9, display interface is intuitively succinct.
3rd, the smooth and convenience used in view of user, each input/output port can customize, and possess correlation
Software function module.
Slave computer tentative module includes communication interface, power module, frequency measuring block, rate-adaptive pacemaker module, AD collections
Module, DA output modules, DI acquisition modules and DO output modules,
One end connection master system of communication interface, the other end difference rate of connections measurement module of communication interface, frequency
Rate output module, AD acquisition modules, DA output modules, DI acquisition modules and DO output modules, the frequency measuring block, frequency
Rate output module, AD acquisition modules, DA output modules, DI acquisition modules and DO output modules connect power module respectively, should
Power module provides stabilized power source output；
Slave computer tentative module is additionally provided with a human-machine interface module, and conveniently accessible manual controller tries to slave computer
Test module to be controlled, be user-friendly to.
It is key control unit, the various modular functionality circuits of ancillary peripheral that the slave computer tentative module uses DSP
Constitute；The hardware components of slave computer tentative module use micro metal modular cartridge, and size is only 200mm*160mm*70mm.
Each several part module is specifically described as follows：
1st, referring to shown in accompanying drawing 2, power module uses AC and DC universal inputs, and is aided with the line filter of correlation, decoupling
With the protection circuit such as pressure-limit current-limit, it is ensured that output stabilization.
2nd, referring to shown in accompanying drawing 3, AD acquisition modules use the AD Acquisition Circuit with Phototube Coupling.This anti-interference effect of mode
Substantially, but precision and the linearity are poor for fruit, We conducted substantial amounts of calculating and experiment, existing design accuracy 0.1%, linearly
Degree error 0.23%, better than most of like products.
3rd, referring to shown in accompanying drawing 4, DA output circuits produce high-frequency impulse using the speedy carding process module that DSP is carried, then enter
Row PWM, and square wave is converted into the analog signal of 4-20mA by hardware circuit.
4th, referring to shown in accompanying drawing 5, the speedy carding process module that rate-adaptive pacemaker module is equally carried using DSP, according to software
Setting produces the waveform of corresponding frequencies.
5th, the high speed input capture function that frequency measuring block is carried using DSP, it is ensured that real-time and precision；In addition, by
In the use environment in view of hardware, outside hardware filtering is carried out using second-order low-pass filter, software filtering is also increased
Device.
6th, in view of versatility, communication interface uses standard RS232 interfaces, while in order to protect intellectual property and capture city
, develop the exclusive communication protocol of equipment.
Although disclosing embodiments of the invention and accompanying drawing for the purpose of illustration, those skilled in the art can manage
Solution：Do not depart from the present invention and spirit and scope of the appended claims in, various replacements, change and modifications all be it is possible,
Therefore, the scope of the present invention is not limited to embodiment and accompanying drawing disclosure of that.
Claims (10)
1. a kind of test apparatus for hydrogovernor, it is characterised in that：By master system and slave computer tentative module
Composition, master system includes host computer processing module and communication interface, one end connection slave computer experiment mould of communication interface
Block, the communication port that the other end of communication interface is connected to computer carries out test operation using host computer processing module.
2. the test apparatus for hydrogovernor according to claim 1, it is characterised in that：Host computer processing module
Including realtime curve module, output report module, experiment module selecting module and user's defining operation setup module.
3. the test apparatus for hydrogovernor according to claim 1, it is characterised in that：Slave computer tentative module
Including communication interface, power module, frequency measuring block, rate-adaptive pacemaker module, AD acquisition modules, DA output modules, DI collections
Module and DO output modules, one end connection master system of communication interface, the other end difference rate of connections of communication interface
Measurement module, rate-adaptive pacemaker module, AD acquisition modules, DA output modules, DI acquisition modules and DO output modules, the frequency
Measurement module, rate-adaptive pacemaker module, AD acquisition modules, DA output modules, DI acquisition modules and DO output modules are connected respectively
Power module, the power module provides stabilized power source output.
4. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：Slave computer tentative module
A human-machine interface module is additionally provided with, conveniently accessible manual controller is respectively controlled to slave computer tentative module.
5. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：The slave computer experiment
It is key control unit that module uses DSP, and the various modular functionality circuits of ancillary peripheral are constituted.
6. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：The slave computer experiment
The hardware components of module use micro metal modular cartridge, and size is 200mm*160mm*70mm.
7. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：Power module uses AC
And DC universal inputs, and it is aided with the protection circuits such as line filter, decoupling and the pressure-limit current-limit of correlation.
8. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：AD acquisition modules are used
AD Acquisition Circuit with Phototube Coupling.
9. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：DA output circuits are used
The speedy carding process module that DSP is carried produces high-frequency impulse, then carries out PWM, and square wave is converted into 4- by hardware circuit
The analog signal of 20mA.
10. the test apparatus for hydrogovernor according to claim 3, it is characterised in that：Rate-adaptive pacemaker module
The same speedy carding process module carried using DSP, produces the waveform of corresponding frequencies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522971.1A CN106771698A (en) | 2016-07-05 | 2016-07-05 | A kind of test apparatus for hydrogovernor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522971.1A CN106771698A (en) | 2016-07-05 | 2016-07-05 | A kind of test apparatus for hydrogovernor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106771698A true CN106771698A (en) | 2017-05-31 |
Family
ID=58972337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610522971.1A Pending CN106771698A (en) | 2016-07-05 | 2016-07-05 | A kind of test apparatus for hydrogovernor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709759A (en) * | 2018-05-30 | 2018-10-26 | 四川中鼎科技有限公司 | Long-range power station field test system, method and shared platform Internet-based |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446299Y (en) * | 2000-09-28 | 2001-09-05 | 南海鹏 | Frequency detector of hydroturbine speed governor |
| CN2755303Y (en) * | 2004-11-22 | 2006-02-01 | 西安理工大学 | Dual speed adjuster of step-by-step hydroturbine |
| CN2759054Y (en) * | 2004-09-30 | 2006-02-15 | 清华大学 | Controller for non-linear speed regulator of 32 position water turbine |
| CN201247150Y (en) * | 2008-08-12 | 2009-05-27 | 西安理工大学 | Portable test device for governor of hydraulic turbine |
| CN204270144U (en) * | 2014-12-22 | 2015-04-15 | 国家电网公司 | A kind of hydrogovernor simulation testing device based on dsp system |
-
2016
- 2016-07-05 CN CN201610522971.1A patent/CN106771698A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2446299Y (en) * | 2000-09-28 | 2001-09-05 | 南海鹏 | Frequency detector of hydroturbine speed governor |
| CN2759054Y (en) * | 2004-09-30 | 2006-02-15 | 清华大学 | Controller for non-linear speed regulator of 32 position water turbine |
| CN2755303Y (en) * | 2004-11-22 | 2006-02-01 | 西安理工大学 | Dual speed adjuster of step-by-step hydroturbine |
| CN201247150Y (en) * | 2008-08-12 | 2009-05-27 | 西安理工大学 | Portable test device for governor of hydraulic turbine |
| CN204270144U (en) * | 2014-12-22 | 2015-04-15 | 国家电网公司 | A kind of hydrogovernor simulation testing device based on dsp system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709759A (en) * | 2018-05-30 | 2018-10-26 | 四川中鼎科技有限公司 | Long-range power station field test system, method and shared platform Internet-based |
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Application publication date: 20170531 |