CN109342986A - Standard discharge capacity signal generation apparatus for oscillation wave partial discharge test - Google Patents
Standard discharge capacity signal generation apparatus for oscillation wave partial discharge test Download PDFInfo
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- CN109342986A CN109342986A CN201811538904.4A CN201811538904A CN109342986A CN 109342986 A CN109342986 A CN 109342986A CN 201811538904 A CN201811538904 A CN 201811538904A CN 109342986 A CN109342986 A CN 109342986A
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 title claims abstract description 28
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- 230000008054 signal transmission Effects 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- WJZHMLNIAZSFDO-UHFFFAOYSA-N manganese zinc Chemical compound [Mn].[Zn] WJZHMLNIAZSFDO-UHFFFAOYSA-N 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000004088 simulation Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract 1
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- 238000000034 method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
- G01R35/007—Standards or reference devices, e.g. voltage or resistance standards, "golden references"
Abstract
The invention discloses a kind of standard discharge capacity signal generation apparatus for oscillation wave partial discharge test, comprising: controller, power management module, battery module, key module, D/A signal conversion module, boost module, analog switch module, standard capacitance module and signal output interface；Power management module is connected with controller and battery module respectively, and battery module is to each module for power supply；D/A signal conversion module is connected with boost module, and controller, D/A signal conversion module and boost module are connected with analog switch module respectively, and analog switch module is connected with standard capacitance module, and standard capacitance module is connected with signal output interface.According to the technical solution of the present invention, realize the output of Standard clectrical quantity pulse signal cycle, accuracy of measurement of discharging is high, and output area is wide, accurately can carry out the performance and precision that verify and for verifying oscillation wave partial discharge test macro itself to cable oscillation wave fault detection system.
Description
Technical field
The present invention relates to technical field of signal generation more particularly to a kind of standard for oscillation wave partial discharge test to put
Electric quantity signal generating device.
Background technique
Have several cable oscillation wave detection systems currently on the market, and has part for oscillation wave accident defect detection machine
Manage the research of aspect, but to for verifying oscillation wave detection system itself performance and precision and anti-interference and positioning it is fixed
In terms of amount ability, related research result there is no, therefore to the confidence level and science for using oscillation wave partial discharge detecting system to detect
It is not high, it is difficult to meet the needs of marketing.So for oscillation wave detection system itself verification devise it is a can be defeated
The equipment of standard partial discharge pulse signal out, current existing Related product are directed to the shelf depreciations band such as transformer and GIS mostly
The calibration of electro-detection or on-Line Monitor Device is not suitable for the verification of cable oscillatory wave partial discharge test macro.
Summary of the invention
At least one of regarding to the issue above, the present invention provides a kind of standards for oscillation wave partial discharge test
Discharge capacity signal generation apparatus, by the way that boost module, standard capacitance module and controller and power management module to be incorporated in
Together, realize that the oscillation pulse signal of Standard clectrical quantity periodically exports, electric discharge accuracy of measurement is high, and output area is wide, can be accurate
To cable oscillation wave fault detection system carry out verify and for verify oscillation wave partial discharge test macro itself performance and
Precision.
To achieve the above object, the present invention provides a kind of standard discharge capacity signals for oscillation wave partial discharge test
Generating device, comprising: controller, power management module, battery module, key module, D/A signal conversion module, boost module,
Analog switch module, standard capacitance module and signal output interface；The controller is connected with the power management module, institute
It states power management module to be connected with the battery module, the battery module is to each module for power supply, the power management module
The voltage that the battery module exports is converted into each module required voltage；The controller respectively with the key module and
The D/A signal conversion module is connected, and the D/A signal conversion module is connected with the boost module, the controller,
The D/A signal conversion module and the boost module are connected with the analog switch module respectively, the analog switch mould
Block is connected with the standard capacitance module, and the standard capacitance module is connected with the signal output interface；The control
Device determines corresponding digital signal according to the input information of the key module received, and by the digital signal export to
The digital signal is converted to corresponding analog signal, institute by the D/A signal conversion module, the D/A signal conversion module
Boost module is stated by the voltage amplification of the analog signal and is exported to the analog switch module, the analog switch module choosing
Lead to the output voltage signal of the D/A signal conversion module or the output voltage signal of the boost module, the analog switch
Module controls the switch and on-off of the standard capacitance module, and the standard capacitance module exports the analog switch module
Voltage signal is converted to controllable local discharge pulse signal, and by the controllable local discharge pulse signal transmission to the signal
Output interface.
In the above-mentioned technical solutions, it is preferable that the standard discharge capacity signal hair for oscillation wave partial discharge test
Generating apparatus further includes display module, and the display module is connected with the controller, and the display module receives the control
The control instruction of device is to show that information occurs for signal.
In the above-mentioned technical solutions, it is preferable that the standard discharge capacity signal hair for oscillation wave partial discharge test
Generating apparatus further includes memory module, and the memory module is connected with the controller, and the memory module is described for storing
The current working condition of signal generation apparatus, and be sent to the working condition after the signal generation apparatus power-off restarting
The controller.
In the above-mentioned technical solutions, it is preferable that the standard discharge capacity signal hair for oscillation wave partial discharge test
Generating apparatus further includes charging interface, and the charging interface is connected with the power management module, and the power management module exists
The charging interface charges to the battery module after being connected to external power supply.
In the above-mentioned technical solutions, it is preferable that the standard capacitance module was used to export the analog switch module
Step waveform voltage signal is converted to controllable local discharge pulse signal, and passes through differential circuit for the controllable local discharge arteries and veins
Rush signal and be transmitted to the signal output interface, the signal output interface by the controllable local discharge pulse signal transmission extremely
Load to be tested.
In the above-mentioned technical solutions, it is preferable that the power management module monitors the operational order of the controller, and
Monitor that the controller disconnects the power supply to each module when in preset time without operational order.
In the above-mentioned technical solutions, it is preferable that the boost module is used for the mould for exporting the D/A signal conversion module
The preset multiple of voltage amplification of quasi- signal, so that the voltage of output signal reaches required voltage value.
In the above-mentioned technical solutions, it is preferable that the battery module uses lithium battery, lead storage battery or manganese-zinc battery, institute
Display module is stated using cathode-ray tube display, plasma display or liquid crystal display.
Compared with prior art, the invention has the benefit that by by boost module, standard capacitance module and controller
And power management module is combined together, and realizes that the oscillation pulse signal of Standard clectrical quantity periodically exports, electric discharge accuracy of measurement is high,
Output area is wide, accurately can verify and for verifying oscillation wave partial discharge to cable oscillation wave fault detection system
The performance and precision of test macro itself.
Detailed description of the invention
Fig. 1 is that the disclosed standard discharge capacity signal for oscillation wave partial discharge test of an embodiment of the present invention occurs
The structural schematic diagram of device；
Fig. 2 is the disclosed standard discharge capacity signal hair for oscillation wave partial discharge test of another embodiment of the invention
The structural schematic diagram of generating apparatus.
Corresponding relationship in figure, between each component and appended drawing reference are as follows:
1. controller, 2. power management modules, 3. battery modules, 4. display modules, 5.D/A signal conversion module, 6. liters
Die block, 7. analog switch modules, 8. standard capacitance modules, 9. memory modules, 10. signal output interfaces, 11. key modules,
12. charging interface.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention is described in further detail with reference to the accompanying drawing:
As shown in Figure 1, a kind of standard discharge capacity signal for oscillation wave partial discharge test provided according to the present invention
Generating device, comprising: controller 1, battery module 3, key module 11, D/A signal conversion module 5, rises power management module 2
Die block 6, analog switch module 7, standard capacitance module 8 and signal output interface 10；Controller 1 and 2 phase of power management module
Connection, power management module 2 is connected with battery module 3, and battery module 3 is to each module for power supply, and power management module 2 is by battery
The voltage that module 3 exports is converted to each module required voltage；Controller 1 respectively with key module 11 and D/A signal modulus of conversion
Block 5 is connected, and D/A signal conversion module 5 is connected with boost module 6, controller 1, D/A signal conversion module 5 and boosting mould
Block 6 is connected with analog switch module 7 respectively, and analog switch module 7 is connected with standard capacitance module 8, standard capacitance module 8
It is connected with signal output interface 10；Controller 1 determines corresponding number according to the input information of the key module 11 received
Signal, and digital signal is exported to D/A signal conversion module 5, D/A signal conversion module 5 converts digital signals into correspondence
Analog signal, boost module 6 is by the voltage amplification of analog signal and exports to analog switch module 7, and analog switch module 7 is selected
The output voltage signal of logical D/A signal conversion module 5 or the output voltage signal of boost module 6, the control mark of analog switch module 7
The switch and on-off of pseudo-capacitance module 8, standard capacitance module 8 are converted to the voltage signal that analog switch module 7 exports controllably
Partial discharge pulse's signal, and by controllable local discharge pulse signal transmission to signal output interface 10.
In this embodiment, controller 1 is the core of entire signal generation apparatus, and controller 1 is defeated according to key module 11
The discharge capacity information entered, control D/A signal conversion module 5 export preset voltage, and boosted module 6 makes the voltage of output after amplifying
Reach voltage value required for output discharge capacity, standard capacitance module 8 converts controllable part for step voltage waveform signal and puts
Electric impulse signal, and controllable local discharge pulse signal is delivered to by signal output interface 10 by differential circuit.Specifically, it uses
The information that family is needed by the input of key module 11, controller 1 is received (to be increased according to the operation that user carries out key module 11
Amount, changes output pulse frequency and start and close at decrement), export the size of discharge capacity signal as needed to adjust D/A letter
The output of number conversion module 5 and boost module 6 export, and control analog switch module 7 and switch output signal.Power management module 2
The voltage that battery module 3 exports is converted into various voltages required for each unit module work in equipment, receives controller 1
Signal is controlled with voltage required for each module of supply arrangement.D/A signal conversion module 5 receives the signal of controller 1, and will count
Word signal is converted to analog signal.Boost module 6 receives the voltage signal that D/A signal conversion module 5 exports, and low-voltage is amplified
Certain multiple, such as 200 times, so that the discharge capacity pulse signal of output is reached required value.The signal generation apparatus can connect
The continuous Apparent discharge magnitude for generating any size within the scope of 1-100000pC, output frequency 50Hz~1000Hz is adjustable, and discharges
Accuracy of measurement is high, strong antijamming capability.
As shown in Fig. 2, in the above embodiment, it is preferable that the standard discharge capacity for oscillation wave partial discharge test is believed
Number generating device further includes display module 4, and display module 4 is connected with controller 1, and display module 4 receives the control of controller 1
Instruction thinks that user intuitively shows that information, such as output discharge capacity, battery capacity and output pulse occur for required signal
Signal frequency etc..
In the above embodiment, it is preferable that the standard discharge capacity signal generation apparatus for oscillation wave partial discharge test
It further include memory module 9, memory module 9 is connected with controller 1, and it is current that memory module 9 is used to storing signal generation apparatus
Working condition, and working condition is sent to controller 1 after signal generation apparatus power-off restarting, the shape of last time operation
The state realization of state and booting next time is interacted with memory module 9.
In the above embodiment, it is preferable that the standard discharge capacity signal generation apparatus for oscillation wave partial discharge test
It further include charging interface 12, charging interface 12 is connected with power management module 2, and power management module 2 connects in charging interface 12
It charges after being connected to external power supply to battery module 3.
In the above embodiment, it is preferable that standard capacitance module 8 is used for the step waveform for exporting analog switch module 7
Voltage signal is converted to controllable local discharge pulse signal, and by differential circuit by controllable local discharge pulse signal transmission extremely
Signal output interface 10, signal output interface 10 is by controllable local discharge pulse signal transmission to load to be tested.
In the above embodiment, it is preferable that the operational order of 2 monitor controller 1 of power management module, and monitoring to control
Device 1 processed disconnects the power supply to each module when in preset time without operational order, for example does not carry out to equipment in 2 minutes
Operation makes its automatic power-off shutdown, to reduce the power consumption of equipment.
In the above embodiment, it is preferable that the analog signal that boost module 6 is used to export D/A signal conversion module 5
The preset multiple of voltage amplification, so that the voltage of output signal reaches required voltage value.
In the above embodiment, it is preferable that battery module 3 is using lithium battery, lead storage battery or manganese-zinc battery, display module
4 using cathode-ray tube display, plasma display or liquid crystal display.
Include: to the detailed process that is verified of discharge capacity signal that signal generation apparatus in above-described embodiment generates
(1) oscillation wave partial discharge test macro is good with tested cable connection；
(2) start test macro and establish engineering input parameters, into system calibration interface；
(3) signal generation apparatus is accessed into test macro to be verified；
(4) according to the output for needing to adjust the signal generation apparatus of test macro to be verified, outputting standard from low to high
Discharge capacity signal；
(5) standard discharge capacity signal is input to entire test macro by the signal generation apparatus；
(6) it after system detection to be tested to each standard discharge capacity signal, saves and records after it is stablized；
(7) calibration equipment is removed after verifying, starts pressurization and tested cable is tested；
(8) discharge signal for saving and recording tested cable, is compared with standard calibration waveform, accurately obtains tested electricity
The discharge capacity of cable.
The above is embodiments of the present invention, the mark for oscillation wave partial discharge test proposed according to the present invention
Quasi- discharge capacity signal generation apparatus, by combining boost module, standard capacitance module and controller and power management module
Together, it realizes that the oscillation pulse signal of Standard clectrical quantity periodically exports, can continuously generate any within the scope of 1-100000pC
The Apparent discharge magnitude of size, output frequency 50Hz~1000Hz is adjustable, and electric discharge accuracy of measurement is high, and output area is wide, can be accurate
To cable oscillation wave fault detection system carry out verify and for verify oscillation wave partial discharge test macro itself performance and
Precision.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of standard discharge capacity signal generation apparatus for oscillation wave partial discharge test characterized by comprising control
Device, power management module, battery module, key module, D/A signal conversion module, boost module, analog switch module, standard
Capacitance module and signal output interface；
The controller is connected with the power management module, and the power management module is connected with the battery module,
The voltage that the battery module exports is converted to each module to each module for power supply, the power management module by the battery module
Required voltage；
The controller is connected with the key module and the D/A signal conversion module respectively, the D/A signal modulus of conversion
Block is connected with the boost module, the controller, the D/A signal conversion module and the boost module respectively with it is described
Analog switch module is connected, and the analog switch module is connected with the standard capacitance module, the standard capacitance module
It is connected with the signal output interface；
The controller determines corresponding digital signal according to the input information of the key module received, and by the number
Word signal is exported to the D/A signal conversion module, and the D/A signal conversion module is converted to the digital signal corresponding
Analog signal, the boost module is by the voltage amplification of the analog signal and exports to the analog switch module, the mould
Quasi- switch module gates the output voltage signal of the D/A signal conversion module or the output voltage signal of the boost module,
The analog switch module controls the switch and on-off of the standard capacitance module, and the standard capacitance module opens the simulation
The voltage signal for closing module output is converted to controllable local discharge pulse signal, and the controllable local discharge pulse signal is passed
Transport to the signal output interface.
2. the standard discharge capacity signal generation apparatus according to claim 1 for oscillation wave partial discharge test, special
Sign is, further includes display module, and the display module is connected with the controller, and the display module receives the control
The control instruction of device is to show that information occurs for signal.
3. the standard discharge capacity signal generation apparatus according to claim 1 or 2 for oscillation wave partial discharge test,
It is characterized in that, further includes memory module, the memory module is connected with the controller, and the memory module is for storing institute
The current working condition of signal generation apparatus is stated, and sends the working condition after the signal generation apparatus power-off restarting
To the controller.
4. the standard discharge capacity signal generation apparatus according to claim 1 or 2 for oscillation wave partial discharge test,
It is characterized in that, further includes charging interface, the charging interface is connected with the power management module, the power management module
It charges after the charging interface is connected to external power supply to the battery module.
5. the standard discharge capacity signal generation apparatus according to claim 1 for oscillation wave partial discharge test, special
Sign is that the standard capacitance module is for being converted to controllably the step waveform voltage signal that the analog switch module exports
Partial discharge pulse's signal, and connect the controllable local discharge pulse signal transmission to signal output by differential circuit
Mouthful, the signal output interface is by the controllable local discharge pulse signal transmission to load to be tested.
6. the standard discharge capacity signal generation apparatus according to claim 1 for oscillation wave partial discharge test, special
Sign is that the power management module monitors the operational order of the controller, and is monitoring the controller when default
It is interior without operational order when disconnect power supply to each module.
7. the standard discharge capacity signal generation apparatus according to claim 1 for oscillation wave partial discharge test, special
Sign is, preset times of voltage amplification of the analog signal that the boost module is used to export the D/A signal conversion module
Number, so that the voltage of output signal reaches required voltage value.
8. the standard discharge capacity signal generation apparatus according to claim 2 for oscillation wave partial discharge test, special
Sign is that the battery module uses lithium battery, lead storage battery or manganese-zinc battery, and the display module is aobvious using cathode-ray tube
Show device, plasma display or liquid crystal display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538904.4A CN109342986A (en) | 2018-12-14 | 2018-12-14 | Standard discharge capacity signal generation apparatus for oscillation wave partial discharge test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538904.4A CN109342986A (en) | 2018-12-14 | 2018-12-14 | Standard discharge capacity signal generation apparatus for oscillation wave partial discharge test |
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| CN109342986A true CN109342986A (en) | 2019-02-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060786A (en) * | 2019-12-16 | 2020-04-24 | 山东康威通信技术股份有限公司 | Partial discharge generating device and method with adjustable discharge quantity and density based on phase |
| CN111736049A (en) * | 2020-08-05 | 2020-10-02 | 广东电网有限责任公司 | Generator for simulating partial discharge signal |
| CN111781411A (en) * | 2020-07-20 | 2020-10-16 | 广东电网有限责任公司电力科学研究院 | Partial discharge pulse sequence generation method and device |
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| CN209342896U (en) * | 2018-12-14 | 2019-09-03 | 西安远测电力科技有限公司 | Standard discharge capacity signal generation apparatus for oscillation wave partial discharge test |
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| CN103176160A (en) * | 2013-03-11 | 2013-06-26 | 广东电网公司电力科学研究院 | Local discharge simulation calibrating device |
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| CN111060786A (en) * | 2019-12-16 | 2020-04-24 | 山东康威通信技术股份有限公司 | Partial discharge generating device and method with adjustable discharge quantity and density based on phase |
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