CN110389245A - A kind of Intelligent type DC high voltage generator all-in-one machine - Google Patents
A kind of Intelligent type DC high voltage generator all-in-one machine Download PDFInfo
- Publication number
- CN110389245A CN110389245A CN201810351740.8A CN201810351740A CN110389245A CN 110389245 A CN110389245 A CN 110389245A CN 201810351740 A CN201810351740 A CN 201810351740A CN 110389245 A CN110389245 A CN 110389245A
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- voltage
- high voltage
- intelligent type
- circuit
- voltage generator
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- 238000012360 testing method Methods 0.000 claims abstract description 24
- 238000005516 engineering process Methods 0.000 claims abstract description 19
- 238000009413 insulation Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 7
- 230000036039 immunity Effects 0.000 claims abstract description 6
- 238000013461 design Methods 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000005669 field effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 2
- 229960001296 zinc oxide Drugs 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- -1 metallurgy Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/28—Provision in measuring instruments for reference values, e.g. standard voltage, standard waveform
-
- 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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
Abstract
A kind of Intelligent type DC high voltage generator all-in-one machine, including medium frequency inverter circuit, the standby pressure unit, pwm pulse modulation module, voltage and current protection location, control circuit, measuring circuit, signal processing module, display, keyboard of rectification.Wherein the standby pressure unit of rectification is connected with medium frequency inverter circuit, pwm pulse modulation module；Control circuit is connected with voltage and current protection location, measuring circuit, keyboard；Signal processing module is connected with measuring circuit, display.The present invention innovates employ new technology new insulation material and immunity moduleization design, meets output voltage and reaches 60KV, carries out Insulation test to test item, solves the technical problem that existing high voltage direct current generator all-in-one machine can only be output to 40KV.
Description
Technical field
The present invention relates to a kind of high pressure generators in high voltage electric equipment DC break down voltage test field, more particularly, to one kind
Intelligent type DC high voltage generator all-in-one machine.
Background technique
High voltage direct current generator is widely used in the dynamic test department of the enterprises such as power department, industrial and mineral, metallurgy, steel.
DC high potential test is carried out to high voltage electric equipments such as Zinc-Oxide Arrester, power cable, transformer, generators, is high-voltage electricity
Gas equipment carries out the important instrument of DC break down voltage test or direct current leakage current testing, and newly-built distribution line domestic at present is by before
10KV power supply system upgrade to the more stable 20KV power supply system of power supply performance, the high voltage direct current generator one of existing 40KV
Body machine, be unable to satisfy the electrical equipment of 20KV grade insulation performance test request and long distance transmission line, power transmission cable,
The test of large capacity test product insulation performance.And current high voltage direct current generator all-in-one machine generallys use PWM technology and measures,
This technology measure data precision is low, and digital dial switch can only set voltage value, is unable to setting electric current value, and have voltage drift
Problem.
Summary of the invention
The present invention provides a kind of Intelligent type DC high voltage generator all-in-one machine, Intelligent type DC high voltage generator one
Machine is designed using new technology, new material and immunity module, is met when output voltage reaches 60KV and is carried out insulation survey to test item
Examination.Using AIPWM technology, the inaccurate linearity of PWM technology is adjusted, accuracy of instrument is made to have obtained significantly mentioning
It is high；Overvoltage protection and overcurrent protection are set using AI technology, voltage value can only be set by solving digital dial switch, cannot be set
Current value has the problem of voltage drift；Integrated high pressure design, is not necessarily to times pressure cylinder, directly output high pressure.
The technical scheme is that
The present invention includes medium frequency inverter circuit, the standby pressure unit of rectification, pwm pulse modulation module, voltage and current protection location, control
The composition such as circuit, measuring circuit, signal processing module, display, keyboard.The standby pressure unit of rectification and medium frequency inverter circuit, PWM arteries and veins
Modulated module is connected；Control circuit is connected with voltage and current protection location, measuring circuit, keyboard；Signal processing module with
Measuring circuit, display are connected.
The medium frequency inverter circuit is inverse by medium-frequency high-voltage transformer and high-power field-effect tube (MOSFET) bridge-type
Become composition.
The standby pressure unit of the rectification is rectification and the guide function using diode, voltage is stored to respectively respective
It on capacitor, is together in series according to the principle that polarity is added, output is higher than the high pressure of input voltage.
The pwm pulse modulation module is a kind of numeral output using microprocessor to control to analog circuit
The effective technology of system, it is spike train that each pulse width is equal as PWM waveform, passes through the period for changing spike train
The width or duty ratio that with frequency modulation, can change pulse can make voltage and frequency coordination using suitable control method with pressure regulation
Variation.
The voltage and current protection location is to set overvoltage protection and overcurrent protection by using AI technology, solves number
Word dial switch can only set voltage value, be unable to setting electric current value, and have the problem of voltage drift, protect in electronic circuit
Component is not damaged when by over-voltage, overcurrent, surge, electromagnetic interference.
The control circuit is made of single-chip microcontroller, driving circuit and controlled device.
The measuring circuit carries out sampling analysis, and and feedback signal to voltage signal, the current signal etc. in tested product
It is compared, then really and accurately measurement data is calculated by the integrated computation device in control circuit.
The display is that large-size screen monitors are shown, and have backlight, can show real-time test data.
The keyboard uses touch key, and user can carry out the setting of data by keyboard.
High-voltage line accessory power outlet in the present invention is designed using new technology and new material, immunity module, can meet output
Voltage reaches 60KV, meets insulation performance test request and long distance transmission line, transmission of electricity to the electrical equipment of 20KV grade
Cable, large capacity test item carry out Insulation test.
The beneficial effects of the present invention are:
1, it is designed using new technology, new material and immunity module, meets when output voltage reaches 60KV and test item is carried out absolutely
Edge test.
2, using AIPWM technology, the inaccurate linearity of PWM technology is adjusted, has obtained accuracy of instrument greatly
Amplitude improves.
3, overvoltage protection and overcurrent protection setting using AI technology, voltage value can only be set by solving digital dial switch,
The problem of being unable to setting electric current value and voltage drift.
4, it on the basis of keeping manual 0.75UDC1mA function button, increases the full-automatic Zinc-Oxide Arrester of AI and surveys
Amount, the test of cable segmented pressure, automatic voltage withstanding test function.
5, integrated high pressure designs, and is not necessarily to times pressure cylinder, directly output high pressure.
Detailed description of the invention
Fig. 1 is circuit structure diagram of the present invention.
Fig. 2 is structure of the invention figure.Wherein 1 cabinet, 2 high-voltage line accessory power outlets, 3 high-voltage lines shield column, 4 printers, 5 liquid
Crystalline substance screen, 6 alarm lamps, 7 touch keyboards, 8 adjusting pressuring knobs, 9 power switches, 10 power outlets, 11 emergency stop switch, 12 earthing rods, 13
Intermediate frequency output, 14 RS232 interfaces, 15 antennas (apolegamy).
Specific embodiment
As shown in Figure 1, Intelligent type DC high voltage generator all-in-one machine includes medium frequency inverter circuit, the standby pressure unit, PWM of rectification
The groups such as pulse modulation module, voltage and current protection location, control circuit, measuring circuit, signal processing module, display, keyboard
At.Wherein the standby pressure unit of rectification is connected with medium frequency inverter circuit, pwm pulse modulation module；Control circuit and voltage and current are protected
Unit, measuring circuit, keyboard is protected to be connected；Signal processing module is connected with measuring circuit, display.The medium frequency inverter circuit
It is made of medium-frequency high-voltage transformer and high-power field-effect tube (MOSFET) bridge type inverse.The standby pressure unit of rectification is benefit
Voltage is stored on respective capacitor by rectification and guide function with diode respectively, according to polarity be added principle by its
It is together in series, output is higher than the high pressure of input voltage.The pwm pulse modulation module is a kind of number using microprocessor
Come the effective technology that is controlled analog circuit, it is spike train that each pulse width is equal as PWM for word output
Waveform, the period by changing spike train with frequency modulation, can change the width of pulse or duty ratio can be with pressure regulation, using suitable control
Method can be such that voltage and frequency coordination changes.The voltage and current protection location is to set overvoltage protection by using AI technology
And overcurrent protection, it solves the problem of digital dial switch can only set voltage value, be unable to setting electric current value and voltage drift, protects
The component protected in electronic circuit is not damaged when by over-voltage, overcurrent, surge, electromagnetic interference.The control electricity
Route single-chip microcontroller, driving circuit and controlled device composition.The measuring circuit is to voltage signal, the current signal etc. in tested product
Sampling analysis is carried out, and is compared with feedback signal, then calculated really and accurately by the integrated computation device in control circuit
Measurement data.The display is that large-size screen monitors are shown, and have backlight, can show real-time test data.The keyboard is using light
Touch key, user can carry out the setting of data by keyboard.As shown in Fig. 2, the high-voltage line accessory power outlet, uses new skill
Art, new material and immunity module design, can meet output voltage and reach 60KV, meet to the exhausted of the electrical equipment of 20KV grade
Edge performance test requires and long distance transmission line, power transmission cable, large capacity test item carry out Insulation test.
Claims (9)
1. a kind of Intelligent type DC high voltage generator all-in-one machine, feature includes: medium frequency inverter circuit, the standby pressure unit, PWM of rectification
Pulse modulation module, voltage and current protection location, control circuit, measuring circuit, signal processing module, display, keyboard etc.；This
Innovation is employed new technology, new insulation material and immunity moduleization design, and is met instrument output voltage and is reached 60KV, right
Test item carries out Insulation test, solves the technical problem that existing high voltage direct current generator all-in-one machine can only be output to 40KV.
2. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the medium frequency inverter
Unit is made of medium-frequency high-voltage transformer and high-power field-effect tube (MOSFET) bridge type inverse.
3. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the standby pressure of rectification
Unit is the rectification and guide function using diode, and voltage is stored to respectively on respective capacitor, is added according to polarity former
Reason is connected, and output is higher than the high pressure of input voltage.
4. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the pwm pulse
Modulation module is a kind of effective technology that the numeral output using microprocessor controls analog circuit, it is each
For the spike train that width is equal as PWM waveform, the period by changing spike train changes the width or duty of pulse come frequency modulation
Than carrying out pressure regulation, voltage and frequency coordination can be made to change using suitable control method.
5. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the voltage and current
Protection location is to set overvoltage protection and overcurrent protection by using AI technology, and voltage can only be set by solving digital dial switch
Value, the problem of being unable to setting electric current value and voltage drift, protect component in electronic circuit by over-voltage, overcurrent, surge,
It is not damaged when electromagnetic interference.
6. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the control circuit
It is made of single-chip microcontroller, driving circuit and controlled device.
7. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the measuring circuit
Sampling analysis is carried out to voltage signal, the current signal etc. in test item, and is compared with feedback signal, then by control circuit
In integrated computation device calculate really and accurately measurement data.
8. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the display is
Large-size screen monitors are shown, and have backlight, can show real-time test data.
9. a kind of Intelligent type DC high voltage generator all-in-one machine according to claim 1, characterized in that the keyboard uses
Touch key, user can carry out the setting of data by keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351740.8A CN110389245A (en) | 2018-04-19 | 2018-04-19 | A kind of Intelligent type DC high voltage generator all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810351740.8A CN110389245A (en) | 2018-04-19 | 2018-04-19 | A kind of Intelligent type DC high voltage generator all-in-one machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110389245A true CN110389245A (en) | 2019-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810351740.8A Pending CN110389245A (en) | 2018-04-19 | 2018-04-19 | A kind of Intelligent type DC high voltage generator all-in-one machine |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623632U (en) * | 2010-02-10 | 2010-11-03 | 武汉市泛科变电检修设备制造有限公司 | DC high-voltage power supply device |
| CN202261024U (en) * | 2011-08-19 | 2012-05-30 | 肖智俊 | Intelligent type DC high voltage generator |
| CN203313081U (en) * | 2013-06-08 | 2013-11-27 | 国家电网公司 | Intelligent DC high voltage generator |
| CN204832431U (en) * | 2015-08-06 | 2015-12-02 | 江苏省电力公司苏州供电公司 | High voltage DC tests integrated device |
| CN205490210U (en) * | 2016-03-25 | 2016-08-17 | 苏州华电电气股份有限公司 | Intelligent direct current high stability high voltage generator |
| CN105932989A (en) * | 2016-03-23 | 2016-09-07 | 西安建筑科技大学 | Adjustable pulse signal generating device |
| CN207081800U (en) * | 2017-05-16 | 2018-03-09 | 武汉拓普联合电力设备有限公司 | A kind of direct current high voltage experimental device |
-
2018
- 2018-04-19 CN CN201810351740.8A patent/CN110389245A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201623632U (en) * | 2010-02-10 | 2010-11-03 | 武汉市泛科变电检修设备制造有限公司 | DC high-voltage power supply device |
| CN202261024U (en) * | 2011-08-19 | 2012-05-30 | 肖智俊 | Intelligent type DC high voltage generator |
| CN203313081U (en) * | 2013-06-08 | 2013-11-27 | 国家电网公司 | Intelligent DC high voltage generator |
| CN204832431U (en) * | 2015-08-06 | 2015-12-02 | 江苏省电力公司苏州供电公司 | High voltage DC tests integrated device |
| CN105932989A (en) * | 2016-03-23 | 2016-09-07 | 西安建筑科技大学 | Adjustable pulse signal generating device |
| CN205490210U (en) * | 2016-03-25 | 2016-08-17 | 苏州华电电气股份有限公司 | Intelligent direct current high stability high voltage generator |
| CN207081800U (en) * | 2017-05-16 | 2018-03-09 | 武汉拓普联合电力设备有限公司 | A kind of direct current high voltage experimental device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191029 |
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| RJ01 | Rejection of invention patent application after publication |