CN110460067A - A kind of intelligent capacitor and its display control method - Google Patents
A kind of intelligent capacitor and its display control method Download PDFInfo
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- CN110460067A CN110460067A CN201910867975.7A CN201910867975A CN110460067A CN 110460067 A CN110460067 A CN 110460067A CN 201910867975 A CN201910867975 A CN 201910867975A CN 110460067 A CN110460067 A CN 110460067A
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- 239000003990 capacitor Substances 0.000 title claims abstract description 137
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000004075 alteration Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims 2
- 230000004888 barrier function Effects 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a kind of intelligent capacitor and its display control method, the connecting terminal of the capacitor includes UA interface, UB interface, UC interface, current sample interface, network communication interface, indicator light interface and UN interface；Wherein, the UA interface of multiple capacitors, UB interface, UC interface and UN interface are connected with the Ua interface of controller, Ub interface, Uc interface and Un interface respectively；It is connected between two neighboring capacitor by current sample interface, network communication interface, after multiple capacitors are connected, any one capacitor becomes master control capacitor, remaining is all auxiliary control capacitor, low-voltage reactive power automatic control system is constituted with this, if individual slave failures, act without switching, do not influence remaining work, if hostdown, remaining capacitor automatically generates a new master control capacitor using sequential competition, forms a new system；The identical capacitor of capacity presses switching cycle principle, and the different capacitor of capacity mends principle switching by suitable.
Description
Technical field
The present invention relates to electrical equipment fields, and in particular to a kind of intelligent capacitor.
Background technique
Existing reactive power compensation device for capacitor, bulky and heavy, power consumption height, price height；Existing capacitor by
The composition such as controller, air switch, A.C. contactor, silicon-controlled, electrothermal relay, capacitor, calorific value is big, and replacement component is multiple
It is miscellaneous, it is therefore necessary to research and develop a novel intelligent capacitor.
Summary of the invention
Insufficient according to prior art, the present invention provides a kind of intelligent capacitor, to solve it is of the existing technology not
Foot.
The present invention is realized by following technical scheme:
A kind of intelligent capacitor, the connecting terminal of the capacitor include UA interface, UB interface, UC interface, current sample interface, net
Network communication interface, indicator light interface and UN interface；Wherein, the UA interface of multiple capacitors, UB interface, UC interface and UN interface point
It is not connected with the Ua interface of controller, Ub interface, Uc interface and Un interface；It is connect between two neighboring capacitor by current sample
Mouthful, network communication interface be connected, multiple capacitors be connected after, any one capacitor become master control capacitor, remaining all supplemented by
Capacitor is controlled, low-voltage reactive power automatic control system is constituted with this, if individual slave failures, act without switching, do not influence it
Remaining work, if hostdown, remaining capacitor automatically generates a new master control capacitor using sequential competition, forms one
New system；The identical capacitor of capacity presses switching cycle principle, and the different capacitor of capacity mends principle switching by suitable.
Further, the indicator light interface includes HL1 mouthfuls, HL2 mouthfuls and HL3 mouthfuls；Wherein, refer to for A phase capacitor switching for HL1 mouthfuls
Show lamp, HL2 mouthfuls are B phase capacitor switching indicator light, and HL3 mouthfuls are C phase capacitor switching indicator light.
Further, the distance between two capacitors are not less than 50mm.
Further, the network communication interface of first capacitor is connected with the current sample interface of second capacitor, the
The network communication interface of two capacitors is connected with the current sample interface of third capacitor, and the network of third capacitor is logical
Communication interface is connected with the current sample interface of the 4th capacitor.
Further, temperature sensor is equipped in the low voltage power capacitor in capacitor, it can be anti-by temperature sensor
It reflects overvoltage of capacitor, crosses harmonic wave, cause capacitor internal to generate heat under leakage current is excessive and the excessively high situation of environment temperature, realized
Temperature protection is more than automatic excision capacitor after set temperature；
Further, the network communication interface is connected with background computer, to carry out electrical power distribution integrated management.
Further, display is equipped on the capacitor, to show protection act type.
A kind of display control method of above-mentioned intelligent capacitor, switching state indicator light: A phase, B phase, C phase respectively refers to
Show capacitance state；Investment is lighted, is not worked as excision；Red light is failure；After system electrification, into main menu, delay about 5 seconds laggard
Enter automatic operating state；It is automatically closed within LCD backlight 180 seconds, activates backlight by any key.
Further, automatic operating state shares 8 screens, and operation upstream or downstream key is recyclable to show every operation of power networks number
According to；
First screen, each phase real-time voltage of display, electric current, zero-sequence current, the road 1-12 capacitor switching state；
Second screen, each phase active power of display, reactive power, power factor, the road 13-20 capacitor switching state；
Third screen shows this group of capacitance current, temperature, each road capacitor switching state；
4th screen, each phase voltage of display, current harmonics total harmonic distortion, mains frequency, the road 29-32 capacitor switching state；
5th screen, each 3,5,7,9,11 voltage harmonic aberration rates of phase of display；
13,15,17,19,21 6th screen, display voltage harmonic aberration rates；
7th screen, each 3,5,7,9,11 primary current percent harmonic distortion of phase of display；
8th screen, 13,15,17,19,21 primary current percent harmonic distortions of display.
The invention has the advantages that:
The bulky and bulky tactic pattern of traditional reactive power compensator is changed, so that low-pressure reactive compensation of new generation be made to set
Standby to have compensation effect more preferable, volume is smaller, and power consumption is lower, and price is more honest and cleaner, and save the cost is more, and use is more flexible, maintenance
More convenient, the service life is longer, and the higher feature of reliability has adapted to modern power network to the requirements at the higher level of reactive compensation.It protects
Hinder system voltage and stablizes qualification；Increase power factor predicts investment capacitor, if investment capacitor overfill, does not throw
Enter, avoids idle excess and impose a fine；Reliability 100% is controlled, distribution transforming active power output is improved, reduces increase-volume investment, decreasing loss section
Energy.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.Below with reference to attached
The present invention is described in detail for figure and embodiment.
Fig. 1 is the sub- distribution map of capacitor terminal；
Fig. 2 is capacitor and controller connection figure；
Fig. 3 is the first screen display interface of display；
Fig. 4 is the second screen display interface of display；
Fig. 5 is the third screen display interface of display；
Fig. 6 is the 4th screen display interface of display；
Fig. 7 is the 5th screen display interface of display；
Fig. 8 is the 6th screen display interface of display；
Fig. 9 is the 7th screen display interface of display；
Figure 10 is the 8th screen display interface of display.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in embodiment
It states.Obviously, described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Bright embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1 and Figure 2, a kind of intelligent capacitor, the connecting terminal of the capacitor include that UA interface, UB interface, UC connect
Mouth, current sample interface, network communication interface, indicator light interface and UN interface；Wherein, UA interface, the UB of multiple capacitors connect
Mouth, UC interface and UN interface are connected with the Ua interface of controller, Ub interface, Uc interface and Un interface respectively；Two neighboring capacitor
It is connected between device by current sample interface, network communication interface, after multiple capacitors are connected, any one capacitor becomes
Master control capacitor, remaining is all auxiliary control capacitor, is constituted low-voltage reactive power automatic control system with this, if individual slave failure, not into
The movement of row switching, does not influence remaining work, if hostdown, remaining capacitor automatically generates one newly using sequential competition
Master control capacitor, form a new system；The identical capacitor of capacity presses switching cycle principle, and the different capacitor of capacity is pressed
It is suitable to mend principle switching.
It should be noted that the indicator light interface includes HL1 mouthfuls, HL2 mouthfuls and HL3 mouthfuls；Wherein, HL1 mouthfuls are A phase capacitor
Switching indicator light, HL2 mouthfuls are B phase capacitor switching indicator light, and HL3 mouthfuls are C phase capacitor switching indicator light.
The distance between two capacitors are not less than 50mm.
The network communication interface of first capacitor is connected with the current sample interface of second capacitor, second capacitor
The network communication interface of device is connected with the current sample interface of third capacitor, the network communication interface of third capacitor with
The current sample interface of 4th capacitor is connected.
It is equipped with temperature sensor in low voltage power capacitor in capacitor, capacitor is able to reflect by temperature sensor
Overvoltage crosses harmonic wave, causes capacitor internal to generate heat under leakage current is excessive and the excessively high situation of environment temperature, realizes that excess temperature is protected
Shield is more than automatic excision capacitor after set temperature；
The network communication interface is connected with background computer, to carry out electrical power distribution integrated management.
Display is equipped on the capacitor, to show protection act type.
To sum up, capacitor of the invention changes the bulky and bulky tactic pattern of traditional reactive power compensator, from
And make low-pressure reactive compensation equipment of new generation have compensation effect it is more preferable, volume is smaller, and power consumption is lower, and price is more honest and cleaner, save at
This is more, and use is more flexible, and maintenance is more convenient, and the service life is longer, and the higher feature of reliability has adapted to modern power network
To the requirements at the higher level of reactive compensation.
Realize voltage zero-cross investment, current over-zero excision, switching shoves very little, substantially increases the proof voltage of equipment, electricity
Stream impact, small power consumption reduce in conventional capacitor cabinet 80% energy consumption；The standardization of products, modularization, instead of traditional control
Device processed, air switch, A.C. contactor, silicon-controlled, electrothermal relay, capacitor, are combined into an entirety, calorific value is small, group
Building blocks accumulation mode is used when screen installation, capacitor only needs the simple and quick replacement of monomer when damaging；More capacitor group screens
Installation, production hour reduces 60% or more than traditional mode, while reducing by 80% connecting line, reduces by 80% node, in cabinet
Succinctly, it is quickly assembled in use site, substantially increases the production efficiency of complete factory；Small product size is small, and wiring is simple, with
The increase of electric custom power load can increase the quantity of capacitor at any time, change normal mode because of wiring complexity, one one-tenth is not
The limitation of change adapts to the needs of enterprise development, can be with stage design flood.
A kind of display control method of intelligent capacitor, switching state indicator light: A phase, B phase, C phase indicates respectively capacitor
State；Investment is lighted, is not worked as excision；Red light is failure；After system electrification, into main menu, enter after delay about 5 seconds automatic
Operating status；It is automatically closed within LCD backlight 180 seconds, activates backlight by any key.
Automatic operating state shares 8 screens, and operation upstream or downstream key is recyclable to show every grid operation data:
As shown in figure 3, the first screen, each phase real-time voltage of display, electric current, zero-sequence current, the road 1-12 capacitor switching state (auxiliary control
Mode only shows this group of switching state).
As shown in figure 4, the second screen, each phase active power of display, reactive power, power factor, the road 13-20 capacitor switching
State (auxiliary control mode only shows this group of switching state).
As shown in figure 5, third screen, showing this group of capacitance current, temperature, (auxiliary control mode is only for each road capacitor switching state
Show this group of switching state).
As shown in fig. 6, the 4th screen, each phase voltage of display, current harmonics total harmonic distortion, mains frequency, the road 29-32 capacitor
Switching state (auxiliary control mode only shows this group of switching state).
As shown in fig. 7, the 5th screen, each 3,5,7,9,11 voltage harmonic aberration rates of phase of display.
As shown in figure 8,13,15,17,19,21 the 6th screen, display voltage harmonic aberration rates；
As shown in figure 9, the 7th screen, each 3,5,7,9,11 primary current percent harmonic distortion of phase of display；
As shown in Figure 10, the 8th screen, 13,15,17,19,21 primary current percent harmonic distortions of display.
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof;To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced;Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (9)
1. a kind of intelligent capacitor, it is characterised in that: the connecting terminal of the capacitor includes UA interface, UB interface, UC interface, electricity
Flow Sampling Interface, network communication interface, indicator light interface and UN interface；
Wherein, the UA interface of multiple capacitors, UB interface, UC interface and UN interface respectively with the Ua interface of controller, Ub interface,
Uc interface is connected with Un interface；
It is connected between two neighboring capacitor by current sample interface, network communication interface, after multiple capacitors are connected, wherein
Any one capacitor becomes master control capacitor, remaining is all auxiliary control capacitor, low-voltage reactive power automatic control system is constituted with this, if a
Other slave failure acts without switching, does not influence remaining work, if hostdown, remaining capacitor using sequential competition,
A new master control capacitor is automatically generated, a new system is formed；The identical capacitor of capacity presses switching cycle principle, capacity
Different capacitors mends principle switching by suitable.
2. a kind of intelligent capacitor according to claim 1, it is characterised in that: the indicator light interface includes HL1 mouthfuls,
HL2 mouthfuls and HL3 mouthfuls；
Wherein, HL1 mouthfuls are A phase capacitor switching indicator light, and HL2 mouthfuls are B phase capacitor switching indicator light, and HL3 mouthfuls are C phase capacitor switching
Indicator light.
3. a kind of intelligent capacitor according to claim 1, it is characterised in that: the distance between two capacitors are not less than
50mm。
4. a kind of intelligent capacitor according to claim 1, it is characterised in that: the network communication interface of first capacitor
It is connected with the current sample interface of second capacitor, the network communication interface of second capacitor and the electricity of third capacitor
It flows Sampling Interface to be connected, the network communication interface of third capacitor is connected with the current sample interface of the 4th capacitor.
5. a kind of intelligent capacitor according to claim 1, it is characterised in that: in the low voltage power capacitor in capacitor
Equipped with temperature sensor, overvoltage of capacitor is able to reflect by temperature sensor, crosses harmonic wave, leakage current is excessive and environment temperature
Cause capacitor internal to generate heat in excessively high situation, realize over-temperature protection, is more than automatic excision capacitor after set temperature.
6. a kind of intelligent capacitor according to claim 1, it is characterised in that: the network communication interface and hind computation
Machine is connected, to carry out electrical power distribution integrated management.
7. a kind of intelligent capacitor according to claim 1, it is characterised in that: be equipped with display on the capacitor, use
To show protection act type.
8. a kind of display control method based on intelligent capacitor as claimed in claim 7, it is characterised in that:
Switching state indicator light: A phase, B phase, C phase indicates respectively capacitance state；Investment is lighted, is not worked as excision；Red light is event
Barrier；After system electrification, into main menu, enter automatic operating state after delay about 5 seconds；It is automatically closed within LCD backlight 180 seconds, presses
Any key activates backlight.
9. a kind of display control method of intelligent capacitor according to claim 8, it is characterised in that:
Automatic operating state shares 8 screens, and operation upstream or downstream key is recyclable to show every grid operation data；
First screen, each phase real-time voltage of display, electric current, zero-sequence current, the road 1-12 capacitor switching state；
Second screen, each phase active power of display, reactive power, power factor, the road 13-20 capacitor switching state；
Third screen shows this group of capacitance current, temperature, each road capacitor switching state；
4th screen, each phase voltage of display, current harmonics total harmonic distortion, mains frequency, the road 29-32 capacitor switching state；
5th screen, each 3,5,7,9,11 voltage harmonic aberration rates of phase of display；
13,15,17,19,21 6th screen, display voltage harmonic aberration rates；
7th screen, each 3,5,7,9,11 primary current percent harmonic distortion of phase of display；
8th screen, 13,15,17,19,21 primary current percent harmonic distortions of display.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910867975.7A CN110460067A (en) | 2019-09-15 | 2019-09-15 | A kind of intelligent capacitor and its display control method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910867975.7A CN110460067A (en) | 2019-09-15 | 2019-09-15 | A kind of intelligent capacitor and its display control method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140371929A1 (en) * | 2013-06-17 | 2014-12-18 | Schweitzer Engineering Laboratories, Inc. | Source Impedance Estimation |
| CN204538706U (en) * | 2015-04-09 | 2015-08-05 | 河北工业大学 | Low-voltage intelligent synchro switch |
| CN204597492U (en) * | 2015-05-26 | 2015-08-26 | 许昌许继低压电器有限公司 | A kind of reactive compensation system |
| CN205385291U (en) * | 2016-03-07 | 2016-07-13 | 天津市聚鑫荣电气设备制造有限公司 | Reactive compensation controller of control blend switch |
| CN108336745A (en) * | 2018-01-24 | 2018-07-27 | 广州峰控电力科技有限公司 | A kind of low-voltage reactive compensator based on Communication Control |
-
2019
- 2019-09-15 CN CN201910867975.7A patent/CN110460067A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140371929A1 (en) * | 2013-06-17 | 2014-12-18 | Schweitzer Engineering Laboratories, Inc. | Source Impedance Estimation |
| CN204538706U (en) * | 2015-04-09 | 2015-08-05 | 河北工业大学 | Low-voltage intelligent synchro switch |
| CN204597492U (en) * | 2015-05-26 | 2015-08-26 | 许昌许继低压电器有限公司 | A kind of reactive compensation system |
| CN205385291U (en) * | 2016-03-07 | 2016-07-13 | 天津市聚鑫荣电气设备制造有限公司 | Reactive compensation controller of control blend switch |
| CN108336745A (en) * | 2018-01-24 | 2018-07-27 | 广州峰控电力科技有限公司 | A kind of low-voltage reactive compensator based on Communication Control |
Non-Patent Citations (1)
| Title |
|---|
| 孙澄宇: "基于PHM 技术的智能开关柜监测及诊断***的平台设计", 《电测与仪表》 * |
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Application publication date: 20191115 |