CN206685905U - A kind of intelligent capacitor - Google Patents
A kind of intelligent capacitor Download PDFInfo
- Publication number
- CN206685905U CN206685905U CN201720479675.8U CN201720479675U CN206685905U CN 206685905 U CN206685905 U CN 206685905U CN 201720479675 U CN201720479675 U CN 201720479675U CN 206685905 U CN206685905 U CN 206685905U
- Authority
- CN
- China
- Prior art keywords
- phase
- terminal row
- control unit
- intelligent
- converting units
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The utility model provides a kind of intelligent capacitor, including three-phase voltage current sampling unit, A/D converting units, intelligent control unit, man-machine interface, three-phase compensator, sampling current, output indicator, phase splitting compensation device, left terminal is arranged and right terminal row, three-phase voltage current sampling unit connects A/D converting units, A/D converting units connect intelligent control unit, the utility model is designed reasonably, it is easy to use, using zero crossing switching technology, using the combination switch control switching mode of no-flashy-flow idle on hardware, improve electric capacity service life, and being capable of quick and precisely switched capacitor, when more capacitors are used in combination, reliability is high, cost is relatively low, realize the idle quick compensation of Large Copacity to low-voltage network.
Description
Technical field
It the utility model is related to capacitor area, and in particular to a kind of intelligent capacitor.
Background technology
In today of national economy high speed development, electric power has become the indispensable part of people's lives, and
Requirement of the user to power supply reliability also more and more higher, and reactive power is an important factor for influenceing power system stability；Now
Distribution web area is wide, user is various, load is complicated, and distribution network var compensation deficiency, reactive power compensator fault rate is high, power consumption
Height, switching shove greatly, not easy care, and at present, most countries carry out idle benefit using static passive compensation device TSC to power network
Repay, but TSC types reactive power compensator controls more capacitors by a controller, once controller breaks down, whole dress
Putting to be not normally functioning, the failure for causing capacitor to burn etc..
Utility model content
The purpose of this utility model is to solve above-mentioned deficiency, there is provided a kind of intelligent capacitor.
The purpose of this utility model is achieved through the following technical solutions：
A kind of intelligent capacitor, including it is three-phase voltage current sampling unit, A/D converting units, intelligent control unit, man-machine
Interface, three-phase compensator, sampling current, output indicator, phase splitting compensation device, left terminal row and right terminal row, three-phase electricity piezoelectricity
Sampling unit connection A/D converting units, A/D converting units connection intelligent control unit are flowed, intelligent control unit connects people respectively
Machine interface and three-phase compensator, three sections of three-phase compensator connect three-phase wire, the most upper two terminals connection of left terminal row respectively
Right terminal is arranged, and left terminal ranked third to the 6th terminal and connect sampling current, and left terminal, which ranked seventh to the connection output of the tenth terminal, to be referred to
Show lamp, left terminal row bottom son ground connection, phase splitting compensation device connection right terminal row, three ends of phase splitting compensation device connect three-phase respectively
Electric wire.
Man-machine interface connects keyboard and display respectively.
Intelligent control unit uses DSPIC30F6014A chips.
Left terminal row connects right terminal by RS485 buses and arranged.
The utility model has following beneficial effect：
The utility model is designed reasonably, it is easy to use, it is idle using no-flashy-flow on hardware using zero crossing switching technology
The combination switch control switching mode of consumption, improves electric capacity service life, and can quick and precisely switched capacitor, more electric capacity
When device is used in combination, reliability is high, and cost is relatively low, realizes the idle quick compensation of Large Copacity to low-voltage network.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model；
Fig. 2 is composite switch circuit of the present utility model.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of intelligent capacitor, including three-phase voltage current sampling unit 1, A/D converting units 2, intelligence
Control unit 3, man-machine interface 4, three-phase compensator 7, sampling current 8, output indicator 9, phase splitting compensation device 10, left terminal row 12
With right terminal row 13, three-phase voltage current sampling unit 1 connects A/D converting units 2, and A/D converting units 2 connect intelligent control single
Member 3, intelligent control unit 3 connects man-machine interface 4 and three-phase compensator 7 respectively, and three sections of three-phase compensator 7 connect three-phase respectively
Electric wire, the most upper two terminals connection right terminal row 13 of left terminal row 12, left terminal ranked third to the 6th terminal and connect sampling current
8, left terminal ranked seventh to the tenth terminal and connect output indicator 9, left terminal row bottom son ground connection, and phase splitting compensation device 10 connects
Right terminal row 13, three ends of phase splitting compensation device 10 connect three-phase wire respectively.
Man-machine interface 4 connects keyboard 5 and display 6 respectively.
Intelligent control unit 3 uses DSPIC30F6014A chips.
Left terminal row 12 connects right terminal row 13 by RS485 buses 11.
Intelligent controller uses general-purpose digital signal controller DSPIC30F6014A, inside contains 12 A/D converters, and three
Phase voltage, current signal are input to DSPIC30F6014A chips by voltage transformer, current transformer, then by amplifier,
Three-phase voltage, current effective value is calculated with Fast Fourier Transform (FFT), idle, the parameter such as active and power factor.CPU
According to these parameters, intelligent operation/cutting judgement is carried out by default control strategy, control combination switch realizes the input of capacitor bank
Or excision.
As shown in Fig. 2 combination switch is the key component of Intelligent low-voltage power capacitor, kept by bidirectional thyristor, magnetic
Relay is formed.When intelligent controller sends input instruction, and to detect IGCT both end voltage be zero, controller is to crystalline substance
Brake tube sends trigger pulse, and capacitor comes into operation.It is delayed after a period of time, switchs and conducting state is maintained by magnetic latching relay
Until controller sends excision instruction, magnetic latching relay is first closed, detects by the electric current of IGCT IGCT when being zero
Close, capacitor excision.Switch is transferred to normal operating condition after input moment bidirectional thyristor ON operation, completion switching
When, switch and conducting state is maintained by magnetic latching relay.Capacitor switching process no-flashy-flow was so both can guarantee that, and can avoids crystalline substance
Brake tube damages because of long-time conducting.
Man-machine interface circuit includes keyboard circuit and liquid crystal display circuit.Keyboard is available for technical staff and user to control
Device carries out various operations and control, such as the parameter of controller is configured and sent various control commands.The design shares 4
Button, respectively " setting ", " upward ", " downward " and " confirmation " key.Coordinate liquid crystal display circuit, controller can be set
Parameter and capacitor running situation is inquired about.
Claims (4)
1. a kind of intelligent capacitor, including three-phase voltage current sampling unit, A/D converting units, intelligent control unit, human-machine interface
Mouth, three-phase compensator, sampling current, output indicator, phase splitting compensation device, left terminal row and right terminal row, it is characterised in that：Three
Phase voltage current sampling unit connects A/D converting units, A/D converting units connection intelligent control unit, intelligent control unit point
Not Lian Jie man-machine interface and three-phase compensator, three sections of three-phase compensator connect three-phase wire, most upper two of left terminal row respectively
Terminal connection right terminal row, left terminal be ranked third to the 6th terminal and connect sampling current, and left terminal, which ranked seventh to the tenth terminal, to be connected
Connect output indicator, left terminal row bottom son ground connection, phase splitting compensation device connection right terminal row, the three ends difference of phase splitting compensation device
Connect three-phase wire.
A kind of 2. intelligent capacitor according to claim 1, it is characterised in that：Described man-machine interface connects keyboard respectively
And display.
A kind of 3. intelligent capacitor according to claim 1, it is characterised in that：Described intelligent control unit uses
DSPIC30F6014A chips.
A kind of 4. intelligent capacitor according to claim 1, it is characterised in that：Described left terminal row is total by RS485
Line connection right terminal row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720479675.8U CN206685905U (en) | 2017-05-03 | 2017-05-03 | A kind of intelligent capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720479675.8U CN206685905U (en) | 2017-05-03 | 2017-05-03 | A kind of intelligent capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206685905U true CN206685905U (en) | 2017-11-28 |
Family
ID=60407318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720479675.8U Expired - Fee Related CN206685905U (en) | 2017-05-03 | 2017-05-03 | A kind of intelligent capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206685905U (en) |
-
2017
- 2017-05-03 CN CN201720479675.8U patent/CN206685905U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20210503 |