CN107769224A - A kind of Low-voltage Line Loss intelligent compensation terminal - Google Patents
A kind of Low-voltage Line Loss intelligent compensation terminal Download PDFInfo
- Publication number
- CN107769224A CN107769224A CN201711217663.9A CN201711217663A CN107769224A CN 107769224 A CN107769224 A CN 107769224A CN 201711217663 A CN201711217663 A CN 201711217663A CN 107769224 A CN107769224 A CN 107769224A
- Authority
- CN
- China
- Prior art keywords
- low
- terminal
- line loss
- voltage line
- intelligent compensation
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 69
- 239000006185 dispersion Substances 0.000 claims abstract description 6
- 238000005070 sampling Methods 0.000 claims description 39
- 238000004891 communication Methods 0.000 claims description 16
- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 238000013461 design Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000004088 simulation Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000010354 integration Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 11
- 230000005611 electricity Effects 0.000 description 9
- 239000000758 substrate Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000013500 data storage Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005314 correlation function Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
- 230000037430 deletion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation 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
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of Low-voltage Line Loss intelligent compensation terminal, and it includes shell body and terminal control system, and terminal control system includes control unit（3）, metering units（5）, capacitor bank（4）, main control unit（1）And display unit（2）, the Low-voltage Line Loss intelligent compensation terminal that is made up of shell body and terminal control system is directly mounted in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.The Low-voltage Line Loss intelligent compensation terminal of the present invention, the compensation of user side Low-voltage Line Loss can be achieved, compared with conventional low voltage reactive power compensator, volume is smaller, and integration degree is higher；It is directly mounted in the batch meter or cable branch box of load-side, the loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively suppression and harmonic carcellation；Meanwhile plant maintenance is convenient, fault rate is relatively low；More importantly compared with present compensation technique, this terminal can realize the adjustment of low current operating passing zero and reactive compensation capacity.
Description
Technical field
The present invention relates to reactive power compensation technology, particularly power factor of electric network be relatively low, reactive power line loss is bigger than normal
A kind of single-phase inductive load electrical domain, and in particular to Low-voltage Line Loss intelligent compensation terminal.
Background technology
With quickly propelling for national urbanization process, the substantial amounts of people such as inhabitation building, luxury stores, hotel, office
Rised sheer from level ground with building in city, urban power consumption also rapid growth therewith.It is but more used in these civil buildings fields
For single-phase inductive load, cause low voltage electric network power factor seriously relatively low, reactive power line loss is seriously bigger than normal.This and state
The policy of " energy-saving and emission-reduction, green " before family belongings is incompatible.It is to improve the quality of power supply, excavate electricity using reactive-load compensation
Net potentiality, reduce the effective method of line loss.
Reactive power problem generally existing electric energy " hair, it is defeated, become, match somebody with somebody, with " in five links, power system stability is transported
Row produces many adverse effects.At present low-voltage power distribution station area reactive power compensator with centralized intelligence capacitor bank compensation based on,
Intelligent capacitor group is connected on distribution transformer low-voltage bus bar side, according to the Reactive Power Control intelligent capacitor group on low-voltage bus bar
Switching, compensating power, improve distribution transforming utilization rate to a certain extent, while play iris action, prevent reactive power
Swarm into upper level power network and cause voltage pulsation, reduce network loss.Centralization compensation is only capable of reducing distribution transformer because conveying idle work(
Loss caused by rate, the line loss of the low pressure basic routing line caused by reactive current can not be reduced, its loss-reducing and electricity-saving benefit by
Limitation, can not solve because of the line end low-voltage caused by reactive current is excessive the problems such as.
With reference to the miniaturization of Power Electronic Technique in recent years, integrated development trend, by idle compensating control and intelligence
Capacitor bank carries out integration and Miniaturization Design, reduces equipment volume, can be directly mounted in the electricity box of load-side,
Realize multigroup dispersion tip compensation function of reactive power inside low voltage electric network.Relative to centralized compensation scheme, can not only drop
Loss of the low distribution transformer caused by conveying reactive power, can also mitigate low pressure basic routing line line loss, reach more excellent section
Electricity, drop damage purpose.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of Low-voltage Line Loss intelligent compensation terminal, the compensation terminal
It is made up of shell body and terminal control system, terminal control system has control unit, metering units, capacitor bank, master control list
Member and display unit.The Low-voltage Line Loss intelligent compensation terminal of the present invention is directly mounted in user side batch meter, forms low tension
Multigroup dispersion compensation of the internal reactive power of net.The Low-voltage Line Loss intelligent compensation terminal of the present invention realizes that user side Low-voltage Line Loss is mended
Repay, compared with conventional low voltage reactive power compensator, volume is smaller, and integration degree is higher.
To achieve these goals, the present invention adopts the following technical scheme that.
A kind of Low-voltage Line Loss intelligent compensation terminal, including shell body and terminal control system, the terminal control system bag
Include control unit, metering units, capacitor bank, main control unit and display unit；The main control unit shows and led to including master control
Believe module；The display unit includes liquid crystal display interface；Described control unit includes magnetic latching relay switch module, terminal
Power transfer module and analog signal sampling module；The metering units include electric current metering sampling module；The capacitor bank
For integrated capacitors；The master control is shown and communication module measures sampling module, terminal supplying power modular converter with electric current respectively
And analog signal sampling module is connected；The electric current metering sampling module samples with terminal supplying power modular converter and analog signal
Module is connected；The integrated capacitors are integral type capacitor.
Preferably, the above-mentioned Low-voltage Line Loss intelligent compensation terminal being made up of shell body and terminal control system, directly
It is installed in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.
In any of the above-described technical scheme preferably, described control unit, metering units, capacitor bank, main control unit
It is integrated in display unit inside Low-voltage Line Loss intelligent compensation terminal enclosure body, each functional unit designs for integrated form；Capacitor
Group is located at Low-voltage Line Loss intelligent compensation terminal shell inner bottom part；Control unit is installed on above capacitor bank；Metering units are direct
Be fixed in shell body, linked together by 1 group of double-row needle with control unit, and by 2 groups of soft arranging wires and one group of row's pin with
Main control unit connects；Display unit is located above main control unit.
It is preferably in any of the above-described technical scheme, the shell body includes covering on front and back side drain pan, on front
Lid is fixed with back side drain pan by hinge.
In any of the above-described technical scheme preferably, control unit, master control list is fixedly mounted in the back side bottom shell
The circuit board and capacitor bank of member.
It is preferably, positive upper drop cloth office liquid crystal display interface, the control button, refers in any of the above-described technical scheme
Show the window of lamp, miniature circuit breaker.
In any of the above-described technical scheme preferably, the left portion's position of opening of shell body is used for liquid crystal display, shows
The circle and square opening for showing unit bottom and right part are respectively control button and indicator lamp position.
In any of the above-described technical scheme preferably, the shell body right middle is miniature circuit breaker position of opening.
In any of the above-described technical scheme preferably, the shell body top side is provided with two RJ45 interfaces, three-phase four
Line interface, foreign current metering terminal interface and fixed ear；Housing right flank is provided with ground terminal.
In any of the above-described technical scheme preferably, following surrounding is provided with oblique strip shaped slotted eye in the middle part of the shell body.
In any of the above-described technical scheme preferably, the terminal control system also includes substrate, plate is adopted in mainboard, friendship,
Interface board and switchboard；Interface board is used to set communication interface；Switchboard is provided with multigroup.
In any of the above-described technical scheme preferably, the master control is shown and communication module includes MCU core apparatus, handed over
Flow signal metering device, storage device, real-time clock device, telecommunication circuit, indicator lamp is shown and control circuit, synchro switch control
Circuit processed, the MCU core apparatus, AC signal metering device, storage device, real-time clock device, indicator lamp show and controlled
Circuit processed, synchronous switch control circuit are used to realize to be shown and correlation function menu to the electric network data before and after capacitor compensation
Setting, switching, data storage, local control function, the telecommunication circuit are used for communication and the sheet for realizing multigroup terminal device
Ground debugging function.
In any of the above-described technical scheme preferably, the analog signal sampling module includes compensation current circuit, complete
Ripple rectification circuit, ADC and zero cross detection circuit, alternating voltage sampling circuit, the analog signal sampling module are used to realize electricity
The excision of condenser current zero passage, voltage measurement sampling, temperature sampling function.
In any of the above-described technical scheme preferably, the terminal supplying power modular converter includes three tap AC-AC transformations
Device, rectifier circuit and DC-DC circuit, for complete indicator lamp show and control circuit, synchronous switch control circuit, lead to
Believe the power supply of circuit and alternating voltage sampling circuit.
In any of the above-described technical scheme preferably, three tap AC-AC transformer bays are mutually isolated, each effectively to shield
Electromagnetic interference between group power supply.
In any of the above-described technical scheme preferably, the electric current metering sampling module connection terminal supplying power modular converter
And analog signal sampling module, foreign current sampling is completed, is calculated for power factor of electric network and reactive-load compensation provides data branch
Support.
In any of the above-described technical scheme preferably, the magnetic latching relay switch module has the maximum switchings of 90A
Electric current, its actuation time under twice of rated operational voltage are less than 6ms.
In any of the above-described technical scheme preferably, the magnetic latching relay switch module includes switch control electricity
Road；ON-OFF control circuit completes the switching action of capacitor, and inside is provided with least 6 groups of switchboards and is laid out with stacked longitudinal direction, hanged
In surface.
In any of the above-described technical scheme preferably, the integrated capacitors include at least 6 group capacitors and with
The component that capacitors count matches.
In any of the above-described technical scheme preferably, the Low-voltage Line Loss intelligent compensation terminal inner integrates 6 groups of electric capacity
Device, 6 group capacitors are arranged to：Per mutually each two groups, 3 grades of compensation capacities are formed, switching is carried out automatically according to load condition, realizes essence
Refinement compensation.
In any of the above-described technical scheme preferably, the Low-voltage Line Loss intelligent compensation terminal is provided with least four control
Button processed, the button perforate of respective numbers is provided with shell body.
In any of the above-described technical scheme preferably, the Low-voltage Line Loss intelligent compensation terminal is provided with least ten and referred to
Show lamp, the indicator lamp perforate of respective numbers is provided with shell body.
In any of the above-described technical scheme preferably, the Low-voltage Line Loss intelligent compensation terminal is provided with least one and dialled
It is dynamic to switch, the toggle switch perforate of respective numbers is provided with shell body.
In any of the above-described technical scheme preferably, 4 diameters are provided with below display interface on the shell body
11mm circular port is button perforate, and display interface right side is upper, middle part perforate is indicator lamp perforate, and display interface lower right side is set
The 11mm*8mm square holes put are toggle switch perforate.
In any of the above-described technical scheme preferably, 4 are provided with above miniature circuit breaker window on the shell body
Diameter 11mm circular port is three-phase and four-line top fixing hole.
It is preferably in any of the above-described technical scheme, shell body top left side top holes is arranged to communication and connect
Mouthful.
In any of the above-described technical scheme preferably, square hole is arranged to external metrology below the shell body top left side
Interface.
In any of the above-described technical scheme preferably, it is three to be provided with 4 holes above the shell body top right side
The line access aperture of phase four.
In any of the above-described technical scheme preferably, it is to connect that the shell body right flank middle part, which is provided with protrusion nut,
Ground terminal.
In any of the above-described technical scheme preferably, the capacitor bank is that 6 groups of integrated forms are rectangular inside three-phase and four-line
Shape structure, capacity 0.33-3kvar, the length difference of the structure for the capacitor bank that 6 groups of low value capacitor customizations form
For 190mm, 120mm and 110mm.
In any of the above-described technical scheme preferably, 6 groups of integrated form rectangle structures inside the three-phase and four-line, its
6 L line terminals, 1 N line terminals, 1 ground terminal and 2 temperature solder joints are integrated with above body.
In any of the above-described technical scheme preferably, the magnetic latching relay switch module includes 6 groups of switchboards, and 6
Group switchboard is perpendicularly fixed at interface board in the form of two rows, and interface board is perpendicularly fixed at substrate.
In any of the above-described technical scheme preferably, the shell body is sheet metal structural.
In any of the above-described technical scheme preferably, the length, width and height overall size of the shell body is 260mm*209mm*
129mm。
In any of the above-described technical scheme preferably, display interface size is 54mm*54mm on the shell body.
It is in any of the above-described technical scheme preferably, micro- on the shell body that disconnected to control window size be 81mm*54mm.
In any of the above-described technical scheme preferably, the shell of the capacitor bank is processed into by sheet metal component, surrounding
It is provided with oblique strip shaped heat radiating slot.
In any of the above-described technical scheme preferably, the terminal control system is additionally provided with temperature protection circuit, is used for
The temperature of capacitor bank is monitored in real time.
Compared with prior art, above-mentioned technical proposal of the invention has the advantages that：
The Low-voltage Line Loss intelligent compensation terminal of the present invention, the compensation of user side Low-voltage Line Loss can be achieved, with conventional low voltage reactive-load compensation
Device is compared, and volume is smaller, and integration degree is higher；It can be directly mounted in the batch meter or cable branch box of load-side,
The loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively suppression and harmonic carcellation；Meanwhile if
Standby easy to maintenance, fault rate is relatively low；More importantly compared with present compensation technique, this terminal can realize low current operating passing zero
And the adjustment of reactive compensation capacity.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the hardware block diagram according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention；
Fig. 2 is the overall structure front view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention；
Fig. 3 is the overall structure left view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention；
Fig. 4 is the overall structure top view according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention；
Fig. 5 is to show according to the integrally-built internal drain pan of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention
It is intended to；
Fig. 6 is to show according to the integrally-built inner head cover of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention
It is intended to；
Fig. 7 is the integrally-built interior layout master according to a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention
View；
Fig. 8 is left according to the integrally-built interior layout of a preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention
View；
Fig. 9 is the live scheme schematic diagram according to another preferred embodiment of the Low-voltage Line Loss intelligent compensation terminal of the present invention.
Reference：
1st, main control unit, 2, display unit, 3, control unit, 4, capacitor bank, 5, metering units.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
In the single-phase perception that reactive power compensation technology, particularly power factor of electric network are relatively low, reactive power line loss is bigger than normal
Load electrical domain, for overcome the deficiencies in the prior art, the embodiments of the invention provide the line loss of a kind of miniaturization, integration
Compensation device：Low-voltage Line Loss intelligent compensation terminal.Low-voltage Line Loss intelligent compensation terminal described in the embodiment of the present invention is directly pacified
In electricity box loaded on low-voltage load side, line end voltage can be improved, reduces reactive power loss, reduces line loss, improves electric energy
Quality.
Embodiment 1
As shown in Figures 1 to 8, the present embodiment provides a kind of Low-voltage Line Loss intelligent compensation terminal, and it includes shell body and terminal control
System processed, terminal control system include control unit 3, metering units 5, capacitor bank 4, main control unit 1 and display unit 2, main
Control unit 1 is shown including master control and communication module, and display unit 2 is liquid crystal display interface, and control unit 3 includes magnetic and keeps relay
Device switch module, terminal supplying power modular converter and analog signal sampling module, metering units 5 include electric current metering sampling module,
Capacitor bank is integrated capacitors.Master control is shown and communication module is changed with electric current metering sampling module, terminal supplying power respectively
Module and analog signal sampling module are connected；Electric current measures sampling module and sampled with terminal supplying power modular converter and analog signal
Module is connected；Integrated capacitors are integral type capacitor.The Low-voltage Line Loss intelligence being made up of shell body and terminal control system
Terminal is compensated, is directly mounted in user side batch meter, forms multigroup dispersion compensation of reactive power inside low voltage electric network.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, shell body include lid and back side drain pan on front, front
Upper lid is fixed with back side drain pan by hinge；Control unit 3, metering units 5, capacitor bank 4, main control unit 1 and display unit 2
It is integrated in inside Low-voltage Line Loss intelligent compensation terminal enclosure body, each functional unit designs for integrated form；Capacitor bank 4 is located at low pressure
Line loss intelligent compensation terminal shell inner bottom part；Control unit 3 is installed on above capacitor bank；Metering units 5 are directly anchored to outer
In housing, linked together by 1 group of double-row needle with control unit, and pass through 2 groups of soft arranging wires and one group of row's pin and main control unit
Connection；Display unit 2 is located above main control unit.Specific layout：Control unit, main control unit is fixedly mounted in back side bottom shell
Circuit board and capacitor bank；Drop cloth office liquid crystal display interface, control button, indicator lamp, the window of miniature circuit breaker on front
Mouthful；The left portion's position of opening of shell body is used for liquid crystal display, circle and the square opening respectively control of display unit bottom and right part
Button and indicator lamp position processed；Shell body right middle is miniature circuit breaker position of opening；Shell body top side is provided with two RJ45
Interface, three-phase and four-line interface, foreign current metering terminal interface and fixed ear；Housing right flank is provided with ground terminal.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, terminal control system are also adopted including substrate, mainboard, friendship
Plate, interface board and switchboard.Interface board is used to set communication interface.Switchboard is provided with multigroup.Switchboard is synchro switch plate.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, master control show and communication module include MCU core apparatus,
AC signal metering device, storage device, real-time clock device, telecommunication circuit, indicator lamp are shown and control circuit, synchro switch
Control circuit, MCU core apparatus, AC signal metering device, storage device, real-time clock device, indicator lamp show and controlled
Circuit, the electric network data before and after capacitor compensation is shown for realization for synchronous switch control circuit and correlation function menu is set
Put, switch, data storage, local control function, telecommunication circuit is used for the communication for realizing multigroup terminal device and local debugging
Function.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, analog signal sampling module include compensation current circuit,
Full-wave rectifying circuit, ADC and zero cross detection circuit, alternating voltage sampling circuit, analog signal sampling module are used to realize electric capacity
The excision of device current over-zero, voltage measurement sampling, temperature sampling function.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, terminal supplying power modular converter become including three tap AC-AC
Depressor, rectifier circuit and DC-DC circuit, for complete indicator lamp is shown and control circuit, synchronous switch control circuit,
The power supply of telecommunication circuit and alternating voltage sampling circuit.Telecommunication circuit is 485 telecommunication circuits.Three tap AC-AC transformer bay phases
Mutually isolation, effectively shield electromagnetic interference between each group power supply.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, electric current metering sampling module connection terminal supplying power modulus of conversion
Block and analog signal sampling module, foreign current sampling is completed, calculated for power factor of electric network and reactive-load compensation provides data
Support.
There is 90A maximums to cut for Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, magnetic latching relay switch module
Electric current is changed, its actuation time under twice of rated operational voltage is less than 6ms.Magnetic latching relay switch module includes switch and controlled
Circuit；ON-OFF control circuit completes the switching action of capacitor, and inside is provided with least 6 groups of switchboards and is laid out with stacked longitudinal direction,
Surface is suspended from, ensure that space availability ratio.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, integrated capacitors include 6 group capacitors and with electricity
The component that number of containers matches.6 group capacitor set-up modes：Per mutually each two groups, 3 grades of compensation capacities are formed, automatically according to negative
Lotus situation carries out switching, realizes the compensation that becomes more meticulous.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, 4 control buttons are provided with, phase is provided with shell body
Answer the button perforate of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, 10 indicator lamps are provided with, phase is provided with shell body
Answer the indicator lamp perforate of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, 1 toggle switch is provided with, phase is provided with shell body
Answer the toggle switch perforate of quantity.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, 4 diameters are provided with below display interface on shell body
11mm circular port is button perforate, and display interface right side is upper, middle part perforate is indicator lamp perforate, and display interface lower right side is set
The 11mm*8mm square holes put are toggle switch perforate.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, 4 are provided with above miniature circuit breaker window on shell body
Individual diameter 11mm circular port is three-phase and four-line top fixing hole.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, it is logical that shell body top left side top holes is arranged to 485
Believe interface, shell body top left side lower section square hole is arranged to external metrology interface, 4 holes are provided with above shell body top right side
As three-phase and four-line access aperture, it is ground terminal that shell body right flank middle part, which is provided with protrusion nut,.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, capacitor bank are 6 groups of integrated form length inside three-phase and four-line
Square structure, capacity 0.33-3kvar, 6 groups of low value capacitors customizations form, length be respectively 190mm, 120mm and
110mm, its body top are integrated with 6 L line terminals, 1 N line terminals, 1 ground terminal and 2 temperature solder joints.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, magnetic latching relay switch module include 6 groups of switchboards,
6 groups of switchboards are perpendicularly fixed at interface board in the form of two rows, and interface board is perpendicularly fixed at substrate.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, shell body are sheet metal structural, following four in the middle part of shell body
Zhou Kaiyou oblique strip shaped slotted eyes, ensure capacitor bank radiating.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, the length, width and height overall size of shell body is 260mm*209mm*
129mm。
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, display interface size is 54mm*54mm on shell body.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, micro- on shell body disconnected to control window size be 81mm*
54mm。
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, the shell of capacitor bank are processed into by sheet metal component, and four
Zhou Kaiyou oblique strip shaped heat radiating slots.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment is additionally provided with temperature protection circuit, for capacitor bank
Temperature is monitored in real time.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, miniature circuit breaker switch, magnetic latching relay and each
Functional module is compact package.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, need to be to capacitor and change in order to realize device miniaturization
Depressor carry out specific customization, while miniature circuit breakers, magnetic latching relay and each functional module assurance function, performance in advance
Lower prioritizing selection compact package, to meet product structure requirement.Internal multigroup synchro switch plate is laid out with stacked longitudinal direction, is suspended from
Surface, hand over the electric current metering plate for adopting plate to use upside down and substrate connection, on the premise of electrical safety is ensured, realize
Inner space maximally utilizes.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, capacitor bank body use inserted design, are installed on
Device bottom, while detachable drain pan is used, facilitate the installation of capacitor bank body to safeguard and change.
Low-voltage Line Loss intelligent compensation terminal described in the present embodiment, main control unit, each function module circuit of control unit
Core control panel be arranged on directly over substrate, longitudinal pitch meets electrical standard, can further compressing terminal device volume.
Low-voltage Line Loss intelligent compensation terminal with said structure, small volume, 3 grades of compensating power automatically adjust, can
It is directly mounted in user side batch meter, forms multigroup scattered compensation scheme of reactive power inside low voltage electric network.The low-voltage line
Damage intelligent compensation terminal is mainly shown by master control and the conversion of communication module, terminal supplying power and analog signal sampling module, galvanometer
Sampling module, magnetic latching relay switch module and integrated capacitors are measured to form, can be by sampling, counting to power network signal
Amount obtains the effective information such as power factor of electric network and reactive power, can be according to actual idle deletion condition, smart allocation electric capacity
Device carries out input compensation, effectively reduces line loss, improves the quality of power supply.Compared with conventional low reactive power compensator, low pressure
Line loss intelligent compensation terminal integrated level is higher, and the smart allocation of small-signal operating passing zero and reactive compensation capacity can be achieved.
Compared with prior art, the Low-voltage Line Loss intelligent compensation terminal that the present embodiment provides, user side low-voltage line can be achieved
Damage compensation, compared with conventional low voltage reactive power compensator, volume is smaller, and integration degree is higher；Load can be directly mounted at
In the batch meter or cable branch box of side, the loss of circuit and transformer can not only be reduced, and power supply quality can be changed, effectively
Ground suppresses and harmonic carcellation.Meanwhile plant maintenance is convenient, fault rate is relatively low.More importantly compared with present compensation technique, this
Terminal can realize the adjustment of low current operating passing zero and reactive compensation capacity.
Embodiment 2
Based on the Low-voltage Line Loss intelligent compensation terminal described in embodiment 1 and Fig. 1 to 8, live scheme implementation is carried out.
Understand that horizontal space distance is 230mm on the left of electricity box according to power consumption metering box technical standard, can be by Low-voltage Line Loss intelligence
Terminal can be compensated and be installed on this.Integrated capacitors body dimension is 190mm*120mm*110mm, and terminal device width design is
209mm, Capacitor horizontal installation, reservation operations surplus.By master switch, guide rail, concentrator in electricity box（Power supply terminal）, total line box
Entirety moves up, guide rail position custom tailored again.Due to taking in-wall mounting, capacitor is isometric and the larger device of weight is fitted
Preferably lean on below terminal and install.The display unit of terminal is being shown in equipment upper left side, control and setting button, miniature circuit breaker etc.
Below unit and right, foreign current measurent wiring terminal, RJ45 communication interfaces and three-phase and four-line interface are in terminal top side
Face.
The Low-voltage Line Loss intelligent compensation terminal of the present embodiment is three-phase separate-supplement form, and capacitor bank body is by 6 pieces of capacity
The capacitor Integration Design of 0.33Kvar-3Kvar scopes forms, per mutually can independent compensation 0.33Kvar-3.33Kvar it is idle
Power.Terminal control system hardware adopts plate, interface board and switchboard including substrate, mainboard, friendship.Wherein, thrown for capacitor bank
The 6 pieces of switchboards cut are vertically fixed on interface board in the form of two rows, and interface board is perpendicularly fixed at base plate bottom position again,
Ensure maximally utilizing for space.Meanwhile forceful electric power and weak electric signal are laid out at left and right sides of interface board respectively.
Low voltage three-phase four-wire transmission line accesses the Low-voltage Line Loss intelligent compensation terminal of the present embodiment, passes through miniature circuit breaker control
The master switch of terminal system processed, miniature circuit breaker outlet side respectively with integral type capacitor bank body N line terminals and switchboard
Middle magnetic latching relay control source pin is connected.Substrate realizes the work(such as system AC-AC decompressions, control circuit power supply, AC sampling
Can, pass through soft arranging wire and upper strata mainboard connection communication；Mainboard is completed to hand over the metering processing for the number of accepting and believing, switchboard switching control, be each
The functions such as the control of kind status indicator lamp, data storage, clock acquisition, LCD liquid crystal displays interface.Friendship adopts plate and completes external electrical fluxion
According to sampling and 485 communication functions.
Because installing space limits, the capacitor bank shell of the present embodiment is using contact and surrounding fluting heat dissipation design side
Formula, not only can be by contacting conduction between capacitor bank and sheet metal shell body, moreover it is possible to is realized using the temperature difference of itself and extraneous air
Circulation cooling, enhance conduction effect caused by inner air and outer air convection current.Meanwhile the terminal inner is provided with temperature protection circuit,
Capacitor bank temperature is monitored in real time, it is ensured that the reliability service of device, sheet metal shell body ensure the good explosion-proof of terminal.
Described above is only that the preferred embodiment of the present invention is described, and is not that the scope of the present invention is limited
It is fixed；It the foregoing is only the embodiment of the present invention, the protection domain being not intended to limit the present invention；Do not departing from
On the premise of design spirit of the present invention, what this area ordinary skill technical staff made to technical scheme any repaiies
Change, equivalent substitution, improvement etc., all should fall into the protection domain of claims of the present invention determination.
Claims (10)
1. a kind of Low-voltage Line Loss intelligent compensation terminal, including shell body and terminal control system, it is characterised in that：The terminal control
System processed includes control unit, metering units, capacitor bank, main control unit and display unit；The main control unit includes master control
Display and communication module；The display unit includes liquid crystal display interface；Described control unit switchs including magnetic latching relay
Module, terminal supplying power modular converter and analog signal sampling module；The metering units include electric current metering sampling module；It is described
Capacitor bank is integrated capacitors；The master control is shown and communication module measures sampling module, terminal supplying power with electric current respectively
Modular converter and analog signal sampling module are connected；The electric current metering sampling module and terminal supplying power modular converter and simulation
Signal sampling module is connected；The integrated capacitors are integral type capacitor.
2. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 1, it is characterised in that：By shell body and terminal control system
The Low-voltage Line Loss intelligent compensation terminal of composition, is directly mounted in user side batch meter, forms reactive power inside low voltage electric network
Multigroup dispersion compensation.
3. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 1, it is characterised in that：Described control unit, metering units,
Capacitor bank, main control unit and display unit are integrated in inside Low-voltage Line Loss intelligent compensation terminal enclosure body, and each functional unit is
Integrated form designs；Capacitor bank is located at Low-voltage Line Loss intelligent compensation terminal shell inner bottom part；Control unit is installed on capacitor bank
Top；Metering units are directly anchored in shell body, are linked together by 1 group of double-row needle with control unit, and soft by 2 groups
Winding displacement and one group of row's pin are connected with main control unit；Display unit is located above main control unit.
4. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 1, it is characterised in that：The shell body includes covering on front
With back side drain pan, cover on front and fixed with back side drain pan by hinge.
5. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The back side bottom shell fixes peace
Fill control unit, the circuit board and capacitor bank of main control unit.
6. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The upper drop cloth office liquid crystal in front
Show interface, control button, indicator lamp, the window of miniature circuit breaker.
7. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The left portion's perforate position of shell body
Put and be used for liquid crystal display, the circle and square opening of display unit bottom and right part are respectively control button and indicator lamp position.
8. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The shell body right middle is miniature
Breaker position of opening.
9. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：The shell body top side is provided with two
Position RJ45 interfaces, three-phase and four-line interface, foreign current metering terminal interface and fixed ear；Housing right flank is provided with earth terminal
Son.
10. Low-voltage Line Loss intelligent compensation terminal as claimed in claim 4, it is characterised in that：Following four in the middle part of the shell body
Zhou Kaiyou oblique strip shaped slotted eyes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217663.9A CN107769224A (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711217663.9A CN107769224A (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769224A true CN107769224A (en) | 2018-03-06 |
Family
ID=61275558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711217663.9A Withdrawn CN107769224A (en) | 2017-11-28 | 2017-11-28 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769224A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200362071Y1 (en) * | 2004-07-01 | 2004-09-16 | 제일설계(주) | Apparatus to Reduce Harmonic Wave and to compensate Reactive Power in Self Managed Electrical Consumers |
| US20080203979A1 (en) * | 2005-09-26 | 2008-08-28 | Ruitian Su | Customer Intelligent Reactive Power Automatic Compensation Energy-Saved Device |
| CN201629502U (en) * | 2009-11-27 | 2010-11-10 | 重庆市电力公司永川供电局 | Reactive compensation comprehensive box for low voltage distribution transformer |
| CN202586346U (en) * | 2012-04-05 | 2012-12-05 | 上海恒尔科技有限公司 | Intelligent harmonic-resistant compensation integration module |
| CN202586358U (en) * | 2012-05-07 | 2012-12-05 | 遵义长征电器设备有限责任公司 | Improved intelligent low-voltage reactive power compensation cabinet |
| CN202737462U (en) * | 2012-06-01 | 2013-02-13 | 湖北西高电气设备有限公司 | Intelligent integrated power capacitor used for filtering compensation device |
| CN205429750U (en) * | 2016-03-25 | 2016-08-03 | 江苏中乂电气有限公司 | Intelligent terminal compensates integrative cabinet |
| CN207559567U (en) * | 2017-11-28 | 2018-06-29 | 南京科沃电力科技有限公司 | A kind of Low-voltage Line Loss intelligent compensation terminal |
-
2017
- 2017-11-28 CN CN201711217663.9A patent/CN107769224A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200362071Y1 (en) * | 2004-07-01 | 2004-09-16 | 제일설계(주) | Apparatus to Reduce Harmonic Wave and to compensate Reactive Power in Self Managed Electrical Consumers |
| US20080203979A1 (en) * | 2005-09-26 | 2008-08-28 | Ruitian Su | Customer Intelligent Reactive Power Automatic Compensation Energy-Saved Device |
| CN201629502U (en) * | 2009-11-27 | 2010-11-10 | 重庆市电力公司永川供电局 | Reactive compensation comprehensive box for low voltage distribution transformer |
| CN202586346U (en) * | 2012-04-05 | 2012-12-05 | 上海恒尔科技有限公司 | Intelligent harmonic-resistant compensation integration module |
| CN202586358U (en) * | 2012-05-07 | 2012-12-05 | 遵义长征电器设备有限责任公司 | Improved intelligent low-voltage reactive power compensation cabinet |
| CN202737462U (en) * | 2012-06-01 | 2013-02-13 | 湖北西高电气设备有限公司 | Intelligent integrated power capacitor used for filtering compensation device |
| CN205429750U (en) * | 2016-03-25 | 2016-08-03 | 江苏中乂电气有限公司 | Intelligent terminal compensates integrative cabinet |
| CN207559567U (en) * | 2017-11-28 | 2018-06-29 | 南京科沃电力科技有限公司 | A kind of Low-voltage Line Loss intelligent compensation terminal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109560560A (en) | A kind of three self-balancing load operating passing zero methods of self-decision type | |
| CN202996137U (en) | Multifunctional comprehensive low voltage power distribution installation training device | |
| CN204497713U (en) | Without bus compact protective relaying device | |
| CN207559567U (en) | A kind of Low-voltage Line Loss intelligent compensation terminal | |
| CN212587889U (en) | Intelligent substation protection measurement and control screen cabinet | |
| CN107769224A (en) | A kind of Low-voltage Line Loss intelligent compensation terminal | |
| CN201601496U (en) | Low-voltage reactive power compensation device | |
| CN203466477U (en) | Intelligent box-type transformer substation | |
| CN215870327U (en) | Novel hanging type switch cabinet structure | |
| CN207098408U (en) | Transformer station and its cabinet of power distribution cabinet and the power distribution cabinet | |
| CN103346500A (en) | Intelligent box-type transformer substation | |
| CN208890157U (en) | A kind of outdoor transformer comprehensive distribution box | |
| CN211669258U (en) | Anti-leakage electric energy metering box | |
| CN208386159U (en) | A kind of mixed compensation device | |
| CN104617540B (en) | The small-sized protective relaying device used suitable for outdoor installation | |
| CN208369026U (en) | Comprehensive distribution box | |
| CN208904469U (en) | A kind of prepaying batch meter of bandwidth load | |
| CN209709457U (en) | Photoelectric integral case | |
| CN205882431U (en) | Put cabinet in intelligent high pressure | |
| CN204243587U (en) | Novel drawer formula power distribution cabinet | |
| CN205159830U (en) | Novel JP cabinet | |
| CN216750846U (en) | Drawer type city safety supervision equipment synthesizes block terminal | |
| CN208922895U (en) | A kind of wall-penetrating type current transformer | |
| CN113328518B (en) | Multifunctional electric power monitoring terminal box and use method thereof | |
| CN204517500U (en) | For the low-voltage distribution system of factory's power monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180306 |
|
| WW01 | Invention patent application withdrawn after publication |