CN206685906U - Intelligent power capacitor - Google Patents
Intelligent power capacitor Download PDFInfo
- Publication number
- CN206685906U CN206685906U CN201720479816.6U CN201720479816U CN206685906U CN 206685906 U CN206685906 U CN 206685906U CN 201720479816 U CN201720479816 U CN 201720479816U CN 206685906 U CN206685906 U CN 206685906U
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- Prior art keywords
- unit
- signal
- intelligent
- power capacitor
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- 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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- Control Of Electrical Variables (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides intelligent power capacitor, including zero passage sampling unit, switching control unit, operating passing zero unit, power capacitor, display unit, push-button unit, intelligent network element, signal of communication input channel, signal of communication output channel, current input signal, temperature protection unit, current protection unit, voltage input signal, rectification filtering unit, transformer, 220V exchanges input and intelligent control unit, the utility model is designed reasonably, it is easy to use, superior performance, it is easy to maintenance, it is simple to operate, small volume, service life is grown, it is low in energy consumption, it can be suitably used for a variety of occasions for needing reactive-load compensation, very high economic benefit can be brought, and can reduces the input of manpower and materials.
Description
Technical field
It the utility model is related to capacitor area, and in particular to intelligent power capacitor.
Background technology
In recent years, with the fast development of Power Electronic Technique, computer technology, intelligent electric appliance has obtained rapid hair
Exhibition.Reactive-load compensation product is also towards intellectuality, modularization, web development.Intelligent power capacitor exactly develops on this basis
The reactive-load compensation product of new generation to get up.Present capacitor requirement and machine in use, host computer control slave, and net can be controlled
The operating passing zero of all capacitors, quick-switching in network, impact of shoving is reduced, this is badly in need of a kind of new intelligent power capacitor.
Utility model content
The purpose of this utility model is to solve above-mentioned deficiency, there is provided intelligent power capacitor.
The purpose of this utility model is achieved through the following technical solutions：
Intelligent power capacitor, including zero passage sampling unit, switching control unit, operating passing zero unit, power capacitor,
Display unit, push-button unit, intelligent network element, signal of communication input channel, signal of communication output channel, electric current input letter
Number, temperature protection unit, current protection unit, voltage input signal, rectification filtering unit, transformer, 220V exchange input and
Intelligent control unit, zero passage sampling unit, switching control unit, operating passing zero unit, power capacitor, display unit, button
Unit, intelligent network element, current input signal, temperature protection unit, current protection unit, voltage input signal and rectification filter
Ripple unit connects intelligent control unit respectively, and signal of communication input channel and signal of communication output channel connect intelligent network respectively
Unit, 220V exchange inputs enter transformer and carry out transformation, and the voltage by transformer transformation respectively enters voltage input signal
And rectification filtering unit.
Temperature protection unit connects temperature sensor, and temperature protection unit collects the temperature letter that temperature sensor is gathered
Number.
Current protection unit connects current transformer, the electric current letter that current protection unit collected current transformer is gathered
Number.
Intelligent control unit uses STM32F103 ARM chips.
The utility model has following beneficial effect：
The utility model is designed reasonably, it is easy to use, superior performance, easy to maintenance, simple to operate, small volume, use the longevity
Life is long, low in energy consumption, can be suitably used for a variety of occasions for needing reactive-load compensation, can bring very high economic benefit, and and can reduces people
The input of power material resources.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As shown in figure 1, intelligent power capacitor, including zero passage sampling unit 1, switching control unit 2, operating passing zero unit
3rd, power capacitor 4, display unit 5, push-button unit 6, intelligent network element 7, signal of communication input channel 8, signal of communication are defeated
Go out passage 9, current input signal 10, temperature protection unit 11, current protection unit 12, voltage input signal 13, rectifying and wave-filtering
Unit 16, transformer 17,220V exchanges input 18 and intelligent control unit 19, zero passage sampling unit 1, switching control unit 2, mistake
Zero switching unit 3, power capacitor 4, display unit 5, push-button unit 6, intelligent network element 7, current input signal 10, temperature
Protection location 11, current protection unit 12, voltage input signal 13 and rectification filtering unit 16 connect intelligent control unit respectively
19, signal of communication input channel 8 and signal of communication output channel 9 connect intelligent network element 7 respectively, and 220V exchanges input 18 is entered
Enter transformer 17 and carry out transformation, the voltage by the transformation of transformer 17 respectively enters voltage input signal 13 and rectification filtering unit
16。
Temperature protection unit 11 connects temperature sensor 14, and temperature protection unit collects the temperature that temperature sensor is gathered
Signal.
Current protection unit 12 connects current transformer 15, the electric current that current protection unit collected current transformer is gathered
Signal.
Intelligent control unit uses STM32F103 ARM chips.
Intelligent control unit calculates the reactive power and power of power network in real time by sampling the voltage and current signal of power network
Factor.By controlling operating passing zero switch to realize input or the excision of power capacitor, to change the reactive power of power network, realize
Reactive-load compensation to power network.
Intelligent control unit is used as core processor using STM32F103, is internally integrated ADC and 12 of 3 12 and leads to
The DMA in road.Voltage and current by voltage transformer, current transformer conversion after, be input to ADC ports, sampled data is led to
DMA transfer is crossed into STM32F103.By digital filtering and after calculating, obtain the virtual value of voltage and current, active power,
The parameters such as reactive power, apparent energy, power factor, frequency, phase, and these parameters are stored.Intelligent control unit
Man-machine interaction is carried out by button and LCD display, sets address code.Pass through intelligent network and other intelligent power capacitors
It is attached and data exchange, completes the differentiation of slave.According to set control strategy, the change of reactive power, control
Operating passing zero switchs.
Operating passing zero switchs：Operating passing zero switch can realize operating passing zero, i.e. voltage zero-cross input, current over-zero is cut
Remove.Ensure no-flashy-flow impact during power capacitor switching, without switching overvoltage, without arc reignition.Zero passage detection unit is examined
Zero cross signal, the action of switching control unit control operating passing zero switch are surveyed, operating passing zero switch uses magnetic latching relay.
Put into step：(1) intelligent control unit detects current voltage zero-acrross ing moment by voltage zero-cross sampling unit, warp
Certain delay t1 is crossed, intelligent control unit sends input instruction and gives switching control unit；(2) switching control unit is according to control
Order-driven magnetic latching relay closes；(3) intelligent control unit continue through voltage zero-cross sampling unit detection magnetic keep after
The output point of electrical equipment, judge the deviation delta t 1 between this moment and theoretical zero-acrross ing moment, calculating input next time by adjuster prolongs
When t1 '.
Excision step：(1) intelligent control unit detects current flow zero-acrross ing moment by current over-zero sampling unit, warp
Certain delay t2 is crossed, intelligent control unit sends excision instruction and gives switching control unit；(2) switching control unit is according to control
Order-driven magnetic latching relay disconnects；(3) intelligent control unit continue through voltage zero-cross sampling unit detection magnetic keep after
The output point of electrical equipment, judge the deviation delta t 2 between this moment and theoretical zero-acrross ing moment, calculating excision next time by adjuster prolongs
When t2 '.
Intelligent network element：Every intelligent power capacitor all has intelligent control unit and intelligent network element, optional
Select without using master controller.The compensation system of intelligent power capacitor composition changes controls all electric capacity using a controller
The situation of device switching, therefore also whole system will not be caused not work due to the failure of controller.When more intelligent electric powers
Capacitor bank into self compensating system networking when (RJ-45 interfaces are used between intelligent power capacitor), can automatically generate
One network, the minimum intelligent power capacitor of address code automatically become main frame, and remaining all automatically becomes slave, form intelligence electricity
Power capacitor auto-reactive compensation network.If wherein a certain slave breaks down, system is just automatically exited from, does not interfere with it
His intelligent power capacitor；What it is if there is failure is main frame, then address code is minimum in the slave not broken down one is certainly
It is dynamic to turn into main frame.Power capacitor capacity both can be with identical in network, can also be different.If the capacity of power capacitor is not
Together, then switching is carried out as needed；If the capacity of capacitor is identical, the principle first thrown and first cut is used.Host computer and intelligence
Using RS-485 communications (RJ-45 interfaces) between power capacitor, reactive power compensation integrated management can be carried out.In a word, intelligent network list
Member can greatly improve the accurate switching of operational reliability and power capacitor, improve compensation efficiency.
Claims (4)
1. intelligent power capacitor, including it is zero passage sampling unit, switching control unit, operating passing zero unit, power capacitor, aobvious
Show unit, push-button unit, intelligent network element, signal of communication input channel, signal of communication output channel, current input signal,
Temperature protection unit, current protection unit, voltage input signal, rectification filtering unit, transformer, 220V exchanges input and intelligence
Control unit, it is characterised in that：Zero passage sampling unit, switching control unit, operating passing zero unit, power capacitor, display are single
Member, push-button unit, intelligent network element, current input signal, temperature protection unit, current protection unit, voltage input signal
Intelligent control unit is connected respectively with rectification filtering unit, and signal of communication input channel and signal of communication output channel connect respectively
Intelligent network element, 220V exchange inputs enter transformer and carry out transformation, and the voltage by transformer transformation respectively enters voltage
Input signal and rectification filtering unit.
2. intelligent power capacitor according to claim 1, it is characterised in that：Described temperature protection unit connection temperature
Sensor, temperature protection unit collect the temperature signal that temperature sensor is gathered.
3. intelligent power capacitor according to claim 1, it is characterised in that：Described current protection unit connection electric current
Transformer, the current signal that current protection unit collected current transformer is gathered.
4. intelligent power capacitor according to claim 1, it is characterised in that：Described intelligent control unit uses
STM32F103 ARM chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720479816.6U CN206685906U (en) | 2017-05-03 | 2017-05-03 | Intelligent power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720479816.6U CN206685906U (en) | 2017-05-03 | 2017-05-03 | Intelligent power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206685906U true CN206685906U (en) | 2017-11-28 |
Family
ID=60406984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720479816.6U Expired - Fee Related CN206685906U (en) | 2017-05-03 | 2017-05-03 | Intelligent power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206685906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109213054A (en) * | 2018-11-19 | 2019-01-15 | 国网江西省电力有限公司培训中心 | A kind of capacitor intelligence control system and its control method |
-
2017
- 2017-05-03 CN CN201720479816.6U patent/CN206685906U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109213054A (en) * | 2018-11-19 | 2019-01-15 | 国网江西省电力有限公司培训中心 | A kind of capacitor intelligence control system and its control method |
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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 |