CN201066789Y - Capacitance combined micro PC for passive automatic compensation control - Google Patents
Capacitance combined micro PC for passive automatic compensation control Download PDFInfo
- Publication number
- CN201066789Y CN201066789Y CNU2007200134139U CN200720013413U CN201066789Y CN 201066789 Y CN201066789 Y CN 201066789Y CN U2007200134139 U CNU2007200134139 U CN U2007200134139U CN 200720013413 U CN200720013413 U CN 200720013413U CN 201066789 Y CN201066789 Y CN 201066789Y
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- China
- Prior art keywords
- resistance
- comparator
- power supply
- relay
- driver
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- Expired - Fee Related
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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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Abstract
A capacitance combination miniature machine used for controlling a reactive power automatic compensation comprises a rectification bridge, a comparator, a crystal oscillator, a central processor, a driver, a relay and an electrical source. One end of the rectification bridge is connected with a signal source, the other end is connected with a positive input end of the comparator through a resistance-capacitance coupling circuit; a negative input end of the comparator is connected with a potentiometer; the output ends of the comparator are respectively connected with the input ends of the central processor and are respectively connected with a plus 5V electrical source through a resistance; the output ends of the central processor are respectively connected with the input ends of the driver; the output ends of the driver are respectively connected with the relay, the resistance and a positive end of the diode; the resistance is connected with a negative end of a luminescent tube; the positive end of the luminescent tube, the negative end of the diode and the other end of the relay are connected with the plus 5V electrical source. The utility model has the advantages of simple structure, reliable work, convenient debugging, low production cost etc., and when light load, medium load, full load or overload occurs, the power factor operates stably; the circulating switching circuit quantity is enlarged two to three times; the power factor is ranged from 0.9 to 0.99; the dynamic response is less than 0.02 second; the line loss is reduced by 10 percent to 50 percent.
Description
Technical field
The utility model belongs to Microcomputer Technology, particularly a kind of electric capacity combination microcomputer that is used for reactive power automatic compensation control.
Background technology
Current low-voltage reactive power power automatic compensating controller, what extensively adopt is the switching cycle mode, and the way of control switching capacitance is commonly about 10 the tunnel, does not have substantially more than 20 the tunnel, and used capacitor is mostly selected the same capacity of same kind for use, and its number is identical with the switching way.But, when user transformers underloading, in carry, when working under the unequally loaded situation such as fully loaded or overload, needed reactive capability also is different.Therefore, for the transformer of larger capacity, owing to have only 10 road switchings, so electric capacity selected capacity in every road is just bigger, when transformer during in underloading or the critical value at idle two road electric capacity, power factor is stable operation in the best condition just.Because every road capacitance is bigger, throwing last one the tunnel just may be leading, downcuts one the tunnel and just may lag behind, and forms throw in-of oscillation easily.If electric capacity selected capacity in every road is less, when fully loaded or overload, even 10 road electric capacity all put into operation, power factor does not reach optimum state yet.
Therefore, the utility model is in order to solve the technical problem of above-mentioned existence, provide a kind of and can make power factor accuracy height, transformer underloading, in carry, during fully loaded work, the electric capacity combination microcomputer that is used for reactive power automatic compensation control that power factor can both stable operation under best shape state.
The utility model content
The utility model is to exist the switching way few and for the technical problems such as power factor fluctuation of service of different operating load at existing reactive power self-compensating controlling device, a kind of have simple in structure, reliable operation, debugging is convenient, production cost the is low electric capacity combination microcomputer that is used for reactive power automatic compensation control are provided; And and underloading, in carry, during fully loaded or overload, power factor is stable, the way of switching cycle is enlarged 2～3 times, power factor reaches 0.9～0.99, dynamic response was less than 0.02 second, and line loss descends 10～50%.
The utility model comprises rectifier bridge, potentiometer, comparator, crystal oscillator, central processing unit, driver, luminous tube, relay and power supply, one end of rectifier bridge closes circuit by the capacitance-resistance corner and is connected with the input anode of comparator, the negative input end of comparator is connected with potentiometer, one termination of potentiometer+5V power supply, other end ground connection, the output of comparator is connected with the input of central processing unit respectively, and be connected with+5V power supply by resistance respectively, one termination of comparator+5V power supply, other end ground connection, the two ends of central processing unit are passed through capacitor C respectively with the two ends Lian Jie ， And of crystal oscillator respectively
3, C
4Ground connection, one termination of central processing unit+5V power supply, other end ground connection, the output of central processing unit is connected with the anode of relay, resistance and diode respectively by output end of driver, resistance is connected with the negative terminal of luminous tube, another termination+5V power supply of the anode of luminous tube and the negative terminal of diode and relay.
The output of described+5V power supply is connected to filter capacitor, the negativing ending grounding of filter capacitor.
The resistance R that circuit is closed in described capacitance-resistance corner
1With R
2Parallel connection is connected resistance R with rectifier bridge
1With capacitor C
2Negative terminal in parallel connect And ground connection, resistance R with the rectification bridging
2With capacitor C
2Anode in parallel be connected with the input anode of comparator.Power supply termination+5V the power supply of described driver, other end ground connection.
The utlity model has advantage And such as simple in structure, reliable operation, debugging is convenient, production cost is low and underloading, in carry, during fully loaded or overload, power factor is stable, the way of switching cycle is enlarged 2～3 times, power factor reaches 0.9～0.99, dynamic response was less than 0.02 second, and line loss descends 10～50%.
Description of drawings
Fig. 1 is an electrical schematic diagram of the present utility model;
Among the figure: 1 rectifier bridge, 2 potentiometers, 3 comparators, 4 crystal oscillators, 5 central processing units, 6 drivers, 7 luminous tubes, 8 relays, 9 power supplys.
Embodiment
In conjunction with example the technical solution of the utility model is described further.
As shown in Figure 1, be used for the electric capacity combination microcomputer of reactive power automatic compensation control, comprise rectifier bridge 1, potentiometer 2, comparator 3, crystal oscillator 4, central processing unit 5, driver 6, luminous tube 7, relay 8 and power supply 9.The contact 3,4 of rectifier bridge 1 is connected resistance R with signal source
1With R
2Parallel connection is connected resistance R with the contact 1 of rectifier bridge 1
1With capacitor C
2Negative terminal contact 2 Lian Jie ， And ground connection with rectifier bridge 1 in parallel.Resistance R
2With capacitor C
2The anode parallel connection be connected with the positive input terminal of 4 comparators 3 respectively.Potentiometer 2 (R
3, R
4, R
5, R
6) respectively the negative input end with comparator 3 be connected.The output of 4 comparators 3 is connected with the input of central processing unit 5 (CPU) respectively, and passes through resistance R respectively
8, R
9, R
10, R
11Be connected with+5V power supply.Power supply termination+5V the power supply of 4 comparators 3, other end ground connection.Capacitor C is passed through at the two ends of crystal oscillator 4 respectively
3, C
4Ground connection, the two ends of crystal oscillator 4 also are connected with two tip nodes 16,15 of central processing unit 5 (CPU).The power supply contact 14 of central processing unit 5 (CPU) connects+the 5V power supply, other end contact 5 ground connection.The output 7,8,9 of central processing unit 5 (CPU) is connected with the input of driver 6 respectively, and the power end contact 9 of driver 6 connects+the 5V power supply, the other end 8 ground connection.The output 14,15,16 of driver 6 is connected with 3 relays 8 respectively.Luminous tube 7 (LED
3) anode, diode D
3Negative terminal and the one termination+5V power supply of relay 8, luminous tube 7 (LED
3) negative terminal pass through resistance R
15With diode D
3Anode be connected with the other end of relay 8 with the output 14 Lian Jie ， And of driver 6.Luminous tube 7 (LED
2) anode, diode D
2Negative terminal and the one termination+5V power supply of relay 8, luminous tube 7 (LED
2) negative terminal pass through resistance R
14With diode D
2Anode be connected with the other end of relay 8 with the output 15 Lian Jie ， And of driver 6.Luminous tube 7 (LED
1) anode, diode D
1Negative terminal and the one termination+5V power supply of relay 8, luminous tube 7 (LED
1) negative terminal pass through resistance R
13With diode D
1Anode be connected with the other end of relay 8 with the output 16 Lian Jie ， And of driver 6.The output 2 of power supply 9 is connected filter capacitor C through capacitor filtering with+5V power supply
5And capacitor C
6Parallel connection, its positive termination+5V power supply, negativing ending grounding.
The course of work of the present utility model is: when the electric current by rectifier bridge 1 was 0.3～1.9A, comparator 3 made the J of relay 8 by central processing unit 5 (CPU) Control Driver 6
1Adhesive, the little capacitance group of control reactive power automatic compensation circuit puts into operation; When the electric current by rectifier bridge 1 was 2.0～3.5A, comparator 3 made the J of relay 8 by central processing unit 5 (CPU) Control Driver 6
2Adhesive, the big capacitance group of control reactive power automatic compensation circuit puts into operation; When the electric current by rectifier bridge 1 is 3.5A when above, comparator 3 makes the J of relay 8 by central processing unit 5 (CPU) Control Driver 6
1, J
2Adhesive simultaneously, little, the big capacitance group of control reactive power automatic compensation circuit puts into operation simultaneously.J when relay 8
1, J
2When difference or adhesive simultaneously, J
3Also,, carry out the preparation that drops into different capacitance group for variation next time of load with all adhesives.Therefore, transformer underloading, in carry, under the situation of fully loaded or overload, make the power factor (PF) of system can both stable operation under 0.9～0.99 optimum state.
Claims (3)
1. the electric capacity combination microcomputer that is used for reactive power automatic compensation control, it is characterized in that, comprise rectifier bridge, potentiometer, comparator, crystal oscillator, central processing unit, driver, luminous tube, relay and power supply, one end of rectifier bridge closes circuit by the capacitance-resistance corner and is connected with the input anode of comparator, the negative input end of comparator is connected with potentiometer, one termination of potentiometer+5V power supply, other end ground connection, the output of comparator is connected with the input of central processing unit respectively, and be connected with+5V power supply by resistance respectively, one termination of comparator+5V power supply, other end ground connection, the two ends of central processing unit are passed through capacitor C respectively with the two ends Lian Jie ， And of crystal oscillator respectively
3, C
4Ground connection, one termination of central processing unit+5V power supply, other end ground connection, the output of central processing unit is connected with the anode of relay, resistance and diode respectively by output end of driver, resistance is connected with the negative terminal of luminous tube, another termination+5V power supply of the anode of luminous tube and the negative terminal of diode and relay, the output of+5V power supply is connected to filter capacitor, the negativing ending grounding of filter capacitor.
2. the electric capacity combination microcomputer that is used for reactive power automatic compensation control as claimed in claim 1 is characterized in that the resistance R that circuit is closed in described capacitance-resistance corner
1With R
2Parallel connection is connected resistance R with rectifier bridge
1With capacitor C
2Negative terminal in parallel connect And ground connection, resistance R with the rectification bridging
2With capacitor C
2Anode in parallel be connected with the input anode of comparator.
3. the electric capacity combination microcomputer that is used for reactive power automatic compensation control as claimed in claim 1 is characterized in that the output of described+5V power supply is connected to filter capacitor, the negativing ending grounding of filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200134139U CN201066789Y (en) | 2007-07-20 | 2007-07-20 | Capacitance combined micro PC for passive automatic compensation control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200134139U CN201066789Y (en) | 2007-07-20 | 2007-07-20 | Capacitance combined micro PC for passive automatic compensation control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066789Y true CN201066789Y (en) | 2008-05-28 |
Family
ID=39483973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200134139U Expired - Fee Related CN201066789Y (en) | 2007-07-20 | 2007-07-20 | Capacitance combined micro PC for passive automatic compensation control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066789Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779629A (en) * | 2015-05-04 | 2015-07-15 | 刘洋 | Wireless communication control system for capacitance compensation cabinet in transmission grid |
-
2007
- 2007-07-20 CN CNU2007200134139U patent/CN201066789Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779629A (en) * | 2015-05-04 | 2015-07-15 | 刘洋 | Wireless communication control system for capacitance compensation cabinet in transmission grid |
| CN104779629B (en) * | 2015-05-04 | 2017-03-01 | 深圳市中远通电源技术开发有限公司 | Wireless communication control system for the capacitor compensation cabinet in power transmission network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANBIAN GUODA ENERGY SAVING TECHNOLOGY EQUIPMENT Free format text: FORMER OWNER: MA ZHENFANG Effective date: 20080829 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080829 Address after: No. 661, Qingxin South Street, Changbai Road, Jilin, Yanji: 133001 Patentee after: Yanbian Guoda Energy-saving Technology Equipment Co., Ltd. Address before: South Street in Dongling District of Shenyang city of Liaoning Province, No. 117, zip code: 110015 Patentee before: Ma Zhenfang |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20090820 |