CN1845416A - Compensation process of reactive-load track compensation apparatus and its control software - Google Patents
Compensation process of reactive-load track compensation apparatus and its control software Download PDFInfo
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- CN1845416A CN1845416A CNA2006100397914A CN200610039791A CN1845416A CN 1845416 A CN1845416 A CN 1845416A CN A2006100397914 A CNA2006100397914 A CN A2006100397914A CN 200610039791 A CN200610039791 A CN 200610039791A CN 1845416 A CN1845416 A CN 1845416A
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The related compensation method with a reactive track compensator comprises: with two groups of compensation capacitors, first running the cycle switch, then the binary switch when power factor up to given value. Wherein, the control software comprises program initialization, and subroutines for calculation, display, and switch. Thereby, with compensated power factor up to 0.95, this invention has notable economic and social benefits.
Description
Technical field
The present invention relates to a kind of compensation method and Control Software thereof of reactive-load track compensator, belong to the electric reactive compensating technical field.
Background technology
In electric power system, many power consumption equipments are perceptual, because inductive load can make the electric current lagging voltage, so power factor is low excessively, in identical supply network,, the power supply capacity of controller switching equipment is descended if power factor is low excessively, when most importantly reactive current is by lead, can the loss active energy.In order to remedy this class problem, the normal method that adopts switching and connect the capacitor group compensates reactive power, improves power factor, a kind of compensator relatively more commonly used at present, be to use the mode of circulation time-delay switching, the capacitor volume on the every road of this compensator equates, and capacitor volume is bigger, so in compensation process, just may occur dropping into regard to overcompensation, withdraw from and under-compensated phenomenon, oscillatory occurences that Here it is, reason are that the compensation gradient is bigger; Another kind of compensator carries out switching (hereinafter to be referred as the binary system switching) by the binary counting mode, though compensation effect is more satisfactory, there is the frequent excessively problem of switching in this binary system switching.
The compensation method and the Control Software thereof that the purpose of this invention is to provide a kind of reactive-load track compensator, solve the frequent excessively deficiency of switching that oscillatory occurences that existing circulation time-delay switching mode exists and binary system switching exist, realize that compensation effect is more satisfactory and switching is not frequent.
The objective of the invention is to be achieved through the following technical solutions, a kind of compensation method of reactive-load track compensator, it is characterized in that described method is to adopt two groups of compensation condensers, one group of switching cycle, another group is carried out switching by the binary counting mode, at first move switching cycle, when power factor reached set point, running status transferred the binary system switching to, when withdrawing from, then at first excise binary system capacitor group, excise circulation compensation condenser group again.
A kind of compensation method Control Software of reactive-load track compensator, comprise program initialization, call counting subroutine, call display subroutine, call the switching subprogram, jump to and call counting subroutine, it is characterized in that described to call the switching subprogram be according to rated output factor angle and to look into the survey line road be that capacitive or resistive, perception decision are carried out the excision subprogram or dropped into subprogram.
The present invention is by adopting two groups of compensation condensers, and at first move switching cycle, when power factor reaches set point, transfer the binary system switching again to, be under the support of control core circuit and related software with the computer, finish data acquisition, handle, solved bigger problem and the frequent excessively problem of binary system switching of switching cycle gradient, the present invention passes through microcomputerized control, make circulation compensation and binary system linear compensation reach complementary purpose, make compensation effect more satisfactory and switching is not frequent, the compensation power factor can reach more than 0.95, satisfies the exploitation of reactive-load compensator and produces needs, has remarkable economic efficiency and social benefit.
Description of drawings
Fig. 1 is a main program flow chart of the present invention;
Fig. 2 is switching subroutine flow chart among the present invention;
Fig. 3 drops into subroutine flow chart among the present invention;
Fig. 4 excises subroutine flow chart among the present invention;
Fig. 5 regulates subroutine flow chart among the present invention
Embodiment
Further specify the present invention in conjunction with the accompanying drawings and embodiments, compensation method of the present invention is to adopt two group capacitors, one group is that all capacitor volume equate, as circulation compensation condenser group, another group is the capacitor group by the binary number word arrangement, at first moves circulation compensation condenser group during operation, carries out switching cycle, when power factor was mended certain numerical value, running status transferred the binary system switching to.When withdrawing from, at first excise the electric capacity of binary system capacitor group, after the capacitor of binary system capacitor group had been moved back, running status transferred the circulation excision to.Detailed process illustrates as follows: the transformer of a 400Kva, and desiring the compensating reactive power amount is 150Kvar, and the capacitor of circulation compensation condenser group is divided into 4 the tunnel, and every road is 30Kvar, altogether 120Kvar.The electric capacity total capacity of binary system capacitor group is 30Kvar, also is divided into 4 the tunnel, and every appearance of a street amount is respectively 2Kvar, 4Kvar, 8Kvar, 16Kvar.Require the compensation power factor between 0.95 to 0.99, binary system capacitor group reaches more than 0.90 bring into operation (being set point) in power factor.Circulate when bringing into operation to establish and cut, single-chip microcomputer is monitored constantly to power factor, at this moment has three kinds of situations all can enter the binary system running status, and (1) power factor is more than 0.90; (2) capacitor of circulation capacitor group has all put into operation; (3) overcompensation, at first check the capacitor whether binary system capacitor group puts into operation, withdraw from by the binary counting mode if just have, if just do not excise one tunnel circulation capacitor group, change the adjusting subprogram then over to, regulate subprogram and move,, will adjust to power factor more than 0.95 once enter the adjusting subprogram by the binary counting mode.
The realization of this compensation method, also need the support of software, dropping into threshold value in the design of this routine preface is that power factor drops into capacitor less than 0.95, the excision threshold value be greater than 0.99 or excises capacitor during for capacitive that the set point that switching cycle transfers to by the binary counting switching is a power factor 0.90.Control Software comprises program initialization, calls counting subroutine, calls display subroutine, calls the switching subprogram, jumps to and call counting subroutine, wherein calls the switching subprogram and be according to rated output factor angle and to look into the survey line road be that capacitive or resistive, perception decision are carried out the excision subprogram or dropped into subprogram.Drop into subprogram, as power factor during less than set point (COS＜0.90 time), drop into one tunnel circulation capacitor, power factor is greater than set point and when dropping into threshold value (0.90＜COS＜0.95), operation binary system capacitor group; The excision subprogram, when power factor greater than excision threshold value (0.99) or excise the capacitor group during for capacitive, at first excise two and advance the capacitor group, excise circulation capacitor group again, every excision capacitor that once circulates all can call and once regulates subprogram.
Claims (8)
1, a kind of compensation method of reactive-load track compensator, it is characterized in that described method is to adopt two groups of compensation condensers, one group of switching cycle, another group is carried out switching by the binary counting mode, at first moves switching cycle, when power factor reaches set point, running status transfers the binary system switching to, when withdrawing from, then at first excise binary system capacitor group, excise circulation compensation condenser group again.
2, the compensation method of reactive-load track compensator according to claim 1, it is characterized in that in two groups of compensation condensers, one group is that all capacitor volume equate, is circulation compensation condenser group, and another group is the capacitor group by the binary number word arrangement.
3, the compensation method of reactive-load track compensator according to claim 1 and 2, each is made up of two-way at least for it is characterized in that circulating compensation condenser group and binary system capacitor group.
4, the compensation method of reactive-load track compensator according to claim 1 and 2, the capacity on each road just in time is the summation of binary system capacitor group capacitance in the compensation condenser group that it is characterized in that circulating.
5, a kind of compensation method Control Software of reactive-load track compensator, comprise program initialization, call counting subroutine, call display subroutine, call the switching subprogram, jump to and call counting subroutine, it is characterized in that the described switching subprogram of calling is to be capacitive or resistive, perceptual decision execution excision subprogram or to drop into subprogram according to rated output factor angle and detection line.
6, the compensation method Control Software of reactive-load track compensator according to claim 5, it is characterized in that when power when reaching set point, running status transfers the binary system switching to, when power factor is that set point is when following, drop into the circulation capacitor, when power factor is more than the set point and when the input threshold value is following, throw binary system capacitor group.
7, the compensation method Control Software of reactive-load track compensator according to claim 5, it is characterized in that having three kinds of states all can move the binary system switching, (1) when power factor during greater than set point, (2) when circulation capacitor group has all been thrown, (3) are not when overcompensation and binary system capacitor group drop into; The excision subprogram is at first excised binary system capacitor group by the binary counting mode, excises circulation capacitor group again, and every excision capacitor group that once circulates will be called and once regulates subprogram.
8, the compensation method Control Software of reactive-load track compensator according to claim 7 is characterized in that regulating subprogram and moves by the binary counting mode, once enter the adjusting subprogram, will adjust to power factor more than 0.95.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100397914A CN1845416A (en) | 2006-04-13 | 2006-04-13 | Compensation process of reactive-load track compensation apparatus and its control software |
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| CNA2006100397914A CN1845416A (en) | 2006-04-13 | 2006-04-13 | Compensation process of reactive-load track compensation apparatus and its control software |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161459A1 (en) * | 2013-03-30 | 2014-10-09 | Neal George Stewart | Algorithm for passive power factor compensation method with differential capacitor change and reduced line transient noise |
| CN105656060A (en) * | 2016-03-29 | 2016-06-08 | 国网浙江奉化市供电公司 | Transformer and regional power grid system |
| CN108663567A (en) * | 2018-04-28 | 2018-10-16 | 宁波三星医疗电气股份有限公司 | A kind of metering method of overpower factor requirement |
| CN108765747A (en) * | 2018-04-28 | 2018-11-06 | 宁波三星医疗电气股份有限公司 | A kind of metering method of overpower factor electricity |
-
2006
- 2006-04-13 CN CNA2006100397914A patent/CN1845416A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014161459A1 (en) * | 2013-03-30 | 2014-10-09 | Neal George Stewart | Algorithm for passive power factor compensation method with differential capacitor change and reduced line transient noise |
| CN105409084A (en) * | 2013-03-30 | 2016-03-16 | 逸杰电子有限公司 | Algorithm for passive power factor compensation method with differential compensation change and reduced line transient noise |
| CN105409084B (en) * | 2013-03-30 | 2018-12-04 | 逸节电子有限公司 | Algorithm for the Passive Power factor compensation method with differential compensation variation and the line transient noise of reduction |
| CN105656060A (en) * | 2016-03-29 | 2016-06-08 | 国网浙江奉化市供电公司 | Transformer and regional power grid system |
| CN108663567A (en) * | 2018-04-28 | 2018-10-16 | 宁波三星医疗电气股份有限公司 | A kind of metering method of overpower factor requirement |
| CN108765747A (en) * | 2018-04-28 | 2018-11-06 | 宁波三星医疗电气股份有限公司 | A kind of metering method of overpower factor electricity |
| CN108663567B (en) * | 2018-04-28 | 2020-07-14 | 宁波三星医疗电气股份有限公司 | Metering method for demand of overpower factor |
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