CN100478821C - Electric power controlling and economizing apparatus and electric power controlling method - Google Patents
Electric power controlling and economizing apparatus and electric power controlling method Download PDFInfo
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- CN100478821C CN100478821C CNB2006100851061A CN200610085106A CN100478821C CN 100478821 C CN100478821 C CN 100478821C CN B2006100851061 A CNB2006100851061 A CN B2006100851061A CN 200610085106 A CN200610085106 A CN 200610085106A CN 100478821 C CN100478821 C CN 100478821C
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005070 sampling Methods 0.000 claims abstract description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 230000000052 comparative effect Effects 0.000 claims description 3
- 239000011889 copper foil Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 101001088744 Homo sapiens Probable inactive ribonuclease-like protein 13 Proteins 0.000 description 1
- 102100033989 Probable inactive ribonuclease-like protein 13 Human genes 0.000 description 1
- 101100247281 Schizosaccharomyces pombe (strain 972 / ATCC 24843) ral2 gene Proteins 0.000 description 1
- 101100309600 Schizosaccharomyces pombe (strain 972 / ATCC 24843) scd2 gene Proteins 0.000 description 1
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Abstract
The invention discloses an electric control and saving device and electric controlling method, wherein the main circuit of electric control and saving device contains transformer only without any electronic element, which improves reliability without harmonic interference for electric net; the electric controlling method adopts loop control elementary to make load pressure output by main circuit as feedback through sampling, which realizes full automatic dynamic tracing for main circuit power according to switch-in transformer quantity in the main circuit. The invention realizes continuous adjustment with load, which improves efficiency of control to save power.
Description
Technical field
The present invention relates to a kind of to the electric network source real-time follow-up, to the electric power of user load dynamic adjustments control saveall and electrical control method, can saves energy, especially remarkable to the control and the reduction effect of illuminator.
Background technology
At present, common saves energy equipment can be divided into three kinds of compensation, thyristor type, auto-couplings on the market.There is following defective:
Compensation: this product is similar to Electric capacity compensation device, is parallel in the circuit, only reduces reactive loss, does not save active power, and it is not obvious to the reduction effect that the user brings;
Thyristor type: the life-span is short, destroys sine wave, and output is unstable, causes light to dodge and goes out, and produces a large amount of harmonic waves simultaneously, pollutes electrical network;
Auto-coupling: voltage output end has several groups of taps, selects one group to do step-down control, can not regulate.Voltage drops to the range of instability when peak times of power consumption, can cause light to dodge and go out; Saves energy is not in place when the electricity consumption low peak period.
Summary of the invention
In order to overcome many defectives of existing energy-saving device, the object of the present invention is to provide a kind of electric power control saveall and electrical control method.The major loop of described electric power control saveall only comprises transformer group, does not contain any electron device, and the reliability height does not have harmonic interference to electrical network; Adopt loop control theory, the load voltage of major loop output is compared as the reference voltage that feeds back and set in advance through over-sampling, and regulate the number that transformer in the transformer group inserts major loop according to comparative result, thereby realize main circuit power is carried out full-automatic dynamic tracking, realize that band carries the purpose of regulating continuously, all the time export stable optimum power to the electricity consumption low peak period from peak times of power consumption, therefore the efficient of control and saves energy is higher.
For achieving the above object, first technical scheme provided by the present invention is a kind of electric power control saveall, comprising:
The major loop that is connected with current supply circuit, by the inferior utmost point side of transformer group (Energy-saving coil group) formation that is connected in series successively, described major loop be input as supply voltage, be output as load voltage, described transformer group comprises n transformer, wherein, n is more than or equal to 2; Described transformer group primary side rated voltage is 220V, and the primary side rated voltage becomes Geometric Sequence successively;
Be connected on the control circuit on the described transformer group primary side, comprise the A.C. contactor group that constitutes by 2n A.C. contactor, be used for the control transformer group;
Be connected on the contactor drive circuit on the control circuit, be used to drive described A.C. contactor group;
Wherein, the load voltage of described major loop output is as feedback input contactor drive circuit.
As shown in Figure 1, control the circuit structure schematic diagram of saveall for above-mentioned electric power.Wherein, contactor drive circuit comprises: control module is used for comparing voltage value and the coded sequence that produces the pilot relay group; The benchmark that is connected with control module is provided with circuit, for control module provides reference voltage signal; By the relay group of control module control, described relay group comprises by 2n relay, is respectively applied for a controlling and driving 2n A.C. contactor; The sampling transmitter that is connected with major loop output terminal, control module is used for the load voltage of major loop output is fed back to control module respectively.Wherein, the power supply of control module is provided by the feed circuit of major loop.
Second technical scheme provided by the invention is a kind of electrical control method, adopts close loop control circuit that the load voltage on the main circuit power supply is carried out regulating and controlling.With reference to Fig. 1, described electrical control method comprises step:
1) produces reference voltage signal, send into control module as the output voltage benchmark.
2) send into control module behind the load voltage of exporting on the sampling main circuit power supply, as feedback voltage signal;
3) feedback voltage signal and reference voltage signal are compared computing, and produce a coded sequence according to comparative result;
4) coded sequence drives relay group, A.C. contactor group, transformer group primary side successively in proper order, and the transformer group primary side is sequentially devoted oneself to work or excision work, changes the pressure drop and the load output thereof of the major loop at transformer group primary side place.
Wherein, described transformer group comprises n transformer, and n is more than or equal to 2.The primary side rated voltage of described transformer group becomes Geometric Sequence successively, can provide 2
nPlant the combination of voltage drop.For example, when n=3, promptly comprise the transformer group that 3 transformers are formed in the major loop, the rated voltage of transformer group time utmost point side is respectively a, 2a, 4a.Then the combination of three transformers voltage that can provide have 0, eight kinds of a, 2a, 3a, 4a, 5a, 6a, 7a.
Those of ordinary skill in the art will be understood that above-described electric power control saveall and electrical control method when being applied to the three phase supply power supply, and should be interpreted as naturally for each phase power supply all has identical application.
The invention has the beneficial effects as follows: carry out components and parts and adopt transformer (Energy-saving coil), belong to the inductive components and parts, can not cause harmonic interference, electrical network is not had harm electrical network.Adopt closed-loop control system, can carry out full-automatic dynamic tracking, realize regulating continuously, export stable, suitable lightening voltage all the time power supply.The reliability height in the serviceable life of both having improved equipment, has improved the efficient of control and saves energy again greatly.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the circuit logic structural representation of electric power control saveall.
Fig. 2 is the circuit theory diagrams of the embodiment of the invention one.
Fig. 3 is the circuit theory diagrams of the embodiment of the invention two.
Fig. 4 is the circuit theory diagrams of the embodiment of the invention three.
Fig. 5 (a)-(d) is the structural representation of single transformer (Energy-saving coil).
Embodiment
Below in conjunction with accompanying drawing, by preferred embodiment content of the present invention is described in detail, but is not construed as limiting the invention.
Embodiment one:
As shown in Figure 2, expression electric power control saveall is used for the circuit theory diagrams of three-phase alternating current feed circuit.Below to being described in detail mutually wherein, those skilled in the art will appreciate that other situations of two also are identical.
With the single-phase circuit is example, and electric power control saveall comprises main circuit, control circuit and the contactor drive circuit that connects successively.Main circuit is connected to form successively by the primary side of two transformers (Energy-saving coil), and it is input as supply voltage, is output as load voltage.Transformer is controlled by the control circuit that is connected on its primary side, and control circuit comprises 4 contactors, is connected with the two ends of transformer primary respectively.Contactor is controlled by contactor drive circuit, comprises 4 relays in the contactor drive circuit, drives 4 contactors respectively.Control circuit is firm and hard existing by computer, comprises in the computer plate: single-chip microcomputer and control circuit thereof are used for comparing voltage value and the coded sequence that produces the pilot relay group; The benchmark that is connected with single chip machine controlling circuit is provided with circuit, for single machine unit provides reference voltage signal; The sampling transmitter is connected with major loop output terminal and single chip machine controlling circuit respectively, is used for the load voltage of major loop output is fed back to single-chip microcomputer.Contactor drive circuit adopts the voltage sample closed-loop control system, line voltage and load variations institute feedack be sent to driving circuit and constantly and setting voltage value compare, driving circuit will drive different contactor actions, control different Energy-saving coil work, thereby change the voltage drop on the main winding automatically, load voltage is stabilized in setting value, the current/voltage of control output.
Wherein, the structural representation of single transformer (Energy-saving coil) is shown in Fig. 5 (a)-(d), and the primary side of transformer adopts the copper conductor (not shown) to connect, and conductor head end and terminal extension line are received connecting terminal block; Primary side adopts copper bar (Copper Foil or copper strips) to connect, and conductor head end and end are drawn as connection terminal with copper busbar.Transformer (Energy-saving coil) primary side rated voltage is 220V, and the primary side rated voltage is respectively 4V and 8V, and available voltage drop has 0, four kinds of 4V, 8V, 12V.
Embodiment two:
Electric power control saveall as shown in Figure 3, the difference of it and embodiment one shown in Figure 2 is, comprise three transformers (Energy-saving coil) in the present embodiment, the rated voltage of each transformer secondary is respectively 5v, 10V, 20V, can provide 0,5v, 10V, 20V, and 15 (=5+10) v, 25 (=5+20) V, 30 (=10+20) V, 35 (=5+10+20) V totally 2
3=8 kinds.
Embodiment three:
Electric power control saveall as shown in Figure 4, the difference of it and Fig. 2 and embodiment shown in Figure 3 is, the rated voltage that comprises each transformer secondary of four transformers (Energy-saving coil) in the present embodiment is respectively 3v, 6V, 12V, 24V, can provide 0,3v, 6V, 12V, 24V, and 9 (=3+6) V, 15 (=3+12) V, 27 (=3+24) V, 18 (=6+12) V, 30 (=6+24) V, 36 (=12+24) V, 21 (=3+6+12) V, 33 (=3+6+24) V, 42 (=6+12+24) V, 39 (=3+12+24) V, 45 (=3+6+12+24) V totally 2
4=16 kinds.
Embodiment four:
Below be example with the electric power control saveall that comprises three transformers among the embodiment two, describe electrical control method of the present invention in detail in conjunction with Fig. 1 and Fig. 3.
3 groups of transformers are followed successively by TM1, TM2, TM3, and the primary side rated voltage is 220V, and inferior utmost point side voltage becomes Geometric Sequence, is followed successively by 5V, 10V, 20V; 3 groups of transformers can produce 2 according to the mode of permutation and combination during work
3=8 kinds of voltage gears, controlling every grade of output adjusting incremental voltage is 5V, promptly 0V, 5V, 10V, 15V, 20V, 25V, 30V, 35V are totally 8 grades;
6 relays are followed successively by RAL1, RAL2, RAL3, RAL4, RAL5, the RAL6 (not shown) is positioned at the computer plate, connect one to one with 6 A.C. contactors in the contactor drive circuit, 6 A.C. contactors are followed successively by 3KA, 6KA, 2KA, 5KA, 1KA, 4KA;
Computer plate power supply transmitter is that TC1, sampling transmitter are TC2.
Adopt the single-chip microcomputer (not shown) as control module in the present embodiment, its external structure is embodied as the computer plate shown in the figure.
At first, benchmark is provided with the reference voltage of circuit according to user's appointment, for single-chip microcomputer provides reference voltage signal;
Secondly, sampling transmitter TC2 sends the load voltage of major loop output back to the input end of single-chip microcomputer;
Single-chip microcomputer carries out computing relatively according to the program of setting to reference voltage U and load voltage Uo, and concrete computing method are: Uo-U=Δ, k=TRUNC (Δ/5).When k＜0, program is carried out to the direction of little gear, k＞0 o'clock, and program is carried out to the direction of big gear.The amplitude of carrying out gear is determined by the k value; Coded sequence of every grade of correspondence, the code sequence corresponding relation is as follows:
The corresponding 000H of 0v, single chip circuit are carried out coding driving relay and are driven contactor 6KA, 5KA, 4KA adhesive again, and 3KA, 2KA, 1KA disconnect, and make TM1, TM2, TM3 devote oneself to work.
The corresponding 001H of 5V, single chip circuit carry out coding driving relay and drive contactor 3KA, 5KA, 4KA adhesive again, and 6KA, 2KA, 1KA disconnect, and make TM1 devote oneself to work, and TM2, TM3 excise work.
The corresponding 010H single chip circuit of 10V is carried out coding driving relay and is driven contactor 6KA, 2KA, 4KA adhesive again, and 3KA, 5KA, 1KA disconnect, and make TM2 devote oneself to work, and TM1, TM3 excise work.
The corresponding 011H single chip circuit of 15V is carried out coding driving relay and is driven contactor 3KA, 2KA, 4KA adhesive again, and 6KA, 5KA, 1KA disconnect.
The corresponding 100H single chip circuit of 20V is carried out coding driving relay and is driven contactor 6KA, 5KA, 1KA adhesive again, and 3KA, 2KA, 4KA disconnect.
The corresponding 101H single chip circuit of 25V is carried out coding driving relay and is driven contactor 3KA, 5KA, 1KA adhesive again, and 6KA, 2KA, 4KA disconnect.
The corresponding 110H single chip circuit of 30V is carried out coding driving relay and is driven contactor 6KA, 2KA, 1KA adhesive again, and 3KA, 5KA, 4KA disconnect.
The corresponding 111H single chip circuit of 35V is carried out coding driving relay and is driven contactor 3KA, 2KA, 1KA adhesive again, and 6KA, 5KA, 4KA disconnect.
As main circuit input voltage Ui=220V, reference voltage U=205V, during load voltage Uo=220V, Δ=Uo-U=15V, k=Δ/5=3, single-chip microcomputer carry out successively 000H →
001H → 010H → 011H, make TM1, TM2 devote oneself to work, TM3 excises work, main circuit voltage is reduced to 5+10=15V, this moment Uo=Ui-15=205V, the sampling transmitter is sent into single-chip microcomputer with load voltage Uo sampling back as feedback signal, single-chip microcomputer carries out computing relatively according to the program of setting to U and Uo, U is consistent with Uo, then no longer output sequence coded order, and the state of main circuit keeps always.
When voltage ripple of power network, Ui can change simultaneously, suppose Ui=228V this moment, U=205V is constant, this moment is because transformer primary voltage becomes 228V by 220V, the transformer output voltage changes, and makes major loop output voltage U o=213V, and the Uo feedback signal is sent into single-chip microcomputer by the sampling transmitter, single-chip microcomputer carries out computing relatively according to the program of setting to U and Uo, Δ=8V, k=1, this moment, single-chip microcomputer produced sequential coding: a 011H → 100H, make TM1, TM2 excises work, TM3 devotes oneself to work, this moment Uo ≈ 208V, Uo sends feedback signal into single-chip microcomputer by the sampling transmitter, the scm software program is carried out computing relatively to U and Uo, U this moment consistent with Uo (0＜Δ＜5 o'clock, program is judged as unanimity), this state keeps always.
Those skilled in the art will be understood that, in other preferred embodiment, the control module able to programme that adopts PLC or PC or other to know is in the industry replaced single-chip microcomputer, can realize fully and the present embodiment identical functions that the present invention is not limited within the disclosed scope of embodiment.
Claims (9)
1, a kind of electric power control saveall comprises:
The major loop that is connected with current supply circuit, being connected in series successively by the inferior utmost point side of transformer group constitutes, described major loop be input as supply voltage, be output as load voltage, wherein, described transformer group comprises n transformer, n is more than or equal to 2;
Be connected on the control circuit on the described transformer group primary side, comprise the A.C. contactor group that constitutes by 2n A.C. contactor, be used for the control transformer group;
Be connected on the contactor drive circuit on the control circuit, thereby by comparing devoting oneself to work or excision work of feedback voltage and reference voltage signal pilot relay group, drive described A.C. contactor group, and then two primary sides of the transformer in the control transformer group link together or are connected with input voltage, and make the transformer group primary side produce pressure drop to change the major loop output voltage.
2, electric power control saveall as claimed in claim 1 is characterized in that, the load voltage of described major loop output is as feedback input contactor drive circuit.
3, electric power control saveall as claimed in claim 1 or 2 is characterized in that described contactor drive circuit comprises:
Control module is used for comparing voltage value and the coded sequence that produces the pilot relay group;
The benchmark that is connected with control module is provided with circuit, for control module provides reference voltage signal;
By the relay group of control module control, described relay group comprises 2n relay, is respectively applied for a controlling and driving 2n A.C. contactor;
The sampling transmitter is connected with major loop output terminal, control module respectively, is used for the load voltage of major loop output is fed back to control module.
4, electric power control saveall as claimed in claim 1 is characterized in that described primary side conductor adopts copper conductor, and conductor head end and terminal extension line are received connecting terminal block; Transformer time utmost point side conductor adopts Copper Foil or copper strips, and conductor head end and end are drawn as connection terminal with copper busbar.
5, electric power control saveall as claimed in claim 1 is characterized in that described transformer group primary side rated voltage is 220V, and the primary side rated voltage becomes Geometric Sequence successively.
6, electric power control saveall as claimed in claim 3 is characterized in that described control module is single-chip microcomputer, PLC, PC.
7, a kind of electrical control method comprises step:
1) produces reference voltage signal, send into control module as the output voltage benchmark;
2) send into control module behind the load voltage of exporting on the sampling main circuit power supply, as feedback voltage signal;
3) feedback voltage signal and reference voltage signal are compared computing, and produce a coded sequence according to comparative result;
4) coded sequence drives relay group, A.C. contactor group, transformer group primary side successively in proper order, and the transformer group primary side is sequentially devoted oneself to work or excision work, changes the pressure drop and the load output thereof of the major loop at transformer group primary side place.
8, electrical control method as claimed in claim 7 is characterized in that, described transformer group comprises n transformer, and n is more than or equal to 2.
9, electrical control method as claimed in claim 7 is characterized in that, the primary side rated voltage of described transformer group becomes Geometric Sequence successively, can provide 2
nPlant pressure drop, n is the transformer number, and n is more than or equal to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100851061A CN100478821C (en) | 2005-05-18 | 2006-05-18 | Electric power controlling and economizing apparatus and electric power controlling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510070736.7 | 2005-05-18 | ||
| CN200510070736 | 2005-05-18 | ||
| CNB2006100851061A CN100478821C (en) | 2005-05-18 | 2006-05-18 | Electric power controlling and economizing apparatus and electric power controlling method |
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| CN1881124A CN1881124A (en) | 2006-12-20 |
| CN100478821C true CN100478821C (en) | 2009-04-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105487480B (en) * | 2016-01-29 | 2018-11-20 | 南通米兰特电气有限公司 | Control transformer dormancy control method and structure |
| CN106849100A (en) * | 2016-12-06 | 2017-06-13 | 国网浙江省电力公司 | A kind of system of ship shore electric output control |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001519A1 (en) * | 1998-11-11 | 2000-05-17 | THOMSON multimedia S.A. | Protection circuit for a switched-mode power supply |
| CN2524266Y (en) * | 2001-09-26 | 2002-12-04 | 上海高博电源设备有限公司 | A.C. voltage stabilizer |
| CN2661954Y (en) * | 2003-12-11 | 2004-12-08 | 西安森宝电气工程有限公司 | Wattless dynamic automatic compensation device for wind power generator |
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2006
- 2006-05-18 CN CNB2006100851061A patent/CN100478821C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1001519A1 (en) * | 1998-11-11 | 2000-05-17 | THOMSON multimedia S.A. | Protection circuit for a switched-mode power supply |
| CN2524266Y (en) * | 2001-09-26 | 2002-12-04 | 上海高博电源设备有限公司 | A.C. voltage stabilizer |
| CN2661954Y (en) * | 2003-12-11 | 2004-12-08 | 西安森宝电气工程有限公司 | Wattless dynamic automatic compensation device for wind power generator |
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