CN1321356C - Arcless compensation type single-phase voltage regulating and stabilizing device - Google Patents
Arcless compensation type single-phase voltage regulating and stabilizing device Download PDFInfo
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- CN1321356C CN1321356C CNB2004100131625A CN200410013162A CN1321356C CN 1321356 C CN1321356 C CN 1321356C CN B2004100131625 A CNB2004100131625 A CN B2004100131625A CN 200410013162 A CN200410013162 A CN 200410013162A CN 1321356 C CN1321356 C CN 1321356C
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- relay
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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
Abstract
The present invention discloses a non-arc compensating single phase voltage regulating and stabilizing device which comprises a protecting electric appliance, a sampling control circuit, a control circuit and a compensating circuit. The present invention is characterized in that the control circuit comprises a plurality of relays, wherein the control coils of the relays are controlled by a sampling controller, and the compensating circuit is controlled by the corresponding contacts of the relays. The compensating circuit comprises a compensating transformer, the secondary winding coil of the compensating transformer is connected in series between a power supply and a load, a primary winding is provided with a plurality of coils connected in series, and the connecting ends of the taps of the coils are respectively connected with a phase line or a zero line through the corresponding contacts of the relays of the control circuit. Voltage and a current are not interrupted in the process of use, the coils of the primary winding are switched to be in different coil groups in a delayed mode without arcs under the control of the sampling controller and the control circuit, secondary output is positively or reversely compensated, and the functions of regulating and stabilizing output voltage are realized. The present invention is suitable for single-phase power supply with voltage regulation and stabilization.
Description
Technical field
The present invention relates to a kind of circuit arrangement of ac mains compensating power, especially Alternating Current Power Supply single-phase voltage regulating stable-pressure device.
Background technology
Existing single-phase voltage regulating stable-pressure device mainly is divided into servo electric machine type and auto-transformer type, and servo electric machine type is owing to be to utilize carbon brush to carry out pressure regulation, produces the arcing phenomenon and burn out rotor easily when carbon brush thread-changing groove.The failure rate height, incompatibility is comparatively being used in the rugged environment.There is momentary power failure phenomenon in auto-transformer type in the pressure regulation handoff procedure, produce arc and dodge, and burns out contact, thus can only be used for certain loads, as aircondition etc.
Summary of the invention
The purpose of this invention is to provide the compensation single-phase voltage regulating stable-pressure device of a kind of no arc, it should not have arc at work and flashes and resemble, and sine wave output voltage stably single-phasely needs the load of pressure regulation and voltage stabilizing to use for any.
The present invention includes holding circuit, sampling controller, control circuit and compensating circuit, it is characterized in that:
Described control circuit comprises several relays, and the control coil of each relay is subjected to the control of described sampling controller, its corresponding contacts control compensation circuit;
Described compensating circuit comprises a compensator transformer, the secondary winding of compensator transformer is serially connected with between power supply and the load, elementary winding is established the coil of several serial connections, and the corresponding contacts that each coil tap terminals pass through several relays of control circuit respectively is connected with phase line or zero line.
Described control circuit comprises several relays, the control coil of each relay is subjected to the control of described sampling controller, in these several relays, if the on/off of the contact of relay control power supply input phase line, remaining separated into two parts, the switching between each tap of coil of the elementary winding of compensator transformer is responsible in the contact of part relay, and often the opening of each relay, normally closed contact are connected with the two ends of the coil of an elementary winding respectively in this part; The commutation that be responsible between phase line and zero line the contact of another part relay is switched, and the common junction of this two parts relay is connected to each other.
The control method of each relay is in the described control circuit:
Before the contact of the relay that commutation between the relay that switches between each tap of coil of being responsible for the elementary winding of compensator transformer and responsible phase line and zero line is switched produces change action, the relay contact of another control power supply input phase line cuts off the power supply of control circuit earlier after the some time, the relay that relay that switches between each tap of coil of the responsible elementary winding of compensator transformer and responsible phase line and zero line switch just moves, and after treating that each relay is finished switching, this relay of control power supply input phase line is the energized line again, realizes not having and presses no arc to switch voltage-regulation voltage-stabilization.
The relay of being responsible for the on/off power lead can adopt the zero-crossing switching technology reducing arcing, though there are discreteness damping time in relay adhesive or disjunction.Certainly, also can adopt solid-state relay.
The single-phase voltage regulating stable-pressure device secondary winding of said structure is serially connected with between power supply and the load, in use electric current and voltage is uninterrupted, each coil of elementary winding passes through to drop into different coil groups under the control of sampling controller and control circuit, wherein, sampling controller is to the control of delaying time of the relay in the control circuit, the relay contact of the coil tap of wherein controlling each elementary winding is switched under no-voltage condition, promptly not having arc switches, secondary output is compensated forward or backwards, realize the function of adjusting and regulated output voltage.This installs compared with prior art, and it is wide to have the voltage-regulation scope, precision of voltage regulation height, and good output waveform, voltage-regulation process do not have the arc sudden strain of a muscle, and cost is low, and device lifetime is long, and high reliability features satisfies the needs that indoor outer pressure regulation and voltage stabilizing are powered.Be applicable to load that needs voltage stabilizing and load, the especially lighting load that different voltage-regulation voltage-stabilization central values need be provided according to the different periods in operational process.
Description of drawings
Shown in Figure 1, be structured flowchart of the present invention.
Shown in Figure 2, be compensating circuit of the present invention and part control circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, invention is elaborated.
Shown in Figure 1, be structured flowchart of the present invention, by among the figure as can be known, it is made of holding circuit, sampling controller, control circuit and compensating circuit.Holding circuit generally is made of overcurrent, overvoltage relay and fuse, is custom circuit.Sampling controller generally comprises single-chip microcomputer, and its principle of work is from the output terminal acquired signal, and signal is carried out sending control signal to holding circuit and control circuit after the analysis and judgement.It also is a prior art.Characteristics of the present invention are; compensating circuit comprises a compensator transformer; the delay circuit that control circuit contains several relays and should establish, holding circuit and sampling controller structure adopt existing technology, come control protection electric circuit and control circuit and compensating circuit according to sampled signal.The principle of work of this block diagram is: after the energising of this device, sampling controller collects voltage signal from output terminal, and enter Single Chip Microcomputer (SCM) system after this signal put in order, as calculated, after analysis and the judgement, Single Chip Microcomputer (SCM) system is sent corresponding relays in the control signal corresponding control control circuit, make each relay produce corresponding action, connect the primary winding coil of corresponding compensator transformer, compensator transformer enters corresponding superimposed voltage compensation forward or backwards, be reflected on compensator transformer secondary, making output voltage is the voltage-regulation voltage-stabilization central value of approaching program setting.In the control of relay, to the delay time monostable control of the relay of wherein controlling the power supply phase line, before switch the contact of other relays, cut off the input power supply earlier, make each contact depress switching, no arcing generation in nothing.The control of control power supply phase line relay can adopt existing alternating current zero crossing on/off technology control with the minimizing arcing simultaneously, or adopts solid-state relay.
As can be known, compensating circuit mainly is made up of transformer T in the transformer compensating circuit of Fig. 2 and part control circuit, and the secondary coil n of transformer T is serially connected with between power supply and the load, and elementary winding is made of several coil tandems and corresponding tap.Here by three winding coil N
1, N
2And N
3Compose in series, mainly consider from control accuracy.Each tap terminals of primary coil are by several relay controls of control circuit.The primary coil N of three serial connections in Fig. 2
1～N
3And corresponding four taps are controlled by five relay J 1～J5, wherein the break-make of the contact of relay J 5 control power supply input phase line L.Three corresponding numbers of turn of primary coil of compensator transformer T are N1 and N2 and N3, and the number of turn of secondary coil is n.For brevity, the label of each winding of transformer is got identical with its number of turn label.Control circuit comprises that five relay J 1, J2, J3, J4, J5 and corresponding delay circuit thereof constitute.The common junction of the 4th relay J 4 is connected with the common junction of first relay J 1, and the normally closed contact of relay J 4 is connected with the head end of the primary coil N1 of compensator transformer T, normally opened contact and coil N
1Tail end connect.The normally closed contact of first relay J 1 is connected with zero line N, and the normally opened contact of normally opened contact and the 3rd relay J 3 and the 5th relay J 5 interconnects, and is connected with phase line L by the normally opened contact of the 5th relay J 5.The normally closed contact of the 3rd relay J 3 is connected with zero line N.The common junction of the common junction of second relay J 2 and the 3rd relay J 3 interconnects, and normally closed contact is connected with the tail end of compensator transformer T primary coil N3, and normal opened contact is connected with the head end of primary coil N3.The head end of compensator transformer T primary winding coil N2 is connected with the tail end of coil N1, and tail end is connected with the head end of coil N3.As can be known, in alternating circuit, phase line L and zero line N exchange from the alternating current principle, and electrical appliance can also be worked, so the phase line L of above circuit and zero line N are interchangeable.Be attempted by coil N
3Capacitor C between the head and the tail terminals has afterflow and absorbs the effect of peak voltage when relay contact switches.
In Fig. 2, also see, three primary winding coil numbers of turn of compensator transformer T are respectively N1, N2 and N3, the secondary winding coil turn is n, during work, establishing the bucking voltage that obtains on T level of transformer is Δ U, and input voltage is U λ, output voltage U goes out, when output voltage is lower than setting value,, have under the situation of relay J 5 closures by sampling controller and control circuit control:
Compensating first grade of positive voltage is: Δ U=U λ/[(N2+N3)/and n], relay J 3, J4 action.
Compensating second grade of positive voltage is: Δ U=U λ/[N2/n], relay J 2, J3, J4 action.
When output voltage is higher than setting value,
Compensating first grade of negative voltage is: Δ U=-U λ [(N1+N2+N3)/and n], relay J 1 action.
Compensating second grade of negative voltage is: Δ U=-U λ/[(N1+N2)/and n], relay J 1, J2 action.
When output voltage is in the setting value accuracy rating:
Δ U=0 relay J 1～J4 is failure to actuate entirely
The principle formula is: and U goes out=and U λ+Δ U voltage-regulating and voltage-stabilizing device is by regulating the value of Δ U, make U go out to be in all the time in the accuracy rating of setting value, thereby reach the purpose of pressure regulation, voltage stabilizing, the present invention has utilized the mechanical type salient feature of relay normally open, normally closed contact cleverly, when distributing control signal arbituarily, owing to relay contact is realized the reason of machinery and electrical interlocks and also can not caused the turn-to-turn short circuit accident generation between short circuit between phase line L and the zero line N or the transformer coli winding even sampling controller work is undesired.The effect of the 5th relay J 5 is when the moment that needs to regulate bucking voltage Δ U, before each relay J 1～J4 action, the moment that generally is about a few tens of milliseconds is by time-delay control, the connecting terminal of block system relay J5 of elder generation and power lead L, finish behind the change action just closed again etc. relay J 1～J4, relay J 1～J4 is switched under no-voltage, and promptly zero-pressure is switched.Avoided relay contact in the transfer process of closing, opening, to produce the generation that electric arcing burns out the contact accident, the normally closed contact connecting to neutral line N of relay J 1, J3 particularly, normally opened contact is by relay contact J5 phase-connecting wire L, and normally opened contact and normally closed contact distance are very near, the conversion stroke is very little, is very easy to take place arcing when relay J 1, the commutation of J3 contact are switched under the situation that the loop does not cut off the power supply and causes phase line and zero line short circuit accident.Now because relay J 1～J4 switches no arcing under no-voltage.Therefore relay J 1～J4 can select the very little common relay of capacity, thereby reduces cost greatly.Certainly, can not select solid-state relay if will when switching, have arcing in the contact of relay yet, but the cost of solid-state relay is very high, be more than 15 times of common relay, and, be difficult to accomplish electrical interlocks between several relevant solid-state relays, when control signal is bad, easily produce short circuit, damage circuit, cause bigger economic loss.In this circuit, relay J 5 can be used solid-state relay, and performance can further improve.
More than adopt and comprise five relay J 1～J5 and three primary coil N
1, N
2And N
3Structural principle of the present invention and method of work have been described, the relay and the primary coil of respective numbers can be set in fact as required.So, no matter the primary coil of what relays and compensator transformer is set, as long as adopted the protection scope of the present invention that is of above-mentioned structure and method of work.
This device voltage-regulation voltage-stabilization precision height, good reliability, permanance is strong, is easy to safeguard that cost is low, adapts to and uses in rugged surroundings.Output waveform is sinusoidal wave simultaneously, and various perfect protections are arranged, and satisfies the power requirement of various loads fully.
Claims (3)
1, the compensation single-phase voltage regulating stable-pressure device of a kind of no arc, it comprises holding circuit, sampling controller, control circuit and compensating circuit, it is characterized in that:
Described control circuit comprises several relays (J1, J2, J3, J4 and J5), and the control coil of each relay is subjected to the control of described sampling controller, its corresponding contacts control compensation circuit;
Described compensating circuit comprises a compensator transformer (T), and the secondary winding (n) of compensator transformer (T) is serially connected with between power supply and the load; Elementary winding is established the coil (N of several serial connections
1, N
2And N
3), (corresponding contacts of J1～J5) is connected with phase line (L) or zero line (N) each tap terminals of coil by the control circuit corresponding relays respectively;
These several relays (among the J1～J5), establish the on/off of the contact control power supply input phase line (L) of a relay (J5), remaining separated into two parts, the coil (N of the elementary winding of compensator transformer (T) is responsible in the contact of a part of relay (J2, J4)
1～N
3) switching between each tap, often the opening of each relay, normally closed contact are connected with the two ends of the coil of an elementary winding respectively in this part; The commutation that be responsible between phase line and zero line the contact of another part relay (J1, J3) is switched, and the common junction of this two parts relay (J4 and J1, J2 and J3) is connected to each other.
2, the compensation single-phase voltage regulating stable-pressure device of no arc according to claim 1 is characterized in that the control method of each relay in the described control circuit is:
Before the contact of the relay that commutation between the relay that switches between each tap of coil of being responsible for the elementary winding of compensator transformer and responsible phase line and zero line is switched produces change action, the relay contact of another control power supply input phase line cuts off the power supply of control circuit earlier after the some time, the relay that relay that switches between each tap of coil of the responsible elementary winding of compensator transformer and responsible phase line and zero line switch just moves, and after treating that each relay is finished switching, this relay of control power supply input phase line is the energized line again, realizes not having and presses no arc to switch voltage-regulation voltage-stabilization.
3, the compensation single-phase voltage regulating stable-pressure device of no arc according to claim 2 is characterized in that:
The relay (J5) of described control circuit control power supply input phase line can adopt solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100131625A CN1321356C (en) | 2004-05-12 | 2004-05-12 | Arcless compensation type single-phase voltage regulating and stabilizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100131625A CN1321356C (en) | 2004-05-12 | 2004-05-12 | Arcless compensation type single-phase voltage regulating and stabilizing device |
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| Publication Number | Publication Date |
|---|---|
| CN1571236A CN1571236A (en) | 2005-01-26 |
| CN1321356C true CN1321356C (en) | 2007-06-13 |
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| CNB2004100131625A Expired - Fee Related CN1321356C (en) | 2004-05-12 | 2004-05-12 | Arcless compensation type single-phase voltage regulating and stabilizing device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100423397C (en) * | 2005-10-12 | 2008-10-01 | 广西大学 | Method for compensating coil drop induction voltage and contact arc-suppression for three-phase voltage regulator |
| CN101728830B (en) * | 2009-11-26 | 2012-07-11 | 广西诺斯贝电气有限公司 | Zero-current non-arcing switching type voltage-regulating and voltage-stabilizing device and voltage compensating method thereof |
| CN102955489B (en) * | 2011-08-29 | 2016-02-10 | 上海磐腾机电科技有限公司 | three-phase compensation type voltage stabilizer |
| CN103064454B (en) * | 2011-10-24 | 2016-01-20 | 上海美迪馨电子科技有限公司 | A kind of single-phase precision alternating-current voltage stabilizer |
| CN105846440A (en) * | 2016-05-20 | 2016-08-10 | 李建新 | Voltage compensator and voltage compensation method |
| CN105826925A (en) * | 2016-06-07 | 2016-08-03 | 国网青海省电力公司 | Automatic voltage regulator and automatic voltage regulation method |
| CN110247556A (en) * | 2019-04-28 | 2019-09-17 | 明珠电气股份有限公司 | The non-contact voltage stabilizer main circuit and non-contact voltage stabilizer of high voltage stability precision |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492996Y (en) * | 2001-06-28 | 2002-05-22 | 南宁微控高技术有限责任公司 | Three-phase intelligent lighting controller |
| CN2600846Y (en) * | 2003-02-27 | 2004-01-21 | 南宁欧顶电气有限责任公司 | Intelligent regulation and control converting station |
-
2004
- 2004-05-12 CN CNB2004100131625A patent/CN1321356C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2492996Y (en) * | 2001-06-28 | 2002-05-22 | 南宁微控高技术有限责任公司 | Three-phase intelligent lighting controller |
| CN2600846Y (en) * | 2003-02-27 | 2004-01-21 | 南宁欧顶电气有限责任公司 | Intelligent regulation and control converting station |
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| Publication number | Publication date |
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| CN1571236A (en) | 2005-01-26 |
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Address after: Shop No. 4, science and Technology Industrial Park, hi tech Zone, the Guangxi Zhuang Autonomous Region, Nanning: 530003 Co-patentee after: Nanning Micro Control Technology Co., Ltd. Patentee after: Nanning Euro top Electric Co., Ltd. Address before: Shop No. 4, science and Technology Industrial Park, hi tech Zone, the Guangxi Zhuang Autonomous Region, Nanning: 530003 Co-patentee before: Nanning Micro-Control Hi-Tech. Co., Ltd. Patentee before: Nanning Euro top Electric Co., Ltd. |
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Address after: 530003, the Guangxi Zhuang Autonomous Region 4, Nanning hi tech Zone Industrial Zone, science and Technology Industrial Park Co-patentee after: Guangxi Normsbay Electrical Co., Ltd. Patentee after: Nanning Ouding Electric Co., Ltd. Address before: 530003, the Guangxi Zhuang Autonomous Region 4, Nanning hi tech Zone Industrial Zone, science and Technology Industrial Park Co-patentee before: Nanning Micro Control Technology Co., Ltd. Patentee before: Nanning Ouding Electric Co., Ltd. |
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