CN201160036Y - Low-power consumption intelligent zero crossing throwing and cutting controller - Google Patents
Low-power consumption intelligent zero crossing throwing and cutting controller Download PDFInfo
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- CN201160036Y CN201160036Y CNU2007200385813U CN200720038581U CN201160036Y CN 201160036 Y CN201160036 Y CN 201160036Y CN U2007200385813 U CNU2007200385813 U CN U2007200385813U CN 200720038581 U CN200720038581 U CN 200720038581U CN 201160036 Y CN201160036 Y CN 201160036Y
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- chip microcomputer
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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 utility model discloses a low power consumption intelligent type zero crossing switching controller, which comprises an action controlling circuit of the controller, a single-chip microcomputer processing circuit, a stabilized voltage power supply circuit, a silicon- controlled trigger circuit, a relay controlling circuit, a parallel circuit of the controlled silicon and relay, a zero crossing point detecting circuit, an operating state indicating circuit, wherein the controlled silicon in the parallel circuit of the controlled silicon and relay is connected with a magnetic latching relay in parallel, when switching is performed, the controlled silicon is triggered through zero crossing firstly, and after stabilization, the magnetic latching relay is absorbed and conducted. The low power consumption intelligent type zero crossing switching controller has the advantages that the low power consumption intelligent style zero crossing fling-cut controller adopts the single-chip microcomputer with low power consumption and high performance to realize the full digitalization intelligent control, after the device receives an external control signal, and can automatically searches for the optimum injection (excision) point through logical judgment, therefore, the zero crossing switching is ensured, the inrush current does not occur, the contact is not sintered, the energy consumption is low, the harmonic wave is not generated, and simultaneously, the low power consumption intelligent type zero crossing switching controller has the functions of open-phase protection and operation indication, etc.
Description
Technical field
The utility model relates to a kind of controller, in particular for the low power-consumption intelligent type operating passing zero controller of occasions such as the break-make control that exchanges reactive-load compensation capacitor and the control of AC power break-make.
Background technology
In industry, enterprise's electric power system, because most power consumption equipments all belong to inductive load, these power consumption equipments except from electric power system is taken active power, are also taken a considerable amount of reactive powers when operation.Idle impact load also often appears in some production equipment (as milling train, arc furnace etc.) in process of production, and this impact load may increase 5～6 times than the reactive power of normally taking.Know that from Circuit theory the increase of reactive power reduces the power factor of electric power system.The reduction of power factor will cause: power loss increases in the electrical network loop; The loss of voltage increases in the electrical network loop; The power supply capacity of power supply unit descends, and the cost of electric energy increases.Power factor improves in order to reward enterprise in the People's Republic of China (PRC), when collecting charges for electricity by two electricity price systems, has stipulated to adjust according to the height of enterprise's power factor the additional system of rewards and penalties of the volume that collects charges for electricity.According to this system, the monthly average power factor is higher than the enterprise of setting, can by how many correspondingly reduction of income electricity charge that surpass, and when power factor is lower than setting, then increase income the electricity charge.Stipulate that clearly power factor is lower than at 0.7 o'clock in " whole nation is for the electricity consumption rule ", power administration can power.Thereby enterprise all must consider the measure of compensating power no matter from saving the electricity charge, improving power supply quality still from improving the power supply capacity of power supply unit, and the method for shunt capacitor realizes in electrical network and the compensation of reactive power is adopted usually.And the switching of capacitor mainly adopts the controllable silicon switching or adopts the A.C. contactor switching usually, bigger during capacitor switching owing to shoving, though can throw at zero crossing, but controllable silicon needs bigger area of dissipation, volume is bigger, and adopt A.C. contactor switching volume less, but can not guarantee at the zero crossing switching the easy sintering in contact.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can be at zero crossing switched capacitor or ac power switch, when reaching switch on-off no-flashy-flow, contact not sintering, volume is little, energy consumption is little, do not introduce the low power-consumption intelligent type operating passing zero controller of transient state and harmonic wave.
For solving the problems of the technologies described above, the technical solution of the utility model is, a kind of low power-consumption intelligent type operating passing zero controller, comprise the controller action control circuit, the single-chip microcomputer treatment circuit, voltage-stabilized power supply circuit, thyristor gating circuit, control relay circuit, controllable silicon and relay parallel circuits, zero-crossing detection circuit, the operating state indicating circuit, the controller action control circuit is electrically connected with the single-chip microcomputer treatment circuit, the single-chip microcomputer treatment circuit is electrically connected with voltage-stabilized power supply circuit, the single-chip microcomputer treatment circuit is electrically connected with the operating state indicating circuit, the single-chip microcomputer treatment circuit is electrically connected with thyristor gating circuit, the single-chip microcomputer treatment circuit is electrically connected with control relay circuit, controllable silicon and relay parallel circuits are electrically connected with thyristor gating circuit, control relay circuit is electrically connected with controllable silicon and relay parallel circuits, controllable silicon and relay parallel circuits are electrically connected with zero-crossing detection circuit, zero-crossing detection circuit is electrically connected with the single-chip microcomputer treatment circuit, controllable silicon and magnetic latching relay in controllable silicon and the relay parallel circuits also connects, during switching with controllable silicon elder generation zero cross fired, stable after again with magnetic latching relay adhesive conducting.
Zero-crossing detection circuit changes into square-wave signal by photoelectric coupled circuit with the sine wave signal of switch ends, deliver to the single-chip microcomputer treatment circuit and carry out the zero crossing detection, so that receive the switch closure control command in the zero crossing closure at controller, optical coupling isolation circuit also has the effect of forceful electric power and light current isolation, this circuit also has the detection of phase shortage information, this moment, this road did not have signal to send when this way switch phase shortage, so can judge whether this road is phase shortage according to whether having signal to send out.Thyristor gating circuit adopts pulse transformer T to realize; be mainly used in the bidirectional triode thyristor circuit is controlled; control relay circuit is mainly used in relay circuit and controls; the two ends that the controllable silicon rc protection circuit is connected in parallel on bidirectional triode thyristor are used to protect controllable silicon; simultaneously again as collection effect to switch alternating voltage waveform signal; ghyristor circuit and relay circuit are connected in parallel; ghyristor circuit mainly plays booster action; because the controllable silicon response speed is fast; and the relay response speed is slow; so during switch closure earlier closed controllable silicon then in a few tens of milliseconds or several seconds kind again with relay or contactor closure; can guarantee switch like this at the zero crossing switching, the controllable silicon both end voltage is that zero controllable silicon at this moment automatically shuts down behind the switch closure.Voltage-stabilized power supply circuit mainly provides power supply to controller.The operating state indicating circuit is used for the operating state of indicating circuit.The controller action control circuit is made up of photoelectric isolating circuit and is mainly used in reception from the external control order, when the needs switch motion (closed or disconnection), external circuit sends pulse signal to controller, isolates by photoelectricity and delivers to single-chip microcomputer, controls so that split to close.
The utlity model has positive effect: in (1) low power-consumption intelligent type of the present utility model operating passing zero controller, controllable silicon is selected BTA series for use, relay is selected magnetic latching relay for use, relay coil operating voltage DC12V, contact current 5-100A, owing to adopt controllable silicon use in parallel with magnetic latching relay, the closed controllable silicon of elder generation when closed, and then closed magnetic latching relay, controller can be from motion tracking zero point, can guarantee like this at the zero crossing fling-cut switch, the zero crossing fling-cut switch can not produce transient state and harmonic wave, the contact can sintering, owing to do not need to keep voltage after the magnetic latching relay work, adopts magnetic latching relay to have purpose of energy saving again.(2) low power-consumption intelligent type operating passing zero controller of the present utility model adopts the function of Based Intelligent Control and state that can memory switch (closed still disconnect), when the unexpected dead electricity of system, controller disconnects relay earlier and disconnects controllable silicon again, promptly guarantee to disconnect, can recover original state automatically when electric when system gets at zero crossing.(3) low power-consumption intelligent type operating passing zero controller of the present utility model, can one group, two groups, three groups or more groups be used in combination, the capacitor switching device that can be used as power factor compensation uses, can divide benefit (both the power factor of a phase or two-phase electrical network compensated) during use or mend (both simultaneously the electrical network three-phase activity coefficient being compensated) altogether, also can be used as single phase alternating current (A.C.) contactor or three-phase ac contactor and use.
Description of drawings
Fig. 1 is the overall construction drawing of embodiment 1.
Fig. 2 is the schematic diagram as regular tap control of embodiment 1.
Fig. 3 is the schematic diagram as capacitor switching control of embodiment 1.
Embodiment
Embodiment 1
See Fig. 1, the low power-consumption intelligent type operating passing zero controller of present embodiment, comprise controller action control circuit 1, single-chip microcomputer treatment circuit 2, voltage-stabilized power supply circuit 3, thyristor gating circuit 4, control relay circuit 5, controllable silicon and relay parallel circuits 6, zero-crossing detection circuit 7, operating state indicating circuit 8, controller action control circuit 1 is electrically connected with single-chip microcomputer treatment circuit 2, single-chip microcomputer treatment circuit 2 is electrically connected with voltage-stabilized power supply circuit 3, single-chip microcomputer treatment circuit 2 is electrically connected with operating state indicating circuit 8, single-chip microcomputer treatment circuit 2 is electrically connected with thyristor gating circuit 4, single-chip microcomputer treatment circuit 2 is electrically connected with control relay circuit 5, controllable silicon and relay parallel circuits 6 are electrically connected with thyristor gating circuit 4, control relay circuit 5 is electrically connected with controllable silicon and relay parallel circuits 6, controllable silicon and relay parallel circuits 6 are electrically connected with zero-crossing detection circuit 7, zero-crossing detection circuit 7 is electrically connected with single-chip microcomputer treatment circuit 2, controllable silicon and magnetic latching relay in controllable silicon and the relay parallel circuits 6 also connects, during switching with controllable silicon elder generation zero cross fired, stable after again with magnetic latching relay adhesive conducting.Mainly having or not with the zero crossing of the AC signal of working power of the AC signal by the acquisition controller working power judged for the disabling controller signal of telecommunication and switch cut-off signal.
Its switching control that can be used for regular tap of this controller as shown in Figure 2, the capacitor switching control during capacitance compensation is as shown in Figure 3 when improving power factor also to can be used as electrical network.
Thyristor gating circuit 4 among Fig. 2 or Fig. 3 adopts pulse transformer T to realize; come the IN frequency signal of self-oscillating circuit the bidirectional triode thyristor circuit to be controlled by pulse transformer T generation pulse signal; D1 among Fig. 2 or Fig. 3 is a bidirectional triode thyristor; control relay circuit 5 is mainly used in to be controlled relay circuit; K0 is a relay among Fig. 2 or Fig. 3; R1 among Fig. 2 or Fig. 3 and C1 are connected in parallel on the two ends of bidirectional triode thyristor D1 for the controllable silicon rc protection circuit; be used to protect controllable silicon; simultaneously again as collection effect to switch alternating voltage waveform signal; ghyristor circuit and relay circuit are connected in parallel; ghyristor circuit mainly plays booster action; because the controllable silicon response speed is fast; and the relay response speed is slow; so during switch closure earlier closed controllable silicon then in a few tens of milliseconds or several seconds kind again with relay closes; can guarantee switch like this at the zero crossing switching, the controllable silicon both end voltage is that zero controllable silicon at this moment automatically shuts down behind the switch closure.IC1 is the optocoupler of zero crossing collection usefulness among Fig. 2 or Fig. 3, and its cardinal principle is sine wave signal to be changed into square-wave signal deliver to single-chip microcomputer, and single-chip microcomputer can adopt 51 series, AVR series or other intelligent chips, and optocoupler plays buffer action again simultaneously.Certainly the zero crossing collection also can realize by rectification circuit.Voltage-stabilized power supply circuit 3 mainly provides power supply to controller.Operating state indicating circuit 8 is used for the operating state of indicating circuit.Controller action control circuit 1 is made up of photoelectric isolating circuit and is mainly used in reception from the external control order, when the needs switch motion (closed or disconnection), external circuit sends pulse signal to controller, deliver to single-chip microcomputer treatment circuit 2 by the photoelectricity isolation, split to close and control, R0 among Fig. 2 or Fig. 3, R2, R3 are current-limiting resistance, D2 among Fig. 2 or Fig. 3 is a rectifier diode, C0 among Fig. 3 is external building-out capacitor, E3 among Fig. 2 or Fig. 3, E4 are two binding posts that connect power supply, the V among Fig. 2 or Fig. 3
CCDC power supply for the optocoupler waveform transformation.
In a word, the utility model has the advantages that employing Low Power High Performance chip microcontroller total digitalization intelligence Can control, after device is received external control signal, judge by logic, Automatic-searching is best to be dropped into (excision) point guarantees operating passing zero, no-flashy-flow, contact not sintering, energy consumption little, do not produce harmonic wave, Have simultaneously the functions such as open-phase protection, operation indication.
Claims (5)
1, a kind of low power-consumption intelligent type operating passing zero controller, it is characterized in that, comprise controller action control circuit (1), single-chip microcomputer treatment circuit (2), voltage-stabilized power supply circuit (3), thyristor gating circuit (4), control relay circuit (5), controllable silicon and relay parallel circuits (6), zero-crossing detection circuit (7), operating state indicating circuit (8), controller action control circuit (1) is electrically connected with single-chip microcomputer treatment circuit (2), single-chip microcomputer treatment circuit (2) is electrically connected with voltage-stabilized power supply circuit (3), single-chip microcomputer treatment circuit (2) is electrically connected with operating state indicating circuit (8), single-chip microcomputer treatment circuit (2) is electrically connected with thyristor gating circuit (4), single-chip microcomputer treatment circuit (2) is electrically connected with control relay circuit (5), controllable silicon and relay parallel circuits (6) are electrically connected with thyristor gating circuit (4), control relay circuit (5) is electrically connected with controllable silicon and relay parallel circuits (6), controllable silicon and relay parallel circuits (6) are electrically connected with zero-crossing detection circuit (7), zero-crossing detection circuit (7) is electrically connected with single-chip microcomputer treatment circuit (2), controllable silicon and magnetic latching relay in controllable silicon and the relay parallel circuits (6) also connects, during switching with controllable silicon elder generation zero cross fired, stable after again with magnetic latching relay adhesive conducting.
2, low power-consumption intelligent type operating passing zero controller as claimed in claim 1 is characterized in that, controllable silicon adopts pulse transformer to trigger.
3, low power-consumption intelligent type operating passing zero controller as claimed in claim 1, it is characterized in that, controllable silicon and relay can one or more groups be used, and one group is used for single-phase switch or single-phase capacitance switching and divides and mend control, and three groups can be used for threephase switch or the three phase capacitance switching is mended control altogether.
4, low power-consumption intelligent type operating passing zero controller as claimed in claim 1 is characterized in that single-chip microcomputer can adopt 51 series or AVR series.
5, low power-consumption intelligent type operating passing zero controller as claimed in claim 1 is characterized in that, the collection of crossover point signal adopts photoelectric coupled device to realize, also can realize by rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200385813U CN201160036Y (en) | 2007-07-12 | 2007-07-12 | Low-power consumption intelligent zero crossing throwing and cutting controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200385813U CN201160036Y (en) | 2007-07-12 | 2007-07-12 | Low-power consumption intelligent zero crossing throwing and cutting controller |
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| CN201160036Y true CN201160036Y (en) | 2008-12-03 |
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| CNU2007200385813U Expired - Fee Related CN201160036Y (en) | 2007-07-12 | 2007-07-12 | Low-power consumption intelligent zero crossing throwing and cutting controller |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976994A (en) * | 2010-09-17 | 2011-02-16 | 三一重工股份有限公司 | Conversion circuit, method and system for detecting phase sequence of three-phase power supply, and motor |
| CN101577192B (en) * | 2009-06-12 | 2011-05-04 | 百利通电子(上海)有限公司 | Method of zero passage switch of electromagnetic relay and circuit |
| CN104678860A (en) * | 2015-02-11 | 2015-06-03 | 哈尔滨工业大学 | CPLD-based protection relay in AC and open-phase protection system |
| CN105005639A (en) * | 2015-06-18 | 2015-10-28 | 河海大学 | MATLAB model capable of simulating actual characteristics of thyristor and construction method |
| CN104423277B (en) * | 2013-08-23 | 2017-05-10 | 赛恩倍吉科技顾问（深圳）有限公司 | Power supply control system and method |
| CN110448168A (en) * | 2019-08-29 | 2019-11-15 | 九阳股份有限公司 | A kind of method for heating and controlling of boiling water pot |
-
2007
- 2007-07-12 CN CNU2007200385813U patent/CN201160036Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101577192B (en) * | 2009-06-12 | 2011-05-04 | 百利通电子(上海)有限公司 | Method of zero passage switch of electromagnetic relay and circuit |
| CN101976994A (en) * | 2010-09-17 | 2011-02-16 | 三一重工股份有限公司 | Conversion circuit, method and system for detecting phase sequence of three-phase power supply, and motor |
| CN104423277B (en) * | 2013-08-23 | 2017-05-10 | 赛恩倍吉科技顾问（深圳）有限公司 | Power supply control system and method |
| CN104678860A (en) * | 2015-02-11 | 2015-06-03 | 哈尔滨工业大学 | CPLD-based protection relay in AC and open-phase protection system |
| CN104678860B (en) * | 2015-02-11 | 2017-05-24 | 哈尔滨工业大学 | CPLD-based protection relay in AC and open-phase protection system |
| CN105005639A (en) * | 2015-06-18 | 2015-10-28 | 河海大学 | MATLAB model capable of simulating actual characteristics of thyristor and construction method |
| CN105005639B (en) * | 2015-06-18 | 2018-01-02 | 河海大学 | The MATLAB models and construction method of IGCT actual characteristic can be emulated |
| CN110448168A (en) * | 2019-08-29 | 2019-11-15 | 九阳股份有限公司 | A kind of method for heating and controlling of boiling water pot |
| CN110448168B (en) * | 2019-08-29 | 2021-09-10 | 九阳股份有限公司 | Heating control method of water boiler |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081203 Termination date: 20110712 |