CN102097811A - Intelligent composite integrated switch - Google Patents
Intelligent composite integrated switch Download PDFInfo
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- CN102097811A CN102097811A CN2011100327819A CN201110032781A CN102097811A CN 102097811 A CN102097811 A CN 102097811A CN 2011100327819 A CN2011100327819 A CN 2011100327819A CN 201110032781 A CN201110032781 A CN 201110032781A CN 102097811 A CN102097811 A CN 102097811A
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- switch
- composite type
- type integrated
- intelligent composite
- bidirectional triode
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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 invention discloses an intelligent composite integrated switch, which consists of a controller unit, a zero crossing detection circuit and one or more groups of composite switches, wherein the controller unit is provided with a communication interface and a multi-wire direct control interface, and can receive remote control signal input by the communication interface and perform on-off control on any composite switch by the multi-wire direct control interface. The composite switch reduces produced heat by switching fit between a triac and a magnetic hold switch and the optimization of the ON time of the triac, thereby saving a radiation device for the triac, improving the reliability of the composite switch, remarkably reducing the volume of the switch by multi-way integration and realizing the miniaturization of the multi-way control switch.
Description
Technical field
The invention belongs to the switching technique field, the switching capacitance device when being specifically related to a kind of low-voltage power electric network reactive compensation electrification capacitor is a kind of phase-splitting switching function combination switch that is used for the low-voltage circuit terminal compensation.
Background technology
The fling-cut switch of power capacitor mainly adopts solid-state relay and A.C. contactor in traditional reactive power compensator.Electromagnetic switch is when connection or disjunction capacitor, contact vibrations, the starting the arc phenomenon that takes place caused that contact deteriorates, electromagnetic interference and energy loss, make its electrical endurance be lower than mechanical endurance, not only need frequent replacing, and greatly reduce the reactive power compensator reliability of operation.With the electronic power switch device is the main solid-state relay that constitutes, though have contactless break-make, operation frequency height, dynamic switch excellent and the strong advantage of anti-mechanical stress ability, but also there is the cost height, conduction loss is big, anti-electricity, thermal stress ability, when high-power owing to use radiator shortcomings such as volume is big.The problem that another one is more serious is that controllable silicon enters in the operation of power networks can produce harmonic pollution.Solved the contradiction of the two on the NEW TYPE OF COMPOSITE switching theorem, power electronic device is combined with the magnetic maintained switch, having brought into play the power electronic device electric current of make-and-break does not have electric arc, advantage that magnetic maintained switch contact resistance is little, forms little, the capacious capacitive load switch of volume.Yet in the actual motion, still the ubiquity power electronic device is damaged and problem such as magnetic maintained switch contact is bonding.
Summary of the invention
The object of the present invention is to provide a kind of phase-splitting switching intelligent compound switch, it has solved the problem that above-mentioned two kinds of switch elements exist, and is not only safe but also reliable.
For achieving the above object, the solution that the present invention takes is:
A kind of Intelligent Composite type integrated switch, described Intelligent Composite type integrated switch mainly is made up of one or more groups combination switch, controller unit, described each group combination switch comprises a two-way controllable silicon and a magnetic maintained switch, and described bidirectional triode thyristor input and output two ends are attempted by respectively on the input contact and output contact of described magnetic maintained switch; Described one or more groups combination switch cooperates by the switching of described controller unit control bidirectional triode thyristor and magnetic maintained switch, realizes the turn-on and turn-off function; It is characterized in that:
When described combination switch is realized conducting control, connect the magnetic maintained switch again in first time limit behind guide's pass two-way controllable silicon, close bidirectional triode thyristor after second time limit of delaying time;
When described combination switch is realized turn-offing control, disconnect the magnetic maintained switch immediately behind guide's pass two-way controllable silicon, close bidirectional triode thyristor again after the 3rd time limit of delaying time.
Further, be limited to 2 ~ 3 milliseconds of alternating voltage zero-crossing point backs at preferred described first o'clock, described second time limit and the 3rd time limit are 10 ~ 25 milliseconds.
Described Intelligent Composite type integrated switch comprises further that also the magnetic maintained switch drives circuits for triggering, bidirectional triode thyristor drives circuits for triggering, and described controller unit drives the turn-on and turn-off of circuits for triggering, bidirectional triode thyristor driving circuits for triggering driving/control magnetic maintained switch, bidirectional triode thyristor respectively by the magnetic maintained switch.
Described Intelligent Composite type integrated switch also further comprises photoelectric isolating circuit, and described photoelectric isolating circuit is connected described bidirectional triode thyristor and drives between circuits for triggering and the bidirectional triode thyristor.
Further, described Intelligent Composite type integrated switch also comprises the control signal input circuit, and it links to each other with the input of described controller unit, is used to receive the control command of the conducting/shutoff of Intelligent Composite type integrated switch.
Further, described Intelligent Composite type integrated switch also comprises zero cross detection circuit, is used for the zero crossing of detection of grid alternating voltage, and detection signal is inputed to described controller unit.3 ~ 36 combination switch unit of being made up of magnetic maintained switch and bidirectional triode thyristor are carried out integrated encapsulation, by a controller unit (as single-chip microcomputer, DSP) carry out conducting respectively or turn-off control according to the external control instruction, realize the control of single-phase or three-phase equipment.
The core controller that adopts has communication interface and the direct control interface of multiple wire system.The permission peripheral control unit is long-range to carry out break-make control to any one combination switch.
The Intelligent Composite type integrated switch of this practical sexual type, switching by bidirectional triode thyristor and magnetic maintained switch cooperates, and optimization bidirectional triode thyristor ON time reduces the heat of generation, thereby can cancel the heat abstractor of bidirectional triode thyristor, and, realize the microminiaturization of multichannel control switch by the integrated volume that significantly reduces switch of multichannel.Have advantages such as but multichannel is integrated, volume is little, reliability is high, do not generate heat substantially.
Description of drawings
Fig. 1 is a control principle block diagram of the present invention;
Fig. 2 is control timing figure of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with embodiment and accompanying drawing thereof.Referring to Fig. 1, a kind of high reliability Intelligent Composite type integrated switch adopts bidirectional triode thyristor 1 and magnetic maintained switch 2 to form, and forms a plurality of switch control channels, realizes the reliable break-make control of many groups equipment.Conducting when control, connect magnetic maintained switch 2 behind 1 some millisecond of guide's pass two-way controllable silicon, delay time and close bidirectional triode thyristor 1 after 10 ~ 25 milliseconds; When turn-offing control, guide's pass two-way controllable silicon 1 disconnects magnetic maintained switch 2 immediately, delays time and closes bidirectional triode thyristor 1 again after 10 ~ 25 milliseconds.3 ~ 36 combination switch unit are carried out integrated encapsulation,, DSP) carry out conducting respectively or turn-off control, realize the control of single-phase or three-phase equipment according to the external control instruction by a controller unit 3(such as single-chip microcomputer.Switching by bidirectional triode thyristor 1 and magnetic maintained switch 2 cooperates, and optimization bidirectional triode thyristor 1 ON time reduces the heat of generation, thereby can cancel the heat abstractor of bidirectional triode thyristor 1, and, realize the microminiaturization of multichannel control switch by the integrated volume that significantly reduces switch of multichannel.The controller unit 3 that adopts has communication interface and the direct control interface of multiple wire system, by described communication interface, the input of controller unit 3 receiving remotes control control signal, and by the direct control interface connection of described multiple wire system bidirectional triode thyristor driving circuits for triggering 5, magnetic maintained switch driving circuits for triggering 6, the permission peripheral control unit is long-range to carry out break-make control to any one combination switch.What zero cross detection circuit 4 detected is the AC signal of single phase circuit, and the comparison according to voltage comparator two input terminal voltage values becomes square-wave signal with sinusoidal signal, realizes the function of zero passage detection.Detect protective circuit 8, be used for judging faults such as appearance is under-voltage, overvoltage, phase shortage, and realize protection by software.The present invention drops into magnetic maintained switch 2 near 2 ~ 3 milliseconds in alternating voltage zero-crossing point back, and suitably improve the control magnitude of voltage and reduce contact chatter 2 life-spans of magnetic maintained switch are influenced; (1 ~ 2 millisecond of front and back) turn on and off bidirectional triode thyristor 1 near alternating voltage zero-crossing point, reduce voltage stress, reduce the heating of bidirectional triode thyristor 1, improve the reliability of combination switch.
Referring to Fig. 2, during a kind of high reliability Intelligent Composite type integrated switch conducting control, carry out initialization earlier earlier after receiving initiation command, judged whether the conducting order, if connect magnetic maintained switch 2 after 1 some millisecond of conducting bidirectional triode thyristor is arranged then, delay time and close bidirectional triode thyristor 1 after 10 ~ 25 milliseconds; If then judged whether to turn-off order, there is the order of shutoff then to turn-off control, guide's pass two-way controllable silicon 1 disconnects magnetic maintained switch 2 immediately, delays time and closes bidirectional triode thyristor 1 again after 10 ~ 25 milliseconds; If do not turn-off order, then return initial phase.Drop into magnetic maintained switch 2 in alternating voltage zero-crossing point back near 2 ~ 3 milliseconds, and suitably improve the control magnitude of voltage and reduce contact chatter 2 life-spans of magnetic maintained switch are influenced; (1 ~ 2 millisecond of front and back) turn on and off bidirectional triode thyristor 1 near alternating voltage zero-crossing point, reduce voltage stress, reduce bidirectional triode thyristor 1 heating, improve the reliability of combination switch.
High reliability Intelligent Composite type integrated switch, workflow is summarized as follows: when receiving the level signal that produces from higher level's compensating controller, through control signal input circuit 7, signal is sent into controller unit 3, select the zero crossing input according to logic determines, command signal is provided for the circuits for triggering 5 of bidirectional triode thyristor 1, restart bidirectional triode thyristor and drive circuits for triggering 5, make bidirectional triode thyristor 1 conducting, compensation condenser inserts electrical network, and then startup magnetic maintained switch drives circuits for triggering 6 output pulse positive voltages, magnetic maintained switch 2 contacts are changed on input that closure state is shorted to bidirectional triode thyristor 1 and the output two ends by normally open, then, controller unit 3 indication bidirectional triode thyristors drive circuits for triggering 5 and cut out bidirectional triode thyristor 1, and the compensation condenser run duration is just carried out separately by magnetic maintained switch 2; When controller unit 3 receives a certain will cut off the instruction of compensation condenser mutually the time, start bidirectional triode thyristor and drive circuits for triggering 5, bidirectional triode thyristor 1 conducting is incorporated on the magnetic maintained switch 2, and then indication magnetic maintained switch drives circuits for triggering 6 output pulse negative voltages, make magnetic maintained switch 2 contacts be converted to normally open, at last, controller unit 3 indication bidirectional triode thyristors drive the circuits for triggering 5 automatic zero crossings of seeking and cut out bidirectional triode thyristor 1, cut off compensation condenser.Because in the combination switch switching process, mainly to finish by 1 moment of bidirectional triode thyristor, running is undertaken by magnetic maintained switch 2, and the two cooperation is finished, and realizes that substantially non-impact current produces, and no electric arc appearance is not generated heat substantially.
Claims (10)
1. Intelligent Composite type integrated switch, described Intelligent Composite type integrated switch mainly is made up of one or more groups combination switch, controller unit, described each group combination switch comprises a two-way controllable silicon and a magnetic maintained switch, and described bidirectional triode thyristor input and output two ends are attempted by respectively on the input contact and output contact of described magnetic maintained switch; Described one or more groups combination switch cooperates by the switching of described controller unit control bidirectional triode thyristor and magnetic maintained switch, realizes the turn-on and turn-off function; It is characterized in that:
When described combination switch is realized conducting control, connect the magnetic maintained switch again in first time limit behind guide's pass two-way controllable silicon, close bidirectional triode thyristor after second time limit of delaying time;
When described combination switch is realized turn-offing control, disconnect the magnetic maintained switch immediately behind guide's pass two-way controllable silicon, close bidirectional triode thyristor again after the 3rd time limit of delaying time.
2. Intelligent Composite type integrated switch according to claim 1 is characterized in that: described first time limit is preferably 2 ~ 3 milliseconds of alternating voltage zero-crossing point backs, and described second time limit and the 3rd time limit all are preferably 10 ~ 25 milliseconds.
3. Intelligent Composite type integrated switch according to claim 1 and 2, it is characterized in that: described Intelligent Composite type integrated switch comprises further that also the magnetic maintained switch drives circuits for triggering, bidirectional triode thyristor drives circuits for triggering, and described controller unit drives the magnetic maintained switch in circuits for triggering, each group combination switch of bidirectional triode thyristor driving circuits for triggering driving/control, the turn-on and turn-off of bidirectional triode thyristor by the magnetic maintained switch respectively.
4. Intelligent Composite type integrated switch according to claim 3, it is characterized in that: described Intelligent Composite type integrated switch also further comprises photoelectric isolating circuit, and described photoelectric isolating circuit is connected described bidirectional triode thyristor and drives between circuits for triggering and the bidirectional triode thyristor.
5. Intelligent Composite type integrated switch according to claim 1 and 2, it is characterized in that: described Intelligent Composite type integrated switch also further comprises the control signal input circuit, it links to each other with the input of described controller unit, is used to receive the control command of the conducting/shutoff of Intelligent Composite type integrated switch.
6. Intelligent Composite type integrated switch according to claim 1, it is characterized in that: described Intelligent Composite type integrated switch also further comprises zero cross detection circuit, the zero crossing that is used for the detection of grid alternating voltage, and detection signal inputed to described controller unit.
7. Intelligent Composite type integrated switch according to claim 6 is characterized in that: behind the conducting bidirectional triode thyristor, occur connecting the magnetic maintained switch in 2 ~ 3 milliseconds of the alternating voltage zero-crossing point backs; Before and after alternating voltage zero-crossing point, turn on and off bidirectional triode thyristor in 1 ~ 2 millisecond.
8. Intelligent Composite type integrated switch according to claim 1 and 2 is characterized in that: described controller unit is single-chip microcomputer or DSP.
9. Intelligent Composite type integrated switch according to claim 8, it is characterized in that: 3 ~ 36 combination switch unit are carried out integrated encapsulation, carry out conducting respectively or turn-off control according to the external control instruction by controller unit, realize the control of single-phase or three-phase equipment.
10. Intelligent Composite type integrated switch according to claim 9 is characterized in that: described Intelligent Composite type integrated switch is used for the input of reactive power compensator power capacitor and withdraws from control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100327819A CN102097811A (en) | 2011-01-30 | 2011-01-30 | Intelligent composite integrated switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100327819A CN102097811A (en) | 2011-01-30 | 2011-01-30 | Intelligent composite integrated switch |
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| CN102097811A true CN102097811A (en) | 2011-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038781Y (en) * | 2007-03-27 | 2008-03-19 | 蒋少庆 | Three-phase split-supplement type composite switch |
| CN101340097A (en) * | 2008-05-17 | 2009-01-07 | 曾卫民 | Intelligent modularized reactive compensator |
| CN101820173A (en) * | 2010-04-15 | 2010-09-01 | 佛山市顺德区胜业电力能源技术有限公司 | Intelligent power capacitor synchronous fling-cut switch |
| CN201656487U (en) * | 2010-04-13 | 2010-11-24 | 成都星宇节能技术股份有限公司 | Intelligent capacitor |
-
2011
- 2011-01-30 CN CN2011100327819A patent/CN102097811A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038781Y (en) * | 2007-03-27 | 2008-03-19 | 蒋少庆 | Three-phase split-supplement type composite switch |
| CN101340097A (en) * | 2008-05-17 | 2009-01-07 | 曾卫民 | Intelligent modularized reactive compensator |
| CN201656487U (en) * | 2010-04-13 | 2010-11-24 | 成都星宇节能技术股份有限公司 | Intelligent capacitor |
| CN101820173A (en) * | 2010-04-15 | 2010-09-01 | 佛山市顺德区胜业电力能源技术有限公司 | Intelligent power capacitor synchronous fling-cut switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Application publication date: 20110615 |
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