CN106300376A - No-flashy-flow switching device and control method thereof - Google Patents
No-flashy-flow switching device and control method thereof Download PDFInfo
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- CN106300376A CN106300376A CN201610551887.2A CN201610551887A CN106300376A CN 106300376 A CN106300376 A CN 106300376A CN 201610551887 A CN201610551887 A CN 201610551887A CN 106300376 A CN106300376 A CN 106300376A
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- unidirectional thyristor
- control unit
- mechanical switch
- flashy
- switching device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Electronic Switches (AREA)
- Emergency Protection Circuit Devices (AREA)
- Keying Circuit Devices (AREA)
Abstract
nullNo-flashy-flow switching device of the present invention and control method thereof belong to electricity field，A kind of applicable no-flashy-flow switching device to capacitive load switchings such as electric capacity and control method thereof，A kind of no-flashy-flow switching device，Including a mechanical switch，Also include the first unidirectional thyristor、Second unidirectional thyristor、One control unit、One current limiting element，Described first unidirectional thyristor and described current limiting element are in series series circuit，Described series circuit is in parallel with described second unidirectional thyristor，Described mechanical switch major loop two ends are in parallel with described second unidirectional thyristor，Described control unit is connected with the control end of described mechanical switch，Described control unit and described first unidirectional thyristor、Described second unidirectional thyristor connects，Described control unit prestores parameter movement time of described mechanical switch，It is short that the present invention has the turn on thyristors time、Overload capacity is strong、Cost performance is high、Mechanical switch electric life is long、The advantage that reliability is high.
Description
Technical field
No-flashy-flow switching device of the present invention and control method thereof belong to electricity field, and electric capacity etc. is held by particularly a kind of being suitable for
Property load carry out no-flashy-flow switching device and the control method thereof of switching.
Background technology
At present in electric control system, be widely used the no-flashy-flow switching devices such as combination switch to electric capacitor and other
Load carry out connect disjunction control, its use two unidirectional thyristor reverse parallel connections again with mechanical switch (magnetic latching relay etc.
Electromagnetic switch) in parallel, during connecting, control unit first controls two unidirectional thyristor zero passages before mechanical switch closes and leads
Logical, then control mechanical switch Guan Bi.Existing combination switch has the disadvantage in that
1. due to capacitive load its easily exist short circuit, puncture, spontaneous recovery situation, in the case of not having series reactance produce electricity
Greatly, IGCT is the most limited as itself overload capacity of semiconductor device, easy punch through damage for stream.
2. the turn on thyristors time is long, and power utilization is low, cost performance is low, overload capacity is poor, easy punch through damage.
Due to above reason, the current rated current of combination switch can only accomplish tens amperes, poor reliability simultaneously.
Summary of the invention
Present invention aims to the weak point of the no-flashy-flow switching devices such as existing combination switch and provide a kind of
There is the no-flashy-flow that the turn on thyristors time is short, overload capacity is strong, cost performance is high, mechanical switch electric life length, reliability are high throw
Cutting apparatus and control method thereof.
Realize it is an object of the invention to reach by the following technical programs:
A kind of no-flashy-flow switching device, including a mechanical switch, also includes the first unidirectional thyristor, the second unidirectional brilliant lock
Pipe, a control unit, a current limiting element, described first unidirectional thyristor and described current limiting element be in series series circuit, institute
State series circuit in parallel with described second unidirectional thyristor, described mechanical switch major loop two ends and described second unidirectional thyristor
Parallel connection, described control unit is connected with the control end of described mechanical switch, described control unit and described first unidirectional thyristor,
Described second unidirectional thyristor connects, and described control unit prestores parameter movement time of described mechanical switch.
A kind of no-flashy-flow switching device, during connecting, described control unit controls described mechanical switch described the
To next current zero interval Guan Bi after one unidirectional thyristor passing zero trigger.
A kind of no-flashy-flow switching device, during connecting, described control unit is at the sun of described first unidirectional thyristor
Extremely to the negative electrode of described first unidirectional thyristor for nagative potential time described first unidirectional thyristor conductivity control signal is provided.
A kind of no-flashy-flow switching device, in breaking course, described control unit controls described mechanical switch described the
The anode of one unidirectional thyristor to after the peak value that negative electrode is positive potential of described first unidirectional thyristor to second current zero
Interval disjunction.
A kind of no-flashy-flow switching device, in breaking course, described control unit controls described mechanical switch described the
The disjunction when anode of two unidirectional thyristors is positive potential to the negative electrode of described second unidirectional thyristor.
A kind of no-flashy-flow switching device, described current limiting element is a current-limiting resistance.
A kind of no-flashy-flow switching device, described current-limiting resistance is a resistance wire.
A kind of no-flashy-flow switching device, described mechanical switch is an electromagnetic switch, and the control end of described mechanical switch is institute
State the control coil of electromagnetic switch.
A kind of control method of no-flashy-flow switching device in accordance with the above, during connecting, described control unit
First controlling described first unidirectional thyristor passing zero trigger, described control unit controls described mechanical switch at described first unidirectional crystalline substance
To next current zero interval Guan Bi after brake tube conducting, in breaking course, described control unit controls described mechanical switch
To second after the anode of the described first unidirectional thyristor peak value that negative electrode is positive potential to described first unidirectional thyristor
The disjunction of current zero interval.
A kind of control method of no-flashy-flow switching device in accordance with the above, during connecting, described control unit
The anode of described first unidirectional thyristor to the negative electrode of described first unidirectional thyristor for providing described first during for nagative potential
Unidirectional thyristor conductivity control signal, described control unit controls described mechanical switch after described first unidirectional thyristor conducting
To next current zero interval Guan Bi, in breaking course, described control unit controls described mechanical switch described second
The disjunction when anode of unidirectional thyristor is positive potential to the negative electrode of described second unidirectional thyristor.
Its operation principle:
During connecting, control unit is negative at the anode of the first unidirectional thyristor to the negative electrode of the first unidirectional thyristor
The first unidirectional thyristor conductivity control signal is provided, when the anode of the first unidirectional thyristor is to the first unidirectional thyristor during current potential
During negative electrode zero passage forward bias, the first unidirectional thyristor no-flashy-flow conducting, control unit controls mechanical switch at the first unidirectional crystalline substance
To next current zero interval Guan Bi after brake tube passing zero trigger, reduce the ON time of the first unidirectional thyristor and pass through current limliting
The element current time；
In breaking course, control unit controls the mechanical switch anode at the first unidirectional thyristor to the first unidirectional brilliant lock
The negative electrode of pipe be positive potential peak value after to second current zero interval disjunction, reduce current limiting element and mechanical switch arc extinguishing imitated
The impact of fruit.Note: when control unit controls the mechanical switch anode at the second unidirectional thyristor the moon to the second unidirectional thyristor
Extremely disjunction during positive potential is (after the anode of the first unidirectional thyristor is to the peak value that negative electrode is positive potential of the first unidirectional thyristor
First current zero is to second current zero interval disjunction), mechanical switch disjunction arc quenching effect would not be by current limliting unit
Part affects.
No-flashy-flow switching device of the present invention, has that the turn on thyristors time is short, overload capacity is strong, cost performance is high, mechanical opens
Pass electric life length, the advantage that reliability is high.
Accompanying drawing explanation
Fig. 1 is embodiment one circuit theory diagrams of no-flashy-flow switching device of the present invention.
Detailed description of the invention
The embodiment one of no-flashy-flow switching device of the present invention, as shown in Figure 1:
A kind of no-flashy-flow switching device, including a mechanical switch K1, (being an electromagnetic switch, it controls end is electromagnetic switch
Control coil, it is also possible to for other mechanical switch), also include the first unidirectional thyristor SCR1, the second unidirectional thyristor SCR2, control
Unit processed (A), current limiting element R1 (being a current-limiting resistance), the first unidirectional thyristor SCR1 is in series with current limiting element R1 and connects
Circuit, series circuit and the second unidirectional thyristor SCR2 are in parallel, mechanical switch K1 major loop two ends and the second unidirectional thyristor
SCR2 is in parallel, and control unit (A) is connected with the control end of mechanical switch K1, control unit (A) and the first unidirectional thyristor SCR1,
Second unidirectional thyristor SCR2 connects, and control unit (A) prestores parameter movement time of mechanical switch K1.
Operation principle:
During connecting, control unit (A) at the anode of the first unidirectional thyristor SCR1 to the first unidirectional thyristor
There is provided the first unidirectional thyristor SCR1 conductivity control signal (can greatly reduce capacitive load when the negative electrode of SCR1 is for nagative potential
During connection, the load current impact to the first unidirectional thyristor SCR1), when the anode of the first unidirectional thyristor SCR1 is single to first
When the negative electrode zero passage forward bias of IGCT SCR1, the first unidirectional thyristor SCR1 no-flashy-flow conducting, the power supply of input passes through
Electric capacity C1 no-flashy-flow is connected by J1 end, current limiting element R1, first unidirectional thyristor SCR1, J2 end, and control unit (A) controls machinery
Switch K1 to next current zero interval Guan Bi, reduces by the first unidirectional brilliant lock after the first unidirectional thyristor SCR1 passing zero trigger
The ON time of pipe SCR1 and by current limiting element R1 current time；
In breaking course, control unit (A) controls the mechanical switch K1 anode at the first unidirectional thyristor SCR1 to the
To second electricity after the peak value that negative electrode is positive potential (i.e. by the peak value of mechanical switch K1 electric current) of one unidirectional thyristor SCR1
Stream zero point interval disjunction, reduces the current limiting element R1 impact on mechanical switch K1 arc quenching effect.Note: when control unit (A) controls
Mechanical switch K1 disjunction when the anode of the second unidirectional thyristor SCR2 is positive potential to the negative electrode of the second unidirectional thyristor SCR2
(peak value that negative electrode is positive potential of the first unidirectional thyristor SCR1 (is i.e. passed through machine by the anode of the i.e. first unidirectional thyristor SCR1
The peak value of tool switch K1 electric current) rear first current zero be to second current zero interval disjunction, it is ensured that the second unidirectional brilliant lock
Pipe SCR2 energy forward conduction, the second unidirectional thyristor SCR2 conductivity control signal can be provided by control unit, it is also possible to by machine
During tool switch K1 disjunction, mechanical switch K1 two ends potential difference drive conducting), reach the mechanical switch K1 mesh without electric arc disjunction
, mechanical switch K1 disjunction arc quenching effect would not be affected by current limiting element R1.
The J3 port of above example Fig. 1 is as power supply and controls multiplexing, and in actual applications, J3 end can be as control
Port, control unit (A) separately connects a working power.Above example is for convenience of describing operation principle of the present invention, with single-pole switch
It is described, when three-phase electricity uses, as long as increasing the relevant component numbers such as mechanical switch K1, unidirectional thyristor accordingly i.e.
Can, control unit (A) can share.Operation principle is identical, still belongs to the scope of the claims of the present invention.
Above example has the advantage that
1. the first unidirectional thyristor SCR1 has connected current limiting element R1, overcomes capacitive load puncture short, self-healing procedure
Impact to IGCT, its short circuit current can be limited by current limiting element R1.
2. control unit (A) prestores parameter movement time of mechanical switch K1, can greatly reduce current limiting element R1 and
First unidirectional thyristor SCR1, the second unidirectional thyristor SCR2 working time by electric current, improve its overload power, significantly subtract
Low current limiting element R1, the first unidirectional thyristor SCR1, the power requirement of the second unidirectional thyristor SCR2, current limiting element R1 can be straight
Connecing and use a resistance wire, cost performance is high.
3. process of connecting is turned on by the first unidirectional thyristor SCR1 no-flashy-flow, and breaking course is by the second unidirectional thyristor SCR2
Conducting arc extinguishing, overcomes the voltage drop that current limiting element R1 brings, the impact arc quenching effect to mechanical switch K1, mechanical switch K1 electricity
Life-span is long.
A kind of control method to no-flashy-flow switching device of the present invention, is shown in Fig. 1, and during connecting, control unit (A) is first
Controlling the first unidirectional thyristor SCR1 passing zero trigger, control unit (A) controls mechanical switch K1 at the first unidirectional thyristor SCR1
To next current zero interval Guan Bi after conducting, for reducing by the first unidirectional thyristor SCR1 ON time, improve its overload
Power, in breaking course, it is unidirectional to first at the anode of the first unidirectional thyristor SCR1 that control unit (A) controls mechanical switch K1
The negative electrode of IGCT SCR1 be positive potential the peak value peak value of mechanical switch K1 electric current (i.e. by) after to second current zero
Interval disjunction, reduces the current limiting element R1 impact on mechanical switch K1 arc quenching effect.
A kind of control method to no-flashy-flow switching device of the present invention, is shown in Fig. 1, and during connecting, control unit (A) exists
The anode of the first unidirectional thyristor SCR1 to the negative electrode of the first unidirectional thyristor SCR1 for providing the first unidirectional crystalline substance during for nagative potential
Brake tube SCR1 conductivity control signal, is used for reducing load current when capacitive load is connected and impacts the first unidirectional thyristor SCR1,
When the anode of the first unidirectional thyristor SCR1 is to the negative electrode zero passage forward bias of the first unidirectional thyristor SCR1, the first unidirectional crystalline substance
Brake tube SCR1 no-flashy-flow turns on, and control unit (A) controls mechanical switch K1 after the first unidirectional thyristor SCR1 conducting to next
Individual current zero interval closes, and for reducing by the first unidirectional thyristor SCR1 ON time, improves its overload power, at breaking course
In, control unit (A) controls the mechanical switch K1 anode at the second unidirectional thyristor SCR2 to the second unidirectional thyristor SCR2's
Disjunction when negative electrode is positive potential, overcomes the current limiting element R1 impact on mechanical switch K1 arc quenching effect.
Claims (10)
1. a no-flashy-flow switching device, including a mechanical switch, is characterized in that: also include the first unidirectional thyristor, the second list
To IGCT, a control unit, a current limiting element, described first unidirectional thyristor and described current limiting element are in series series electrical
Road, described series circuit is in parallel with described second unidirectional thyristor, and described mechanical switch major loop two ends are second unidirectional with described
IGCT is in parallel, and described control unit is connected with the control end of described mechanical switch, and described control unit is first unidirectional with described
IGCT, described second unidirectional thyristor connect, and described control unit prestores parameter movement time of described mechanical switch.
No-flashy-flow switching device the most according to claim 1, is characterized in that: during connecting, described control unit control
Make described mechanical switch after described first unidirectional thyristor passing zero trigger to next current zero interval Guan Bi.
No-flashy-flow switching device the most according to claim 2, is characterized in that: during connecting, described control unit exists
The anode of described first unidirectional thyristor to the negative electrode of described first unidirectional thyristor for nagative potential time provide described first unidirectional
Turn on thyristors control signal.
No-flashy-flow switching device the most according to claim 2, is characterized in that: in breaking course, described control unit control
Making the described mechanical switch anode at described first unidirectional thyristor is positive potential to the negative electrode of described first unidirectional thyristor
To second current zero interval disjunction after peak value.
No-flashy-flow switching device the most according to claim 4, is characterized in that: in breaking course, described control unit control
Make described mechanical switch when the anode of described second unidirectional thyristor is positive potential to the negative electrode of described second unidirectional thyristor
Disjunction.
No-flashy-flow switching device the most according to claim 1, is characterized in that: described current limiting element is a current-limiting resistance.
No-flashy-flow switching device the most according to claim 6, is characterized in that: described current-limiting resistance is a resistance wire.
No-flashy-flow switching device the most according to claim 1, is characterized in that: described mechanical switch is an electromagnetic switch, institute
That states mechanical switch controls the control coil that end is described electromagnetic switch.
9. according to the control method of the no-flashy-flow switching device described in any one of claim 1 to 8, it is characterized in that: connecting
Cheng Zhong, described control unit first controls described first unidirectional thyristor passing zero trigger, and described control unit controls described machinery and opens
Pass is to next current zero interval Guan Bi after described first unidirectional thyristor conducting, and in breaking course, described control is single
It is positive electricity to the negative electrode of described first unidirectional thyristor that unit controls the described mechanical switch anode at described first unidirectional thyristor
To second current zero interval disjunction after the peak value of position.
The control method of no-flashy-flow switching device the most according to claim 9, is characterized in that: during connecting, described
Control unit is to provide during for nagative potential at the anode of described first unidirectional thyristor to the negative electrode of described first unidirectional thyristor
Described first unidirectional thyristor conductivity control signal, described control unit controls described mechanical switch at described first unidirectional brilliant lock
To next current zero interval Guan Bi after pipe conducting, in breaking course, described control unit controls described mechanical switch and exists
The disjunction when anode of described second unidirectional thyristor is positive potential to the negative electrode of described second unidirectional thyristor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2016/092015 WO2017016501A1 (en) | 2015-07-29 | 2016-07-28 | Inrush-current free switching device and control method thereof |
| US15/686,681 US10236682B2 (en) | 2015-02-27 | 2017-08-25 | Inrush current free switching apparatus and control method thereof |
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510476784X | 2015-07-29 | ||
| CN201510476784 | 2015-07-29 | ||
| CN2015108274305 | 2015-11-15 | ||
| CN201510827430 | 2015-11-15 | ||
| CN201510827126 | 2015-11-15 | ||
| CN2015108271260 | 2015-11-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106300376A true CN106300376A (en) | 2017-01-04 |
| CN106300376B CN106300376B (en) | 2018-02-06 |
Family
ID=57619398
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732881.0U Expired - Fee Related CN205846730U (en) | 2015-07-29 | 2016-07-05 | No-flashy-flow switching device |
| CN201610551887.2A Active CN106300376B (en) | 2015-02-27 | 2016-07-05 | No-flashy-flow switching device and its control method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620732881.0U Expired - Fee Related CN205846730U (en) | 2015-07-29 | 2016-07-05 | No-flashy-flow switching device |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN205846730U (en) |
| WO (1) | WO2017016501A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667442A (en) * | 2017-06-05 | 2018-10-16 | 广州市金矢电子有限公司 | Operating passing zero switching protective device |
| WO2020083181A1 (en) * | 2018-10-22 | 2020-04-30 | 郭桥石 | Alternating-current arc extinguishing circuit and device, and switching system |
| CN111541230A (en) * | 2020-04-20 | 2020-08-14 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
| US12014893B2 (en) | 2018-09-19 | 2024-06-18 | Qiaoshi Guo | Arc-extinguishing circuit with two power supplies and apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08300149A (en) * | 1995-04-28 | 1996-11-19 | Matsushita Electric Ind Co Ltd | Arc welding machine |
| US20030184926A1 (en) * | 2002-04-01 | 2003-10-02 | Uis Abler Electronics Co., Ltd. | Hybrid switch module for an AC power capacitor |
| CN201359695Y (en) * | 2009-03-09 | 2009-12-09 | 重庆明斯克电气有限责任公司 | Mechanical action executive circuit device of low voltage intelligent combination switch |
| CN201570865U (en) * | 2009-12-11 | 2010-09-01 | 重庆明斯克电气有限责任公司 | Inner triangle type low pressure intelligent rapid composite switch action execution circuit |
| CN102946106A (en) * | 2012-11-27 | 2013-02-27 | 常州市宏大电气有限公司 | Silicon controlled rectifier combination switch |
-
2016
- 2016-07-05 CN CN201620732881.0U patent/CN205846730U/en not_active Expired - Fee Related
- 2016-07-05 CN CN201610551887.2A patent/CN106300376B/en active Active
- 2016-07-28 WO PCT/CN2016/092015 patent/WO2017016501A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08300149A (en) * | 1995-04-28 | 1996-11-19 | Matsushita Electric Ind Co Ltd | Arc welding machine |
| US20030184926A1 (en) * | 2002-04-01 | 2003-10-02 | Uis Abler Electronics Co., Ltd. | Hybrid switch module for an AC power capacitor |
| CN201359695Y (en) * | 2009-03-09 | 2009-12-09 | 重庆明斯克电气有限责任公司 | Mechanical action executive circuit device of low voltage intelligent combination switch |
| CN201570865U (en) * | 2009-12-11 | 2010-09-01 | 重庆明斯克电气有限责任公司 | Inner triangle type low pressure intelligent rapid composite switch action execution circuit |
| CN102946106A (en) * | 2012-11-27 | 2013-02-27 | 常州市宏大电气有限公司 | Silicon controlled rectifier combination switch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667442A (en) * | 2017-06-05 | 2018-10-16 | 广州市金矢电子有限公司 | Operating passing zero switching protective device |
| US12014893B2 (en) | 2018-09-19 | 2024-06-18 | Qiaoshi Guo | Arc-extinguishing circuit with two power supplies and apparatus |
| WO2020083181A1 (en) * | 2018-10-22 | 2020-04-30 | 郭桥石 | Alternating-current arc extinguishing circuit and device, and switching system |
| CN112753084A (en) * | 2018-10-22 | 2021-05-04 | 郭桥石 | Alternating current arc extinguishing circuit, alternating current arc extinguishing device and switch system |
| CN111541230A (en) * | 2020-04-20 | 2020-08-14 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
| CN111541230B (en) * | 2020-04-20 | 2022-04-19 | 国网新疆电力有限公司塔城供电公司 | Inrush current overvoltage treatment device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205846730U (en) | 2016-12-28 |
| WO2017016501A1 (en) | 2017-02-02 |
| CN106300376B (en) | 2018-02-06 |
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