CN103943386A - Controllable switch and control method thereof - Google Patents
Controllable switch and control method thereof Download PDFInfo
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- CN103943386A CN103943386A CN201310020655.0A CN201310020655A CN103943386A CN 103943386 A CN103943386 A CN 103943386A CN 201310020655 A CN201310020655 A CN 201310020655A CN 103943386 A CN103943386 A CN 103943386A
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- cut
- mechanical switch
- gate
- switch
- lead time
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Abstract
The invention discloses a controllable switch and a control method of the controllable switch. The controllable switch comprises a mechanical switch and a control device, wherein the mechanical switch is provided with the input end used for being connected with a power source and the output end used for being connected with loads; the control device is used for controlling the mechanical switch to be turned on or off, the control device comprises a period calculation module, an on-off calculation module and a control module, and the period calculation module is used for calculating the period T of periodic signals of the input end or the output end of the mechanical switch; the on-off calculation module is used for calculating the turning-on lead time Tt2 according to the period T, the turning-on action time Tt1 of the mechanical switch and the preset turning-on angle theta t and for calculating the turning-off lead time Td2 according to the period T, the turning-off action time Tt2 of the mechanical switch and the preset turning-off angle theta d; the control module is used for controlling the mechanic switch to be turned on or off according to the turning-on lead time Tt2 and the turning-off lead time Td2. The controllable switch has the advantages of being high in reliability, low in loss and high in accuracy.
Description
Technical field
The present invention relates to switch, particularly relate to a kind of gate-controlled switch and control method thereof.
Background technology
Gate-controlled switch refers to that switch can be at the accurate conducting of moment of setting and the switch of cut-out.At present, the characteristic that gate-controlled switch utilizes the conducting of silicon controlled voltage zero-cross, current over-zero to cut off mostly realizes controlled break-make, and this gate-controlled switch exists following defect:
1, controllable silicon when energising temperature rise is larger, install cooling system additional;
2, controllable silicon is easily breakdown and lost efficacy;
3, the frequent switching of controllable silicon meeting forms harmonic source.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, a kind of high reliability, low-loss, high-precision gate-controlled switch are provided.
Another technical problem to be solved by this invention is, a kind of control method of gate-controlled switch is provided, to realize the accuracy of conducting and cut-out.
In order to solve the problems of the technologies described above, a kind of gate-controlled switch provided by the present invention, comprise mechanical switch and control device, described mechanical switch has input for connecting power supply and output for being connected load, described control device is used for controlling described mechanical switch conducting and cut-out, and described control device comprises
Computation of Period module, for the cycle T of the periodic signal of calculating machine switch input terminal or output;
Switching computing module, for according to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2;
Control module, for according to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch conducting and cut-out.
In an embodiment, described switching computing module is according to described cycle T, mechanical switch turn-on action time T therein
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula as follows:
Wherein, N is natural number.
Therein in an embodiment, 0≤T
t2≤ T.
In an embodiment, described switching computing module cuts off T operate time according to described cycle T, mechanical switch therein
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2formula as follows:
Wherein, N is natural number.
Therein in an embodiment, 0≤T
d2≤ T.
In an embodiment, described control device also comprises therein
Protection computing module; for gathering voltage and/or the current signal of described mechanical switch output; and transferring to described control module, described control module, for judging that according to described voltage and/or current signal whether load is abnormal, if extremely, is controlled described mechanical switch and is cut off.
In an embodiment, described mechanical switch is relay or A.C. contactor therein.
The control method of a kind of gate-controlled switch provided by the present invention, described gate-controlled switch comprises mechanical switch, and described mechanical switch has input for connecting power supply and output for being connected load, and described control method comprises the steps:
Calculate the cycle T of the periodic signal of described mechanical switch input or output;
According to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2;
According to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch conducting and cut-out.
In an embodiment, described according to described cycle T, mechanical switch turn-on action time T therein
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula as follows:
Wherein, N is natural number.
In an embodiment, described according to described cycle T, mechanical switch cut-out T operate time therein
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2formula as follows:
Wherein, N is natural number.
Compared with prior art, the control method of gate-controlled switch provided by the present invention and gate-controlled switch has following beneficial effect:
1, gate-controlled switch provided by the present invention comprises mechanical switch and control device, control device flows through voltage, the electric current of mechanical switch input or output by real-time detection, and according to the preset angle of flow and cut-out angle, while is in conjunction with the mechanical property of gate-controlled switch, control connection and the cut-out of gate-controlled switch, thereby realized the accuracy of conducting and cut-out.
2, the preset angle of flow of gate-controlled switch provided by the present invention and cut off angle and can regulate, can realize gate-controlled switch system no-flashy-flow is impacted, and itself is without the object of electric arc etc.
3, gate-controlled switch provided by the present invention can and cut off angle according to the angle of flow in different loads control set for adjusting, thereby realizes the consistency of unequally loaded conducting and cut-out.
4, gate-controlled switch provided by the present invention is owing to being mechanical switch, and anti-harmonic wave and jamproof ability are very strong.
In a word, gate-controlled switch provided by the present invention has been realized high reliability, low-loss, high-precision perfect set, and it mainly can be applied in low-voltage distribution equipment in the no-flashy-flow conducting or cutting-off controlling to some elements.
Brief description of the drawings
Fig. 1 is the structural representation of the gate-controlled switch in one of them embodiment of the present invention;
Fig. 2 is the module frame chart of the control device of the gate-controlled switch in Fig. 1;
Fig. 3 is the switching oscillogram of the gate-controlled switch in Fig. 1.
Embodiment
Below with reference to accompanying drawing, also the present invention is described in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
In one of them embodiment of the present invention, a kind of gate-controlled switch is provided, as shown in Figure 1, gate-controlled switch 100 comprises mechanical switch 110 and control device 120, described mechanical switch 110 has input 111 for connecting power supply and output 112 for being connected load, and described control device 120 is for controlling described mechanical switch 110 conductings and cut-out.Preferably, described mechanical switch 110 is relay or A.C. contactor.
As shown in Figure 2, described control device 120 comprises computation of Period module 121, switching computing module 122 and control module 123, and wherein, computation of Period module 121 is for the cycle T of the periodic signal of calculating machine switch 110 inputs 111 or output 112.Preferably, voltage when conducting on computation of Period module 121 Real-Time Monitoring mechanical switch 110 inputs 111, to reach accurate control, the load characteristic of computation of Period module 121 Real-Time Monitoring mechanical switch 110 outputs 112 when cut-out, to realize the accuracy of cut-out.
Described switching computing module 122, for according to described cycle T, mechanical switch 110 turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch 110
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2.Mechanical switch turn-on action time T
t1refer to mechanical switch 110 from receiving conducting control signal to the time that conducting is experienced, the turn-on action asynchronism(-nization) of different types of mechanical switch 110.In like manner, mechanical switch cuts off T operate time
d1refer to mechanical switch 110 from receiving cutting-off controlling signal to cutting off time of experiencing.
Described control module 123 is for according to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch 110 conductings and cut-out.Concrete grammar is as follows: when conducting, control module 123 is according to cycle T and preset conduction angle
tcalculate preset ON time point, light through conducting lead time T from preset ON time
t2rear control mechanical switch 110 conductings.In like manner, when cut-out, control module 123 is according to cycle T and preset cut-out angle θ
dcalculate preset some break time, light through cutting off lead time T from preset break time
d2rear control mechanical switch 110 cuts off.
The control device 120 of the gate-controlled switch 100 in the embodiment of the present invention flows through voltage, the electric current of calculating machine switch 110 inputs 111 or output 112 by real-time detection, and according to the preset angle of flow and cut-out angle, while is in conjunction with the mechanical property of gate-controlled switch 100, control connection and the cut-out of gate-controlled switch 100, thereby realized the accuracy of conducting and cut-out.
Preferably, described switching computing module 122 is according to described cycle T, mechanical switch 110 turn-on action time T
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula as follows:
Wherein, N is natural number.
According to formula (1), in the time that N gets 1, establishing cycle T is 5s, mechanical switch 110 turn-on action time T
t1for 2s, preset conduction angle
tbe 72 °, conducting lead time T
t2for 4s.In the time that N gets 2, other condition is identical, conducting lead time T
t2for 9s.
Further, 0≤T
t2≤ T.Can realize like this need to be preset while opening initial point t1 conducting when load, and gate-controlled switch 100 is in the accurate conducting of the t1 in next cycle point (as shown in the upper part in Fig. 3).
Preferably, describedly cut off T operate time according to described cycle T, mechanical switch 110
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2formula as follows:
Wherein, N is natural number.
According to formula (2), in the time that N gets 1, establishing cycle T is 5s, and mechanical switch 110 cuts off T operate time
d1for 1s, preset cut-out angle θ
dbe 72 °, cut off lead time T
d2for 5s.In the time that N gets 2, other condition is identical, cuts off lead time T
d2for 10s.
Further, 0≤T
d2≤ T.Can realize like this need to be in the time that preset cut-out point t2 cuts off when load, and gate-controlled switch 100 precisely cuts off (as shown in the lower part in Fig. 3) at the t2 in next cycle point.
Preferably; described control device 120 also comprises protection computing module 124; protection computing module 124 is for gathering voltage and/or the current signal of described mechanical switch 110 outputs 112; and transfer to described control module 123; described control module 123, for judging that according to described voltage and/or current signal whether load is abnormal, if extremely, is sent cut-out executive signal.Like this when the various effects that can play protection load when abnormal such as overvoltage, under-voltage, overcurrent appear in load.
As can be seen here, the gate-controlled switch 100 in the embodiment of the present invention has following beneficial effect:
1, the gate-controlled switch conducting of the embodiment of the present invention and the accuracy of cut-out are high.
2, the preset angle of flow of the gate-controlled switch of the embodiment of the present invention and cut off angle and can regulate, can realize gate-controlled switch system no-flashy-flow is impacted, and itself is without the object of electric arc etc.
3, the gate-controlled switch of the embodiment of the present invention can and cut off angle according to the angle of flow in different loads control set for adjusting, thereby realizes the consistency of unequally loaded conducting and cut-out.
4, the gate-controlled switch of the embodiment of the present invention is owing to being mechanical switch, and anti-harmonic wave and jamproof ability are very strong.
In a word, the gate-controlled switch of the embodiment of the present invention has been realized high reliability, low-loss, high-precision perfect set, and it mainly can be applied in low-voltage distribution equipment in the no-flashy-flow conducting or cutting-off controlling to some elements.
In another embodiment of the present invention, provide a kind of control method of gate-controlled switch, described gate-controlled switch comprises mechanical switch, and described mechanical switch has input for connecting power supply and output for being connected load, and described control method comprises the steps:
Step 1, calculate the cycle T of the periodic signal of described mechanical switch input or output.
Step 2, according to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2.
Step 3, according to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch 110 conductings and cut-out.
Preferably, in step 2, described according to described cycle T, mechanical switch 110 turn-on action time T
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula be the formula (1) in above-described embodiment.
Preferably, in step 2, describedly cut off T operate time according to described cycle T, mechanical switch 110
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2formula be the formula (2) in above-described embodiment.
By the control method of gate-controlled switch provided by the present invention, can realize the accuracy of conducting and the cut-out of gate-controlled switch.
The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a gate-controlled switch, comprise mechanical switch and control device, described mechanical switch has input for connecting power supply and output for being connected load, and described control device is used for controlling described mechanical switch conducting and cut-out, it is characterized in that, described control device comprises
Computation of Period module, for the cycle T of the periodic signal of calculating machine switch input terminal or output;
Switching computing module, for according to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2;
Control module, for according to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch conducting and cut-out.
2. gate-controlled switch according to claim 1, is characterized in that, described switching computing module is according to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula as follows:
Wherein, N is natural number.
3. gate-controlled switch according to claim 2, is characterized in that, 0≤T
t2≤ T.
4. gate-controlled switch according to claim 1, is characterized in that, described switching computing module cuts off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate described cut-out lead time T
d2formula as follows:
Wherein, N is natural number.
5. gate-controlled switch according to claim 4, is characterized in that, 0≤T
d2≤ T.
6. gate-controlled switch according to claim 1, is characterized in that, described control device also comprises
Protection computing module; for gathering voltage and/or the current signal of described mechanical switch output; and transferring to described control module, described control module, for judging that according to described voltage and/or current signal whether load is abnormal, if extremely, is controlled described mechanical switch and is cut off.
7. according to the gate-controlled switch described in any one in claim 1 to 6, it is characterized in that, described mechanical switch is relay or A.C. contactor.
8. a control method for gate-controlled switch, described gate-controlled switch comprises mechanical switch, and described mechanical switch has input for connecting power supply and output for being connected load, it is characterized in that, and described control method comprises the steps:
Calculate the cycle T of the periodic signal of described mechanical switch input or output;
According to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate conducting lead time T
t2, cut off T operate time according to described cycle T, mechanical switch
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2;
According to described conducting lead time T
t2with described cut-out lead time T
d2control described mechanical switch conducting and cut-out.
9. the control method of gate-controlled switch according to claim 8, is characterized in that, described according to described cycle T, mechanical switch turn-on action time T
t1with preset conduction angle
tcalculate described conducting lead time T
t2formula as follows:
Wherein, N is natural number.
10. the control method of gate-controlled switch according to claim 8, is characterized in that, described according to described cycle T, mechanical switch cut-out T operate time
d1with preset cut-out angle θ
dcalculate and cut off lead time T
d2formula as follows:
Wherein, N is natural number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020655.0A CN103943386B (en) | 2013-01-18 | 2013-01-18 | Gate-controlled switch and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310020655.0A CN103943386B (en) | 2013-01-18 | 2013-01-18 | Gate-controlled switch and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103943386A true CN103943386A (en) | 2014-07-23 |
| CN103943386B CN103943386B (en) | 2016-04-06 |
Family
ID=51191006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310020655.0A Expired - Fee Related CN103943386B (en) | 2013-01-18 | 2013-01-18 | Gate-controlled switch and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103943386B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106783394A (en) * | 2016-11-17 | 2017-05-31 | 深圳市欧瑞博电子有限公司 | The contact protection circuit and the power supply control apparatus comprising the contact protection circuit of relay |
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| JP2005216649A (en) * | 2004-01-29 | 2005-08-11 | Asti Corp | Relay control device |
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| CN101826417A (en) * | 2009-12-17 | 2010-09-08 | 韩燕� | Method and device for controlling low current of relay |
| CN101908439A (en) * | 2010-07-09 | 2010-12-08 | 北海市深蓝科技发展有限责任公司 | Self-adaptive electromagnetic relay zero-crossing on and off control method |
| CN102693873A (en) * | 2011-03-21 | 2012-09-26 | 东硕资讯股份有限公司 | Time parameter acquiring method for adjusting alternating current electrical potential switching sequence of relay |
-
2013
- 2013-01-18 CN CN201310020655.0A patent/CN103943386B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003288829A (en) * | 2002-01-28 | 2003-10-10 | Matsushita Electric Ind Co Ltd | Relay control device |
| JP2005216649A (en) * | 2004-01-29 | 2005-08-11 | Asti Corp | Relay control device |
| CN2859778Y (en) * | 2005-12-23 | 2007-01-17 | 郭赐福 | Zero cross-over control system |
| CN101826417A (en) * | 2009-12-17 | 2010-09-08 | 韩燕� | Method and device for controlling low current of relay |
| CN101908439A (en) * | 2010-07-09 | 2010-12-08 | 北海市深蓝科技发展有限责任公司 | Self-adaptive electromagnetic relay zero-crossing on and off control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106783394A (en) * | 2016-11-17 | 2017-05-31 | 深圳市欧瑞博电子有限公司 | The contact protection circuit and the power supply control apparatus comprising the contact protection circuit of relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103943386B (en) | 2016-04-06 |
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