CN101969225A - Dual-circuit automatic mutual-switching power system without break points - Google Patents
Dual-circuit automatic mutual-switching power system without break points Download PDFInfo
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- CN101969225A CN101969225A CN2010105269730A CN201010526973A CN101969225A CN 101969225 A CN101969225 A CN 101969225A CN 2010105269730 A CN2010105269730 A CN 2010105269730A CN 201010526973 A CN201010526973 A CN 201010526973A CN 101969225 A CN101969225 A CN 101969225A
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Abstract
The invention discloses a dual-circuit automatic mutual-switching power system without break points, which comprises a first output power, a second output power, a first switching circuit and a second switching circuit, wherein, the output terminal of the first input power is connected with the first input terminal of the first switching circuit and the second input terminal of the second switching circuit; the output terminal of the second input power is connected with the second input terminal of the first switching circuit and the first input terminal of the second switching circuit; and the output terminal of the first switching circuit and the output terminal of the second switching circuit are connected with the first circuit output power and the second circuit output power respectively. In the event of failure of one input power and normal operation of the other input power, the normal input power supplies power to the two circuit output powers; and during the automatic switching process in the case of failure occurrence or failure clearance, one of the two circuit output powers realizes power supply without switchover and the break points, thus fully avoiding operation rejection caused by power system switchover and realizing high-reliability continuous power supply.
Description
Technical field
The present invention relates to high reliability power-supply system field, relate in particular to a kind of double loop and cut no breakpoint power-supply system automatically mutually.
Background technology
In high reliability power-supply system field, the widely used power-supply system that has handoff functionality has following characteristics at present:
1, two-way input power supply is principal and subordinate's status, and one the tunnel is that main power source, a tunnel is from power supply.During operate as normal, main power source directly to the out-put supply power supply, is in stand-by state from power supply;
2, when power supply breaks down, system is not switched; When main power source broke down, system switched to from power supply and powers to out-put supply;
3, main power source break down or the handoff procedure of fault when eliminating in, all there be flashing of short time in out-put supply;
If 4 want to avoid flashing in the described handoff procedure, must rely on the big electric capacity in the follow-up DC loop to realize.
1., electricity consumption side is not DC loop if but following state is arranged:; 2., the capacitance of capacity cell does not reach enough big in electricity consumption side's DC loop; 3., electricity consumption side does not allow to exist and flashes; 4., the phase place difference of master and slave two-way input power supply, and make flashing of switching bigger, then must bring harm to the operate as normal in electricity consumption loop, produce serious consequence, cause major accident.
Summary of the invention
The purpose of this invention is to provide a kind of double loop and cut no breakpoint power-supply system automatically mutually, when fault takes place or fault all have one road out-put supply not have the no breakpoint of switching when eliminating to move continuously; Really realize comprising continuous power supplies in any case such as failover, improved the reliability of power supply greatly.
The present invention adopts following technical proposals: a kind of double loop is cut no breakpoint power-supply system automatically mutually, comprise the first via input power supply and the second tunnel input power supply, out-put supply and the commutation circuit, described out-put supply comprises the first via out-put supply and the second road out-put supply, and described commutation circuit comprises first commutation circuit and second commutation circuit; The output of first via input power supply all is connected with the first input end of first commutation circuit and second input of second commutation circuit, the output of the second tunnel input power supply all is connected with second input of first commutation circuit and the first input end of second commutation circuit, the output of the output of first commutation circuit and second commutation circuit is connected with the second road out-put supply with first via out-put supply respectively, make first via input power supply energy simultaneously to first via out-put supply and the power supply of the second road out-put supply, the second tunnel input power supply also can be powered to the first via out-put supply and the second road out-put supply simultaneously.
The input that the output of the described first via input power supply and the second tunnel input power supply is connected with input power monitor circuit, first via out-put supply and the second road out-put supply respectively is connected with the out-put supply monitoring circuit respectively.
Described input power monitor circuit and out-put supply monitoring circuit are made of relay respectively, the coil of each relay is connected with the output of first via input power supply, the output of the second tunnel input power supply, the input of first via out-put supply, the input of the second road out-put supply respectively, and the normally opened contact of relay or normally-closed contact are used for output alarm signal.
Described first commutation circuit and second commutation circuit are made of first relay and second relay respectively, first end of the normally opened contact of first relay and first end of normally-closed contact are respectively the first input end and second input of first commutation circuit, and first end of the normally opened contact of second relay and first end of normally-closed contact are respectively the first input end and second input of second commutation circuit.
The input of output, first via out-put supply and the second road out-put supply of the described first via input power supply and the second tunnel input power supply is connected with switch respectively.
Double loop of the present invention is cut no breakpoint power-supply system automatically mutually and is cut mutually by two circuit, has realized the power supply of high reliability.During input power supply operate as normal, the two-way out-put supply is all in continuous operate as normal, no matter be that fault is when taking place or the automatic switching procedure of fault when eliminating, all there is one road out-put supply to realize not having and switches no breakpoint power supply, can guarantee to satisfy the electricity consumption loop does not have the breakpoint aspect to the power supply power supply continuity the harshest requirement, particularly, can avoid fully switching tripping (should move does not have to move) and the malfunction (should not move and move) that causes because of power-supply system for the protection system on the visual plant; Each road inputs or outputs respectively a cover monitoring circuit, and when breaking down, monitoring circuit separately all can send corresponding alarm signal immediately, and reminds people is gone timely processing, has further improved this power-supply system reliability; The scheme of this power-supply system symmetric design can also reduce manufacturing cost, and makes things convenient for the maintenance of system, the preparation of standby redundancy.
Description of drawings
Fig. 1 is a theory diagram of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is the inside connection layout of a kind of relay used among the present invention;
Fig. 4 is the inside connection layout of another kind of relay used among the present invention.
Embodiment
As shown in Figure 1 and Figure 2, double loop of the present invention is cut no breakpoint power-supply system automatically mutually and is comprised first via input power supply IN1 and the second tunnel input power supply IN2, first commutation circuit and second commutation circuit, first via out-put supply OUT1 and the second road out-put supply OUT2, the monitoring circuit of each road input power supply and out-put supply; Wherein first commutation circuit and second commutation circuit are respectively by relay J 1, the J2(model is MK2P-I-220VAC, internal structure as shown in Figure 3, wherein 21 is drive coil) constitute, the output of first via input power supply IN1 and normally opened contact first end of relay J 1, drive coil connects, first end of the normally-closed contact of while and relay J 2 is connected, the output of the second tunnel input power supply IN2 is connected with first end of the normally-closed contact of relay J 1, first end of the normally opened contact of while and relay J 2, drive coil connects, and the output of the output of the armature contact of relay J 1 and the armature contact of relay J 2 is connected with the second road out-put supply OUT2 with first via out-put supply OUT1 respectively.Wherein the output of the first via input power supply IN1 and the second tunnel input power supply IN2 is connected with the first via input power monitor circuit and the second tunnel input power monitor circuit respectively, and the input of the first via out-put supply OUT1 and the second road out-put supply OUT2 is connected with the first via out-put supply monitoring circuit and the second road out-put supply monitoring circuit respectively.As shown in Figure 2, first via input power monitor circuit and the second tunnel input power monitor circuit, first via out-put supply monitoring circuit and the second road out-put supply monitoring circuit are MY2NJ-220VAC by relay J 3, J4, J5, J6(model respectively, internal structure as shown in Figure 4, wherein 22 is drive coil) constitute.With relay J 3 is the example explanation: the drive coil of relay J 3 is connected with the output of first via input power supply IN1, normally-closed contact of relay J 3 (12,4) and normally opened contact (9,5) are the output of alarm condition, be used for being connected with the output alarm device, the output alarm device can be by user's autogamy., the alarm condition output of native system all is dual, promptly exports the signal of positive logic (normally opened contact) and negative logic (normally-closed contact) two states simultaneously, can make things convenient for the user freely to use this device arbitrarily.The output of first via input power supply IN1, the output of the second tunnel input power supply IN2, the input of first via out-put supply OUT1, the input of the second road out-put supply OUT2 are connected with K switch 1, K2, K3, K4(double-pole switch respectively).
As shown in Figure 1 and Figure 2, this power-supply system is no matter be from the power supply input port or power output sees it all is holosymmetric in system, the equality and the symmetry of two-way power supply have really been realized, be equivalent to the science combination of two independent common Switching power systems, overcome the shortcoming of power supply through combination, further enlarged the advantage of power supply, when helping any one road power supply like this and being out of order, another road can equality, take up all continuously and load.When the native system operate as normal, first via input power supply IN1 is first via out-put supply OUT1 power supply, and the second tunnel input power supply IN2 is the second road out-put supply OUT2 power supply, and current supply circuit at this moment is equivalent to two power-supply systems independently separately.When any one tunnel input power supply broke down, this power-supply system can automatically switch.Suppose to break down as first via input power supply IN1, then the normally opened contact of relay J 1 becomes off-state by closure state, normally-closed contact becomes closure state by off-state, this moment the second tunnel, input power supply IN2 to first via out-put supply OUT1 power supply, promptly drove two-way out-put supply (native system requires each road input power supply that the capacity that drives the load of whole two-way out-put supply all should be arranged) by not out of order the second tunnel input power supply IN2 by the normally-closed contact of relay J 1.When breaking down, the monitoring circuit supporting with power supply sends alarm signal simultaneously to the output alarm device, reminds the relevant personnel in time to eliminate this fault, guarantees the reliability of powering.IN1 recovers just often when first via input power supply, then the normally opened contact of relay J 1 becomes closure state by off-state, normally-closed contact becomes off-state by closure state, first via input power supply IN1 recovers to continue the power supply to the second road out-put supply OUT2 to first via out-put supply OUT1 power supply, the second tunnel input power supply IN2, and promptly this power-supply system automatically switches to normal condition.Switching when switching when breaking down in this power-supply system and fault are eliminated all has one road out-put supply really to realize not having the no breakpoint power supply of switching, another road output is switched fast, promptly one road out-put supply has realized not having the no breakpoint power supply of switching, another road has also reached the of short duration performance of handoffs of other power-supply system, and this is the core advantage of this power-supply system.
In a word, this power-supply system two-way out-put supply when not switching all is power supply continuously; Remaining one the tunnel in handoff procedure is to power continuously; have the inaccessible high reliability of other power-supply systems and do not have the no breakpoint power supply performance of switching; be suitable for most two circuit, power supply power supply is had the load of high requirement, for example the protection loop of big machinery device or system.In actual applications, as shown in Figure 1, if the phase place unanimity of two-way input power supply, the described first via out-put supply and the second road out-put supply also can synthesize one the tunnel, thereby constitute total output, the power-supply system that is used for one tunnel output has the inaccessible high reliability of other power-supply systems and does not have the no breakpoint power supply performance of switching.
Claims (5)
1. a double loop is cut no breakpoint power-supply system automatically mutually, comprise the first via input power supply and the second tunnel input power supply, out-put supply and the commutation circuit, it is characterized in that: described out-put supply comprises the first via out-put supply and the second road out-put supply, and described commutation circuit comprises first commutation circuit and second commutation circuit; The output of first via input power supply all is connected with the first input end of first commutation circuit and second input of second commutation circuit, the output of the second tunnel input power supply all is connected with second input of first commutation circuit and the first input end of second commutation circuit, the output of the output of first commutation circuit and second commutation circuit is connected with the second road out-put supply with first via out-put supply respectively, make first via input power supply energy simultaneously to first via out-put supply and the power supply of the second road out-put supply, the second tunnel input power supply also can be powered to the first via out-put supply and the second road out-put supply simultaneously.
2. double loop according to claim 1 is cut no breakpoint power-supply system automatically mutually, it is characterized in that: the input that the output of the described first via input power supply and the second tunnel input power supply is connected with input power monitor circuit, first via out-put supply and the second road out-put supply respectively is connected with the out-put supply monitoring circuit respectively.
3. double loop according to claim 2 is cut no breakpoint power-supply system automatically mutually, it is characterized in that: described input power monitor circuit and out-put supply monitoring circuit are made of relay respectively, the coil of each relay is connected with the output of first via input power supply, the output of the second tunnel input power supply, the input of first via out-put supply, the input of the second road out-put supply respectively, and the normally opened contact of relay or normally-closed contact are used for output alarm signal.
4. cut no breakpoint power-supply system automatically mutually according to claim 1 or 2 or 3 described double loops, it is characterized in that: described first commutation circuit and second commutation circuit are made of first relay and second relay respectively, first end of the normally opened contact of first relay and first end of normally-closed contact are respectively the first input end and second input of first commutation circuit, and first end of the normally opened contact of second relay and first end of normally-closed contact are respectively the first input end and second input of second commutation circuit.
5. double loop according to claim 4 is cut no breakpoint power-supply system automatically mutually, it is characterized in that: the input of output, first via out-put supply and the second road out-put supply of the described first via input power supply and the second tunnel input power supply is connected with switch respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105269730A CN101969225A (en) | 2010-11-01 | 2010-11-01 | Dual-circuit automatic mutual-switching power system without break points |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105269730A CN101969225A (en) | 2010-11-01 | 2010-11-01 | Dual-circuit automatic mutual-switching power system without break points |
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| CN101969225A true CN101969225A (en) | 2011-02-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868584A (en) * | 2015-05-05 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Seamless automatic switching device for DC power supply |
| CN105529820A (en) * | 2015-12-14 | 2016-04-27 | 重庆川仪自动化股份有限公司 | Redundant power supply system |
| CN107769365A (en) * | 2017-09-25 | 2018-03-06 | 上海卫星工程研究所 | The control system of the satellite electron product secondary power supply fail-over unit of restructural |
| CN110398894A (en) * | 2018-04-24 | 2019-11-01 | 四川东方电气自动控制工程有限公司 | Digital electro-hydraulic control device solenoid valve DC power supply switching system and method |
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| CN2377761Y (en) * | 1999-04-09 | 2000-05-10 | 深圳市华为电气股份有限公司 | Automatic switching uninterrupted power supply unit |
| CN201041955Y (en) * | 2007-05-18 | 2008-03-26 | 孙风泉 | Dual power supply switching control device |
| CN201490758U (en) * | 2009-08-20 | 2010-05-26 | 李东波 | Low-pressure dual-power supply automatic switching control device |
| CN201839070U (en) * | 2010-11-01 | 2011-05-18 | 河南电力试验研究院 | Dual-circuit automatic switchover breakpoint-free power system |
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2010
- 2010-11-01 CN CN2010105269730A patent/CN101969225A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2377761Y (en) * | 1999-04-09 | 2000-05-10 | 深圳市华为电气股份有限公司 | Automatic switching uninterrupted power supply unit |
| CN201041955Y (en) * | 2007-05-18 | 2008-03-26 | 孙风泉 | Dual power supply switching control device |
| CN201490758U (en) * | 2009-08-20 | 2010-05-26 | 李东波 | Low-pressure dual-power supply automatic switching control device |
| CN201839070U (en) * | 2010-11-01 | 2011-05-18 | 河南电力试验研究院 | Dual-circuit automatic switchover breakpoint-free power system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868584A (en) * | 2015-05-05 | 2015-08-26 | 中国南方电网有限责任公司超高压输电公司梧州局 | Seamless automatic switching device for DC power supply |
| CN104868584B (en) * | 2015-05-05 | 2017-07-18 | 中国南方电网有限责任公司超高压输电公司梧州局 | A kind of seamless automatic switching control equipment of dc source |
| CN105529820A (en) * | 2015-12-14 | 2016-04-27 | 重庆川仪自动化股份有限公司 | Redundant power supply system |
| CN107769365A (en) * | 2017-09-25 | 2018-03-06 | 上海卫星工程研究所 | The control system of the satellite electron product secondary power supply fail-over unit of restructural |
| CN110398894A (en) * | 2018-04-24 | 2019-11-01 | 四川东方电气自动控制工程有限公司 | Digital electro-hydraulic control device solenoid valve DC power supply switching system and method |
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Application publication date: 20110209 |