CN1151595C - Power supply device with stand-by AC function - Google Patents
Power supply device with stand-by AC function Download PDFInfo
- Publication number
- CN1151595C CN1151595C CNB011161566A CN01116156A CN1151595C CN 1151595 C CN1151595 C CN 1151595C CN B011161566 A CNB011161566 A CN B011161566A CN 01116156 A CN01116156 A CN 01116156A CN 1151595 C CN1151595 C CN 1151595C
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- CN
- China
- Prior art keywords
- power supply
- power
- direct current
- stand
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Direct Current Feeding And Distribution (AREA)
Abstract
The present invention relates to a power supply device with AC standby function, which is characterized in that the present invention comprises at least two groups of AC power supply input, at least three groups of DC power supply die sets and a switching circuit. When the input of any AC power supply is abnormal, the input can be automatically converted to the input of the other normal AC power supply.
Description
Technical field
The present invention relates to a kind of power supply device, particularly relate to a kind of input of at least two group AC power, at least three group direct current power supply modules and of comprising and switch circuit, import when unusual when arbitrary AC power, can automatically switch to the power supply device with stand-by AC (AC Redundant) function of another normal AC power input.
Background technology
As shown in Figure 1, existing power system with direct current standby (DC Redundant) function, for single AC power input 11 provides many group DC power supplier 12 outputs in parallel, it is under the situation that meets with single DC power supplier damage, even the unlikely power supply that causes is exported interruption, because the formed standby functions of other direct current power supply modules is enough to keep normal power supply output; Yet, if single AC power input 11 because of interrupting improperly or open circuit, for example attaching plug is played the socket on wall or UPS because of carelessness, just whole power system will be interrupted, causes computer work or server center to stop then.
The power failure of avoiding above-mentioned fortuitous event to cause, desirable power system is in possessing prior art the direct current standby functions, also should provide ac input end similar standby functions, just when exchanging the input accident power-off for one group, power system can also be organized by him and exchange input continuation power supply.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of power supply device with stand-by AC function is provided, make it possess the above AC power input of two groups, the power supply device that cooperates the output in parallel of many group direct current power supply modules, when wherein the interruption situation takes place in one group of AC power input, this power supply device promptly switches circuit by one, the AC power input switching of power failure is connected in parallel to another normal AC power input of powering, so can keeps the script Alternating Current Power Supply and unlikely influence DC power supplier running thereafter.Promptly when exchanging the input accident power-off for one group, power system can also be organized by him and exchange input continuation power supply.
The objective of the invention is to realize by following technical scheme.According to a kind of power supply device with stand-by AC function that the present invention proposes, it comprises at least two group alternating current input power supplyings; At least three group direct current power supply modules, described direct current power supply module wherein two groups be electrically connected to described alternating current input power supplying respectively, all the other direct current power supply modules are then as standby direct current power supply module; And one switch circuit, be electrically connected between described alternating current input power supplying and the described standby direct current power supply module, it comprises two groups of relays that switch one to one and one group of relay that are at least two pairs one switchings at least, one end of the described relay that switches one to one is electrically connected to described alternating current input power supplying respectively, in order to the conducting of controlling indivedual alternating current input power supplyings path whether, and an end of described two pairs one relays that switch is electrically connected to the described relay that switches one to one respectively, the other end then is electrically connected to described standby direct current power supply module, and described commutation circuit can automatically switch to another normal AC power input when arbitrary alternating current input power supplying is unusual.
Purpose of the present invention can also further realize by following technical measures.
Aforesaid power supply device with stand-by AC function, wherein this alternating current input power supplying can be from different AC power sources.
Aforesaid power supply device with stand-by AC function, wherein this DC power supplier is to adopt output power supply in parallel.
Aforesaid power supply device with stand-by AC function, wherein this commutation circuit is live wire and the ground wire that switches this AC power input simultaneously.
Aforesaid power supply device with stand-by AC function, wherein the change action of this commutation circuit is that AC power alternation in this normal AC power input just carries out during to zero crossover point (Zero-crossing).
The present invention compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the present invention has the power supply device of stand-by AC function, possesses following characteristics:
One, stand-by AC power supply and dc standby power are used simultaneously, have increased the stability of power supply with constantly electrical.
Two, utilize little processing controls can be fast and relay is switched in zero crossover point, reduce inrush current, improve the reliability of element.
Three, this AC power input can be independently source, can be connected to different electric power systems, and in present embodiment, first AC power can be domestic power supply, and second AC power then can be received UPS.
Progressive of the present invention has been to take into account the direct current of power system and the standby functions that exchanges, and then a more reliable and more stable power supply source is provided, and the good and practice of its practicality is unprecedented, thereby possesses patentability.
Description of drawings
Fig. 1 is existing power system;
Fig. 2 is preferred embodiment of the present invention;
Fig. 3 is the circuit block diagram of a preferred embodiment of the power supply device of the present invention with stand-by AC function.
The label of main element is as follows among the figure:
11: the AC power input
12: the direct current power supply module
AC power input in 21: the first
AC power input in 22: the second
23: commutation circuit
231: the first relays
232: the second relays
233: the three relays
24: the first direct current power supply modules
25: the second direct current power supply modules
26: the three direct current power supply modules
AC power input in 31: the first
AC power input in 32: the second
33: commutation circuit
331: the first relays
332: the second relays
333: the three relays
34: the first direct current power supply modules
35: the second direct current power supply modules
36: the three direct current power supply modules
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the power supply device that foundation the present invention proposes with stand-by AC function, its concrete structure, feature and effect thereof, describe in detail as after.
See also shown in Figure 2ly, be the embodiment of power supply device of the present invention.In the present embodiment, have two groups of AC power inputs, i.e. first AC power input 21 and second AC power input 22, wherein this AC power input is except that being electrically connected to the first direct current power supply module 24 and the second direct current power supply module 25 respectively, also all be electrically connected to two groups of relays that switch one to one of commutation circuit 23 respectively, i.e. first relay 231 and second relay 232; This relay then again via behind one group two pairs one the 3rd relays 233 that switch, is electrically connected the 3rd direct current power supply module 26.Situation when being normal operation shown in Figure 2, the 3rd direct current power supply module 26 participates in the first direct current power supply module 24 with 25 outputs in parallel of the second direct current power supply module, the power that is higher than load consumption is provided, its required AC power is from first AC power input 21, therefore first relay 231 is a conducting state, and the 3rd relay 233 then is an end conducting that connects the 3rd direct current power supply module 26 and first relay 231.As for second relay 232, it can be and opens circuit or conducting state.
Figure 3 shows that the situation that first AC power input 31 is interrupted, it causes the first direct current power supply module, 34 power failure, second AC power input this moment 32 must be brought into play stand-by AC function and stops simultaneously to avoid the first direct current power supply module 34 and the second direct current power supply module 35, so commutation circuit 33 begins to move; At first, make 332 conductings of second relay, disconnect first relay 331 simultaneously; Secondly, connect 333 li ends that connect the 3rd direct current power supply module 36 and second relay 331 of the 3rd relay, make the second direct current power supply module 35 be electrically connected to second AC power input 32 to continue power supply.
Via above explanation, can understand operating principle of the present invention, and on the technological means of practical application, there are 2 need to take in, one carries out should be in the AC power alternation to zero crossover point (Zero-Crossing) time for the switching of this relay, to reduce inrush current, produce spark when avoiding switching; Secondly enable for AC interruptions to stand-by power supply, to guarantee the constantly electrical of out-put supply.This problem can be passed through microprocessor controller, for the detecting of AC power alternation situation, and reaches the accurate and control rapidly of machine in due course of this relay, and therefore technological means of the present invention is achieved.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. power supply device with stand-by AC function is characterized in that it comprises:
At least two group alternating current input power supplyings;
At least three group direct current power supply modules, described direct current power supply module wherein two groups be electrically connected to described alternating current input power supplying respectively, all the other direct current power supply modules are then as standby direct current power supply module; And
One switches circuit, be electrically connected between described alternating current input power supplying and the described standby direct current power supply module, it comprises two groups of relays that switch one to one and one group of relay that are at least two pairs one switchings at least, one end of the described relay that switches one to one is electrically connected to described alternating current input power supplying respectively, in order to the conducting of controlling indivedual alternating current input power supplyings path whether, and an end of described two pairs one relays that switch is electrically connected to the described relay that switches one to one respectively, the other end then is electrically connected to described standby direct current power supply module, and described commutation circuit can automatically switch to another normal AC power input when arbitrary alternating current input power supplying is unusual.
2. the power supply device with stand-by AC function according to claim 1 is characterized in that, described alternating current input power supplying can be identical or different AC power source.
3. the power supply device with stand-by AC function according to claim 1 is characterized in that, described DC power supplier is to adopt output power supply in parallel.
4. the power supply device with stand-by AC function according to claim 1 is characterized in that, described commutation circuit is live wire and the ground wire that switches this AC power input simultaneously.
5. the power supply device with stand-by AC function according to claim 1 is characterized in that, the change action of described commutation circuit is that AC power alternation in this normal AC power input just carries out during to zero crossover point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011161566A CN1151595C (en) | 2001-05-17 | 2001-05-17 | Power supply device with stand-by AC function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011161566A CN1151595C (en) | 2001-05-17 | 2001-05-17 | Power supply device with stand-by AC function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1387293A CN1387293A (en) | 2002-12-25 |
| CN1151595C true CN1151595C (en) | 2004-05-26 |
Family
ID=4662425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011161566A Expired - Fee Related CN1151595C (en) | 2001-05-17 | 2001-05-17 | Power supply device with stand-by AC function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1151595C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105788788B (en) * | 2016-03-29 | 2018-03-30 | 国网福建省电力有限公司 | One kind rotary ten enters semifixed resistor case preparation method |
| CN106364682A (en) * | 2016-09-28 | 2017-02-01 | 成都凯天电子股份有限公司 | Uninterruptible emergency power supply system for flight parameter recorder |
-
2001
- 2001-05-17 CN CNB011161566A patent/CN1151595C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1387293A (en) | 2002-12-25 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040526 Termination date: 20150517 |
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| EXPY | Termination of patent right or utility model |