CN106329701A - Failure determining and switching system for dual-machine uninterruptible power supply - Google Patents
Failure determining and switching system for dual-machine uninterruptible power supply Download PDFInfo
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- CN106329701A CN106329701A CN201510339496.XA CN201510339496A CN106329701A CN 106329701 A CN106329701 A CN 106329701A CN 201510339496 A CN201510339496 A CN 201510339496A CN 106329701 A CN106329701 A CN 106329701A
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- electric discharge
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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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Abstract
The invention discloses a failure determining and switching system for a dual-machine uninterruptible power supply. Namely, when one of a host and a slave in the system is in normal operation, the other one is in a standby state; when one of the host and slave is in failure in operation, the other one is input to the operation corresponding to the failure part, wherein when the host is in failure in operation, the system automatically switches the slave from a standby mode into an operation mode; when a host bypass is in failure, the system automatically switches a slave bypass to be input to the operation; when the storage battery of the host is low in voltage, the system automatically inputs the storage battery of the slave into a discharge state; and on the contrary, if the slave suffers from corresponding failures, the host is also input into the corresponding part for operation. By adoption of the failure determining and switching system, the shortcomings existing in simultaneous operation of dual machines of a conventional uninterruptible power supply are overcome; the dual machines of the uninterruptible power supply can be effectively combined for use; the failure parts of the dual machines are used for standby application mutually by only requiring to switch the corresponding parts input to a spare machine; and therefore, the service life of the uninterruptible power supply is prolonged while the reliability and stability of load power supply are ensured.
Description
Technical field
The present invention relates to a kind of two-shipper fault of uninterrupted power source and judge switched system.
Background technology
Uninterrupted power source is accumulator to be connected with main frame, by the inverter module of main frame, unidirectional current is converted into the power-supply device of civil power, it is mainly used in providing stable, continual supply of electric power to computer, computer network system or other power electronic equipment, such as electromagnetic valve, pressure transmitter etc..When civil power input is normal, uninterrupted power source will be supplied to load to use by rectification module after civil power voltage stabilizing, uninterrupted power source now is exactly an AC voltage regulator, to eliminate the power pollutions such as the surge of civil power, instantaneous pressure, moment low pressure, electromagnetic noise and frequency shift (FS), improve power quality, there is provided high-quality power supply for load, charged by rectification module accumulator in machine simultaneously；When civil power is because of fault interrupting, the direct current energy of accumulator is switched by inverter module zero and continues power supply to load by uninterrupted power source immediately, makes load maintain the soft and hardware normally working and protecting load without damage.Uninterrupted power source generally can provide protection to overtension or brownout.
In order to improve reliability, current visual plant all uses double parallel mode power, i.e. two uninterrupted power sources to power simultaneously, loads and is shared by two uninterrupted power source equilibriums, and when Dang Yitai breaks down, another can continued power.Under this pattern, two uninterrupted power sources must be all in powered operation state.The load supplying of this pattern is unreasonable, improves system cost, reduces the service life of uninterrupted power source.
Summary of the invention
The technical problem to be solved is to provide a kind of two-shipper fault of uninterrupted power source and judges switched system, native system overcomes the defect that tradition uninterrupted power source two-shipper runs simultaneously, uninterrupted power source two-shipper effectively can be used in combination, the faulty component of two-shipper is the most standby, switching is only needed to put into the corresponding part of guest machine, improve the service life of uninterrupted power source, it is ensured that the reliability and stability of load supplying.
nullFor solving above-mentioned technical problem，Two-shipper fault of uninterrupted power source of the present invention judges that switched system includes main frame and from machine，Described main frame includes main frame internal operation relay、Main frame internal by-pass relay、Main frame internal cell electric discharge relay、Main frame operation troubles switchs、Main frame bypass breakdown switch and cell host low-voltage switches，Described include from machine internal operation relay from machine、From machine internal by-pass relay、From machine internal cell electric discharge relay、Switch from machine operation troubles、From machine bypass breakdown switch with from machine battery low-voltage switches，Native system also includes on and off switch、Regulated power supply、Main frame is outside runs relay、Main frame external bypass relay、Main frame external cell electric discharge relay、From machine outside operation relay、From machine external bypass relay with from machine external cell electric discharge relay，Described main frame is outside runs relay、Main frame external bypass relay、Main frame external cell electric discharge relay、From machine outside operation relay、It is respectively provided with normally opened contact from machine external bypass relay with from machine external cell electric discharge relay，Described regulated power supply input connects external power source by described on and off switch，The outside relay coil that runs of described main frame is connected described output end of stabilized voltage supply with after the switch series connection of machine operation troubles，Described main frame external bypass relay coil is connected described output end of stabilized voltage supply with after machine bypass breakdown switch series connection，Described main frame external cell electric discharge relay coil is connected described output end of stabilized voltage supply after connecting from machine battery low-voltage switches，Described switch with main frame operation troubles from machine outside operation relay coil is connected described output end of stabilized voltage supply after series connection，Described bypass after breakdown switch is connected with main frame from machine external bypass relay coil is connected described output end of stabilized voltage supply，Described electric discharge after relay coil is connected with cell host low-voltage switches from machine external cell is connected described output end of stabilized voltage supply，Run relay normally open contact connect after outside with main frame of described main frame internal operation relay coil is connected described output end of stabilized voltage supply，Described main frame internal by-pass relay coil is connected described output end of stabilized voltage supply after connecting with main frame external bypass relay normally open contact，Described main frame internal cell electric discharge relay coil is connected described output end of stabilized voltage supply after the electric discharge relay normally open contact series connection of main frame external cell，Described from machine internal operation relay coil with from machine is outside run relay normally open contact series connection after be connected described output end of stabilized voltage supply，Described from machine internal by-pass relay coil with from machine external bypass relay normally open contact connect after be connected described output end of stabilized voltage supply，Described from machine internal cell electric discharge relay coil with from machine external cell electric discharge relay normally open contact connect after be connected described output end of stabilized voltage supply.
Further, native system also includes power supply indicator and fuse, and described power supply indicator connects the outfan of described regulated power supply, and described fuse is serially connected with in the output loop of described regulated power supply.
Further, the output voltage of described regulated power supply is direct current 24V.
Owing to two-shipper fault of uninterrupted power source of the present invention judges that switched system have employed technique scheme, i.e. main frame and when one, machine is properly functioning in native system, another is in holding state, in operation, one is broken down, the part of another corresponding fault puts into operation, wherein main frame generation operation troubles, system will be switched to operational mode from machine from standby mode automatically, when main frame bypass is broken down, system automatically switches and puts into operation from machine bypass, main frame storage battery forces down, and system will put into discharge condition from the accumulator of machine automatically.Whereas if from machine generation corresponding failure, main frame puts into appropriate section equally and runs.Native system overcomes the defect that tradition uninterrupted power source two-shipper runs simultaneously, uninterrupted power source two-shipper effectively can be used in combination, the faulty component of two-shipper is the most standby, switching is only needed to put into the corresponding part of guest machine, improve the service life of uninterrupted power source, it is ensured that the reliability and stability of load supplying.
Accompanying drawing explanation
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is that two-shipper fault of uninterrupted power source of the present invention judges switched system circuit diagram.
Detailed description of the invention
nullEmbodiment is as shown in Figure 1，Two-shipper fault of uninterrupted power source of the present invention judges that switched system includes main frame 1 and from machine 2，Described main frame 1 includes main frame internal operation relay A11、Main frame internal by-pass relay A12、Main frame internal cell electric discharge relay A13、Main frame operation troubles switch K11、Main frame bypass breakdown switch K12 and cell host low-voltage switches K13，Described include from machine internal operation relay A21 from machine 2、From machine internal by-pass relay A22、From machine internal cell electric discharge relay A23、K21 is switched from machine operation troubles、From machine bypass breakdown switch K22 with from machine battery low-voltage switches K23，Native system also includes on and off switch Q1、Regulated power supply G1、Main frame is outside runs relay J 11、Main frame external bypass relay J 12、Main frame external cell electric discharge relay J 13、From machine outside operation relay J 21、From machine external bypass relay J 22 with from machine external cell electric discharge relay J 23，Described main frame is outside runs relay J 11、Main frame external bypass relay J 12、Main frame external cell electric discharge relay J 13、From machine outside operation relay J 21、It is respectively provided with normally opened contact C11 from machine external bypass relay J 22 with from machine external cell electric discharge relay J 23、C12、C13、C21、C22、C23，Described regulated power supply G1 input connects external power source by described on and off switch Q1，Outside relay J 11 coil that runs of described main frame is connected described regulated power supply G1 outfan with after the switch K21 series connection of machine operation troubles，Described main frame external bypass relay J 12 coil is connected described regulated power supply G1 outfan with after machine bypass breakdown switch K22 series connection，Described main frame external cell electric discharge relay J 13 coil is connected described regulated power supply G1 outfan after connecting from machine battery low-voltage switches K23，Described switch after K11 connects with main frame operation troubles from machine outside operation relay J 21 coil is connected described regulated power supply G1 outfan，Described bypass after breakdown switch K12 connects with main frame from machine external bypass relay J 22 coil is connected described regulated power supply G1 outfan，Described electric discharge after relay J 23 coil is connected with cell host low-voltage switches K13 from machine external cell is connected described regulated power supply G1 outfan，Described main frame internal operation relay A11 coil run relay normally open contact C11 outside with main frame is connected described regulated power supply G1 outfan after connecting，Described main frame internal by-pass relay A12 coil is connected described regulated power supply G1 outfan after connecting with main frame external bypass relay normally open contact C12，Described main frame internal cell electric discharge relay A13 coil is connected described regulated power supply G1 outfan after the electric discharge relay normally open contact C13 series connection of main frame external cell，Described from machine internal operation relay A21 coil with from machine is outside run relay normally open contact C21 series connection after be connected described regulated power supply G1 outfan，Described from machine internal by-pass relay A22 coil with from machine external bypass relay normally open contact C22 connect after be connected described regulated power supply G1 outfan，Described from machine internal cell electric discharge relay A23 coil with from machine external cell electric discharge relay normally open contact C23 connect after be connected described regulated power supply G1 outfan.
Further, native system also includes power supply indicator H0 and fuse F1, F2, and described power supply indicator HO connects the outfan of described regulated power supply G1, and described fuse F1, F2 are serially connected with in the output loop of described regulated power supply G1.When regulated power supply is powered normal, power supply indicator Chang Liang, when regulated power supply abnormal failure, power supply indicator extinguishes, and visual cues native system is powered the most normal；Fuse provides effectively protection, when subsequent conditioning circuit is short-circuited fault, fuse action to native system, it is to avoid regulated power supply damages.
Further, the output voltage of described regulated power supply G1 is direct current 24V.Regulated power supply is AC-DC voltage stabilizer, provides the constant voltage of voltage regulation of direct current 24V for system, as the driving power supply of each relay.
In native system, when there is operation troubles in main frame 1, its main frame operation troubles switch K11 Guan Bi, obtain electric from outside relay J 21 coil that runs of machine, its normally opened contact C21 closes, and obtains electric from machine internal operation relay A21 coil so that put into operation from holding state from machine 2；When there is bypass fault in main frame 1, its main frame bypass breakdown switch K12 Guan Bi, obtain electric from machine external bypass relay J 22 coil, its normally opened contact C22 closes, and obtains electric from machine internal by-pass relay A22 coil so that bypass from machine 2 and put into operation from holding state；When main frame 1 cell voltage reduces, cell host low-voltage switches K13 closes, and obtains electric from machine external cell electric discharge relay J 23 coil, and its normally opened contact C23 closes, obtain electric from machine internal cell electric discharge relay A23 coil, put into operation from holding state from the battery of machine 2.Equally, when there is corresponding failure from machine 2, by native system, main frame 1 appropriate section is put into operation, so that main frame 1 and mutually backing up from machine 2, and switch the part corresponding with fault, make main frame 1 and can effectively be used in combination from machine 2, overcome under Dual OMU Servers Mode the defect that two uninterrupted power sources are required for running simultaneously, the uninterrupted power source of two platform independent can be accurately positioned faulty component by signal detection by native system, and only switching puts into the corresponding part of guest machine, this new pattern can be greatly improved the service life of uninterrupted power source, ensure that the reliability and stability of electric power system.
Claims (3)
- null1. a two-shipper fault of uninterrupted power source judges switched system，Including main frame with from machine，Described main frame includes main frame internal operation relay、Main frame internal by-pass relay、Main frame internal cell electric discharge relay、Main frame operation troubles switchs、Main frame bypass breakdown switch and cell host low-voltage switches，Described include from machine internal operation relay from machine、From machine internal by-pass relay、From machine internal cell electric discharge relay、Switch from machine operation troubles、From machine bypass breakdown switch with from machine battery low-voltage switches，It is characterized in that: native system also includes on and off switch、Regulated power supply、Main frame is outside runs relay、Main frame external bypass relay、Main frame external cell electric discharge relay、From machine outside operation relay、From machine external bypass relay with from machine external cell electric discharge relay，Described main frame is outside runs relay、Main frame external bypass relay、Main frame external cell electric discharge relay、From machine outside operation relay、It is respectively provided with normally opened contact from machine external bypass relay with from machine external cell electric discharge relay，Described regulated power supply input connects external power source by described on and off switch，The outside relay coil that runs of described main frame is connected described output end of stabilized voltage supply with after the switch series connection of machine operation troubles，Described main frame external bypass relay coil is connected described output end of stabilized voltage supply with after machine bypass breakdown switch series connection，Described main frame external cell electric discharge relay coil is connected described output end of stabilized voltage supply after connecting from machine battery low-voltage switches，Described switch with main frame operation troubles from machine outside operation relay coil is connected described output end of stabilized voltage supply after series connection，Described bypass after breakdown switch is connected with main frame from machine external bypass relay coil is connected described output end of stabilized voltage supply，Described electric discharge after relay coil is connected with cell host low-voltage switches from machine external cell is connected described output end of stabilized voltage supply，Run relay normally open contact connect after outside with main frame of described main frame internal operation relay coil is connected described output end of stabilized voltage supply，Described main frame internal by-pass relay coil is connected described output end of stabilized voltage supply after connecting with main frame external bypass relay normally open contact，Described main frame internal cell electric discharge relay coil is connected described output end of stabilized voltage supply after the electric discharge relay normally open contact series connection of main frame external cell，Described from machine internal operation relay coil with from machine is outside run relay normally open contact series connection after be connected described output end of stabilized voltage supply，Described from machine internal by-pass relay coil with from machine external bypass relay normally open contact connect after be connected described output end of stabilized voltage supply，Described from machine internal cell electric discharge relay coil with from machine external cell electric discharge relay normally open contact connect after be connected described output end of stabilized voltage supply.
- Two-shipper fault of uninterrupted power source the most according to claim 1 judges switched system, it is characterized in that: native system also includes power supply indicator and fuse, described power supply indicator connects the outfan of described regulated power supply, and described fuse is serially connected with in the output loop of described regulated power supply.
- Two-shipper fault of uninterrupted power source the most according to claim 1 judges switched system, it is characterised in that: the output voltage of described regulated power supply is direct current 24V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510339496.XA CN106329701B (en) | 2015-06-18 | 2015-06-18 | Double-machine uninterrupted power supply fault judging and switching system |
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| CN201510339496.XA CN106329701B (en) | 2015-06-18 | 2015-06-18 | Double-machine uninterrupted power supply fault judging and switching system |
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| CN106329701A true CN106329701A (en) | 2017-01-11 |
| CN106329701B CN106329701B (en) | 2021-08-13 |
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| CN201510339496.XA Active CN106329701B (en) | 2015-06-18 | 2015-06-18 | Double-machine uninterrupted power supply fault judging and switching system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507404A (en) * | 2017-07-14 | 2021-10-15 | 亚德诺半导体集团 | Adaptive application of multiple power supplies in a communication system |
| CN115070746A (en) * | 2022-08-22 | 2022-09-20 | 深圳时代能创能源科技有限公司 | Device for solving double-active signal switching |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320918A (en) * | 2008-03-18 | 2008-12-10 | 深圳和而泰智能控制股份有限公司 | Bypass protection circuit and method |
| CN101764427A (en) * | 2010-02-04 | 2010-06-30 | 河南省电力公司新乡供电公司 | Automatic power switching device |
| CN201656549U (en) * | 2010-03-17 | 2010-11-24 | 邯钢集团邯宝钢铁有限公司 | Automatic switching device of UPS |
| CN201918792U (en) * | 2010-12-07 | 2011-08-03 | 河北先控电源设备有限公司 | Uninterrupted power system (UPS) |
| CN202127281U (en) * | 2011-06-24 | 2012-01-25 | 慈溪市供电局 | Non-power-off device |
| CN202679065U (en) * | 2012-07-19 | 2013-01-16 | 江西赣州供电公司 | An automatic switching device of communication DC power supplies |
| CN203387294U (en) * | 2013-07-24 | 2014-01-08 | 沈阳鼓风机集团自动控制系统工程有限公司 | Electrical control device capable of realizing uninterrupted power source power supply |
| KR101367611B1 (en) * | 2012-12-28 | 2014-02-28 | (주)볼카텍 | Power distribution system |
| CN103872753A (en) * | 2014-04-04 | 2014-06-18 | 核工业理化工程研究院 | Wiring circuit for UPS bypass standby power supply |
| CN103904726A (en) * | 2012-12-27 | 2014-07-02 | 通用电气公司 | System for common redundant bypass feed paths in uninterruptible power supplies |
-
2015
- 2015-06-18 CN CN201510339496.XA patent/CN106329701B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101320918A (en) * | 2008-03-18 | 2008-12-10 | 深圳和而泰智能控制股份有限公司 | Bypass protection circuit and method |
| CN101764427A (en) * | 2010-02-04 | 2010-06-30 | 河南省电力公司新乡供电公司 | Automatic power switching device |
| CN201656549U (en) * | 2010-03-17 | 2010-11-24 | 邯钢集团邯宝钢铁有限公司 | Automatic switching device of UPS |
| CN201918792U (en) * | 2010-12-07 | 2011-08-03 | 河北先控电源设备有限公司 | Uninterrupted power system (UPS) |
| CN202127281U (en) * | 2011-06-24 | 2012-01-25 | 慈溪市供电局 | Non-power-off device |
| CN202679065U (en) * | 2012-07-19 | 2013-01-16 | 江西赣州供电公司 | An automatic switching device of communication DC power supplies |
| CN103904726A (en) * | 2012-12-27 | 2014-07-02 | 通用电气公司 | System for common redundant bypass feed paths in uninterruptible power supplies |
| KR101367611B1 (en) * | 2012-12-28 | 2014-02-28 | (주)볼카텍 | Power distribution system |
| CN203387294U (en) * | 2013-07-24 | 2014-01-08 | 沈阳鼓风机集团自动控制系统工程有限公司 | Electrical control device capable of realizing uninterrupted power source power supply |
| CN103872753A (en) * | 2014-04-04 | 2014-06-18 | 核工业理化工程研究院 | Wiring circuit for UPS bypass standby power supply |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507404A (en) * | 2017-07-14 | 2021-10-15 | 亚德诺半导体集团 | Adaptive application of multiple power supplies in a communication system |
| CN113507404B (en) * | 2017-07-14 | 2022-11-29 | 亚德诺半导体国际无限责任公司 | Apparatus and method for adaptively utilizing multiple power sources in a communication system |
| CN115070746A (en) * | 2022-08-22 | 2022-09-20 | 深圳时代能创能源科技有限公司 | Device for solving double-active signal switching |
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| CN106329701B (en) | 2021-08-13 |
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