CN106329701B - Double-machine uninterrupted power supply fault judging and switching system - Google Patents
Double-machine uninterrupted power supply fault judging and switching system Download PDFInfo
- Publication number
- CN106329701B CN106329701B CN201510339496.XA CN201510339496A CN106329701B CN 106329701 B CN106329701 B CN 106329701B CN 201510339496 A CN201510339496 A CN 201510339496A CN 106329701 B CN106329701 B CN 106329701B
- Authority
- CN
- China
- Prior art keywords
- relay
- power supply
- slave
- machine
- voltage
- 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.)
- Active
Links
Images
Classifications
-
- 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
-
- 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
Landscapes
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses a double-machine uninterrupted power supply fault judging and switching system, namely, when one of a main machine and a slave machine in the system normally operates, the other one is in a standby state, one of the main machine and the slave machine in the operation fails, and the other part corresponding to the fault is put into operation, wherein the main machine fails in operation, the system automatically switches the slave machine from the standby mode to the operation mode, when the bypass of the main machine fails, the system automatically switches the bypass of the slave machine into operation, and when the storage battery voltage of the main machine is low, the system automatically puts the storage battery of the slave machine into a discharging state. On the contrary, if the slave computer has corresponding fault, the master computer is also put into corresponding operation. The system overcomes the defect that the two machines of the traditional uninterrupted power supply operate simultaneously, can effectively combine the two machines of the uninterrupted power supply for use, the fault parts of the two machines are mutually standby, and only the corresponding parts of the standby machines are switched, so that the service life of the uninterrupted power supply is prolonged, and the reliability and the stability of load power supply are ensured.
Description
Technical Field
The invention relates to a double-machine uninterrupted power supply fault judging and switching system.
Background
The uninterruptible power supply is a power supply device which connects a storage battery with a host and converts direct current into commercial power through an inverter module of the host, and is mainly used for providing stable and uninterrupted power supply for computers, computer network systems or other power electronic devices, such as electromagnetic valves, pressure transmitters and the like. When the mains supply is input normally, the uninterrupted power supply supplies the mains supply to a load for use after stabilizing the voltage of the mains supply through the rectification module, and the uninterrupted power supply is an alternating current voltage stabilizer so as to eliminate power supply pollution such as surge, instantaneous high voltage, instantaneous low voltage, electromagnetic noise, frequency offset and the like of the mains supply, improve the quality of the power supply, provide high-quality power supply for the load, and simultaneously charge an internal storage battery through the rectification module; when the commercial power is interrupted due to a fault, the uninterruptible power supply immediately switches the direct current electric energy of the storage battery to the load through the inverter module to continue supplying power, so that the load keeps normal work and the software and hardware of the load are protected from being damaged. Upss typically provide protection against over-voltage or under-voltage.
In order to improve reliability, currently, important equipment adopts a double-machine parallel mode to supply power, namely two uninterruptible power supplies supply power simultaneously, loads are shared by the two uninterruptible power supplies in a balanced manner, and when one uninterruptible power supply fails, the other uninterruptible power supply can supply power continuously. In this mode, both ups must be powered on. The load power supply of the mode is unreasonable, the system cost is improved, and the service life of the uninterrupted power supply is reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-machine uninterrupted power supply fault judging and switching system, which overcomes the defect that the double machines of the traditional uninterrupted power supply run simultaneously, can effectively combine the double machines of the uninterrupted power supply for use, the fault parts of the double machines are mutually standby, and only the corresponding parts of the standby machines are needed to be switched, thereby prolonging the service life of the uninterrupted power supply and ensuring the reliability and stability of load power supply.
In order to solve the technical problems, the dual-machine uninterruptible power supply fault judging and switching system comprises a host machine and a slave machine, wherein the host machine comprises a host machine internal operation relay, a host machine internal bypass relay, a host machine internal battery discharging relay, a host machine operation fault switch, a host machine bypass fault switch and a host machine battery low-voltage switch, the slave machine comprises a slave machine internal operation relay, a slave machine internal bypass relay, a slave machine internal battery discharging relay, a slave machine operation fault switch, a slave machine bypass fault switch and a slave machine battery low-voltage switch, the system also comprises a power switch, a stabilized voltage power supply, a host machine external operation relay, a host machine external bypass relay, a host machine external battery discharging relay, a slave machine external operation relay, a slave machine external bypass relay and a slave machine external battery discharging relay, the host machine external operation relay, the slave machine bypass relay and the slave machine external battery discharging relay are arranged on the host machine, The main engine external bypass relay, the main engine external battery discharging relay, the auxiliary engine external operation relay, the auxiliary engine external bypass relay and the auxiliary engine external battery discharging relay are respectively provided with a normally open contact, the input end of the voltage-stabilized power supply is connected with an external power supply through the power switch, the coil of the main engine external operation relay is connected with the output end of the voltage-stabilized power supply after being connected with the auxiliary engine operation fault switch in series, the coil of the main engine external bypass relay is connected with the output end of the voltage-stabilized power supply after being connected with the auxiliary engine bypass fault switch in series, the coil of the main engine external battery discharging relay is connected with the output end of the voltage-stabilized power supply after being connected with the auxiliary engine operation fault switch in series, the coil of the auxiliary engine external bypass relay is connected with the output end of the voltage-stabilized power supply after being connected with the main engine bypass fault switch in series, the auxiliary machine external battery discharging relay coil is connected with the main machine external battery low-voltage switch in series and then connected with the output end of the voltage-stabilized power supply, the main machine internal operation relay coil is connected with the main machine external operation relay normally-open contact in series and then connected with the output end of the voltage-stabilized power supply, the main machine internal battery discharging relay coil is connected with the main machine external battery discharging relay normally-open contact in series and then connected with the output end of the voltage-stabilized power supply, the auxiliary machine internal operation relay coil is connected with the auxiliary machine external operation relay normally-open contact in series and then connected with the output end of the voltage-stabilized power supply, the auxiliary machine internal battery discharging relay coil is connected with the auxiliary machine external battery discharging relay normally-open contact in series and then connected with the output end of the voltage-stabilized power supply, and the auxiliary machine internal battery discharging relay coil is connected with the auxiliary machine external battery discharging relay normally-open contact in series and then connected with the output end of the auxiliary machine external battery discharging relay normally-open contact And the output end of the voltage-stabilized power supply is connected.
Furthermore, the system also comprises a power indicator lamp and a fuse, wherein the power indicator lamp is connected with the output end of the stabilized voltage power supply, and the fuse is connected in series in the output loop of the stabilized voltage power supply.
Further, the output voltage of the regulated power supply is direct current 24V.
The invention adopts the technical scheme that when one of the host and the slave in the system normally operates, the other one is in a standby state, one of the host and the slave in the operation fails, and the other part corresponding to the failure is put into operation, wherein the host fails in operation, the system automatically switches the slave from the standby mode to the operation mode, when the bypass of the host fails, the system automatically switches the bypass of the slave into operation, the storage battery voltage of the host is low, and the system automatically puts the storage battery of the slave into a discharging state. On the contrary, if the slave computer has corresponding fault, the master computer is also put into corresponding operation. The system overcomes the defect that the two machines of the traditional uninterrupted power supply operate simultaneously, can effectively combine the two machines of the uninterrupted power supply for use, the fault parts of the two machines are mutually standby, and only the corresponding parts of the standby machines are switched, so that the service life of the uninterrupted power supply is prolonged, and the reliability and the stability of load power supply are ensured.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
fig. 1 is a circuit diagram of a dual ups failure determination and switching system according to the present invention.
Detailed Description
Embodiment as shown in fig. 1, the dual-machine uninterruptible power supply failure determination switching system of the present invention includes a master machine 1 and a slave machine 2, where the master machine 1 includes a master machine internal operation relay a11, a master machine internal bypass relay a12, a master machine internal battery discharge relay a13, a master machine operation failure switch K11, a master machine bypass failure switch K12, and a master machine battery low-voltage switch K13, the slave machine 2 includes a slave machine internal operation relay a21, a slave machine internal bypass relay a22, a slave machine internal battery discharge relay a23, a slave machine operation failure switch K21, a slave machine bypass failure switch K22, and a slave machine battery low-voltage switch K23, the system further includes a power switch Q1, a regulated power supply G1, a master machine external operation relay J11, a master machine external bypass relay J12, a master machine external battery discharge relay J13, an external operation relay J21, a slave machine external bypass relay J22, and a slave machine external battery discharge relay J23, the master external operation relay J11, the master external bypass relay J12, the master external battery discharge relay J13, the slave external operation relay J21, the slave external bypass relay J22 and the slave external battery discharge relay J23 are respectively provided with normally open contacts C11, C12, C13, C21, C22 and C23, the input end of the regulated power supply G1 is connected with an external power supply through the power switch Q1, the coil of the master external operation relay J11 is connected with the slave operation fault switch K21 in series and then connected with the output end of the regulated power supply G1, the coil of the master external bypass relay J12 is connected with the slave bypass fault switch K22 in series and then connected with the output end of the regulated power supply G1, the coil of the master external battery discharge relay J13 is connected with the slave battery low voltage switch K23 in series and then connected with the output end of the regulated power supply G1, the coil of the slave external battery discharge relay J21 is connected with the master operation fault switch K11 in series and then connected with the output end of the regulated power supply G1, the coil of the slave external bypass relay J22 is connected with the output end of the stabilized voltage power supply G1 after being connected in series with the master bypass fault switch K12, the coil of the slave external battery discharge relay J23 is connected with the output end of the stabilized voltage power supply G1 after being connected in series with the master battery low voltage switch K13, the coil of the master internal operation relay A11 is connected with the output end of the stabilized voltage power supply G1 after being connected in series with the master external operation relay normally open contact C11, the coil of the master internal bypass relay A12 is connected with the master external bypass relay normally open contact C12 before being connected with the output end of the stabilized voltage power supply G1, the coil of the master internal battery discharge relay A13 is connected with the master external battery discharge relay normally open contact C13 after being connected in series with the stabilized voltage power supply G1, the coil of the slave internal operation relay A21 is connected with the output end of the stabilized voltage power supply G1 after being connected in series with the slave external operation relay contact C21, and the coil of the slave internal bypass relay A22 is connected with a slave external bypass relay normally open contact C22 in series and then connected with the output end of the regulated power supply G1, and the coil of the slave internal battery discharge relay A23 is connected with a slave external battery discharge relay normally open contact C23 in series and then connected with the output end of the regulated power supply G1.
Furthermore, the system also comprises a power indicator lamp H0 and fuses F1 and F2, wherein the power indicator lamp HO is connected with the output end of the regulated power supply G1, and the fuses F1 and F2 are connected in series in the output loop of the regulated power supply G1. When the power supply of the stabilized voltage power supply is normal, the power indicator lamp is normally on, and when the stabilized voltage power supply has an abnormal fault, the power indicator lamp is turned off to visually prompt whether the power supply of the system is normal or not; the fuse provides effective protection to this system, and when follow-up circuit short circuit fault took place, the fuse action avoided constant voltage power supply to damage.
Further, the output voltage of the regulated power supply G1 is dc 24V. The stabilized voltage supply is an AC/DC stabilized voltage supply, provides DC 24V constant stabilized voltage for the system and is used as a driving power supply of each relay.
In the system, when the main engine 1 has an operation fault, the main engine operation fault switch K11 is closed, the coil of the auxiliary engine external operation relay J21 is electrified, the normally open contact C21 is closed, and the coil of the auxiliary engine internal operation relay A21 is electrified, so that the auxiliary engine 2 is put into operation from a standby state; when the host 1 has a bypass fault, the host bypass fault switch K12 is closed, the coil of the slave external bypass relay J22 is electrified, the normally open contact C22 is closed, and the coil of the slave internal bypass relay A22 is electrified, so that the bypass of the slave 2 is put into operation from a standby state; when the battery voltage of the host machine 1 is reduced, the low-voltage switch K13 of the host machine battery is closed, the coil of the battery discharging relay J23 outside the slave machine is electrified, the normally open contact C23 of the coil is closed, the coil of the battery discharging relay A23 inside the slave machine is electrified, and the battery of the slave machine 2 is put into operation from a standby state. Similarly, when the slave 2 has a corresponding fault, the system enables the corresponding part of the host 1 to be put into operation, so that the host 1 and the slave 2 are mutually backed up, and the part corresponding to the fault is switched, so that the host 1 and the slave 2 can be effectively combined for use, the defect that two uninterrupted power supplies need to be simultaneously operated in a dual-machine mode is overcome, the system can accurately position the fault part of the two independent uninterrupted power supplies through signal detection, and only switches the corresponding part to be put into a standby machine, and the new mode can greatly prolong the service life of the uninterrupted power supplies and ensure the reliability and the stability of a power supply system.
Claims (3)
1. The utility model provides a duplex uninterrupted power source fault judges switched systems, includes host computer and slave computer, the host computer includes the inside relay of operation of host computer, the inside bypass relay of host computer, the inside battery of host computer relay that discharges, the host computer operation fault switch, the inside bypass fault switch of host computer and the low voltage switch of host computer battery, the slave computer includes the inside relay of operation of slave computer, the inside bypass relay of slave computer, the inside battery of slave computer relay that discharges, the operation fault switch of slave computer, the bypass fault switch of slave computer and the low voltage switch of slave computer battery, its characterized in that: the system also comprises a power switch, a stabilized voltage power supply, a host external operation relay, a host external bypass relay, a host external battery discharge relay, a slave external operation relay, a slave external bypass relay and a slave external battery discharge relay, wherein the host external operation relay, the host external bypass relay, the host external battery discharge relay, the slave external operation relay, the slave external bypass relay and the slave external battery discharge relay are respectively provided with a normally open contact, the input end of the stabilized voltage power supply is connected with an external power supply through the power switch, a host external operation relay coil is connected with the slave operation fault switch after being connected in series, the stabilized voltage power supply output end is connected with the host external bypass relay coil after being connected with the slave bypass fault switch in series, the host external battery discharge relay coil is connected with the slave battery low-voltage switch after being connected in series, the stabilized voltage power supply output end is connected with the stabilized voltage power supply output end The output end of the voltage-stabilized power supply is connected after the coil of the relay operated from the outside of the machine is connected in series with the main engine operation fault switch, the output end of the voltage-stabilized power supply is connected after the coil of the bypass relay operated from the outside of the machine is connected in series with the main engine bypass fault switch, the output end of the voltage-stabilized power supply is connected after the coil of the battery discharge relay discharged from the outside of the machine is connected in series with the low-voltage switch of the main engine battery, the output end of the voltage-stabilized power supply is connected after the coil of the relay operated from the inside of the machine is connected in series with the normally open contact of the relay operated from the outside of the machine, the output end of the voltage-stabilized power supply is connected after the coil of the battery discharge relay discharged from the inside of the machine is connected in series with the normally open contact of the battery discharge relay operated from the outside of the machine, the output end of the voltage-stabilized power supply is connected after the coil of the relay operated from the inside of the machine is connected in series with the normally open contact of the relay operated from the outside of the machine, the auxiliary machine internal bypass relay coil is connected with the auxiliary machine external bypass relay normally open contact in series and then connected with the output end of the voltage stabilizing power supply, and the auxiliary machine internal battery discharge relay coil is connected with the auxiliary machine external battery discharge relay normally open contact in series and then connected with the output end of the voltage stabilizing power supply.
2. The system according to claim 1, wherein the system further comprises: the system further comprises a power indicator and a fuse, wherein the power indicator is connected with the output end of the stabilized voltage power supply, and the fuse is connected in series in the output loop of the stabilized voltage power supply.
3. The system according to claim 1, wherein the system further comprises: the output voltage of the 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106329701A CN106329701A (en) | 2017-01-11 |
| CN106329701B true CN106329701B (en) | 2021-08-13 |
Family
ID=57732382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510339496.XA Active CN106329701B (en) | 2015-06-18 | 2015-06-18 | Double-machine uninterrupted power supply fault judging and switching system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106329701B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10852799B2 (en) * | 2017-07-14 | 2020-12-01 | Analog Devices Global Unlimited Company | Adaptive use of multiple power supplies in communication systems |
| 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 (5)
| 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 |
| 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 |
| KR101367611B1 (en) * | 2012-12-28 | 2014-02-28 | (주)볼카텍 | Power distribution system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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) |
| US9831675B2 (en) * | 2012-12-27 | 2017-11-28 | General Electric Company | System for common redundant bypass feed paths in uninterruptible 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 |
| 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 |
-
2015
- 2015-06-18 CN CN201510339496.XA patent/CN106329701B/en active Active
Patent Citations (5)
| 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 |
| 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 |
| KR101367611B1 (en) * | 2012-12-28 | 2014-02-28 | (주)볼카텍 | Power distribution system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106329701A (en) | 2017-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208015445U (en) | A kind of active and standby electric automatic switchover of fire alarm control unit, detection and protection circuit | |
| JP3089153U (en) | DC uninterruptible power supply with power failure lighting function | |
| CN105162125A (en) | Alternating/direct current power supply device and uninterruptible power supply system | |
| JP6288722B2 (en) | Battery system | |
| CN102122839A (en) | Electric-dazzling prevention auxiliary power supply in low-voltage alternating current control loop and power supply method thereof | |
| CN102709116B (en) | Alternating-current contactor in low-voltage alternating-current control circuit and control method of alternating-current contactor | |
| KR101021598B1 (en) | Device of voltage compensation for a momentary power failure | |
| CN106329701B (en) | Double-machine uninterrupted power supply fault judging and switching system | |
| CN101710728A (en) | Method and device for supplying power to chassis equipment of communication machine room | |
| WO2018113704A1 (en) | A switching arrangement for switching between two inputs, equipment, system and a method | |
| CN103840543A (en) | Power supply method and device for UPS backup battery packs | |
| CN205610335U (en) | Uninterrupted power source system with remind function | |
| CN205693433U (en) | The redundant backup circuit of ups power system | |
| TWI472775B (en) | Dc uninterruptible power system and method for detecting abnormal voltage | |
| KR20090037554A (en) | Uninterruptible power supply a sequential control type | |
| EP3014739B1 (en) | Interruption of output power and auxiliary power | |
| CN203301212U (en) | Dual standby saving type DC power supply system | |
| EP4030585A1 (en) | Intelligent load control to support peak load demands in electrical circuits | |
| CN210350851U (en) | Medical distribution box | |
| JP2013090524A (en) | Uninterruptible power supply system | |
| CN106130175A (en) | A kind of ups power and the computer with power-off protection | |
| TW201935803A (en) | A fail-safe circuit for UPS and a UPS device | |
| CN216252262U (en) | Stand-alone UPS power supply and electrical equipment based on STS static switch | |
| CN106655461B (en) | Uninterruptible power supply system | |
| CN103904773A (en) | Bypass device of power distribution equipment and control method of power distribution network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |