CN203027011U - Hot-standby power supply for parallel redundancy of plurality of current type inverters - Google Patents
Hot-standby power supply for parallel redundancy of plurality of current type inverters Download PDFInfo
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- CN203027011U CN203027011U CN2012206790861U CN201220679086U CN203027011U CN 203027011 U CN203027011 U CN 203027011U CN 2012206790861 U CN2012206790861 U CN 2012206790861U CN 201220679086 U CN201220679086 U CN 201220679086U CN 203027011 U CN203027011 U CN 203027011U
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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 utility model relates to a scheme for parallel redundancy of current type inverters, and belongs to the field of electric devices. A hot-standby power supply for parallel redundancy of a plurality of current type inverters is characterized by comprising three current type inverters, wherein the three current type inverters are respectively connected with a contactor, are connected together in parallel and are connected with a load; the current type inverters with the contactors are respectively a first device, a second device and a third device; a communicating line is connected between every two devices; each device is provided with a contactor-state detecting contact, and is connected with another device by using a wire according to the clockwise direction; each device comprises an operating-state control module which comprises an operating-state information acquisition module, an information judging module and an operating-state output control module; and the operating-state output control module is connected with the contactor. The hot-standby power supply has the advantage that the states of the inverters can be controlled in real time and can be outputted stably.
Description
Technical field
The utility model relates to many inverter parallel redundancies, relates in particular to the hot standby power supply by many current source inverter parallel redundancys.
Background technology
Along with the development of power electronic technology, the application of Single-Phase Inverter Source is more and more extensive, and many inverter parallel redundancies also become one of effective ways that improve reliability.Many traditional inverter parallels mostly are voltage source inverter, and every inverter control self port output voltage connects by connection between inverter, after an equipment fault, and another equipment investment operation.The unexpected disconnection of connection may cause the situation that two equipment are worked simultaneously to occur, the port output voltage amplitude is identical separately if two equipment output voltage Phase synchronization, two equipment are controlled, and can not work the mischief to load, if but have not synchronously, be easy to work the mischief.
And for the parallel redundancy of current source inverter, two equipment move simultaneously and do not allow to occur, though two current inverter output current Phase synchronization, every equipment output rated current, the addition of two equipment output currents, load will damage because of the rated current of twice.Therefore when design current type inverter parallel redundancy except considering under nominal situation, be communication many control logics that inverter parallel switches when normal, also to consider the situation when connection between equipment or the unexpected disconnection of other connecting lines, need still in this case to guarantee that not having two equipment moves together, ensure simultaneously an equipment operation as far as possible.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of hot standby power supply by many current source inverter parallel redundancys, the parallel redundancy that solves many current source inverters now is easily because of connection or other connecting lines are unexpected when disconnecting, the defective that the load meeting damages because of the rated current of twice.
Technical scheme
a kind of hot standby power supply by many current source inverter parallel redundancys, it is characterized in that: comprise it being three current source inverters, every of described three current source inverter all are connected with a contactor, and be connected in parallel by contactor and be connected with load, current source inverter with contactor is respectively the first equipment, the second equipment and the 3rd equipment, three equipment are connected with connection between any two, each equipment has a contactor state-detection contact, use in the direction of the clock wire and another equipment connection, the contactor state-detection contact of the first equipment is connected with the second equipment, the contactor state-detection contact of the second equipment is connected with the 3rd equipment, the contactor state-detection contact of the 3rd equipment is connected with the first equipment, described each equipment comprises the running status control module, and the running status control module comprises operating state information acquisition module, signal judgement module and running status output control module, and described running status output control module is connected with contactor.
Described contactor is set to often open, contactor state-detection contact is normally-closed contact, when equipment is in standby and running status, operation state controlling module controls contactor is closed, contactor state-detection contact separately, when equipment is in malfunction, control contactor separates, the contactor state-detection closing of contact.
Beneficial effect
hot standby power acquisition by many current source inverter parallel redundancys of the present utility model reaches connecting communication in twos with many inverter parallels, come controlling run state and conversion according to the state of upper and lower computer and the state of self, can know and the output of control inverter in real time, thereby in the time of guaranteeing not can because of connection or other connecting lines are unexpected to disconnect, the harm that causes load out of control of many inverters, scheme of the present utility model can guarantee under any circumstance, many inverters can according to circumstances carry out the adjustment of state, guarantee the normal and stable of hot standby power supply, thereby steady load.
Description of drawings
Fig. 1 is the schematic diagram that once is electrically connected of the present utility model.
Fig. 2 communication of the present utility model, contacts of contactor detection line connection diagram.
Embodiment
Below in conjunction with specific embodiments and the drawings, further set forth the utility model.
the utility model proposes a kind of hot standby power supply by three current source inverter parallel redundancys, as accompanying drawing 1, shown in accompanying drawing 2, comprise three current source inverters, every of described three current source inverter all are connected with a contactor, and be connected in parallel by contactor and be connected with load, current source inverter with contactor is respectively the first equipment, the second equipment and the 3rd equipment, three equipment are connected with connection between any two, each equipment has a contactor state-detection contact, use in the direction of the clock wire and another equipment connection, the contactor state-detection contact of the first equipment is connected with the second equipment, the contactor state-detection contact of the second equipment is connected with the 3rd equipment, the contactor state-detection contact of the 3rd equipment is connected with the first equipment, described each equipment comprises the running status control module, and the running status control module comprises operating state information acquisition module, signal judgement module and running status output control module, and described running status output control module is connected with contactor.
Described contactor is set to often open, contactor state-detection contact is normally-closed contact, when equipment is in standby and running status, operation state controlling module controls contactor is closed, contactor state-detection contact separately, when equipment is in malfunction, control contactor separates, the contactor state-detection closing of contact.
Connection is used for the running state information of two equipment of transmission, makes two equipment that are connected know each other operating state.
In such scheme, every equipment can be done the state conversion according to the operating state of other two equipment and in conjunction with self operating state.Take the second equipment as example: the effective status of detectable the first equipment has 5 kinds, be respectively communication normal-standby, communication be normal-operation, communication be normal-fault, detect the closing of contact, detect the contact separately without communication-contactor without communication-contactor; The effective status of detectable the 3rd equipment has 4 kinds: be respectively communication normal-standby, communication be normal-operation, communication be normal-fault, without communication; The state of the second equipment self has 3 kinds: be respectively standby, operation, fault.The operating state conversion pre-set according to above 5X4X3=60 kind assembled state of the second equipment, the first equipment and the 3rd equipment are in like manner.
The present embodiment course of work is as follows:
According to top narration, will be according to 60 kinds of pre-set operating state conversions of assembled state, still take the second equipment as example, when the second equipment is in malfunction, no matter which kind of state other equipment are in, the second equipment all keeps malfunction, and therefore the actual combinatorial logic state that will consider is the 2X5X4=40 kind.This moment, the second equipment was the machine, and the first equipment is host computer, and the 3rd equipment is slave computer.When the machine was in standby, control command for this state of maintenance, the machine kept holding state; The machine is in standby, control command for to NextState the time, and the machine can be delayed time and be entered running status after 350ms; When the machine was in operation, control command for this state of maintenance, the machine kept running status; The machine is in operation, control command is that when arriving NextState, the machine enters into malfunction immediately.
See the following form in detail and set and the conversion list into the operating state of various situations is corresponding, wherein with the 29th behavior example explanation: local state is in running status, host computer is in malfunction, slave computer is in holding state, the machine preset state for keeping this state, namely keeps running status in this case.
As follows according to the concrete transform instances of upper table.
(1) each communication is normal, the first device fails.
Before fault:
The information that the second equipment receives is: the machine-standby; Host computer-operation; Slave computer-standby.This kind situation the machine keeps standby.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-operation.This kind situation the machine keeps standby.
In fault:
The information that the second equipment receives is: the machine-standby; Host computer-fault; Slave computer-standby.This kind situation the machine time-delay 350ms switches to operation (corresponding the first equipment output contactor of this delay time divides ETAD expected time of arrival and departure) from standby.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-fault.This kind situation the machine keeps standby.
After fault:
The information that the second equipment receives is: the machine-operation; Host computer-fault; Slave computer-standby.This kind situation the machine keeps operation.
The information that the 3rd equipment receives is: the machine-standby; Host computer-operation; Slave computer-fault.This kind situation the machine keeps standby.
(2) first equipment normally move, and the first equipment and the second device talk line are disconnected, and the first equipment contactor condition line normally connects.
Before fault:
The information that the second equipment receives is: the machine-standby; Host computer-operation; Slave computer-standby.This kind situation the machine keeps standby.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-operation.This kind situation the machine keeps standby.
After in fault:
The information that the second equipment receives is: the machine-standby; Host computer-communicating interrupt (contactor is closed); Slave computer-standby.This kind situation the machine keeps standby.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-operation.This kind situation the machine keeps standby.
(3) in situation (2), the first equipment enters malfunction
Before fault:
The information that the second equipment receives is: the machine-standby; Host computer-communicating interrupt (contactor is closed); Slave computer-standby.This kind situation the machine keeps standby.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-operation.This kind situation the machine keeps standby.
In fault:
The information that the second equipment receives is: the machine-standby; Host computer-communicating interrupt (contactor separately); Slave computer-standby.This kind situation the machine switches to operation.
The information that the 3rd equipment receives is: the machine-standby; Host computer-standby; Slave computer-fault.This kind situation the machine keeps standby.
After fault
The information that the second equipment receives is: the machine-operation; Host computer-communicating interrupt (contactor separately); Slave computer-standby.The machine keeps operation.
The information that the 3rd equipment receives is: the machine-standby; Host computer-operation; Slave computer-fault.This kind situation the machine keeps standby.
Claims (2)
1. hot standby power supply by many current source inverter parallel redundancys, it is characterized in that: comprise three current source inverters, every of described three current source inverter all are connected with a contactor, and be connected in parallel by contactor and be connected with load, current source inverter with contactor is respectively the first equipment, the second equipment and the 3rd equipment, three equipment are connected with connection between any two, each equipment has a contactor state-detection contact, use in the direction of the clock wire and another equipment connection, the contactor state-detection contact of the first equipment is connected with the second equipment, the contactor state-detection contact of the second equipment is connected with the 3rd equipment, the contactor state-detection contact of the 3rd equipment is connected with the first equipment, described each equipment comprises the running status control module, and the running status control module comprises operating state information acquisition module, signal judgement module and running status output control module, and described running status output control module is connected with contactor.
2. the hot standby power supply by many current source inverter parallel redundancys as claimed in claim 1, it is characterized in that: described contactor is set to often open, contactor state-detection contact is normally-closed contact, when equipment is in standby and running status, operation state controlling module controls contactor is closed, contactor state-detection contact separately, when equipment is in malfunction, control contactor separates, the contactor state-detection closing of contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206790861U CN203027011U (en) | 2012-12-10 | 2012-12-10 | Hot-standby power supply for parallel redundancy of plurality of current type inverters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206790861U CN203027011U (en) | 2012-12-10 | 2012-12-10 | Hot-standby power supply for parallel redundancy of plurality of current type inverters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203027011U true CN203027011U (en) | 2013-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206790861U Expired - Fee Related CN203027011U (en) | 2012-12-10 | 2012-12-10 | Hot-standby power supply for parallel redundancy of plurality of current type inverters |
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| Country | Link |
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| CN (1) | CN203027011U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610238A (en) * | 2016-02-04 | 2016-05-25 | 北京宇航系统工程研究所 | Redundant architecture-based power distribution system and power distribution method for intelligent network |
-
2012
- 2012-12-10 CN CN2012206790861U patent/CN203027011U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610238A (en) * | 2016-02-04 | 2016-05-25 | 北京宇航系统工程研究所 | Redundant architecture-based power distribution system and power distribution method for intelligent network |
| CN105610238B (en) * | 2016-02-04 | 2018-06-01 | 北京宇航系统工程研究所 | A kind of intelligent network distribution system and distribution method based on redundancy structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20211210 |
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| CF01 | Termination of patent right due to non-payment of annual fee |