CN206060346U - High-power inverter dual power supply seamless switching device - Google Patents
High-power inverter dual power supply seamless switching device Download PDFInfo
- Publication number
- CN206060346U CN206060346U CN201620992799.1U CN201620992799U CN206060346U CN 206060346 U CN206060346 U CN 206060346U CN 201620992799 U CN201620992799 U CN 201620992799U CN 206060346 U CN206060346 U CN 206060346U
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- CN
- China
- Prior art keywords
- power supply
- relay
- source
- switching device
- load
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- 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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Classifications
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Landscapes
- Inverter Devices (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
This utility model belongs to photovoltaic apparatus field, more particularly to a kind of high-power inverter dual power supply seamless switching device.High-power inverter dual power supply seamless switching device, which includes that the first power supply and second source, the first power supply and second source are connected with load, it is characterised in that：The normally opened contact of the first relay is provided between the first described power supply and load, first relay is connected with the first power supply, the normally opened contact of the second relay is provided between described second source and load, second relay is connected with second source, the normally-closed contact of the first relay of control break-make is additionally provided between the second described relay and second source, the two ends of described load 7 are provided with storage capacitor.This utility model devises double-power supply switching device, and the simple structure of switching device, the coefficient of stability are high, long service life and strong antijamming capability and low cost.
Description
Technical field
This utility model belongs to photovoltaic apparatus field, more particularly to a kind of high-power inverter dual power supply seamless switching dress
Put.
Background technology
High-power inverter causes power network fluctuation and generated energy loss to prevent high-volume from shutting down, and needs inverter to have
Two-way control power supply is powered.This dual power supply need to possess automatic switching function and seamless switching (switching time is extremely short).
In the market double-power supply switching device mainly using biserial combined type contact, drive mechanism, micro machine energy pre-storage,
And Controlled by micro computer technology.Concrete principle is to two-way supply voltage/electric current while detecting, when wherein power supply goes out all the way
Existing overtension or too low, control chip are issued by command adapted thereto, drive electric operating mechanism to disconnect this road exception power supply, allow
Another road normal power source adhesive.This kind of mode has following some weak point：
(1) control chip, in industrial environment, inevitably runs into the interference such as power-supply fluctuation, electromagenetic wave radiation, such as
The abnormal conditions such as the appearance deadlock of fruit single-chip microcomputer, program fleet will result in controller and not work or delay work.
(2) control circuit is complicated, and stability is relatively poor, and fault rate is higher.
(3) due to being that motor drive mechanism controls chopper, service life is relatively low.
(4) internal to have motor and various mechanical transmission structures, cost is costly.
The content of the invention
This utility model is directed to the deficiencies in the prior art, and this utility model devises double-power supply switching device, switching device
Simple structure, the coefficient of stability high, long service life and strong antijamming capability and low cost.
This utility model is achieved through the following technical solutions：
High-power inverter dual power supply seamless switching device, which includes the first power supply and second source, the first power supply and
Two power supplys are connected with load, it is characterised in that：The normally opened of the first relay is provided between the first described power supply and load
Contact, the first relay are connected with the first power supply, are provided with the normally opened of the second relay between described second source and load
Contact, the second relay are connected with second source, and control break-make is additionally provided between the second described relay and second source
The normally-closed contact of the first relay, the two ends of described load 7 are provided with storage capacitor.
Commutation diode is provided with circuit before described storage capacitor.
In sum, this utility model has the advantages that：
This utility model devises double-power supply switching device, and the simple structure of switching device, the coefficient of stability are high, service life
Long and strong antijamming capability and low cost.
Description of the drawings
Fig. 1 is composition schematic diagram of the present utility model；
In figure, 1 is the first power supply, and 2 is the first relay, and 3 is second source, and 4 is the second relay, and 5 is two pole of rectification
Pipe, 6 is storage capacitor, and 7 are load, and 21 is normally opened contact, and 22 is normally-closed contact, and 41 is normally opened contact.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described further.
As shown in figure 1, high-power inverter dual power supply seamless switching device, which includes the first power supply 1 and second source 3,
First power supply 1 and second source 3 are connected with load 7, are provided with the first relay 2 between the first described power supply 1 and load 7
Normally opened contact 21, the first relay 2 is connected with the first power supply 1, is provided with second between described second source 3 and load 7
The normally opened contact 41 of relay 4, the second relay are connected with second source 3, the second described relay 4 and second source 3 it
Between be additionally provided with control break-make the first relay 2 normally-closed contact 22, the two ends of described load 7 are provided with storage capacitor 6.
Commutation diode 5 is provided with circuit before described storage capacitor 6.
The course of work of the present utility model：
When the first power supply has electricity, the first relay KM1 coils obtain electric adhesive, and the normally closed interlock of the first relay KM1 breaks
Open, the second relay KM2 coil losing electricities, the first power supply is charged to electric capacity by commutation diode and powering load.When first
When power loss and second source have electricity, the first relay KM1 coil losing electricities disconnect, and the normally closed auxiliary of the first relay KM1 is touched
Head adhesive, the second relay KM2 coils obtain electric closure, and second source is charged to electric capacity by commutation diode and supplied to load
Electricity, as catalyst has certain journey time (Millisecond) in handoff procedure, here with the energy storage characteristic of electric capacity,
Load consumption electric capacity electricity is allowed in making handoff procedure so as to reach seamless handover function.
In sum, this utility model has the advantages that：
This utility model devises double-power supply switching device, and the simple structure of switching device, the coefficient of stability are high, service life
Long and strong antijamming capability and low cost.
Claims (2)
1. high-power inverter dual power supply seamless switching device, which includes the first power supply and second source, the first power supply and second
Power supply is connected with load, it is characterised in that：It is provided with the normally opened of the first relay to touch between the first described power supply and load
Point, the first relay are connected with the first power supply, be provided with the normally opened of the second relay and touch between described second source and load
Point, the second relay are connected with second source, and the of control break-make is additionally provided between the second described relay and second source
The normally-closed contact of one relay, described load（7）Two ends be provided with storage capacitor.
2. high-power inverter dual power supply seamless switching device according to claim 1, it is characterised in that：Described energy storage
Commutation diode is provided with circuit before electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992799.1U CN206060346U (en) | 2016-08-30 | 2016-08-30 | High-power inverter dual power supply seamless switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620992799.1U CN206060346U (en) | 2016-08-30 | 2016-08-30 | High-power inverter dual power supply seamless switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206060346U true CN206060346U (en) | 2017-03-29 |
Family
ID=58377578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620992799.1U Expired - Fee Related CN206060346U (en) | 2016-08-30 | 2016-08-30 | High-power inverter dual power supply seamless switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206060346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612129A (en) * | 2017-09-22 | 2018-01-19 | 郑州云海信息技术有限公司 | A kind of electric power system and storage product |
-
2016
- 2016-08-30 CN CN201620992799.1U patent/CN206060346U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107612129A (en) * | 2017-09-22 | 2018-01-19 | 郑州云海信息技术有限公司 | A kind of electric power system and storage product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20180830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |