CN109274085A - A kind of online switching device of DC power supply and switching method - Google Patents
A kind of online switching device of DC power supply and switching method Download PDFInfo
- Publication number
- CN109274085A CN109274085A CN201811169264.4A CN201811169264A CN109274085A CN 109274085 A CN109274085 A CN 109274085A CN 201811169264 A CN201811169264 A CN 201811169264A CN 109274085 A CN109274085 A CN 109274085A
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- China
- Prior art keywords
- power supply
- circuit
- switching device
- diode
- bypass diode
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of online switching devices of DC power supply, it includes a plurality of DC power supply access circuit, a plurality of loads to pick out circuit and programmable controller, every DC power supply access circuit includes diode, bypass diode switching device, main switchgear, is connected again with main switchgear after wherein diode is in parallel with bypass diode switching device；Also disclose its constantly electric switching method；The present apparatus can access the DC power supply of multichannel difference output voltage simultaneously, it can actively realize power switching between different DC power supplies, power supply handoff procedure does not have a power failure, and provides simple, economic solution for different output voltages, the DC power supply parallel running of different flash-over characteristics and online switching.
Description
Technical field
The present invention relates to a kind of direct-current power source supply device, DC power supply is realized in especially more DC power supply access systems
Continuous cutting changes the device and its switching method of power supply.
Background technique
In recent years, new energy is quickly grown in Ship Electrical Power System, and especially battery, super capacitor, photovoltaic etc. are with straight
Stream output is that the new energy of the form of expression is widely applied in Ship Electrical Power System, therefore ship DC distribution is marine vessel power system
One important directions of system development.
For the redundancy for guaranteeing ship power supply, generally there is multi-channel dc power supply to access ship power distribution system, is run in system
When, output voltage and the flash-over characteristic of various DC power supplies cannot be guaranteed completely the same, therefore it is in parallel to solve different DC power supplies
Operation problem is of great significance.
Summary of the invention
One of the objects of the present invention is to provide a kind of simple, economic online switching devices of DC power supply, realize different
Operation, the functions such as online switching are accessed while voltage levels direct current power supply.
The technical solution adopted by the present invention to solve the technical problems is: a kind of online switching device of DC power supply, including
A plurality of DC power supply access circuit and load pick out circuit, and the DC power supply access circuit includes diode, by diode
Way switch device and circuit main switchgear, after diode is in parallel with bypass diode switching device again with circuit main switchgear
Series connection, the diode, bypass diode switching device and circuit main switchgear are being placed in DC power supply access circuit just
Pole；It further include controlling the bypass diode switching device in selected circuit and circuit main switchgear closure, other circuits are all opens
The programmable controller that device disconnects is closed, for actively selecting specific DC power supply powering load.
The second object of the present invention is to provide a kind of online switching method that do not have a power failure of above-mentioned switching device, selection difference
When the switching power supply of voltage levels direct current power supply, sequence are as follows: disconnect the bypass diode switch dress of DC power supply circuit to be accessed
It sets；Disconnect the bypass diode switching device of DC power supply circuit to be cut off；It is closed returning for DC power supply circuit to be accessed
Road main switchgear；Disconnect the circuit main switchgear of DC power supply circuit to be cut off；DC power supply to be accessed is closed to return
The bypass diode switching device on road；Complete the continuous power supply that do not have a power failure of handoff procedure.
The beneficial effects of the present invention are: the online switching device of DC power supply of the present invention can access simultaneously different output voltages,
The multi-channel dc power supply of different flash-over characteristics realizes that the parallel running of multi-channel dc power supply and online switching, handoff procedure do not stop
Electricity, the programmable controller in device can control the bypass diode switching device closure of specific loop, circuit main switchgear
Closure, all switching devices in other circuits disconnect, and actively select specific DC power supply powering load；Apparatus of the present invention electricity
Line structure is simple, at low cost, easy to spread.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of switching device of the present invention；
Fig. 2 to Fig. 7 is the schematic diagram of switching method of the present invention.
Wherein: k-1 is the diode of kth current supply circuit；K-2 is that the bypass diode of kth current supply circuit switchs dress
It sets；K-3 is the circuit main switchgear of kth current supply circuit.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in referring to Fig.1, the invention discloses a kind of online switching devices of DC power supply, access comprising a plurality of DC power supply
Circuit, a plurality of load pick out circuit, programmable controller；Every DC power supply access circuit includes diode, diode
Bypass switch arrangement and circuit main switchgear are filled with circuit main switch again after diode is in parallel with bypass diode switching device
Series connection is set, the diode, bypass diode switching device, circuit main switchgear are placed in circuit anode；It is described programmable
Controller controls the bypass diode switching device closure in selected circuit, circuit main switchgear closure, other circuits are all to open
It closes device to disconnect, actively selects specific DC power supply powering load.
As shown in Fig. 2, the online switching device of DC power supply provided by the invention, comprising a plurality of DC power supply access circuit and
A plurality of load picks out circuit, and every DC power supply access circuit includes diode k-1, bypass diode switching device k-2, circuit
It is gone here and there again with circuit main switchgear k-3 after main switchgear k-3, diode k-1 are in parallel with bypass diode switching device k-2
Connection, diode k-1, bypass diode switching device k-2, circuit main switchgear k-3 are placed in circuit anode.Such as the 1st article
Circuit is respectively diode 1-1, bypass diode switching device 1-2, circuit main switchgear 1-3.
As shown in fig. 3 to 7, the online switching device of DC power supply accesses the DC power supply of multichannel different voltages grade simultaneously, can
Programmable controller 4 controls the bypass diode switching device k-2 closure of specific loop, circuit main switchgear is closed k-3, other
All switching devices in circuit disconnect, and actively select specific DC power supply powering load.
It is different when this example illustrates active powering mode to be switched to kth (k ≠ 1) article current supply circuit by the 1st article of current supply circuit
The switching power supply process of power supply are as follows:
As shown in figure 3, the bypass diode switching device k-2 of DC power supply circuit (kth item) to be accessed is disconnected；
As shown in figure 4, the bypass diode switching device 1-2 of DC power supply circuit (the 1st article) to be cut off is disconnected；
As shown in figure 5, the circuit main switchgear k-3 of DC power supply circuit (kth item) to be accessed is closed；
As shown in fig. 6, the circuit main switchgear 1-3 of DC power supply circuit (the 1st article) to be cut off is disconnected；
As shown in fig. 7, the bypass diode switching device k-2 of DC power supply circuit (kth item) to be accessed is closed；
Handoff procedure does not have a power failure.
Finally it should be noted that: the above be only to the technical solution that illustrates rather than its limitations, it is any to be familiar with
Professional and technical personnel is changed or is modified as the embodiment of equivalent variations, institute possibly also with the technology contents of the disclosure above
State field it will be appreciated by the skilled person that without departing from any modification of spirit and scope of the invention or equivalent replacement, cover
In the scope of the claims of the present invention.
Claims (2)
1. a kind of online switching device of DC power supply, it is characterised in that: access circuit including a plurality of DC power supply and load picks out
Circuit, the DC power supply access circuit includes diode, bypass diode switching device and circuit main switchgear, two poles
It connects again with circuit main switchgear after pipe is in parallel with bypass diode switching device, the diode, bypass diode switch
Device and circuit main switchgear are placed in the anode in DC power supply access circuit；It further include controlling by the diode in selected circuit
The programmable controller that way switch device and circuit main switchgear closure, all switching devices in other circuits disconnect, is used for
Actively select specific DC power supply powering load.
2. a kind of online switching method that do not have a power failure of switching device as described in claim 1, which is characterized in that selection different voltages
When the switching power supply of grade DC power supply, sequence are as follows:
Disconnect the bypass diode switching device of DC power supply circuit to be accessed；
Disconnect the bypass diode switching device of DC power supply circuit to be cut off；
It is closed the circuit main switchgear of DC power supply circuit to be accessed；
Disconnect the circuit main switchgear of DC power supply circuit to be cut off；
It is closed the bypass diode switching device of DC power supply circuit to be accessed；
Complete the continuous power supply that do not have a power failure of handoff procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169264.4A CN109274085A (en) | 2018-10-08 | 2018-10-08 | A kind of online switching device of DC power supply and switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811169264.4A CN109274085A (en) | 2018-10-08 | 2018-10-08 | A kind of online switching device of DC power supply and switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109274085A true CN109274085A (en) | 2019-01-25 |
Family
ID=65196047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811169264.4A Pending CN109274085A (en) | 2018-10-08 | 2018-10-08 | A kind of online switching device of DC power supply and switching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109274085A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124028A (en) * | 2019-11-15 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Multi-path combined power supply method and device and storage medium |
| WO2021102998A1 (en) * | 2019-11-29 | 2021-06-03 | 华为技术有限公司 | Voltage regulation module, charging module, and charging pile |
| CN116404880A (en) * | 2023-04-04 | 2023-07-07 | 北京龙腾云海科技股份有限公司 | Efficient power supply system based on multi-path switch power supply parallel connection |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204858559U (en) * | 2015-08-11 | 2015-12-09 | 中国航空工业集团公司西安飞机设计研究所 | Dc supply circuit |
| CN207442480U (en) * | 2017-09-27 | 2018-06-01 | 中兴仪器（深圳）有限公司 | A kind of more power input management structures of pocket communication apparatus |
-
2018
- 2018-10-08 CN CN201811169264.4A patent/CN109274085A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204858559U (en) * | 2015-08-11 | 2015-12-09 | 中国航空工业集团公司西安飞机设计研究所 | Dc supply circuit |
| CN207442480U (en) * | 2017-09-27 | 2018-06-01 | 中兴仪器（深圳）有限公司 | A kind of more power input management structures of pocket communication apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111124028A (en) * | 2019-11-15 | 2020-05-08 | 苏州浪潮智能科技有限公司 | Multi-path combined power supply method and device and storage medium |
| WO2021102998A1 (en) * | 2019-11-29 | 2021-06-03 | 华为技术有限公司 | Voltage regulation module, charging module, and charging pile |
| CN116404880A (en) * | 2023-04-04 | 2023-07-07 | 北京龙腾云海科技股份有限公司 | Efficient power supply system based on multi-path switch power supply parallel connection |
| CN116404880B (en) * | 2023-04-04 | 2023-12-26 | 北京龙腾云海科技股份有限公司 | Efficient power supply system based on multi-path switch power supply parallel connection |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |