CN202444415U - Inverter power supply module of intelligent integrated power supply system - Google Patents
Inverter power supply module of intelligent integrated power supply system Download PDFInfo
- Publication number
- CN202444415U CN202444415U CN2012200720460U CN201220072046U CN202444415U CN 202444415 U CN202444415 U CN 202444415U CN 2012200720460 U CN2012200720460 U CN 2012200720460U CN 201220072046 U CN201220072046 U CN 201220072046U CN 202444415 U CN202444415 U CN 202444415U
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- power supply
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Abstract
The utility model discloses an inverter power supply module of an intelligent integrated power supply system, which relates to the technical field of power equipment and is composed of two inverter power supplies and a branch circuit. The inverter power supply module is characterized in that two paths of alternating-current inputs for a station and one path of direct-current input are respectively adopted for the two inverter power supplies, different direct-current buses are adopted for the direct-current input of the two inverter power supplies, a storage battery is not adopted, and intra-station direct-current power buses are adopted for the direct-current input. The inverter power supply module disclosed by the utility model has an over-current protection property, and can ensure that timely action is made during short circuit of a load or when current exceeds an allowable limit value, so as to prevent from being damaged by surge current; in addition, the power of all parts can meet the requirement for long-term rated output.
Description
Technical field
The utility model relates to the power-supply device technical field, is specifically related to a kind of intelligent integral power-supply system inverter module.
Background technology
In each grade transformer station of electric power system; There is equipment component need be equipped with reliable and stable power supply; These equipment comprise: background computer, the reliable and stable 220V AC power of transmitter needs; Control device, protective relaying device need reliable 220V or 110V DC power supply, and communication equipment needs reliable and stable DC110V/DC48V DC power supply.Therefore need dispose independently UPS, control DC power supply and communication power supply in the transformer station usually.The control DC power supply comprises charging device, batteries and power supply supervision unit, and under the normal condition, charging device is a charge in batteries, and is control device and protective relaying device power supply in the transformer station; Exchanging under the power-off condition, is control device and protective relaying device power supply by batteries.Communication power supply comprises rectifier, batteries and power supply supervision unit, and under the normal condition, rectifier is a battery charging, and is the communication equipment power supply; Under the accident conditions, be the communication equipment power supply by storage battery.UPS comprises rectifier, batteries, charge circuit, inverter and monitoring unit, and under the normal condition, rectifier is transformed to direct current with AC power, is the AC power of voltage stabilization and frequency stabilization again by the inverter inversion; Under the accident conditions, be inverter power supply by storage battery, guarantee the continuity of the power supply of important load, the UPS capacity that transformer station uses is less, generally below 5kVA.The equipment investment of present this supply power mode is big, the post repeats to be provided with, reliability is low; Batteries is after putting into operation; Can not get safeguarding accordingly and detecting, when accident needs batteries that stand-by power supply is provided, find that just battery capacity early reduces even damage the sixth of the twelve Earthly Branches.
The utility model content
The utility model technical problem to be solved is to provide a kind of stable, can satisfy the intelligent integral power-supply system inverter module of long-term specified output requirement.
The utility model technical problem to be solved adopts following technical scheme to realize,
A kind of intelligent integral power-supply system inverter module; Constitute by two inverters and bypass circuit; It is characterized in that: described two inverters adopt two way stations with exchanging input, the input of one road direct current respectively; Different dc bus inputs are adopted in the direct current input of said two inverters, do not carry storage battery, and DC power supply bus in the station is adopted in the direct current input; Described inverter comprises that the rectifier, inverter and the static switch that are cascaded constitute, and described bypass circuit connects with the static switch of two inverters through circuit breaker.
The beneficial effect of the utility model is: the utlity model has the overcurrent protection characteristic; Can guarantee when the limiting value that load is short-circuited or electric current surpass to allow, in time to move; Make its damage of avoiding surge current, and the power of all parts all can satisfy the requirement of long-term specified output.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of intelligent integral power-supply system inverter module is made up of two inverters and bypass circuit; Two inverters adopt two way stations with exchanging input, the input of one road direct current respectively; Different dc bus inputs are adopted in the direct current input of two inverters, do not carry storage battery, and DC power supply bus in the station is adopted in the direct current input; Inverter comprises that the rectifier, inverter and the static switch that are cascaded constitute; Bypass circuit connects with the static switch of two inverters through circuit breaker, by the output of inverter main frame, when hostdown, is exported by slave under the normal condition.
The inverter normal operation mode is: inverter is supplied power to load through rectifier, inverter by the 220V/380V AC power; When AC power dead electricity or inverter rectifier fault, then supply power to load through inverter with dc power supply circuit by the station; When fault of converter or overload or no-output, switch to bypass power supply by static switch (automatically).The input of inverter is from through DC power supply and used DC power supply behind the rectifier rectification; The bypass AC power just often; It is synchronous with the bypass AC power that the inverter output frequency keeps, if the frequency of bypass AC power is with voltage deviation during above inverter tolerance permissible value, synchronization loop should automatically shut down; Inverter is then by its internal reference frequency operation, and is synchronous with its maintenance again in the time of in the bypass AC power returns to inverter tolerance allowed band.Inverter has the overcurrent protection characteristic, and the overcurrent protection of inverter can guarantee when the limiting value that load is short-circuited or electric current surpass to allow, in time to move, and makes it avoid the damage of surge current.
When inverter fault of converter or input AC and DC power supply lose, can load be switched to the bypass AC power without interruption.Under the bypass operational mode, inverter power supply device should be designed to be easy to safeguard and dismounting, and the power supply of load is not interrupted.During the inverter overload, static switch can switch to power supply by the bypass ac power supply automatically.When load switched to bypass by inverter, bypass voltage was normal; When switching to inverter by bypass, the sudden change of the phase place that do not have.
Any condition causes the inverter output voltage unusual, like the inverter fault, feed out branch, short-circuit etc., if bypass voltage is normal, should switch to bypass power supply immediately.
More than show and described basic principle of the utility model and the advantage of principal character and the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.
Claims (2)
1. intelligent integral power-supply system inverter module; Constitute by two inverters and bypass circuit; It is characterized in that: described two inverters adopt two way stations with exchanging input, the input of one road direct current respectively; Different dc bus inputs are adopted in the direct current input of said two inverters, do not carry storage battery, and DC power supply bus in the station is adopted in the direct current input.
2. intelligent integral power-supply system inverter module according to claim 1; It is characterized in that: described inverter comprises that the rectifier, inverter and the static switch that are cascaded constitute, and described bypass circuit connects with the static switch of two inverters through circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200720460U CN202444415U (en) | 2012-02-24 | 2012-02-24 | Inverter power supply module of intelligent integrated power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200720460U CN202444415U (en) | 2012-02-24 | 2012-02-24 | Inverter power supply module of intelligent integrated power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202444415U true CN202444415U (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200720460U Expired - Fee Related CN202444415U (en) | 2012-02-24 | 2012-02-24 | Inverter power supply module of intelligent integrated power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202444415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039194A (en) * | 2020-07-15 | 2020-12-04 | 山东钢铁股份有限公司 | Method for monitoring power supply of microcomputer direct current power supply at background |
-
2012
- 2012-02-24 CN CN2012200720460U patent/CN202444415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112039194A (en) * | 2020-07-15 | 2020-12-04 | 山东钢铁股份有限公司 | Method for monitoring power supply of microcomputer direct current power supply at background |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20130224 |