CN202888951U - Emergency power supply device reconstructed through frequency converter - Google Patents
Emergency power supply device reconstructed through frequency converter Download PDFInfo
- Publication number
- CN202888951U CN202888951U CN 201220507440 CN201220507440U CN202888951U CN 202888951 U CN202888951 U CN 202888951U CN 201220507440 CN201220507440 CN 201220507440 CN 201220507440 U CN201220507440 U CN 201220507440U CN 202888951 U CN202888951 U CN 202888951U
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- CN
- China
- Prior art keywords
- frequency converter
- power supply
- emergency power
- supply device
- technical
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to the technical field of electric power systems, specifically to an emergency power supply device reconstructed through a frequency converter. The technical scheme is that the emergency power supply device comprises the frequency converter which is internally provided with a rectification module and an inversion module, which are connected through a direct-current bus; and the direct-current bus is provided with a branch lead and connected with an industrial battery set through a change-over switch. The emergency power supply device has a reasonable design that the conversion into an emergency power supply can be performed rapidly when the commercial power is cut off, thereby guaranteeing the normal running of equipment; the design retains all the functions and advantages of the frequency converter without damaging the structure of the frequency converter or influencing the performance of the frequency converter; and the emergency power supply device can realize the frequency-conversion speed regulation and soft start functions and guarantee the technical operation.
Description
Technical field
The utility model relates to technical field of power systems, is specially a kind of emergency power supply unit that utilizes frequency converter to transform.
Background technology
When civil power was normal, civil power became direct current through the rectification module of frequency converter, becomes alternating current for load through inversion module again; Behind the mains failure, after rectification module quits work, without the direct current of input, inversion module also just can not output AC electricity, cause equipment downtime, the normal operation of impact production.
The utility model content
The purpose of this utility model is exactly the defective that exists for prior art, and a kind of emergency power supply unit that utilizes frequency converter to transform simple in structure, reasonable in design is provided.
Its technical scheme is: comprise frequency converter, be provided with the rectification module and the inversion module that connect by dc bus in it; Dc bus is provided with offset, and connects the industrial battery group by change over switch.
Described industrial battery group also connects charging module.
The utility model is reasonable in design, when mains failure, can be converted to fast emergency power supply, guarantees the normal operation of equipment; And the design does not destroy the structure of frequency converter, does not affect the performance of frequency converter, possesses all functions and the advantage of frequency converter, can realize frequency control and soft function, guarantees the operation of technique.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Referring to Fig. 1, a kind of emergency power supply unit that utilizes frequency converter to transform, civil power (AC380V) at first enters frequency converter, and after passing through successively the interior rectification module of frequency converter, inversion module, be connected with load, the dc bus between rectification module and the inversion module is provided with K switch 1, dc bus is provided with offset and connects battery pack, offset is provided with K switch 2, and battery pack also connects charging module, and charges by civil power (AC380V).
During the civil power normal power supply, K switch 2 is closed, and civil power (AC380V) becomes direct current by the frequency converter rectification module, becomes alternating current for load through inversion module again; Behind mains failure, rectification module is no longer worked, and cut-off switch K1, coupling cock K2 provide direct voltage by battery pack to inversion module at this moment at this moment, be continuously load alternating current is provided, and reach the non-stop-machine purpose of load; After civil power is normal, automatically convert the mains-supplied pattern to.If during the arts demand automatic control, can cooperate with instrument and realize automatically control, technological operation optimization guarantees parameter stability.
Claims (2)
1. emergency power supply unit that utilizes frequency converter to transform, comprise frequency converter, be provided with the rectification module and the inversion module that connect by dc bus in it, it is characterized in that: described dc bus is provided with offset, and connects the industrial battery group by change over switch.
2. the emergency power supply unit that utilizes frequency converter to transform according to claim 1, it is characterized in that: described industrial battery group also connects charging module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507440 CN202888951U (en) | 2012-09-29 | 2012-09-29 | Emergency power supply device reconstructed through frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220507440 CN202888951U (en) | 2012-09-29 | 2012-09-29 | Emergency power supply device reconstructed through frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888951U true CN202888951U (en) | 2013-04-17 |
Family
ID=48080341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220507440 Expired - Fee Related CN202888951U (en) | 2012-09-29 | 2012-09-29 | Emergency power supply device reconstructed through frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202888951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645203A (en) * | 2016-07-21 | 2018-01-30 | 阿里巴巴集团控股有限公司 | Energy storage frequency convertor system |
| CN112421758A (en) * | 2020-11-16 | 2021-02-26 | 合肥联信电源有限公司 | Power emergency power supply with anti-interference function |
-
2012
- 2012-09-29 CN CN 201220507440 patent/CN202888951U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107645203A (en) * | 2016-07-21 | 2018-01-30 | 阿里巴巴集团控股有限公司 | Energy storage frequency convertor system |
| CN112421758A (en) * | 2020-11-16 | 2021-02-26 | 合肥联信电源有限公司 | Power emergency power supply with anti-interference function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130417 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |