CN201699471U - Variable-frequency emergency power supply - Google Patents
Variable-frequency emergency power supply Download PDFInfo
- Publication number
- CN201699471U CN201699471U CN2010202392870U CN201020239287U CN201699471U CN 201699471 U CN201699471 U CN 201699471U CN 2010202392870 U CN2010202392870 U CN 2010202392870U CN 201020239287 U CN201020239287 U CN 201020239287U CN 201699471 U CN201699471 U CN 201699471U
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- China
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- input
- inverter
- charger
- power supply
- emergency power
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- Expired - Fee Related
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a variable-frequency emergency power supply which comprises a controller, an inverter, a charger, a battery pack, a frequency converter, a rectifier, a mutual throw switch, and a hand/automatic transfer switch, wherein the input power is connected with a load through the rectifier, the inverter and the frequency converter successively. The shunt of the input power is connected with an input end of the inverter through the charger, the battery pack and the mutual input device successively; wherein the input power chargers the battery pack through the charger; and a controller for detecting the state of input power is connected between the input end of the charger and a control end of the mutual throw switch. The other input end of the inverter is connected with the hand/automatic transfer switch. The variable-frequency emergency power supply with the structure can effectively reduce the impact to the power supply equipment in emergency power supply and starting process of the motor. Furthermore an energy saving effect is obtained.
Description
Technical field
The utility model relates to a kind of frequency conversion emergency power supply, and relating in particular to a kind ofly provides variable-frequency frequency conversion emergency power supply for the motor in a fire protection equipment or the stage load.
Background technology
At present the frequency conversion emergency power supply of supply generally comprises charger, battery pack, controller, inverter, throws device and hand/automatic change-over mutually on the market, and has designed battery detecting in system, divides alignment detection circuit.As shown in Figure 1, the frequency conversion emergency power supply is under the normal stable status of input electricity, an input that inserts inverter through rectification provides direct current to inverter, hand/automatic change-over that another input access control inverter of inverter opens and closes, inverter output end output AC electricity also connects load, the shunt of input electricity is simultaneously given batteries charging through charger, wherein is connected the input of charger and the controller thrown mutually between the control end of device manages the charging of input electro-detection and battery pack; When input electricity has a power failure or when unstable (input voltage be lower than 15% or be higher than 10% rated voltage), controller switches to Circuits System the direct current supply state of battery pack rapidly, and its effect is in order to ensure that battery pack still can continue as electric effectively after power failure.The frequency conversion emergency power supply of this kind structure is after inserting load, because to the load employing is direct startup, therefore to requiring powerful load, current requirements when directly starting is very big, impact to the motor winding also heightens thereupon, and, certain energy waste is arranged again to requiring the little load of detent torque.
The utility model content
The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of reliable and stable and energy-conservation frequency conversion emergency power supply is provided.
For achieving the above object, the utility model adopts a kind of frequency conversion emergency power supply, comprises controller, inverter, charger, battery pack, frequency converter, rectifying device, throws device and hand/automatic change-over mutually.Wherein import electricity and be connected load through rectifying device, inverter with frequency converter successively; The shunt of input electricity is passed through charger, battery pack successively and is thrown the input that switch is connected inverter mutually, wherein input electricity is given batteries charging by charger, at the input of charger with throw mutually between the control end of switch and connect a controller that detects the input electricity condition; Another input of inverter inserts a hand/automatic change-over.Under hand/automatic change-over is in auto state, when the input electricity just often, throw switch mutually and be in off-state, the input electricity is given batteries charging through charger in the shunt of input electricity simultaneously successively through rectifying device, inverter and frequency converter powering load; When input electricity has a power failure or when unstable (input voltage be lower than 15% or be higher than 10% rated voltage), controller moves rapidly, makes mutual throwing device adhesive conducting, causes battery pack and gives inverter power supply, the alternating current of inverter output offers load via frequency converter; Be under the manual state at hand/automatic change-over, show that no matter importing electricity has stateless, inverter starts immediately and switches output, enters inversion emergency service state.
The utility model is by the improvement to prior art, in the Circuits System of frequency conversion emergency power supply, set up frequency converter, carry out variable frequency starting from 0Hz-50Hz frequency conversion electric energy to motor, after arriving 50Hz, its frequency keeps normal moving row, reduced in the emergency service of motor and the start-up course thereof impact effectively, and reached the effect of energy savings power supply unit.
Description of drawings
Fig. 1 is the schematic diagram of frequency conversion emergency power supply prior art.
Fig. 2 is the schematic diagram of the utility model embodiment.
Embodiment
As shown in Figure 2, specific embodiment of the utility model is a kind of frequency conversion emergency power supply, comprise a controller, inverter, charger, battery pack, frequency converter, rectifying device, throw device 1 and hand/automatic change-over mutually, throw device 1 mutually and have control end 11, input 12 and output 13; Wherein import electricity and be connected load through rectifying device, inverter with frequency converter successively; The shunt of input electricity is connected the input of inverter successively with the input of throwing device mutually, output through charger, battery pack, wherein input electricity is given batteries charging by charger, at the input of charger with throw mutually between the control end of device and connect a controller that detects the input electricity condition; Another input of inverter inserts a hand/automatic change-over.Under hand/automatic change-over is in auto state, when the input electricity just often, throw device mutually and be in off-state, the input electricity is given batteries charging through charger in the shunt of input electricity simultaneously successively through rectifying device, inverter and frequency converter powering load; When input electricity has a power failure or when unstable (input voltage be lower than 15% or be higher than 10% rated voltage), controller moves rapidly, make mutual throwing device adhesive conducting, cause battery pack and give inverter power supply in the direct current mode, the alternating current of inverter output offers load via frequency converter; Be under the manual state at hand/automatic change-over, show that no matter importing electricity has stateless, inverter starts and switches output current immediately, enters inversion emergency service state.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description, and these belong to conspicuous variation or the change that spirit of the present utility model amplified out and still are among the protection range of the present utility model.
Claims (1)
1. frequency conversion emergency power supply comprises a controller, inverter, charger, battery pack, rectifying device, throws device and hand/automatic change-over mutually; Wherein import electricity and be connected load through rectifying device with inverter successively; The shunt of input electricity is passed through charger, battery pack successively and is thrown the input that device is connected inverter mutually, wherein input electricity is given batteries charging by charger, at the input of charger with throw mutually between the control end of switch and connect a controller that detects the input electricity condition; Another input of inverter inserts a hand/automatic change-over, and it is characterized in that: described frequency conversion emergency power supply comprises a frequency converter, and the input of this frequency converter links to each other with the output of inverter, and the output of this frequency converter connects load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202392870U CN201699471U (en) | 2010-06-23 | 2010-06-23 | Variable-frequency emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202392870U CN201699471U (en) | 2010-06-23 | 2010-06-23 | Variable-frequency emergency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201699471U true CN201699471U (en) | 2011-01-05 |
Family
ID=43400715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202392870U Expired - Fee Related CN201699471U (en) | 2010-06-23 | 2010-06-23 | Variable-frequency emergency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201699471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102842955A (en) * | 2012-09-12 | 2012-12-26 | 莱芜钢铁集团有限公司 | Emergency power supply system |
| CN103427472A (en) * | 2012-05-25 | 2013-12-04 | 成都振中电气有限公司 | Three-phase frequency conversion output power supply emergency power supply cabinet |
-
2010
- 2010-06-23 CN CN2010202392870U patent/CN201699471U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103427472A (en) * | 2012-05-25 | 2013-12-04 | 成都振中电气有限公司 | Three-phase frequency conversion output power supply emergency power supply cabinet |
| CN102842955A (en) * | 2012-09-12 | 2012-12-26 | 莱芜钢铁集团有限公司 | Emergency power supply system |
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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: 20110105 Termination date: 20130623 |