CN202888952U - Power control box with standby power source - Google Patents
Power control box with standby power source Download PDFInfo
- Publication number
- CN202888952U CN202888952U CN2012205256400U CN201220525640U CN202888952U CN 202888952 U CN202888952 U CN 202888952U CN 2012205256400 U CN2012205256400 U CN 2012205256400U CN 201220525640 U CN201220525640 U CN 201220525640U CN 202888952 U CN202888952 U CN 202888952U
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- Prior art keywords
- power
- controller
- electric consumption
- power supply
- power control
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a power control box with a standby power source. The power control box comprises an incoming line switch in connection with a main power source, a grid power control unit, a charger, an energy storage unit, a standby power control unit and a power mutual-switching unit. One path of the incoming line switch is connected with the grid power control unit, and the other path is connected with the charger. The energy storage unit is charged by the charger so as to store the energy. The energy storage unit is connected with the standby power control unit. Alternating-current power sources are converted and outputted by the standby power control unit. The power mutual-switching unit performs mutual switching between the grid power control unit and the two alternating-current power sources outputted by the standby power control unit, wherein one of the alternating-current power sources is chosen to supply power to a power load. The power control box of the utility model, which is compact in structure and low in investment and is convenient to mount, has the functions of the self-contained power source, automatic mutual switching, variable frequency starting, etc., besides the normal function of controlling the operation of the power load, and can safely and reliably supply power, in a double-circuit manner, to the power load which requires double-circuit power supply.
Description
Technical field
The utility model belongs to technical field of power systems, specifically, relates to a kind of electric power system that stand-by power supply can be provided for line load.
Background technology
Present fire-fighting setting (such as: fire hydrant fire pump, stabilized pressure pump, spray pump, fire resistance rolling shutter door, smoke exhaust fan etc.) or other one-level living loads (such as: give (benefit) water pump, draining pump, dredge pump, air draft/breeze fan, hot water circulating pump, coolant pump, hydraulic pump, cooling blower etc.), all need the duplex feeding power supply.Yet road network electricity has only been set up in present many zones, if it is very large to set up the second road network electricity investment meeting, therefore, these areas can only be come to provide its second road required power supply for line load by diesel generating set.But the supply power mode of employing diesel generating set can be brought inconvenience and the trouble in many uses, and invests huge.
Summary of the invention
The utility model provides a kind of power control box that carries stand-by power supply, to satisfy the user demand of such line load in order to solve some line load that needs duplex feeding in the regional awkward problem that the power supply of road network electricity only can be provided.
For solving the problems of the technologies described above, the utility model is achieved by the following technical solutions:
A kind of power control box that carries stand-by power supply comprises that the service entrance switch that connects main power source, net controller for electric consumption, charger, energy storage device, standby controller for electric consumption and power supply throw device mutually; Described service entrance switch one tunnel connection network controller for electric consumption, another road connecting charger, by charger to the energy storage device accumulation of energy of charging; Described energy storage device connects standby controller for electric consumption, by standby controller for electric consumption conversion output AC power source; Described power supply is thrown mutually device and is carried out mutual switching change between the two-way AC power of net controller for electric consumption and the output of standby controller for electric consumption, selects wherein one tunnel AC power to power to line load.
Further, in described standby controller for electric consumption, comprise inverter, frequency conversion starter and electric controller, described inverter receives the direct current energy of energy storage device output, inversion generates AC power and exports frequency conversion starter to, and the AC power by frequency conversion starter output transfers to power supply via electric controller and throws mutually device.
For when the net controller for electric consumption breaks down, can continue to use main power source to power as the rear class line load, preferably the switch ways of described service entrance switch by a mains switch connected for the frequency conversion starter in the controller for electric consumption, the control frequency conversion starter is communicated with main power source or turn-offs, the control end connection network controller for electric consumption of described mains switch receives the switching signal that the net controller for electric consumption is exported.The fault-signal of output was realized the accurate control to mains switch when described switching signal can select the net controller for electric consumption to break down.
Preferably, described mains switch is an A.C. contactor, and the coil of described A.C. contactor is connected between the switching signal output and ground of net controller for electric consumption, and the armature contact of A.C. contactor is connected between service entrance switch and the frequency conversion starter.
Preferably, described line load is alternating current motor; Described energy storage device is batteries; Described main power source is the net electricity.
Compared with prior art, advantage of the present utility model and good effect are: of the present utility modelly carry the stand-by power supply power control box and can provide for the operation of line load the normal control function except having, also have the functions such as self-powered, automatic mutual operation, variable frequency starting.The described power control box that carries stand-by power supply is applied in the zone that the power supply of road network electricity only can be provided, not only can supply power with double circuit for this zone requires the line load of duplex feeding to provide safe and reliable, and control cabinet self structure compactness, small investment, installation are convenient, can satisfy well the demand that supplies power with double circuit of line load.
After reading by reference to the accompanying drawings the detailed description of the utility model execution mode, other characteristics of the present utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the Circuits System configuration diagram of the power control box that carries stand-by power supply that proposes of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.
The power control box that carries stand-by power supply of present embodiment is mainly thrown mutually device etc. by service entrance switch, net controller for electric consumption, charger, energy storage device, standby controller for electric consumption and power supply and is partly formed, referring to shown in Figure 1.
Described service entrance switch is exactly the switch of introducing power supply from the outside.In the present embodiment, with the external main power source of described service entrance switch, the AC power that main power source provides is carried out access control.Described main power source preferred net electricity, the alternating current that namely utilizes the net electricity to provide is powered for line load, and is generated as the second road power supply of line load power supply by the power control box of present embodiment.
Described net controller for electric consumption mainly is comprised of parts such as some switches, protective circuits; except having the functions such as control, warning, protection, star triangle start or soft start and remote monitoring, interlock; can also be for the using and the reserved line load (i.e. a main load, a load for subsequent use), dual-purpose one standby line load (i.e. two main loads, a load for subsequent use), three usefulness, one standby line load (i.e. three main loads, a load for subsequent use) etc. carry out distribution, to satisfy the need for electricity of all kinds line load.In the present embodiment, described net controller for electric consumption is connected to service entrance switch and power supply is thrown between the device mutually, when mains supply was normal, the electric energy that utilizes the net electricity to provide was powered for line load.
Described charger is connected between service entrance switch and the energy storage device, after the rectifying conversion that the net electricity that will introduce by service entrance switch (present embodiment is following to be specifically described as example as described main power source to net electricity) carries out AC-to DC was processed, DC power output was energy storage device charging accumulation of energy.
Described energy storage device preferably adopts batteries to carry out system in the present embodiment, when the power supply of net electricity is normal, utilize the net electricity to be the battery charging accumulation of energy via charger, and after being full of, keep floating charge state, to guarantee when the net electricity breaks down, can to provide enough electric weight deposits, keep the long-time need for electricity of line load.
Described standby controller for electric consumption has inversion, variable frequency starting, electrical control three aspects: function, being connected to described energy storage device and power supply throws between the device mutually, be used for the direct current energy of energy storage device output is reverse into the required AC power of rear class line load operation, when the appearance of net electricity is unusual, for line load provides continual stand-by power supply.
In the present embodiment, described standby controller for electric consumption mainly is comprised of inverter, frequency conversion starter and electric controller three parts, referring to shown in Figure 1.Wherein, described inverter is connected with energy storage device, receives the direct current energy of energy storage device output, and inversion generation AC power exports frequency conversion starter to.Described frequency conversion starter can be according to the desired startup frequency of line load, convert the AC power of inverter output to the Alternating Current Power Supply identical with described startup frequency, transfer to power supply via electric controller and throw mutually device, to satisfy the startup requirement of line load.After the line load startup finished to change normal operating condition over to, described frequency conversion starter can enter power frequency operation automatically, and the AC power that the inverter inversion is exported transfers to electric controller.The effect of described electric controller is identical with the effect of net controller for electric consumption; AC power to inverter inversion output is monitored, is protected; and transfer to power supply and throw mutually device; and then when mains supply is unusual; throw mutually the output of device automatic switching by power supply, for rear class provides stand-by power supply with electric loading.
Described power supply is thrown mutually device and can be selected duplicate supply to throw mutually switch, respectively with the corresponding connection with the controller for electric consumption of being connected of net controller for electric consumption, receive the AC power of exporting by net controller for electric consumption and standby controller for electric consumption respectively, and with the AC network electricity of net controller for electric consumption output as main power source, will be for the AC power of controller for electric consumption output power supply in support, when the power supply of net electricity was normal, the AC energy of utilizing all the time the net electricity to provide was powered for line load; When net electricity power supply appearance that and if only if is unusual, during problems such as the outage of net electricity or appearance rolling electricity, power supply is thrown device mutually just can automatically switch to standby controller for electric consumption, utilizes back-up source to continue power supply for line load, guarantees that line load can continue to run without interruption.Be that if main power source restores electricity, then power supply is thrown the device automatic switching mutually to main power source, re-uses the net electricity and powers for line load in the line load process of powering adopting back-up source.
Described line load specifically refers to the motor type line load in the present embodiment, directly throws mutually device with described power supply and is connected, and the AC power of utilizing power supply to throw mutually the output of device switching provides work required electric energy for it.
When the power supply of net electricity is normal, if the net controller for electric consumption breaks down, then can block the net electricity to the supply of electric power of line load.For head it off, so that the net electricity during the net controller for electric consumption breaks down, still can be continuously the line load power supply, present embodiment is preferably further set up mains switch K1 between described service entrance switch and standby controller for electric consumption, as shown in Figure 1.When the net controller for electric consumption broke down, described mains switch K1 was closed by automatic control, and the net electricity is incorporated into standby controller for electric consumption, and then under the standby supervisory function bit of controller for electric consumption, realized that the AC network electricity is to the continued power of line load.
In the present embodiment, described mains switch K1 preferably adopts an A.C. contactor to carry out the specific design of circuit system.When adopting A.C. contactor to carry out circuit design as mains switch K1, the coil of described A.C. contactor can be connected between the switching signal output and ground of net controller for electric consumption, receive the switching signal of net controller for electric consumption output, it is connected on the armature contact break-make between service entrance switch and the standby controller for electric consumption for control.As a kind of preferred design of present embodiment, can specifically adopt the fault-signal of net controller for electric consumption output as described switching signal, described A.C. contactor is carried out break-make control.When the net controller for electric consumption broke down, the net controller for electric consumption generated fault-signal, drove on the one hand warning circuit and carried out the alarm prompting, and can further carry out fault alarm by communication network to long-range Surveillance center; On the other hand, with described fault-signal as switching signal, export the coil of A.C. contactor to, the armature contact of control A.C. contactor is closed, with the frequency conversion starter in the extremely standby controller for electric consumption of net electrical transmission, and then transfer to power supply under the monitoring of the electric controller in standby controller for electric consumption and throw mutually device, throw mutually at power supply under the switching control of device, export line load to and provide supply of electric power for it.
Certainly, described mains switch K1 also can select other the controlled type switch elements except A.C. contactor to carry out circuit design, at this moment, only need the control end connection network controller for electric consumption with mains switch K1, receive the switching signal of net controller for electric consumption output, then the switch ways of mains switch K1 is connected between the frequency conversion starter in service entrance switch and the standby controller for electric consumption, control described mains switch K1 break-make by the net controller for electric consumption, can satisfy the net electricity and between net controller for electric consumption age at failure, continue to the design requirement of line load power supply.
The power control box that carries stand-by power supply of present embodiment is by being integrated traditional service entrance switch, stand-by power supply, control cubicle, frequency conversion starter, switching cabinet five parts, not only compact conformation, small investment, installation are convenient, and security of operation, power supply are reliable, can satisfy the need for electricity that all require the line load of duplex feeding.All parts (be service entrance switch, net controller for electric consumption, charger, energy storage device, throw mutually device for controller for electric consumption, power supply) that form described power control box can be laid in the cabinet, also can be laid in the plural cabinet, for example energy storage device is laid in the independent cabinet, remaining part is laid in the another one cabinet, concrete laying mode can be according to user's actual use needs specific design, and present embodiment is not limited in above giving an example.
Certainly; the above only is a kind of preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. power control box that carries stand-by power supply is characterized in that: comprise that the service entrance switch, net controller for electric consumption, charger, energy storage device, standby controller for electric consumption and the power supply that connect main power source throw device mutually; Described service entrance switch one tunnel connection network controller for electric consumption, another road connecting charger, by charger to the energy storage device accumulation of energy of charging; Described energy storage device connects standby controller for electric consumption, by standby controller for electric consumption conversion output AC power source; Described power supply is thrown mutually device and is carried out mutual switching change between the two-way AC power of net controller for electric consumption and the output of standby controller for electric consumption, selects wherein one tunnel AC power to power to line load.
2. the power control box that carries stand-by power supply according to claim 1, it is characterized in that: in described standby controller for electric consumption, comprise inverter, frequency conversion starter and electric controller, described inverter receives the direct current energy of energy storage device output, inversion generates AC power and exports frequency conversion starter to, and the AC power by frequency conversion starter output transfers to power supply via electric controller and throws mutually device.
3. the power control box that carries stand-by power supply according to claim 2, it is characterized in that: described service entrance switch connects for the frequency conversion starter in the controller for electric consumption by the switch ways of a mains switch, the control frequency conversion starter is communicated with main power source or turn-offs, the control end connection network controller for electric consumption of described mains switch receives the switching signal that the net controller for electric consumption is exported.
4. the power control box that carries stand-by power supply according to claim 3, it is characterized in that: described mains switch is an A.C. contactor, the coil of described A.C. contactor is connected between the switching signal output and ground of net controller for electric consumption, and the armature contact of A.C. contactor is connected between service entrance switch and the frequency conversion starter.
5. each described power control box that carries stand-by power supply in 4 according to claim 1, it is characterized in that: described line load is alternating current motor.
6. each described power control box that carries stand-by power supply in 4 according to claim 1, it is characterized in that: described energy storage device is batteries.
7. each described power control box that carries stand-by power supply in 4 according to claim 1, it is characterized in that: described main power source is the net electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205256400U CN202888952U (en) | 2012-10-15 | 2012-10-15 | Power control box with standby power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205256400U CN202888952U (en) | 2012-10-15 | 2012-10-15 | Power control box with standby power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202888952U true CN202888952U (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205256400U Expired - Fee Related CN202888952U (en) | 2012-10-15 | 2012-10-15 | Power control box with standby power source |
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| Country | Link |
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| CN (1) | CN202888952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450082A (en) * | 2018-11-20 | 2019-03-08 | 四川省辛普森动力设备有限公司 | A kind of dynamic UPS and control method |
-
2012
- 2012-10-15 CN CN2012205256400U patent/CN202888952U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450082A (en) * | 2018-11-20 | 2019-03-08 | 四川省辛普森动力设备有限公司 | A kind of dynamic UPS and control method |
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| 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: 20151015 |
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| EXPY | Termination of patent right or utility model |