CN109428384A - A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically - Google Patents
A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically Download PDFInfo
- Publication number
- CN109428384A CN109428384A CN201710742108.1A CN201710742108A CN109428384A CN 109428384 A CN109428384 A CN 109428384A CN 201710742108 A CN201710742108 A CN 201710742108A CN 109428384 A CN109428384 A CN 109428384A
- Authority
- CN
- China
- Prior art keywords
- direct current
- power supply
- battery
- electrical interface
- load
- 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.)
- Pending
Links
Classifications
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
This application discloses a kind of backup power supply system of AC power supply device, circuit board and standby method for electrically, and backup power supply system includes: a-c transducer, for receiving the alternating current of AC power supply device offer, and the alternating current is converted to the first direct current, are load supplying；Direct current is connected between the a-c transducer and battery for electrical interface, the direct current for electrical interface, and the first DC power transmission for exporting the a-c transducer gives the battery, to charge to the battery；The direct current is also used to for electrical interface in AC power supply device stopping offer alternating current, and the second DC power transmission that the battery is exported is to the load, for the load supplying.
Description
Technical field
This application involves standby electric control technical field, in particular to a kind of backup power supply systems of AC power supply device, circuit board
And standby method for electrically.
Background technique
The AC power supply device in base station generallys use uninterruptible power supply (Uninterruptible Power at present
System/Uninterruptible Power Supply, UPS) carry out standby electricity.In this scheme, in alternating current normal power supply,
The alternating voltage of alternating current is converted into DC voltage through over commutation as battery charging, and when alternating current stops powering, battery output
DC voltage needs to be converted to alternating voltage by inversion, and alternating voltage is converted to appropriate electrical using exchange conversion and buck
After the DC voltage of pressure, the load that can just be negative is powered.
Therefore, because there is the extra flow path switch such as inversion in above scheme, the energy for causing battery to export can turn
There are major part losses when changing, so that the energy conversion efficiency of this standby electric scheme is lower.
Summary of the invention
In view of this, the purpose of the application is to provide the backup power supply system, circuit board and standby electricity side of a kind of AC power supply device
Method, to solve the lower technical problem of standby electric scheme energy conversion efficiency in the prior art.
The first aspect of the application provides a kind of backup power supply system for exchanging standby electric equipment, including with flowering structure: handing over
Stream transformer and direct current are for electrical interface, wherein a-c transducer receives the alternating current that AC power supply device provides, and by the friendship
Galvanic electricity is converted to the first direct current, is load supplying；And direct current is connected between the a-c transducer and battery for electrical interface,
The first DC power transmission that the a-c transducer is exported gives the battery, to charge to the battery；In addition to this, direct current
Standby electrical interface also when the AC power supply device stops providing alternating current, the second DC power transmission that the battery is exported to
The load is the load supplying.As it can be seen that the alternating current for being provided AC power supply device using a-c transducer in the application
Directly carry out ac/dc conversion, after obtaining direct current, be load supplying while, also using be connected to exchange conversion
The DC power transmission that direct current between device and battery exports a-c transducer for electrical interface charges to battery, thus handing over
Flow power supply unit stop provide alternating current when, battery can by direct current for electrical interface by the direct current that battery exports do not need through
It crosses the operations such as inversion to be transferred directly to load, is load supplying, it is more not need inversion etc. in the backup power supply system in the application as a result,
Remaining conversion operation, so that battery causes energy to damage by the direct current that direct current exports for electrical interface without going past multiple conversions
It loses, to improve the energy conversion efficiency in standby electricity, realizes the application purpose.
The second aspect of the application provides a kind of circuit board of the backup power supply system of AC power supply device, is applied to include handing over
Stream transformer and direct current for electrical interface backup power supply system, wherein include with flowering structure in circuit board: power panel, payload traffic plate
With direct current for electrical interface plate, wherein power panel is connected with the a-c transducer in battery and the backup power supply system respectively, described
Payload traffic plate is connected with the load, and the rear panel of the circuit board, the payload traffic is arranged in the power panel
Plate is adjacent with the power panel, and the front panel of the circuit board is arranged in the payload traffic plate, and the direct current is for electrical interface
The front panel of the circuit board is arranged in plate, and the direct current is for electrical interface plate and the payload traffic plate and the power panel point
It is not adjacent.As it can be seen that power panel is put into rear panel in the circuit board of backup power supply system, payload traffic plate is put into front panel, this
Sample has in plate vacant space setting direct current for electrical interface plate in front.
The third aspect of the application provides a kind of standby method for electrically of AC power supply device, is applied to include a-c transducer
With direct current in the backup power supply system of electrical interface, this may comprise steps of for method for electrically: the AC power supply device is provided
Alternating current be converted into the first direct current using the a-c transducer, using first direct current be load supplying it is same
When, first direct current is transferred to battery using direct current for electrical interface, to charge to the battery；And it is supplied in the exchange
When electric equipment stops providing alternating current, the second direct current that the battery exports is transferred to institute by the direct current for electrical interface
Load is stated, is the load supplying.As it can be seen that the alternating current direct for being provided AC power supply device using a-c transducer in the application
The conversion of row ac/dc is tapped into, after obtaining direct current, while being load supplying, also using being connected to a-c transducer
The DC power transmission that direct current between battery exports a-c transducer for electrical interface charges to battery, thus exchanging
When power supply unit stops providing alternating current, battery can be needed not move through the direct current that battery exports for electrical interface by direct current
The operations such as inversion are transferred directly to load, and are load supplying, it is extra not need inversion etc. in the backup power supply system in the application as a result,
Conversion operation, so that battery causes energy to damage by the direct current that direct current exports for electrical interface without going past multiple conversions
It loses, to improve the energy conversion efficiency in standby electricity, realizes the application purpose.
In one implementation, in backup power supply system further include: be connected between the a-c transducer and the load
The first type of voltage step-up/down converter, the first direct current which exports the a-c transducer goes up and down
Pressure is converted to three direct currents, and gives the third direct current electricity output to the load, is the load supplying.As it can be seen that this Shen
The extra conversion operation such as inversion is not needed in backup power supply system please, so that when alternating current is converted into direct current electricity output to load
Buck conversion only need to be carried out, without causing energy loss by multiple conversions, so that the energy improved in standby electricity converts effect
Rate realizes the application purpose.
In one implementation, the first type of voltage step-up/down converter in backup power supply system be additionally attached to the a-c transducer with
For between electrical interface, the first type of voltage step-up/down converter also connects the third direct current electricity output to the direct current direct current for electricity
Mouthful, the third DC power transmission is given to the battery for electrical interface by the direct current, to charge to the battery.It can
See, the extra conversion operation such as inversion is not needed in the backup power supply system of the application, so that the direct current that alternating current is converted to
Buck need to only be carried out and be converted to battery charging, without causing energy loss by multiple inversion conversion, to improve standby electricity
In energy conversion efficiency, realize the application purpose.
In one implementation, in backup power supply system further include: be connected to the a-c transducer and the standby electricity of the direct current
The second type of voltage step-up/down converter between interface, the first direct current which exports the a-c transducer
It carries out buck and is converted to the 4th direct current, and give the direct current for electrical interface the 4th direct current electricity output, by described
Direct current gives the 4th DC power transmission to the battery for electrical interface, to charge to the battery.As it can be seen that the application
The extra conversion operation such as inversion is not needed in backup power supply system, so that the direct current that alternating current is converted to need to only be gone up and down
Pressure is converted to battery charging, without causing energy loss by multiple inversion conversion, to improve the energy conversion in standby electricity
Efficiency realizes the application purpose.
In one implementation, in backup power supply system further include: be connected to the a-c transducer and the standby electricity of the direct current
Unilateal conduction circuit between interface, the direct current of the output of battery described in the unilateal conduction circuit blocks flow back to the exchange confession
Electric equipment.As it can be seen that battery can be effectively prevent defeated to loading when alternating current stops providing alternating current in the backup power supply system of the application
Direct current out flows back to AC power supply device.
In one implementation, the a-c transducer are as follows: Pfc converter.Pfc converter can will exchange as a result,
Electricity switchs to direct current.
In one implementation, in backup power supply system further include: be connected with the load for detecting the load
The current detector of current power and the a-c transducer and the direct current are connected to for the Current limited Control between electrical interface
Device, the current power of the Current limited Control device based on the load, to flowing to the direct current in first direct current for electrical interface
Branch current controlled.As it can be seen that can effectively prevent uprushing because of loads such as business boards in the backup power supply system of the application
The case where causing AC power supply device can not be to load normal power supply.
In one implementation, in backup power supply system further include: be connected between the a-c transducer and delay electric capacity
Voltage detector, the voltage detector is when detecting that first direct current drops into preset threshold value, described in notice
Battery carries out standby cutting and changes.As it can be seen that defeated come real-time monitoring a-c transducer by voltage detector in the backup power supply system of the application
Whether direct current out falls, and when dropping into preset threshold value, notify that battery carries out standby cutting and changes in time, to control
Battery processed is to load supplying, with the normal electricity consumption of proof load.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the connection structure diagram in power grid between AC power supply device and load and battery；
Fig. 2 is the schematic diagram of blade power supply power supply；
Fig. 3 is the electrical schematic of RHUB；
Fig. 4 is the electrical schematic of blade power supply and RHUB；
Fig. 5 is energy transition diagram in existing standby electric scheme；
Fig. 6 is the structural schematic diagram of the backup power supply system of AC power supply device provided by the embodiment of the present application；
Fig. 7 is the backup power supply system structural schematic diagram of RHUB in the embodiment of the present application；
Fig. 8 is another structural schematic diagram of the backup power supply system of AC power supply device provided by the embodiment of the present application；
Fig. 9 is another structural schematic diagram of the backup power supply system of RHUB in the embodiment of the present application；
Figure 10 and Figure 11 is respectively the another structure of the backup power supply system of AC power supply device provided by the embodiment of the present application
Schematic diagram；
Figure 12 is the another structural schematic diagram of the backup power supply system of RHUB in the embodiment of the present application；
Figure 13 a is another structural schematic diagram of the backup power supply system of AC power supply device provided by the embodiment of the present application；
Figure 13 b is another structural schematic diagram of the backup power supply system of RHUB in the embodiment of the present application；
Figure 14 is the attachment structure schematic diagram of delay electric capacity in RHUB；
Figure 15 is the another structural schematic diagram of the backup power supply system of AC power supply device provided by the embodiment of the present application；
Figure 16 is the another structural schematic diagram of the backup power supply system of RHUB in the embodiment of the present application；
Figure 17 is a kind of arrangement signal of circuit board of the backup power supply system of AC power supply device provided by the embodiments of the present application
Figure；
Figure 18 is a kind of flow chart of the standby method for electrically of AC power supply device provided by the embodiments of the present application.
Specific embodiment
Fig. 1 show in power grid the connection structure diagram between AC power supply device and load and battery, AC power supply device
It when normally providing alternating current, while for load supplying, also charges the battery, and is mentioned in AC power supply device stopping
When for alternating current, battery is load supplying.
Wherein, AC power supply device can be the power supply interface equipment of mains system, such as blade power supply, provide for battery
Direct current provides alternating current such as the direct current of 48V for load, such as the alternating current of 220Vac.Load can need to consume to be various
The business board of electric energy, such as fan, general basic module (Common Building Block, CBB) etc..Battery can be can
Electric energy can also be exported in the form of direct current and be carried out to load by the equipment such as the battery that the electric energy of direct current is stored
Power supply.
In existing standby electric scheme, the standby electric scheme of AC power supply device generallys use UPS scheme, and this scheme exists
The problems such as standby electric at high cost, energy transfer efficient is low.It is converged using exchanging blade power supply as AC power supply device as radio frequency remoto module
For the standby electricity of accumulation (Radio Remote Unit Hub, RHUB) system, as shown in Figure 2, the alternating current that blade power supply provides
It is transmitted through RHUB and is transmitted to PRRU.The in-line power framework of the RHUB is as shown in Figure 3, and the alternating current that blade power supply provides is first
After first passing through PFC, the direct current of 380V is obtained, and when powering to business board, voltage required for being converted by DC/DC
Direct current is powered such as the direct current of 56V or 12V for other power supply units (Power Sourcing Equipment, PSE), or
Person is the power supply of the business boards such as fan, CBB.
In the specific implementation, as shown in Figure 4, the alternating current that blade power supply provides needs to first pass around in external power supply module
Ac/dc (Alternating Current/Direct Current, AC/DC) conversion, be rectified into direct current, using
After buck (Direct Current/Direct Current, DC/DC) conversion, filled for the battery in externally-connectedbattery battery module
Electricity；And the alternating current that blade power supply provides passes through bypass mode for alternating current transmission to RHUB, carries out PFC and DC/DC by RHUB
The power supplies such as conversion is finally PSE, fan or CBB；And when blade power cut-off normally can not provide alternating current, battery is defeated
Direct current out is being needed after DC/DC is converted by a DC/AC (Direct Current/Alternating
Current, DC/AC) conversion, then the alternating current transmission after conversion is carried out PFC and DC/DC by RHUB and converted to RHUB, thus
It powers after reaching blade power cut-off for PSE, fan or CBB etc..
It should be noted that battery internal battery management system (BATTERY MANAGEMENT SYSTEM, BMS) and DC/
DC converter etc., to carry out standby electric switching control to the battery core packet in battery and be gone up and down to the direct current of battery core packet output
Pressure conversion.
That is, when alternating current is normal, alternating current is exported by bypass mode in Fig. 4, supplied for AC load
Electricity；And when alternating current stopping, power supply is switched to inverter mode, at this point, battery output DC power supply passes through the inversion mould of power source internal
Block is converted to alternating current, is powered for AC load.
Therefore, in existing standby electric scheme, battery final purpose is loaded for the business board etc. in AC power supply device
Be powered, but the DC voltage of battery output needs to be converted to alternating voltage by inversion, and alternating voltage using
PFC, DC/DC are converted to DC voltage and could be powered for business board, due to there is the multiple conversions process such as inversion, PFC,
As shown in Figure 5, larger part energy can be lost when the energy transmission for causing battery to export is to business board, therefore, this is standby electric
The energy conversion efficiency of electric energy is lower in scheme, and non-optimal standby electric scheme.
It is existing low for the energy conversion efficiency in electric scheme to solve the problems, such as, it needs AC power supply device and standby electricity system
System is coupled together, can be across conversion operations such as inversion, PFC, by the simplest by position of the battery pack in backup power supply system
Mode is load supplying.
For this purpose, provided in backup power supply system in the application all the way direct current for electrical interface, the interface and externally-connectedbattery battery module phase
Connection carries out standby electricity, eliminates rectifications and the inverter modules such as AC/DC and the DC/AC in external power supply module, improves energy and turns
Efficiency is changed, to further reduce standby electric cost, also can reduce the volume of backup power supply system.
For example, as shown in Figure 6, the structure of the backup power supply system of the AC power supply device proposed by the embodiment of the present application is shown
It is intended to, backup power supply system is connected with AC power supply device, and standby electricity is carried out while for load supplying, which can wrap
It includes with flowering structure:
A-c transducer 601 and direct current are for electrical interface 602, and a-c transducer 601 is connected with AC power supply device, direct current
Standby electrical interface 602 is connected between a-c transducer 601 and battery, moreover, direct current is also connected with load for electrical interface 602.
Wherein, when commercial power supply is normal, a-c transducer 601 is receiving alternating current provided by AC power supply device
Afterwards, the first direct current is converted alternating current to, and by the first DC power transmission to load, for load supplying.At the same time,
A-c transducer 601 by AC conversion be the first direct current after, direct current gives the first DC power transmission for electrical interface 602
Battery, to charge the battery.
As it can be seen that charge while the alternating current that provides of AC power supply device is to load supplying to battery, during this,
It is not related to multiple inversion process, reduces energy conversion loss.
In addition to this, when alternating current stops powering, i.e., when AC power supply device stops providing alternating current, direct current is for electrical interface
602 the second DC power transmissions for exporting battery are load supplying to load.And during this, it is not related to inversion equally
Journey, to further increase energy conversion efficiency.
Wherein, a-c transducer 601 here can be the rectification module that can convert alternating current to direct current, such as will
The alternating current of 220V is converted to AC/DC converter of 380 direct current etc..And it loads and can be understood as various needing to consume electric energy
Equipment, such as fan or CBB business board, alternatively, such as needing to provide the PSE of powered by direct current for other equipment.In battery
Integrated BMS and DC/DC converter carries out electric current conversion in one, the direct current come to direct current for the transmission of electrical interface 602, is battery
Charging.
By above scheme it is found that the alternating current for being provided AC power supply device using a-c transducer in the present embodiment is direct
Carry out ac/dc conversion, after obtaining direct current, be load supplying while, also using be connected to a-c transducer and
The DC power transmission that direct current between battery exports a-c transducer for electrical interface charges to battery, to supply in exchange
When electric equipment stops providing alternating current, battery can be needed not move through the direct current that battery exports for electrical interface by direct current inverse
The operations such as change are transferred directly to load, and are load supplying, and the present embodiment does not need the extra conversion behaviour such as inversion in standby electricity as a result,
Make, and battery will not cause energy loss by multiple conversions for the direct current that electrical interface exports by direct current, to improve
Energy conversion efficiency in standby electricity.
By taking RHUB as an example, the external power supply module before RHUB is saved in RHUB power supply system, in the present embodiment, and
Direct current is set for electrical interface, specific structure is as shown in Figure 7, includes: that Pfc converter and direct current connect for electricity in RHUB in RHUB
Mouthful, the alternating current that AC power supply device provides is inputted from Pfc converter, and is converted into direct current by Pfc converter, such as by 220V
Mains AC be converted into the direct current of 380V, later, the direct current electricity output that Pfc converter exports is to load and the standby electricity of direct current
Interface is load supplying, and is transferred to battery by direct current for electrical interface, is charged for battery, realizes standby electricity；And it is supplied in exchange
When the mains AC of electric equipment stops providing, battery exports direct current, and is transferred to load by direct current for electrical interface, for load
Standby electricity power supply is realized in power supply.No setting is required in the above RHUB power supply system as a result, extra inverter module, but pass through direct current
Standby electrical interface provides a DC channel, carries out battery charging and discharging by the DC channel.
It in one implementation,, can be with based on the backup power supply system in Fig. 6 in order to realize to load directly power supply
First type of voltage step-up/down converter 603, first type of voltage step-up/down converter 603 are concatenated between a-c transducer 601 and load
A-c transducer 601 and direct current are serially connected between electrical interface 602, as shown in Figure 8, such first type of voltage step-up/down converter 603
The first direct current that a-c transducer 601 is exported such as 380V direct current carries out buck conversion, obtains the third of relevant voltage
Direct current while being directly load supplying, is transferred to direct current for electrical interface 602, charges for battery such as the direct current of 56V.And
In order to which the conversion of other bucks can also be concatenated on corresponding load branch to the load supplying for needing different DC voltages
Device is powered for respective load.
By taking RHUB as an example, serial frame is changed to by parallel architecture in RHUB power supply system, and increase all the way on 56V branch road
DC channel, thus, it is possible to 56V branch can power in the case where battery standby electricity for 12V branch, as shown in Figure 9,
It include: Pfc converter, DC/DC converter and direct current in RHUB for electrical interface, the alternating current that AC power supply device provides is from PFC
Converter input, and direct current is converted by Pfc converter, the mains AC of 220V is such as converted into the direct current of 380V,
Later, the direct current electricity output DC/DC converter of Pfc converter output, carries out decompression conversion, and output 56V direct current supplies electricity to load PSE
It powers with direct current for electrical interface for load PSE, and is transferred to battery by direct current for electrical interface, charge for battery, realize standby
Electricity；Meanwhile 56V branch can also be the power supply of the business boards such as the load such as fan and CBB of 12V branch road, it is certainly intermediate to lead to
It crosses and concatenates a DC/DC converter again and carry out decompression conversion, the 56V direct current of 56V branch road is converted into 12V DC and supplies electricity to wind
Fan and CBB power supply；And when the mains AC of AC power supply device stops providing, battery exports direct current, and standby by direct current
Electrical interface is transferred to load, powers for load PSE, or power after being depressured to load fan and CBB, realizes standby electric power supply.
No setting is required in the above RHUB power supply system as a result, extra inverter module, but by direct current for electrical interface provide one it is straight
Logical circulation road carries out battery charging and discharging by the DC channel and is further changed to serially in RHUB power supply system by parallel architecture
Direct current is arranged for electrical interface in framework and 56V branch row, forms branch output channel all the way, is converted to without setting 56V
Thus the circuit of 380V reduces circuit complexity, improves the energy conversion efficiency of electric energy.
In another implementation, battery is plugged in order to realize, it, can based on the backup power supply system in Fig. 6
To concatenate second type of voltage step-up/down converter 604 between electrical interface 602 with direct current in a-c transducer 601, such as institute in Figure 10
Show, while the first direct current that a-c transducer 601 exports is load supplying, the second type of voltage step-up/down converter 604 turns exchange
The first direct current that parallel operation 601 exports such as 380V direct current carries out buck conversion, obtains the 4th direct current of relevant voltage, passes
Direct current is defeated by for electrical interface 602, is charged for battery.And for the load supplying to the different DC voltages of needs, it can also be in phase
Other type of voltage step-up/down converter are concatenated on the load branch answered, and are powered for respective load.
And in order to when alternating current stops providing alternating current, prevent battery from flowing back to Alternating Current Power Supply to the direct current of load output
An individual event conducting channel 605, such as capacitor circuit unit can be set in being based on backup power supply system shown in fig. 6, such as in equipment
Shown in Figure 11, so that electric current only be allowed to pass through a-c transducer 601 to load and direct current for electrical interface from AC power supply device
602 transmission do not allow electric current to be transmitted from direct current for electrical interface 602 to a-c transducer 601 and AC power supply device, to reach
The purpose for preventing electric current from flowing backward.
By taking RHUB power supply system as an example, based on the RHUB structural schematic diagram in Fig. 9, where DC/DC converter on circuit
The unilateal conduction circuit of reverse-filling is concatenated, as shown in Figure 12, the direct current which allows Pfc converter to export
To direct current for electrical interface and load transmission, direct current is not allowed to convert for the direct current that electrical interface exports to DC/DC converter and PFC
Device transmission, realizes electric current reverse-filling.
In one implementation, since the output power of AC power supply device is limited, in order to prevent because business board etc. is negative
The case where sudden load increase causes AC power supply device can not be to load normal power supply is carried, needs to detect the supply current of load to control
The charging paths electric current of battery charging processed.For this purpose, electric current can be arranged on based on load branch in backup power supply system shown in fig. 6
Detector 606 carrys out the current power of real-time detection load, and in direct current for branch Lu Shangshe where electrical interface as shown in Figure 13 a
Current limited Control device 607 is set, according to the current power of load, the DC current exported to a-c transducer 601 is standby to direct current
The branch current of electrical interface 602 carries out Current limited Control.
By taking RHUB power supply system as an example, based on RHUB structural schematic diagram as shown in figure 12, in 56V branch and 12V branch
On be respectively provided with current detector, as shown in figure 13b, and in direct current for Current limited Control device is concatenated on electrical interface, thus when load
When such as current power of PSE, fan and CBB is uprushed and battery is in charged state, RHUB limits the charging current of battery, mentions
The electric current of load branch is risen, so that the electric power that can satisfy load when the output power in RHUB internal electric source is limited fills
Foot, the normal operation of proof load.
In AC power supply device, voltage falls suddenly when alternating current stops power supply in order to prevent, it will usually go here and there on bus
Delay electric capacity is arranged as shown in the RHUB structure in Figure 14 in connection delay electric capacity between Pfc converter and load, still, due to
Delay electric capacity is provided on power supply buses, busbar voltage meeting gradual rolloff, is powering instead in certain time length such as 20 milliseconds
It can be remained unchanged in 20 milliseconds of branch road, branch of powering as a result, road can not learn the case where alternating current stops supply in time, it may appear that
Standby cutting changes the case where causing load power down can not work normally not in time.To solve this problem, based on standby electricity shown in fig. 6
In system, voltage detector 609 can be set on bus, such as institute in Figure 15 between delay electric capacity 608 and a-c transducer 601
Show, for detecting whether the direct current of the first direct current such as 380V of a-c transducer output falls, if exchange conversion
When falling and dropping into preset threshold value occur in first direct current of device output, then notice battery change for cutting in time,
For load supplying.
Wherein, threshold value here can be configured according to demand, by taking RHUB power supply system as an example, be handed over inside current RHUB
The electricity that pours off can keep continuing working in 20ms, and the alarm of delay electric capacity, that is, dry contact issues time about 5ms, and battery receptacle is to alerting simultaneously
It completes to change for cutting and needs about 5ms, therefore the at most acceptable Voltage Drop time is 10ms, when voltage falls since highest point
After 10ms, PFC output voltage is about 340Vdc, is based on this, and 340Vdc (this electricity can be set the threshold in the present embodiment
Pressure is not suitable for all scenes, is illustrated as example).
By taking RHUB power supply system as an example, based on RHUB power supply system structural schematic diagram shown in Figure 13, Pfc converter with
Voltage detector is set between DC/DC converter, and as shown in Figure 16, the 380V for monitoring Pfc converter output in time is straight
Whether galvanic electricity is fallen, and when occurring falling and dropping into 340Vdc, is driven by driving circuit utilize monitoring interface in time
The BMS of battery is notified, so that the battery core packet controlled in battery exports direct current after DC/DC is converted to load supplying, to protect
Demonstrate,prove the normal electricity consumption of load.
Based on the implementation of the above backup power supply system, in order to which the direct current in backup power supply system is real on circuit boards for electrical interface
It is existing, it needs to carry out typesetting again to existing circuit board, as shown in Figure 17, which includes at least power panel 1701, bears
Business board 1702 is carried, power panel 1701 is connected respectively at battery with the a-c transducer in backup power supply system, and payload traffic plate
1702 are connected with load, in addition to this, in circuit board further include having direct current for electrical interface plate 1703, in which:
The rear panel of the circuit board, the payload traffic plate 1702 and the power panel 1701 is arranged in power panel 1701
It is adjacent, and the front panel of the circuit board is arranged in the payload traffic plate 1702, the direct current is for the setting of electrical interface plate 1703
In the front panel of the circuit board, and the direct current is for electrical interface plate 1703 and the payload traffic plate 1702 and the power panel
1701 difference are adjacent.
Power panel is put into rear panel in the circuit board of backup power supply system as a result, payload traffic plate is put into front panel, this
Sample has in plate vacant space setting direct current for electrical interface plate in front.
Based on the realization of the backup power supply system of AC power supply device in Fig. 6-Figure 16, the embodiment of the present application h additionally provides one kind
The standby method for electrically of AC power supply device, this is applied to the backup power supply system of AC power supply device for method for electrically, and the backup power supply system is extremely
Less include a-c transducer and direct current for electrical interface, the standby method for electrically may comprise steps of, as shown in Figure 18:
Step 1801: the alternating current that the AC power supply device provides is converted into first directly using the a-c transducer
Galvanic electricity.
Step 1802: while utilization first direct current is load supplying, first direct current being utilized into direct current
Standby electrical interface is transferred to battery, to charge to the battery；
In addition to this, when the AC power supply device stops providing alternating current, the battery is exported in the present embodiment
The second direct current the load is transferred to for electrical interface by the direct current, be the load supplying.
Specifically, third direct current is obtained after first direct current being carried out buck conversion in the present embodiment,
It gives the third DC power transmission to the load again, is the load supplying.Meanwhile it will be described in third direct current utilization
Direct current is transferred to the battery for electrical interface, to charge to the battery.
Alternatively, obtaining third direct current after first direct current to be carried out to buck conversion in the present embodiment as load
While power supply, the 4th direct current is obtained after first direct current can be carried out to buck conversion, then straight by the described 4th
Galvanic electricity is transferred to the battery using the direct current for electrical interface, to charge to the battery.
In addition, in the present embodiment institute can be stopped when the battery exports direct current using the direct current for electrical interface
The direct current for stating output flows back to the AC power supply device.
In addition to this, can also be by the current power of the detection load in the present embodiment, then it is based on the current function
Rate is controlled for the branch current of electrical interface to flowing to the direct current in first direct current, with the just common of proof load
Electricity.
In addition, whether can be fallen by detecting the first direct current of the a-c transducer output in the present embodiment
And preset threshold value is dropped to, thus notify the battery to carry out standby cutting and change in time when the first direct current drops into threshold value,
The case where preventing load power down generation.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.
Claims (16)
1. a kind of backup power supply system of AC power supply device characterized by comprising
The alternating current for receiving the alternating current of AC power supply device offer, and is converted to the first direct current by a-c transducer
Electricity is load supplying；
Direct current is connected between the a-c transducer and battery for electrical interface, the direct current for electrical interface, is used for the friendship
The first DC power transmission that stream transformer exports gives the battery, to charge to the battery；
The direct current is also used to export the battery when the AC power supply device stops providing alternating current for electrical interface
Second DC power transmission gives the load, is the load supplying.
2. backup power supply system according to claim 1, which is characterized in that further include:
First type of voltage step-up/down converter is connected between the a-c transducer and the load, is used for the a-c transducer
First direct current of output carries out buck and is converted to three direct currents, and gives the third direct current electricity output to the load,
For the load supplying.
3. backup power supply system according to claim 2, it is characterised in that:
First type of voltage step-up/down converter is connected to the a-c transducer and the direct current between electrical interface, being also used to institute
State third direct current electricity output to the direct current for electrical interface, by the direct current for electrical interface by the third DC power transmission to institute
Battery is stated, to charge to the battery.
4. backup power supply system according to claim 1, which is characterized in that further include:
Second type of voltage step-up/down converter is connected to the a-c transducer and the direct current between electrical interface, is used for the friendship
First direct current of stream transformer output carries out buck and is converted to the 4th direct current, and the 4th direct current electricity output is given
The direct current gives the 4th DC power transmission to the battery for electrical interface for electrical interface, by the direct current, to the electricity
It charges in pond.
5. backup power supply system according to claim 1, which is characterized in that further include:
Unilateal conduction circuit is connected to the a-c transducer and the direct current between electrical interface, for stopping the battery
The direct current of output flows back to the AC power supply device.
6. backup power supply system according to claim 1, which is characterized in that the a-c transducer are as follows: PFC
(Power Factor Correction, PFC) converter.
7. backup power supply system according to claim 1, which is characterized in that further include:
Current detector is connected, for detecting the current power of the load with the load；
Current limited Control device is connected to the a-c transducer and the direct current between electrical interface, for based on the load
Current power is controlled for the branch current of electrical interface the direct current is flowed in first direct current.
8. backup power supply system according to claim 1, which is characterized in that further include:
Voltage detector is connected between the a-c transducer and delay electric capacity, and the delay electric capacity is connected to the exchange
Between converter and the load, the voltage detector is for detecting whether first direct current drops into preset threshold
Value, if so, the battery is notified to carry out standby cutting and change.
9. a kind of circuit board of the backup power supply system of AC power supply device, which is characterized in that the backup power supply system includes: exchange conversion
For electrical interface, the circuit board is included at least for device and direct current: power panel, payload traffic plate, the power panel respectively with battery and
A-c transducer in the backup power supply system is connected, and the payload traffic plate is connected with the load, further includes:
Direct current is for electrical interface plate；
Wherein, the rear panel of the circuit board is arranged in the power panel, and the payload traffic plate is adjacent with the power panel, and
The front panel of the circuit board is arranged in the payload traffic plate, before the circuit board is arranged in for electrical interface plate in the direct current
Panel, and the direct current is adjacent with the payload traffic plate and power panel difference for electrical interface plate.
10. a kind of standby method for electrically of AC power supply device, which is characterized in that the standby electricity system applied to the AC power supply device
System, the backup power supply system include at least a-c transducer and direct current for electrical interface, and the standby method for electrically includes:
The alternating current that the AC power supply device provides is converted into the first direct current using the a-c transducer；
Using first direct current be load supplying while, first direct current is transferred to using direct current for electrical interface
Battery, to charge to the battery；
When the AC power supply device stops providing alternating current, the second direct current that the battery is exported passes through the direct current
Standby electrical interface is transferred to the load, is the load supplying.
11. according to the method described in claim 10, it is characterized by further comprising:
Third direct current is obtained after first direct current is carried out buck conversion；
It gives the third DC power transmission to the load, is the load supplying.
12. according to the method for claim 11, which is characterized in that further include:
The third direct current is transferred to the battery using the direct current for electrical interface, to charge to the battery.
13. according to the method described in claim 10, it is characterized by further comprising:
The 4th direct current is obtained after first direct current is carried out buck conversion；
4th direct current is transferred to the battery using the direct current for electrical interface, to charge to the battery.
14. according to the method described in claim 10, it is characterized by further comprising:
When the battery exports direct current using the direct current for electrical interface, the direct current of the output is stopped to flow back to described
AC power supply device.
15. according to the method described in claim 10, it is characterized by further comprising:
Detect the current power of the load；
It is controlled for the branch current of electrical interface based on the current power to flowing to the direct current in first direct current.
16. according to the method described in claim 10, it is characterized by further comprising:
Whether the first direct current for detecting the a-c transducer output drops into preset threshold value, if so, notifying the electricity
Pond carries out standby cutting and changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742108.1A CN109428384A (en) | 2017-08-25 | 2017-08-25 | A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742108.1A CN109428384A (en) | 2017-08-25 | 2017-08-25 | A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109428384A true CN109428384A (en) | 2019-03-05 |
Family
ID=65500626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710742108.1A Pending CN109428384A (en) | 2017-08-25 | 2017-08-25 | A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109428384A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112015093A (en) * | 2019-05-31 | 2020-12-01 | 广东美的制冷设备有限公司 | Drive control method, device, household appliance and computer readable storage medium |
| CN112018872A (en) * | 2020-08-20 | 2020-12-01 | 科华恒盛股份有限公司 | UPS control method and UPS |
| CN114094692A (en) * | 2021-11-17 | 2022-02-25 | 国网浙江省电力有限公司宁波供电公司 | Power supply system and method of transformer substation equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1472863A (en) * | 2002-08-02 | 2004-02-04 | 华为技术有限公司 | Single-deck power supply backup method and backup system |
| JP3611316B2 (en) * | 2001-10-29 | 2005-01-19 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ELECTRIC DEVICE, COMPUTER DEVICE, POWER SWITCHING DEVICE, AND POWER SWITCHING METHOD |
| CN101685978A (en) * | 2008-09-28 | 2010-03-31 | 韦永奎 | Postpose type backup power system |
| CN102111011A (en) * | 2011-02-28 | 2011-06-29 | 华为技术有限公司 | Power failure maintaining method and circuit |
| CN102593907A (en) * | 2012-02-29 | 2012-07-18 | 华为技术有限公司 | Power supply method and device as well as base station |
| CN102810904A (en) * | 2011-06-03 | 2012-12-05 | 中兴通讯股份有限公司 | Method for recovering equipment state after low voltage rise, main control signal board and system |
-
2017
- 2017-08-25 CN CN201710742108.1A patent/CN109428384A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3611316B2 (en) * | 2001-10-29 | 2005-01-19 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ELECTRIC DEVICE, COMPUTER DEVICE, POWER SWITCHING DEVICE, AND POWER SWITCHING METHOD |
| CN1472863A (en) * | 2002-08-02 | 2004-02-04 | 华为技术有限公司 | Single-deck power supply backup method and backup system |
| CN101685978A (en) * | 2008-09-28 | 2010-03-31 | 韦永奎 | Postpose type backup power system |
| CN102111011A (en) * | 2011-02-28 | 2011-06-29 | 华为技术有限公司 | Power failure maintaining method and circuit |
| CN102810904A (en) * | 2011-06-03 | 2012-12-05 | 中兴通讯股份有限公司 | Method for recovering equipment state after low voltage rise, main control signal board and system |
| CN102593907A (en) * | 2012-02-29 | 2012-07-18 | 华为技术有限公司 | Power supply method and device as well as base station |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112015093A (en) * | 2019-05-31 | 2020-12-01 | 广东美的制冷设备有限公司 | Drive control method, device, household appliance and computer readable storage medium |
| CN112018872A (en) * | 2020-08-20 | 2020-12-01 | 科华恒盛股份有限公司 | UPS control method and UPS |
| CN112018872B (en) * | 2020-08-20 | 2022-05-06 | 科华恒盛股份有限公司 | UPS control method and UPS |
| CN114094692A (en) * | 2021-11-17 | 2022-02-25 | 国网浙江省电力有限公司宁波供电公司 | Power supply system and method of transformer substation equipment |
| CN114094692B (en) * | 2021-11-17 | 2023-08-18 | 宁波送变电建设有限公司永耀科技分公司 | Power supply system and method for substation equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103545867B (en) | Battery management circuit for managing battery device, and battery management method | |
| CN113949111B (en) | Energy storage system | |
| CN102368631B (en) | Efficient and reliable power supply architecture of data center electronic equipment | |
| KR101877098B1 (en) | Rapid multi-level recharge system | |
| US10374445B2 (en) | Isolated bidirectional constant-current maintenance system based on power supply source of shared device | |
| CN105406580B (en) | A kind of electric power system and method | |
| CN104158273A (en) | Battery forming and capacity grading system | |
| CN107069976A (en) | A kind of expansible group string data large-scale energy storage system | |
| CN103248115B (en) | Power supply system for transformer substation inspection robot and charging method of power supply system | |
| CN109428384A (en) | A kind of backup power supply system of AC power supply device, circuit board and standby method for electrically | |
| CN115954995A (en) | Standby power supply system of vehicle-mounted LCD (liquid Crystal display) play controller and control method | |
| CN110391682B (en) | Battery charging and discharging circuit | |
| CN101599657A (en) | The PWM shunting realizes the method for dynamic voltage balancing of battery pack in charging state | |
| CN107154665A (en) | A kind of discharge and recharge combiner and electric power system | |
| CN107154666A (en) | A kind of batteries management system and electric power system | |
| CN101944754A (en) | Direct current step-up/step-down circuit | |
| CN102904317A (en) | Bidirectional electric energy transfer circuit | |
| CN109193902A (en) | A kind of vehicle electric power supply control system | |
| CN106026174B (en) | A kind of grid-connected photovoltaic system with intelligent power dividing function | |
| CN107976639A (en) | A kind of battery pack aging equipment and method | |
| CN202042930U (en) | Battery management system for solar air conditioner | |
| CN105529746B (en) | A kind of flexibility distribution system | |
| CN211151596U (en) | Multithreading-based energy distribution system | |
| CN109038699A (en) | A kind of management method of base station power system and DC power supply multiple groups battery | |
| CN211856844U (en) | Parallel power supply device aging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190305 |