CN105656065B - A kind of energy storage control system and method - Google Patents
A kind of energy storage control system and method Download PDFInfo
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- CN105656065B CN105656065B CN201410777984.4A CN201410777984A CN105656065B CN 105656065 B CN105656065 B CN 105656065B CN 201410777984 A CN201410777984 A CN 201410777984A CN 105656065 B CN105656065 B CN 105656065B
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Abstract
The present invention provides a kind of energy storage control system and method, wherein energy storage control system includes AC/DC rectification modules, isolating transformer, two-way DC/DC conversion modules, on-off circuit and the first super capacitor module, when electric network fault has a power failure, first super capacitor module is powered by the on-off circuit of conducting for DC load, it drops under voltage in the first preset range and after on-off circuit disconnection, continuing as DC load by two-way DC/DC conversion modules powers.Since the first super capacitor module has the advantages that service life is long, the charging time is short and operating temperature range is wide, therefore it is suitable as the backup power supply of energy storage control system, and the first super capacitor module is directly connected by the relatively low supply line of impedance with DC load, current supply loss is reduced, improves power supply efficiency.Two-way DC/DC conversion modules are supplied to DC load after being amplified to its voltage after dropping under voltage, to meet the voltage requirements of DC load, improve power supply efficiency.
Description
Technical field
The present invention relates to technical field of power systems, more specifically to a kind of energy storage control system and method.
Background technology
Electric operation power is the indispensable component of electric system, is to control, signalling arrangement, measurement, relay
The living loads such as the control such as protection, automatic device load, emergency lighting and circuit breaker part, closing operation, uninterruptedly provide direct current
The equipment of power supply.Electric operation power mainly includes power exchanger and energy storage device, and wherein accumulator is electric operation power
In more common energy storage device.
Fig. 1 is the electric operation power currently with batteries to store energy, including isolating transformer 101, AC/DC rectification modules
102 and accumulator 103.When network voltage normal power supply, AC/DC rectification modules 102 by the power supply that isolating transformer provides into
It powers for DC load after row rectification, and charges for the accumulator 103 of energy storage；When network voltage is stopped power supply, AC/DC rectifications
The input terminal of module 102 does not have power input, and accumulator 103 releases the electric energy of storage at this time, continues to DC load
Power supply ensures that power equipment runs well, and ensures that power equipment completes corresponding protection operation.
Although the stored energy operation power supply architecture of accumulator shown in FIG. 1 is simple, and technology maturation, there are still many not
Foot, such as the service life of accumulator 103 is short, the charging time is long, cannot fully powered-on and operating temperature range it is narrow and waste and old
Accumulator also can also cause environmental pollution, therefore still need to make improvements.
The content of the invention
In view of this, the object of the present invention is to provide a kind of energy storage control system and method for supplying power to, the energy storage control systems
Have the advantages that the charging time is short, service life is long, operating temperature range is wide, at low cost and power supply efficiency is high.
To achieve these goals, the present invention provides following technical solution：
The present invention provides a kind of energy storage control system, including AD/DC rectification modules and isolating transformer, the isolation transformation
Device is connected with the AC/DC rectification modules, and the first output terminal and second output terminal of the AC/DC rectification modules export for power supply
End, the energy storage control system further include：
First super capacitor module, on-off circuit and two-way DC/DC conversion modules, wherein：
The first end of the on-off circuit is connected with the first input end of the two-way DC/DC conversion modules, the switch
The second end of circuit is connected with the first output terminal of the two-way DC/DC conversion modules, and the first end of the on-off circuit with
The tie point of the first input end of the two-way DC/DC conversion modules is connected with the first end of the first super capacitor module,
The tie point and the AC/DC of first output terminal of the second end of the on-off circuit and the two-way DC/DC conversion modules are whole
First output terminal of flow module is connected；
The second end of the first super capacitor module is connected with the second input terminal of the two-way DC/DC conversion modules,
And the second output terminal of the two-way DC/DC conversion modules is connected with the second output terminal of the AC/DC rectification modules.
The system also includes the second super capacitor modules；The first end of the second super capacitor module and described two-way
First output terminal of DC/DC conversion modules is connected with the tie point of the second end of the on-off circuit, second super capacitor
The second end of module is connected with the second output terminal of the two-way DC/DC conversion modules, and the second super capacitor module
Capacity is less than the capacity of the first super capacitor module.
Preferably, the DC load that the capacity of the second super capacitor module is connected by the AC/DC rectification modules
Power decision.
Preferably, the on-off circuit is dc switch, and the first end of the dc switch is converted with the two-way DC/DC
The first input end connection of module, the second end of the dc switch and the first output terminal of the two-way DC/DC conversion modules
Connection.
Preferably, the on-off circuit includes：
First diode, the second diode, the 3rd diode, the 4th diode and NPN type MOSFET pipes；Described 1st
The anode of pole pipe is connected with the cathode of second diode；The moon of the cathode of first diode and the 3rd diode
Pole connects；The anode of second diode is connected with the anode of the 4th diode；The drain electrode of the NPN type MOSFET pipes
It is connected with the cathode of first diode with the tie point of the cathode of the 3rd diode；The NPN type MOSFET pipes
Source electrode is connected with the anode of second diode with the tie point of the anode of the 4th diode.
The present invention also provides a kind of energy storage control method, applied in above-mentioned energy storage control system, the described method includes：
In the case where isolating transformer is stopped power supply, control on-off circuit conducting is so that DC load and the first super electricity
Supply line's conducting between molar group；
First super capacitor module releases voltage supplied, and voltage is powered by the supply line of conducting for DC load；
When the voltage of the first super capacitor module drops in the first preset range, the on-off circuit is controlled to break
It opens so that the supply line between DC load and the first super capacitor module disconnects；
In the case where the supply line disconnects, the control source of the first super capacitor module to two-way DC/DC
Conversion module；
The two-way DC/DC conversion modules are amplified the voltage of input, and amplified voltage are supplied to described
DC load；
In isolating transformer is stopped power supply and controls on-off circuit disconnection process, the second super capacitor module will continue to release
Electric discharge pressure, is supplied to DC load；
After the on-off circuit is controlled to disconnect, discharged by the first super capacitor module by two-way DC/DC conversion modules
Voltage is powered for DC load.
Preferably, the method further includes：
Drop in the voltage of the first super capacitor module in preset range and the control on-off circuit disconnected
The voltage of release is supplied to DC load by Cheng Zhong, the second super capacitor module；
In the case where control states on-off circuit disconnection so that supply line disconnects, by the first super capacitor module
Control source is to two-way DC/DC conversion modules.
Preferably, the method further includes：
In the case of isolating transformer normal power supply, the on-off circuit is controlled to disconnect so that AC/DC rectification modules and
Supply line between first super capacitor module disconnects；
The AC/DC rectification modules are charged by the two-way DC/DC conversion modules for the first super capacitor module；
When the output voltage of the AC/DC rectification modules and the difference in voltage of the first super capacitor module are pre- second
If when in scope, the on-off circuit is controlled to turn on the power supply so that between AC/DC rectification modules and the first super capacitor module
Line conduction；
The AC/DC rectification modules are charged by the supply line for the first super capacitor module.
Preferably, the method further includes：
In the case of isolating transformer normal power supply, the AC/DC rectification modules charge for the second super capacitor module；
It stops power supply in isolating transformer and in the case where the supply line disconnects, the first super capacitor module
Control source to two-way DC/DC conversion modules；The two-way DC/DC conversion modules are amplified the voltage of input, and will
Amplified voltage is supplied to the DC load, while charges for the second super capacitor module.
Preferably, it is described in above-mentioned.
Compared with prior art, advantages of the present invention is as follows：
Energy storage control system provided by the invention converts the first super capacitor module and on-off circuit and two-way DC/DC
Tie point between module is connected, under isolating transformer power supply trouble, can control on-off circuit conducting make DC load and
Supply line's conducting between first super capacitor module, such first super capacitor module substitution accumulator is as standby electricity
Source is powered by the supply line of conducting for DC load.And it is pre- to drop to first in the voltage of the first super capacitor module
If when in scope, on-off circuit can be controlled to disconnect the power supply so that between AC/DC rectification modules and the first super capacitor module
Circuit disconnects；So two-way DC/DC conversion modules start, and two-way DC/DC conversion modules is made to be amplified the voltage of input, will
Amplified voltage is supplied to DC load.
It is excellent since the first super capacitor module is longer than service lifetime of accumulator, the charging time is short and operating temperature range is wide etc.
Point, therefore the first super capacitor module is very suitable for backup power supply of the substitution accumulator as energy storage control system, and the first surpass
Grade electric capacity module can directly be connected by supply line with DC load, and the impedance of supply line is relatively low, so as to subtract
Lack current supply loss, improve power supply efficiency, while when the voltage of the first super capacitor module is dropped in the first preset range, the
One super capacitor module is supplied to directly after being amplified by two-way DC/DC conversion modules to the voltage of the first super capacitor module
Current load, so that voltage meets the voltage requirements of DC load, that is to say, that even if the voltage of the first super capacitor module can not
When meeting the voltage requirements of DC load, DC load can be still powered by energy storage control system provided by the invention,
So as to improve the power supply efficiency of energy storage control system.
Description of the drawings
It in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram of existing energy storage control system；
Fig. 2 is a kind of structure diagram of energy storage control system provided in an embodiment of the present invention；
Fig. 3 is another structure diagram of energy storage control system provided in an embodiment of the present invention；
Fig. 4 is a kind of schematic diagram of on-off circuit in energy storage control system provided in an embodiment of the present invention；
Fig. 5 is a kind of schematic diagram of the current direction of on-off circuit shown in Fig. 4；
Fig. 6 is another schematic diagram of the current direction of on-off circuit shown in Fig. 4；
Fig. 7 is the first flow chart of energy storage control method provided in an embodiment of the present invention；
Fig. 8 is second of flow chart of energy storage control method provided in an embodiment of the present invention；
Fig. 9 is the third flow chart of energy storage control method provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment belongs to the scope of protection of the invention.
An embodiment of the present invention provides a kind of energy storage control systems, for being powered to DC load, energy storage control
The structure diagram of system as shown in Fig. 2, including：AC/DC rectification modules 11, isolating transformer 12, the first super capacitor module
13rd, on-off circuit 14 and two-way DC/DC conversion modules 15.
Wherein, the isolating transformer 12 is connected with the AC/DC rectification modules 11, the AC/DC rectification modules 11
First output terminal and second output terminal are power output end；The first end of the on-off circuit 14 is converted with the two-way DC/DC
The first input end connection of module 15, the second end of the on-off circuit 14 and the first of the two-way DC/DC conversion modules 15
Output terminal connects, and the first end of the on-off circuit 14 and the company of the first input end of the two-way DC/DC conversion modules 15
Contact is connected with the first end of the first super capacitor module 13, the second end of the on-off circuit 14 and the two-way DC/
The tie point of first output terminal of DC conversion modules 15 is connected with the first output terminal of the AC/DC rectification modules 11.
The second end of the first super capacitor module 13 and the second input terminal of the two-way DC/DC conversion modules 15 connect
It connects, and the second output terminal of the two-way DC/DC conversion modules 15 and the second output terminal phase of the AC/DC rectification modules 11
Even.
In embodiments of the present invention, when under 12 normal power supply state of isolating transformer, AC/DC rectification modules 11 are directly straight
Current load power, to ensure that DC load can work normally, at the same the first super capacitor module 13 in isolating transformer 12 just
It often charges in the state of power supply, stores electric energy, in case of need.I.e. AC/DC rectification modules 11 are not only DC load
Power supply is also powered for the first super capacitor module 13 simultaneously.
In 13 charging process of the first super capacitor module, voltage and the AC/DC rectifications of the first super capacitor module 13
State when the output voltage difference of module 11 is more than 1V-2V is known as charging initial stage, the voltage of the first super capacitor module 13 with
State when the output voltage difference of AC/DC rectification modules 11 is less than 1V-2V is known as the later stage of charging.
At the initial stage of charging, AC/DC rectification modules 11 are the first super capacitor module 13 by two-way DC/DC conversion modules 15
It charges, when the voltage of the first super capacitor module 13 is less than 1V-2V with the output voltage difference of AC/DC rectification modules 11, conducting
On-off circuit 14, it is directly the 13 groups of power supplies of the first super capacitor mould that AC/DC rectification modules 11, which will pass through on-off circuit 14,.Due to every
In power grid it is normal work mostly from transformer 12, so the general phase after charging controls on-off circuit always in power grid
Conducting state is made as, to realize that the first super capacitor module 13 and AC/DC rectification modules 11 are connected directly.It should be noted that
In 13 charging process of the first super capacitor module, the conversion of each electrical part working condition is to pass through journey in energy storage control system
Sequence control is realized automatically.
When power supply trouble occurs in isolating transformer 12, since AC/DC rectification modules 11 lose electric energy, it is impossible to be born for direct current
It carries and electric energy is provided, therefore using the first super capacitor module 13 as backup power supply, the electricity stored in charging process is released
It powers for DC load.Since on-off circuit 14 is constantly in conducting state, therefore the first super capacitor module 13 can be by opening
Powered-down road 14 directly powers for DC load, when the supply voltage of the first super capacitor module 13 drops to the first preset range
When, control on-off circuit 14 disconnects, and the first super capacitor module 13 is made to be supplied by two-way DC/DC conversion modules 15 for DC load
Electricity.
It should be noted that the first preset range is determined by the rated voltage of DC load.Such as, for rated voltage
The DC load of 12V, when the voltage of the first super capacitor module 13 drops to 10V-11V, on-off circuit disconnects, two-way DC/
DC conversion modules 15 start；I.e. for the DC load of rated voltage 12V, the first preset range is 10V-11V；And for specified
Voltage is the DC load of 24V, then when the voltage of the first super capacitor module 13 drops to 20V-22V, just disconnects switch electricity
Road；I.e. for the DC load of rated voltage 24V, the first preset range is 20V-22V；I.e. DC load rated voltage not
Meanwhile first preset range it is also different.
Since two-way DC/DC conversion modules 15 can be used as booster circuit, there is boost function, therefore when the first super capacitor
After two-way DC/DC conversion modules 15, the low-voltage in the first super capacitor module 13 is increased to low-voltage in module 13
The voltage value of DC load requirement, i.e. the first super capacitor module 13 are filled remaining electric energy by two-way DC/DC conversion modules
Divide and be supplied to DC load.It should be noted that the voltage value of DC load requirement is really an electricity of DC load requirement
Press scope, generally actually should in, client can provide the voltage range values of DC load according to demand.
From above-mentioned technical proposal it can be seen that energy storage control system provided by the invention, by the first super capacitor module with opening
Tie point between powered-down road and two-way DC/DC conversion modules is connected, and under isolating transformer power supply trouble, can control switch
Circuit turn-on turns on the supply line between DC load and the first super capacitor module, and such first super capacitor module takes
For accumulator as backup power supply, powered by the supply line of conducting for DC load.And in the first super capacitor module
Voltage when dropping in the first preset range, on-off circuit can be controlled to disconnect so that DC load and the first super capacitor mould
Supply line between group disconnects；The control source of such first super capacitor module makes two-way to two-way DC/DC conversion modules
DC/DC conversion modules are amplified the voltage of input, and amplified voltage is supplied to DC load.
It is excellent since the first super capacitor module is longer than service lifetime of accumulator, the charging time is short and operating temperature range is wide etc.
Point, therefore the first super capacitor module is very suitable for backup power supply of the substitution accumulator as energy storage control system, and the first surpass
Grade electric capacity module can directly be connected by supply line with DC load, and the impedance of supply line is relatively low, so as to subtract
Lack current supply loss, improve power supply efficiency, while when the voltage of the first super capacitor module is dropped in the first preset range, the
One super capacitor module is supplied to directly after being amplified by two-way DC/DC conversion modules to the voltage of the first super capacitor module
Current load, so that voltage meets the voltage requirements of DC load, that is to say, that even if the voltage of the first super capacitor module can not
When meeting the voltage requirements of DC load, DC load can be still powered by energy storage control system provided by the invention,
So as to improve the power supply efficiency of energy storage control system.
It please refers to Fig.3, it illustrates a kind of another structural representations of energy storage control system provided in an embodiment of the present invention
Figure on the basis of Fig. 2, can also include the second super capacitor module 16, wherein：
First output terminal of the first end of the second super capacitor module 16 and the two-way DC/DC conversion modules 15 and
The tie point of the second end of the on-off circuit 14 is connected, the second end of the second super capacitor module 16 and described two-way
The second output terminal connection of DC/DC conversion modules 15, and the capacity of the second super capacitor module 16 the first surpasses less than described
The capacity of grade electric capacity module 13.
In the embodiment of the present invention, in 12 normal power supply of isolating transformer, AC/DC rectification modules 11 are for the first super electricity
It while molar group 13 charges, also charges for the second super capacitor module 16 so that the second super capacitor module 16 stores electric energy.
There is power supply trouble in isolating transformer 12 and on-off circuit 14 is held on, the first super capacitor module 13 and
Two super capacitor modules 16 discharge the electric energy of storage together, power for DC load.When the voltage of the first super capacitor module 13
When value drops to the first preset range and the disconnection moment of on-off circuit 14, converted due to starting DC/DC conversion modules 15 to DC/DC
The normal work of module 15 takes around several milliseconds, so it is DC load to continue in this time by the second super capacitor module 16
Power supply.On-off circuit 14 disconnect while, start two-way DC/DC conversion modules 15 at once, when two-way DC/DC conversion modules 15 just
Often after work, powered by the first super capacitor module 13 by two-way DC/DC conversion modules 15 for DC load.
While the first super capacitor module 13 continues as DC load power supply, the first super capacitor module 13 is second
Super capacitor module 16 charges.Wherein, the capacitance of the second super capacitor module 16 is true according to the power requirement of DC load
Fixed, in different application circuits, the capacitance of the second super capacitor module 16 is also not quite similar.
On-off circuit 14 in embodiments of the present invention can be the dc switch 14 in Fig. 2 or Fig. 3, specifically by journey
The relay of sequence control is, it is necessary to which explanation, on-off circuit 14 can be not only dc switch or other devices, such as
The switch of semiconductor devices MOSFET and four diode compositions.On-off circuit as shown in Figure 4, wherein on-off circuit include：
First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 and NPN type MOSFET pipe；Institute
The anode for stating the first diode D1 is connected with the cathode of the second diode D2；The cathode of the first diode D1 with it is described
The cathode connection of 3rd diode D3；The anode of the second diode D2 is connected with the anode of the 4th diode D4；Institute
State the tie point of the cathode of the drain electrode of NPN type MOSFET pipes and the cathode and the 3rd diode D3 of the first diode D1
Connection；The company of the source electrode of the NPN type MOSFET pipes and the anode of the anode and the 4th diode D4 of the second diode D2
Contact connects.
When NPN type MOSFET shown in Fig. 4 is managed after switch, electric current is respectively electric current as shown in Figure 5 there are two types of flow direction
Two kinds of situations that stream flows from right to left with the electric current shown in Fig. 6 from left to right.
In Figure 5, when M1 after switch, electric current flows from left to right, i.e., electric current by the first diode D1 anode flow into, by
The cathode of first diode D1 flows to the drain electrode of M1, then is flowed out by the source electrode of M1, is flowed out by the 4th diode D4.
In figure 6, when M1 after switch, electric current flows from right to left, i.e., electric current by the 3rd diode D3 anode flow into, by
The cathode of 3rd diode D3 flows to the drain electrode of M1, then is flowed out by the source electrode of M1, is flowed out by the second diode D2.
Two kinds of above-mentioned current direction modes are effectively guaranteed the normal operation of on-off circuit, when the on-off circuit of Fig. 4
In there is a diode to go wrong, still can normal power supply, only need to select adaptable current direction mode.
In the present embodiment, moment is disconnected in on-off circuit 14 using the second super capacitor module 16, is powered for DC load,
Effective to avoid on-off circuit 14 and when two-way DC/DC conversion modules 15 switch mutually, the first super capacitor module 13 is straight
The mains ripple of caused DC load when current load is directly powered realizes on-off circuit 14 and two-way DC/DC conversion
Seamless switching between module 15 ensure that the stability of voltage.
Corresponding with above system embodiment, the embodiment of the present invention also provides a kind of energy storage control method.It refer to Fig. 7,
It illustrates a kind of the first flow charts of energy storage control method provided in an embodiment of the present invention, may comprise steps of：
Step 100：In the case where isolating transformer is stopped power supply, control on-off circuit turns on so that DC load and the
Supply line's conducting between one super capacitor module.
It is understood that in order to avoid when isolating transformer is stopped power supply, AC/DC rectification modules cannot be born for direct current
Carry happening, it is necessary to the first super capacitor module be turned on the on-off circuit between DC load, such direct current is born for power supply
Supply line's conducting between the first super capacitor module is carried, the first super capacitor module can be direct current by supply line
Load supplying, to realize the first super capacitor module as the backup power supply of DC load.
Step 101：First super capacitor module releases voltage supplied, and voltage is born by the supply line of conducting for direct current
Carry power supply.
It after isolating transformer is stopped power supply, powers early period, the first super capacitor module is direct by turning on on-off circuit
Electric energy is provided for DC load, discharges the electric energy stored in charging process, wherein early period of powering is specially the first super capacitor mould
It is about 1V-2V that the rated voltage of group voltage and DC load is only poor, e.g., when the rated voltage of DC load is 12V, first
When the voltage of super capacitor module has not degraded the state of 10V-11V, for initial stage of powering；It should be noted that DC load
Rated voltage be that demand in concrete application is set.
Step 102：When the voltage of the first super capacitor module drops in the first preset range, control on-off circuit breaks
It opens so that the supply line between DC load and the first super capacitor module disconnects.
When the voltage of the first super capacitor module drops in the first preset range, the first super capacitor module
Power supply initial stage terminates, and the voltage of the first super capacitor module can not meet DC load needs at this time, then needs to disconnect switch electricity
Road uses other paths to power for DC load.
It should be noted that the first preset range is determined by the rated voltage of DC load.Such as rated voltage
The DC load of 12V, the first preset range are 10V-11V；And for the DC load of rated voltage 24V, the first preset range
It is 20V-22V.I.e. in the rated voltage difference of DC load, the also difference of the first preset range.
Step 103：In the case where supply line disconnects, the control source of the first super capacitor module release is to two-way
DC/DC conversion modules.
After on-off circuit is disconnected, i.e., phase, the first super capacitor module are by two-way DC/DC conversion modules after power up
DC load is powered.
Step 104：DC/DC conversion modules are amplified the voltage of input, and amplified voltage are supplied to described
DC load.
Since two-way DC/DC conversion modules can be booster circuit, there is boost function, therefore when the first super capacitor module
For interior low-voltage after two-way DC/DC conversion modules, the low-voltage in the first super capacitor module is increased to DC load will
Remaining electric energy is fully supplied to direct current by the voltage value asked, i.e. the first super capacitor module by two-way DC/DC conversion modules
Load.It should be noted that the voltage value of DC load requirement is really a voltage range of DC load requirement, generally exist
Actually should in, client can provide the voltage range values of DC load according to demand.
In embodiment provided by the invention, the first super capacitor module is straight by on-off circuit circuit as backup power supply
It is connected in DC load power supply.In the case where on-off circuit turns on, since conduction impedance is low, the first super capacitor module and direct current
Load is directly connected to, and reduces current supply loss, improves power supply efficiency.When the voltage of the first super capacitor module drops to first
During preset range, start two-way DC/DC conversion modules, the first super capacitor module is made by two-way DC/DC conversion modules to be straight
Current load is powered, and in this course, two-way DC/DC conversion modules are by the low-voltage rise of the first super capacitor module until full
The requirement voltage value of sufficient DC load improves the utilization rate of electric energy in the first super capacitor module, improves power supply efficiency.
Fig. 8 is refer to, it illustrates a kind of second of flow chart of energy storage control method provided in an embodiment of the present invention,
It elaborates the power supply process of the first super capacitor module and the second super capacitor module for DC load, following step can be included
Suddenly：
Step 200：During isolating transformer is stopped power supply and on-off circuit is held on, the first super capacitor module
The voltage of release is supplied to DC load.
When isolating transformer is stopped power supply, on-off circuit tends to remain on, therefore the first super capacitor module can be with
Directly emergency power supply is provided for DC load.
Step 201：Drop in the voltage of the first super capacitor module in the first preset range and control on-off circuit breaks
In open procedure, start two-way DC/DC conversion modules and the voltage of release is supplied to DC load by the second super capacitor module.
After the voltage of the first super capacitor module drops in the first preset range, it is necessary to switching switch circuit with
The working condition of two-way DC/DC conversion modules to realize that the first super capacitor module is powered as DC load, therefore needs to open
Powered-down road.While disconnecting on-off circuit, start two-way DC/DC conversion modules at once.Because starting two-way DC/DC conversion modules extremely
Normal work needs several milliseconds, so the second super capacitor module need to during this period of time power for DC load, to avoid opening
The unnecessary fluctuation of caused DC load supply voltage in powered-down road and two-way DC/DC conversion modules handoff procedure.
Step 203：After DC/DC conversion modules start, the voltage of the first super capacitor module release is amplified, and will
Amplified voltage is supplied to the DC load.
By the boosting of two-way DC/DC conversion modules, the low-voltage in the first super capacitor module is made to be increased to directly
The voltage value of current load requirement continues as DC load power supply, makes full use of the dump energy in the first super capacitor module.By
It is connected in parallel in the second super capacitor module with DC load, so being the same of DC load power supply in the first super capacitor module
When, and charge for the second super capacitor module, and then store electricity.
Fig. 9 is refer to, it illustrates a kind of the third flow chart of energy storage control method provided in an embodiment of the present invention,
It elaborates the course of work of energy storage control system in the case of isolating transformer normal power supply, may include steps of：
Step 300：In the case of isolating transformer normal power supply, the on-off circuit is controlled to disconnect so that AC/DC is whole
Supply line between flow module and the first super capacitor module disconnects.
Step 301：The AC/DC rectification modules are first super capacitor by the two-way DC/DC conversion modules
Module charges.When under isolating transformer normal power supply state, AC/DC rectification modules are directly DC load power supply, straight to ensure
Current load can work normally, while AC/DC rectification modules are filled by two-way DC/DC conversion modules for the first super capacitor module
Electricity.
Step 302：When the difference in voltage of the output voltage and the first super capacitor module of the AC/DC rectification modules
When in the second preset range, the on-off circuit is controlled to turn on so that AC/DC rectification modules and the first super capacitor module it
Between supply line conducting.
Step 303：The AC/DC rectification modules are charged by the supply line for the first super capacitor module.
In the first super capacitor module charging process, voltage and the AC/DC rectification modules of the first super capacitor module
State of output voltage difference when being more than 1V-2V be known as charging initial stage, the voltage of the first super capacitor module and AC/DC rectifications
State when the output voltage difference of module is less than 1V-2V (the second preset range) is known as the later stage of charging.At the initial stage of charging, AC/DC
Rectification module is charged by two-way DC/DC conversion modules for the first super capacitor module, when the voltage of the first super capacitor module
When being less than 1V-2V with the output voltage difference of AC/DC rectification modules, on-off circuit is turned on, AC/DC rectification modules will pass through switch electricity
Road directly powers for the first super capacitor module.Since isolating transformer is normal work mostly in power grid, so in electricity
On-off circuit is set to conducting state by the general phase after charging always in net, to realize that the first super capacitor module and AC/DC are whole
Flow module is connected directly.It should be noted that in the first super capacitor module charging process, each electric appliance in energy storage control system
The conversion of part working condition is realized automatically by programme-control.
Wherein, in embodiments of the present invention, the second super capacitor module has identical property with the first super capacitor module
Matter by storing electricity in charging process, releases power supply volume in discharge process, to provide power supply for DC load.Wherein,
Second super capacitor can be charged by following two modes：First, in the case of isolating transformer normal power supply, AC/DC
Rectification module is powered in the case where powering for DC load, while for the first super capacitor module, is also the second super capacitor
Module is powered, energy storage electric energy.
Second, stopping power supply in isolating transformer and in the case where the supply line disconnects, the first super capacitor mould
Low-voltage in group changes module by two-way DC/DC and rises to as high voltage, powers for DC load.Due to the second super capacitor
Module is connected in DC load, so being second super again while the first super capacitor module provides power supply for DC load
Electric capacity module is powered, and improves the utilization rate of electric energy in the first super capacitor module.
In embodiments of the present invention, for the ease of clearly understanding in charging initial stage, later stage of charging, power supply early period and power supply
During later stage state, simple introduction is carried out to the working condition of on-off circuit and two-way DC/DC conversion modules, has referred to table 1.
1 energy storage of table controls process
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include that
A little elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except also there are other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to realize or use the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
The embodiments shown herein is formed on, and is to fit to consistent with the principles and novel features disclosed herein most wide
Scope.
Claims (4)
1. a kind of energy storage control method, applied in energy storage control system, which is characterized in that the energy storage control system includes：
AC/DC rectification modules and isolating transformer, the isolating transformer are connected with the AC/DC rectification modules, the AC/DC
The first output terminal and second output terminal of rectification module are power output end；
First super capacitor module, on-off circuit and two-way DC/DC conversion modules；
Wherein, the first end of the on-off circuit is connected with the first input end of the two-way DC/DC conversion modules, the switch
The second end of circuit is connected with the first output terminal of the two-way DC/DC conversion modules, and the first end of the on-off circuit with
The tie point of the first input end of the two-way DC/DC conversion modules is connected with the first end of the first super capacitor module,
The tie point and the AC/DC of first output terminal of the second end of the on-off circuit and the two-way DC/DC conversion modules are whole
First output terminal of flow module is connected；
The second end of the first super capacitor module is connected with the second input terminal of the two-way DC/DC conversion modules, and institute
The second output terminal for stating two-way DC/DC conversion modules is connected with the second output terminal of the AC/DC rectification modules；
The described method includes：
In the case where isolating transformer is stopped power supply, control on-off circuit conducting is so that DC load and the first super capacitor mould
Supply line's conducting between group；
First super capacitor module provides voltage, and voltage is powered by the supply line of conducting for DC load；
When the voltage of the first super capacitor module drops in the first preset range, the on-off circuit is controlled to disconnect with
Disconnect the supply line between DC load and the first super capacitor module；
In the case where the supply line disconnects, the control source of the first super capacitor module to two-way DC/DC converts
Module；
The two-way DC/DC conversion modules are amplified the voltage of input, and amplified voltage is supplied to the direct current
Load；
In the case of isolating transformer normal power supply, the on-off circuit is controlled to disconnect so that AC/DC rectification modules and first
Supply line between super capacitor module disconnects；
The AC/DC rectification modules are charged by the two-way DC/DC conversion modules for the first super capacitor module；
When the output voltage of the AC/DC rectification modules and the difference in voltage of the first super capacitor module are in the second default model
When enclosing interior, the on-off circuit is controlled to turn on the supply line so that between AC/DC rectification modules and the first super capacitor module
Conducting；
The AC/DC rectification modules are charged by the supply line for the first super capacitor module.
2. according to the method described in claim 1, it is characterized in that, the energy storage control system further includes：Second super capacitor
Module；It first output terminal of the first end of the second super capacitor module and the two-way DC/DC conversion modules and described opens
The tie point of the second end on powered-down road is connected, and the second end of the second super capacitor module and the two-way DC/DC become mold changing
The second output terminal connection of block, and the capacity of the second super capacitor module is less than the appearance of the first super capacitor module
Amount；
The method further includes：
In isolating transformer is stopped power supply and controls on-off circuit disconnection process, the second super capacitor module will continue release electricity
Pressure, is supplied to DC load；
After the on-off circuit is controlled to disconnect, by the first super capacitor module by two-way DC/DC conversion modules release voltage,
It powers for DC load.
3. according to the method described in claim 2, it is characterized in that, the method further includes：
Drop in the voltage of the first super capacitor module in preset range and in the control on-off circuit disconnection process,
The voltage of release is supplied to DC load by the second super capacitor module；
In the case where control states on-off circuit disconnection so that supply line disconnects, by the voltage of the first super capacitor module
It inputs to two-way DC/DC conversion modules.
4. according to the method described in claim 2, it is characterized in that, the method further includes：
In the case of isolating transformer normal power supply, the AC/DC rectification modules charge for the second super capacitor module；
It stops power supply in isolating transformer and in the case where the supply line disconnects, the electricity of the first super capacitor module
Pressure is inputted to two-way DC/DC conversion modules；The two-way DC/DC conversion modules are amplified the voltage of input, and will amplification
Voltage afterwards is supplied to the DC load, while charges for the second super capacitor module.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107843807B (en) * | 2016-09-20 | 2021-07-30 | 丰郅(上海)新能源科技有限公司 | Monitoring system capable of timely turning off power grid at voltage drop moment |
| US10734903B2 (en) * | 2017-04-25 | 2020-08-04 | Toshiba Mitsubishi-Electric Industrial Systems Corporation | Power supply apparatus |
| CN107910931A (en) * | 2017-12-15 | 2018-04-13 | 深圳新恒业电气有限公司 | A kind of control method of single group and multigroup energy storage converting means |
| CN107993540A (en) * | 2018-01-15 | 2018-05-04 | 国网北京市电力公司 | A kind of microcomputer protective relay teaching experiment system |
| CN108321917A (en) * | 2018-05-09 | 2018-07-24 | 江苏爱可青实业有限公司 | A kind of device improving super capacitor module discharge energy-storage utilization rate |
| CN110768362A (en) * | 2018-07-25 | 2020-02-07 | 南京市嘉隆电气科技有限公司 | Backup power supply control system based on super capacitor |
| CN112583102A (en) * | 2019-09-27 | 2021-03-30 | 恒为科技（上海）股份有限公司 | Uninterruptible power supply and charge-discharge control method |
| CN110932572B (en) * | 2019-11-08 | 2023-04-07 | 国网冀北电力有限公司张家口供电公司 | Direct current power supply circuit and system |
| CN110707735A (en) * | 2019-11-21 | 2020-01-17 | 广州供电局有限公司 | Super capacitor power module and feeder terminal |
| CN112039313B (en) * | 2020-07-28 | 2022-02-18 | 漳州科华技术有限责任公司 | Auxiliary power supply device, control method of auxiliary power supply device, and converter |
| CN112532117A (en) * | 2020-12-22 | 2021-03-19 | 深圳市越疆科技有限公司 | Motor driving circuit, device and method, mechanical arm and robot |
| CN115912932B (en) * | 2022-11-22 | 2024-08-16 | 合肥钧联汽车电子有限公司 | Reverse pre-charging soft start control method for vehicle-mounted bidirectional DC-DC converter |
| CN121171794A (en) * | 2025-11-20 | 2025-12-19 | 广东电网有限责任公司云浮供电局 | Hybrid super capacitor module for power system and management method |
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