CN108448708A - A kind of control device and method of solar charging device, solar recharging - Google Patents
A kind of control device and method of solar charging device, solar recharging Download PDFInfo
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- CN108448708A CN108448708A CN201810470278.3A CN201810470278A CN108448708A CN 108448708 A CN108448708 A CN 108448708A CN 201810470278 A CN201810470278 A CN 201810470278A CN 108448708 A CN108448708 A CN 108448708A
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- 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
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- 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
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses the control device and methods of a kind of solar charging device, solar recharging, wherein the control device includes DC converting module (1), control module (2) and drive module (3)；Control module (2), it is connect with DC converting module (1), input voltage, output voltage and output current for acquiring DC converting module (1), and output current is adjusted based on input voltage and output voltage, it is adjusted as a result, and being sent to drive module (3)；Drive module (3), it is connect respectively with control module (2) and DC converting module (1), DC converting module (1) is controlled for being based on adjusting result so that solar energy output power is the maximum power output under current working environment and output voltage maintains setting range.The present invention is capable of the stabilization of Collaborative Control maximal power tracing and load end input voltage.
Description
Technical field
The invention belongs to clean energy technology fields, and in particular to a kind of control of solar charging device, solar recharging
The control method of device and solar recharging processed.
Background technology
In recent years, the shared concept of the mobile energy, the energy has been rooted in the hearts of the people, and the mobile energy is new general of a comparison
It reads, the easily broken property of the inflexibility of conventional crystalline silicon component, battery chip is a fast-developing restriction of the mobile energy
Factor, flexible thin-film solar generate electricity natural flexible determine filming by be the mobile energy mainstream development direction.
The current mobile energy visible on the market includes mainly the products such as solar power generation paper, solar energy backpack, by solar power generation
The rated power of the limitation of photoelectric conversion efficiency and corresponding product size, the above-mentioned solar power generation movement energy is usually no more than
40W considers that the type product does not increase energy storage device generally, using letter from adaptable angle cost-effective, under hot environment
Single BUCK, BOOST or BUCK-BOOST circuit realizes that output voltage is adjusted, and is controlled using simple stick (Bang-Bang)
Principle changes (and output voltage of interface) adjustment output duty cycle according to load voltage and then adjusts output current and power,
The solar power generation mobile power of the type can not be realized most on the framework of level-one BUCK, BOOST or BUCK-BOOST circuits
The Collaborative Control of high-power tracking and output voltage stabilization.
Invention content
(1) goal of the invention
The object of the present invention is to provide a kind of on the framework of level-one DC transfer circuit realizes maximal power tracing and defeated
Go out the control device and control method of the solar charging device, solar recharging that are controlled while voltage stabilization.
(2) technical solution
To solve the above problems, the first aspect of the present invention provides a kind of control device of solar recharging, feature
It is, including DC converting module, control module and drive module；Control module is connect with DC converting module, for acquiring
Input voltage, output voltage and the output current of DC converting module, and based on input voltage and output voltage to output current
It is adjusted, it is adjusted as a result, and being sent to drive module；Drive module, respectively with control module and DC converting module
Connection controls DC converting module for being based on adjusting result so that solar energy output power is current working environment
Under maximum power output and output voltage maintain setting range.
Further, control module includes：Voltage compensation module, for the upper limit value based on output voltage and setting range into
Row is adjusted, or the lower limiting value based on output voltage and setting range is adjusted, and obtains the first current adjustment；Maximum power
Adjustment module is adjusted for being based on input voltage and input voltage desired value, obtains the second current adjustment；Current regulation
Module is connect with voltage compensation module and maximum power adjustment module respectively, for based on the first current adjustment and the second electricity
Output current is adjusted in stream regulated quantity, adjusted result.
Further, voltage compensation module is additionally operable to compare the upper limit value of output voltage and setting range, when output voltage is super
When crossing the upper limit value of setting range, based on beyond difference reduce the first current adjustment；Maximum power adjustment module, is additionally operable to
When output voltage is more than the upper limit value of setting range, current input voltage is assigned to input voltage desired value, and export
Second current adjustment is steady state value.
Further, voltage compensation module is additionally operable to compare the lower limiting value of output voltage and setting range, when output voltage is low
When the lower limiting value of setting range, based on it is low go out difference increase the first current adjustment；Maximum power adjustment module, is additionally operable to
When output voltage is less than the lower limiting value of setting range, current input voltage is assigned to input voltage desired value, and export
Second current adjustment is steady state value.
Further, voltage compensation module is additionally operable to judge output voltage whether in setting range, when output voltage is being set
When determining in range, the first current adjustment of output is 0 or saturation value；Maximum power adjustment module is additionally operable to work as output voltage
In setting range and when the first current adjustment is saturation value, reduce the second current adjustment, and when output voltage is being set
Determine in range and when the first current adjustment is 0, the second current adjustment adjusted based on input voltage and input voltage desired value,
So that the second current adjustment can reach maximum power output after output current is adjusted.
Further, maximum power adjustment module is additionally operable to when output voltage is more than the upper limit value of setting range, and record is first
Secondary input voltage or input voltage desired value, with when output voltage is recalled to setting range, the input voltage based on record
Or solar energy output power is adjusted to maximum power by input voltage desired value and maximal power tracing algorithm.
Further, maximum power adjustment module is additionally operable to calculate solar energy input power or solar energy output power, and
Input voltage desired value is calculated based on solar energy input power or solar energy output power and maximal power tracing algorithm.
Further, control module includes：Voltage compensation module is additionally operable to be higher than the upper limit value of setting range in output voltage
Or less than setting range lower limiting value when, translate the sagging curve of setting, by the sagging curve after translation with setting range
The corresponding current value of upper limit value as the first current adjustment；Maximum power adjustment module, for based on input voltage and defeated
Enter voltage-target to be adjusted, obtains the second current adjustment；Current regulating module, respectively with voltage compensation module and maximum
Power conditioning module connects, and is adjusted, obtains to output current for being based on the first current adjustment and the second current adjustment
To adjusting result.
Further, control module includes voltage compensation module, maximum power adjustment module and current regulating module；Voltage is mended
Module is repaid, is connect with drive module, in upper limit value of the output voltage higher than setting range or less than under setting range
When limit value, the sagging curve of setting is translated, the first duty ratio corresponding with output voltage on the sagging curve after translation is exported
To drive module；Maximum power adjustment module is adjusted for being based on input voltage and input voltage desired value, obtains second
Current adjustment；Current regulating module is connect with maximum power adjustment module and DC converting module, for being based on the second electric current
Output current is adjusted in regulated quantity, obtains the second duty ratio, and export to drive module；Drive module is additionally operable to
The sum of one duty ratio and the second duty ratio are as adjusting result.
According to another aspect of the present invention, a kind of solar charging device, including a kind of control of solar recharging are provided
Device processed further includes：Solar power generation component is connected to the input terminal of DC converting module.
Further, solar power generation component is additionally coupled to drive module, powers for drive module.
According to a further aspect of the invention, a kind of control method of solar recharging is provided, including：Acquire DC converting
Input voltage, output voltage and the output current of module；Output current is adjusted based on input voltage and output voltage, is obtained
To adjusting result；DC converting module is controlled based on result is adjusted so that solar energy output power is current working ring
Maximum power output and output voltage under border maintain setting range.
Further, output current is adjusted based on input voltage and output voltage, including：Based on output voltage and set
The upper limit value for determining range is adjusted, or the lower limiting value based on output voltage and setting range is adjusted, and obtains the first electricity
Flow regulated quantity；It is adjusted based on input voltage and input voltage desired value, obtains the second current adjustment；Based on the first electric current
Output current is adjusted in regulated quantity and the second current adjustment, adjusted result.
Further, the upper limit value based on output voltage and setting range is adjusted, including：Compare output voltage and setting
The upper limit value of range；When output voltage be more than setting range upper limit value when, based on beyond difference reduce the first current regulation
Amount；Wherein, it is adjusted based on input voltage and input voltage desired value, including：It is more than the upper of setting range in output voltage
When limit value, current input voltage is assigned to input voltage desired value, and it is steady state value to export the second current adjustment.
Further, the upper limit value based on output voltage and setting range is adjusted, including：Compare output voltage and setting
The lower limiting value of range；When output voltage be less than setting range lower limiting value when, based on it is low go out difference increase the first current regulation
Amount；Wherein, it is adjusted based on input voltage and input voltage desired value, including：When output voltage is less than under setting range
When limit value, current input voltage is assigned to input voltage desired value, and it is steady state value to export the second current adjustment.
Further, the upper limit value based on output voltage and setting range is adjusted, including：Judge output voltage whether
In setting range, when output voltage is in setting range, the first current adjustment of output is 0 or saturation value；Wherein, it is based on
Input voltage and input voltage desired value are adjusted, including：When output voltage is in setting range and the first current adjustment
For saturation value when, reduce the second current adjustment, and when output voltage in setting range and the first current adjustment be 0
When, the second current adjustment is adjusted based on input voltage and input voltage desired value so that the second current adjustment is to output electricity
Stream can reach maximum power output after being adjusted.
Further, further include：When output voltage is more than the upper limit value of setting range, input voltage or defeated for the first time is recorded
Enter voltage-target, with when output voltage is recalled to setting range, the input voltage based on record or input voltage desired value
Solar energy output power is adjusted to maximum power with maximal power tracing algorithm.
Further, input voltage desired value is calculated based on following methods：Calculate solar energy input power or solar energy
Output power；Input voltage is calculated based on solar energy input power or solar energy output power and maximal power tracing algorithm
Desired value.
Further, output current is adjusted based on input voltage and output voltage, including：It is higher than in output voltage and sets
Determine range upper limit value or less than setting range lower limiting value when, the sagging curve of setting is translated, by the lower whip after translation
Current value corresponding with the upper limit value of setting range is as the first current adjustment on line；Based on input voltage and input voltage mesh
Scale value is adjusted, and obtains the second current adjustment；Based on the first current adjustment and the second current adjustment to output current
It is adjusted, adjusted result.
Further, output current is adjusted based on input voltage and output voltage, including：It is higher than in output voltage and sets
Determine range upper limit value or less than setting range lower limiting value when, the sagging curve of setting is translated, by the lower whip after translation
The first duty ratio output corresponding with output voltage on line；It is adjusted, is obtained based on input voltage and input voltage desired value
Second current adjustment；Output current is adjusted based on the second current adjustment, obtains the second duty ratio；By the first duty
Than adjusting result with the conduct of the sum of the second duty ratio.
(3) advantageous effect
The above-mentioned technical proposal of the present invention has following beneficial technique effect：The present invention is by the way that control module to be connected to
DC converting module 1, and voltage compensation link and maximal power tracing (MPPT) are introduced in control module 2, and by adopting
Collect input voltage, output voltage and the output current of DC converting module 1, and based on input voltage and output voltage to output electricity
Stream is adjusted, and will adjust result and acts on DC converting module 1, controls the switching tube inside DC converting module 1,
Wherein, input voltage is adjusted for maximal power tracing, and output voltage is used for the adjusting of output voltage stabilization, by the two and currently
Output current couple and after the adjustment, can realize the Collaborative Control of maximum power output and output voltage stabilization.
Description of the drawings
Fig. 1 is the schematic diagram of maximal power tracing in the prior art；
Fig. 2 is the structural schematic diagram of the control device of the solar recharging of one embodiment of the invention；
Fig. 3 is the structural schematic diagram of the control device of the solar recharging of another embodiment of the present invention；
Fig. 4 is principle schematic of the further embodiment of this invention about voltage-to-current sagging curve control method；
Fig. 5 is that further embodiment of this invention is shown using the control device structure of voltage-duty ratio sagging curve control method
It is intended to；
Fig. 6 is that a kind of structure of the control device of solar recharging based on BUCK circuits of further embodiment of this invention is shown
It is intended to；
Fig. 7 is that further embodiment of this invention is applied about voltage-to-current sagging curve control method including BUCK circuits
Solar recharging control device structural schematic diagram；
Fig. 8 is that further embodiment of this invention is applied about voltage-duty ratio sagging curve control method including BUCK electricity
The structural schematic diagram of the control device of the solar recharging on road；
Fig. 9 is the flow diagram of the control method of the solar recharging of one embodiment of the invention；
Figure 10 is the flow diagram of the control method of the solar recharging of another embodiment of the present invention；
Figure 11 is the flow diagram of the control method of the solar recharging of further embodiment of this invention；
Figure 12 is the flow diagram of the control method of the solar recharging of further embodiment of this invention；
Figure 13 is the flow diagram of the control method of the solar recharging of further embodiment of this invention；
Figure 14 is the flow diagram of the control method of the solar recharging of further embodiment of this invention；
Figure 15 is the flow diagram of the control method of the solar recharging of further embodiment of this invention.
Reference numeral：
1：DC converting module；11：Solar energy bus capacitor；12：Power switch tube；13：Fly-wheel diode；14：Inductance；
15：Export bus capacitor；2：Control module；21：Voltage compensation module；210：First adder；211：First adjuster；22：
Maximum power adjustment module；220：Second adder；221：Second adjuster；23：Current regulating module；230：Third addition
Device；231：Third adjuster；3：Drive module；4：Solar power generation component；5：Current sample element.
Specific implementation mode：
In order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment and join
According to attached drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright range.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid this is unnecessarily obscured
The concept of invention.
Technical term：
Duty ratio：Refer in a pulse cycle, conduction time is relative to the ratio shared by total time.Assuming that pulse is wide
Degree is 1 μ s, and the period of pulse train is 4 μ s, then duty ratio is 1/4=0.25.
Maximal power tracing point：The peak power output of solar panel also changes at any time with the variation of illumination, if defeated
It is excessive to go out electric current, voltage can decline rapidly (close to zero), and power is also close to zero at this time, therefore to control output current, makes voltage
It is maintained at ideal value, power is maximum at this time, referred to as maximum power.At maximum power point, if output voltage is too big, electric current
It is reduced rapidly, output power reduces, whereas if output voltage reduces, although it is the two that electric current, which has rising slightly, power,
Product, the power after multiplication still reduces, it can be seen that, only output voltage is in maximum power point pair from the curve of Fig. 1
When the voltage answered, i.e. output power is maximum after the two is multiplied.
The principle of MPPT maximum power point tracking：Solar power generation component is connect with load by DC/DC circuits, maximum power with
Track is to be changed by constantly detecting the Current Voltage of solar power generation component, and change the PWM to DC/DC converters according to it
Drive signal duty cycle is adjusted.For linear circuit, when load resistance is equal to the internal resistance of power supply, power supply has most
High-power output.Although solar power generation component and DC/DC conversion circuits are all strong nonlinearities, in the extremely short time
It is interior, it is believed that be linear circuit.Therefore, it is made to be consistently equal to solar energy as long as adjusting the equivalent resistance of DC-DC conversion circuits
The internal resistance of electrification component, so that it may to realize the maximum output of solar power generation component, also be achieved that solar power generation component
Maximal power tracing.
Fig. 1 is the schematic diagram of maximal power tracing point in the prior art.
The voltage-current curve of solar power generation component is in non-linear, and power is the two product, therefore, power vs. voltage
Or power-current curve not instead of monotonous curve, in some voltage or some electric current, there are maximum power values, therefore such as
Fruit solar power generation component always work in this maximum power point or its near, more energy can be exported, brought higher
System effectiveness.But since maximum power point is not changeless, and as the variation of radiation intensity and environment temperature is moved.And
Solar power generation component itself and do not have function from motion tracking maximum power point, it is therefore desirable to use certain control circuit
It is tracked with control algolithm.
As shown in Figure 1, assuming initially that the operating voltage of solar power generation component is controllable to gradually increase, it can be seen that
Initially, solar power generation component operation is on PM points, and due to the increase of operating voltage, subsequent time operating point has moved to PM+1,
There is PM at this time<PM+1, operating voltage continue growing so that operating point is climb along power curve is raised to maximum power point PM0
Place, proceeds with one's work and a little continues to move right, and Pn occur>Pn+1 can pass through the variation of change operating voltage in this punching
Direction then may be implemented to make operating point from another direction from climbing to summit even if operating voltage is gradually reduced, so anti-
The change of solar power generation component operation point voltage is controlled again, it will be able to realize the final steady operation in operating point in maximum power point
Near.
By the prior art, inventor has found following problem：Generally in the case of no energy storage, level-one BUCK circuits meet
Solar charging device, can all give tacit consent to load can require load to have electricity according to interface voltage dynamic Load adjustment power
Source control chip, and the output power of mobile power will be limited by power management chip sensitivity and easily be fluctuated；In addition, such as
Fruit only pursues maximal power tracing, does not control output voltage, may result in that output voltage wave is big, and the fluctuation of larger output voltage is matched
The power management chip of load is closed to transmit input side energy so that power quality is poor；Furthermore if it is steady only to pursue output voltage
It is fixed, then in no maximum power output (MPPT) function, it can cause to be less than the receivable power of load even if solar energy output power
When solar power generation be still unable to steady operation at maximum power point, therefore, for Collaborative Control output voltage stabilization and maximum
Power output, the present invention are solved by the technical solution of following embodiment：
It should be noted that the solar energy input power that following present invention embodiment is introduced each means solar power generation group
The input power of part, solar energy output power refer to the output power of solar power generation component.Solar power generation component and solar energy
The control device of charging connects, with by the control device to solar energy output power and to the input voltage of load end into
Row control.
Fig. 2 is a kind of structural schematic diagram of the control device of solar recharging of the embodiment of the present invention one.
As shown in Fig. 2, a kind of control device of solar recharging, including DC converting module 1, control module 2 and driving
Module 3, control module 2 are connect with DC converting module 1, and drive module 3 connects with control module 2 and DC converting module 1 respectively
It connects, DC converting module 1 is connected to the input terminal of solar power generation component 4.Control module 2 acquires the defeated of DC converting module 1
Enter voltage, output voltage and output current, and output current is adjusted based on input voltage and output voltage, it is adjusted
As a result, and be sent to drive module 3, DC converting module 1 is controlled by drive module, so that solar energy output work
Rate is the maximum power output under current working environment and output voltage maintains setting range.Specifically based on input electricity
Pressure obtains current adjustment corresponding with input voltage, and obtains current regulation corresponding with output voltage based on output voltage
Amount, and then output current is adjusted based on two current adjustments, adjusted result drive module 3 is based on adjusting result
Corresponding duty ratio is formed, which acts on the switching tube inside DC converting module 1 so that switching tube is according to the duty
Than the adjustment for carrying out conduction time.The setting range of output voltage can be the normal range (NR) namely load end of output voltage
Normal working voltage range, such as：The setting range of output voltage is the rated operational voltage 3-5V of load.Wherein, mould is driven
Block 3 is PWM type of drive, i.e., after the adjusting result that control module 2 exports is to drive module, drive module can be according to the adjusting knot
Fruit exports corresponding duty ratio, is specifically exported in the form of pwm signal to DC converting module 1.Wherein, solar power generation group
Part 4 is to refer to receive luminous energy, and be converted to the component of electric energy, can be by crystal silicon solar batteries, thin film solar electricity
The solar cell module that pond, optically focused or organic solar batteries are formed.
Wherein, DC converting module 1 is level-one energy conversion DC-DC circuit, and level-one energy conversion DC-DC circuit refers to packet
Isolation containing BUCK, BOOST, BUCK-BOOST and half-bridge, full-bridge or other topological structures etc. or non-isolated circuit, due to this
The characteristics of class circuit is to control output power then and can not take into account output voltage or control output voltage then take into account output
Power.Therefore, invention increases control module, by input voltage to DC converting module 1 and output voltage and defeated
Go out electric current to be acquired, and be adjusted using the voltage/current signals of these three acquisitions, to realize to solar energy output work
Rate and output voltage carry out Collaborative Control.When acquiring these three signals, particular by signal wire by 1 He of direct current input module
Control module 2 connects, such as：Current sample element is connected to DC converting module 1 for acquiring output current.
Wherein, the input voltage of DC converting module 1 can also be the output voltage of solar power generation component 4.The present invention
The control device of embodiment is to be connected to solar power generation component 4, and the input terminal of specifically DC converting module 1 is connected to the sun
It can electrification component 4.
Fig. 3 is a kind of structural schematic diagram of the control device of solar recharging of the embodiment of the present invention two.
As shown in figure 3, control module 2 includes voltage compensation module 21, maximum power adjustment module 22 and current regulation mould
Block 23；Voltage compensation module 21 and maximum power adjustment module 22 are connect with current regulating module 23 respectively, and voltage compensation mould
Block and maximum power adjustment module 22 connect.
Voltage compensation module 21 is adjusted for the upper limit value based on output voltage and setting range, or based on defeated
The lower limiting value for going out voltage and setting range is adjusted, and obtains the first current adjustment；Wherein, voltage compensation module 21 can adopt
With voltage compensation ring；
Maximum power adjustment module 22 is adjusted for being based on input voltage and input voltage desired value, obtains second
Current adjustment；Wherein, outer voltage may be used in maximum power adjustment module 22；Input voltage desired value is to be based on solar energy
Input voltage desired value is calculated in input power or solar energy output power and maximal power tracing algorithm.Solar energy input work
Rate can be calculated by maximum power adjustment module 22 based on following methods：Output voltage based on DC converting module 1 and
Output current is calculated；Or output voltage based on solar power generation component 4 and output current are calculated.
Current regulating module 23 is connect respectively with maximum power adjustment module 21 and voltage compensation module 22, for being based on
Output current is adjusted in first current adjustment and the second current adjustment, adjusted as a result, being specifically by the first electricity
The given value that stream regulated quantity and the second current adjustment are adjusted as PI carries out PI adjustings, obtains using output current as value of feedback
To adjusting result.Wherein, current inner loop may be used in current regulating module 23.
In one embodiment, voltage compensation module 21 is to compare the upper limit value of output voltage and setting range, is judged
Its whether be more than setting range upper limit value, if output voltage be more than setting range upper limit value, based on beyond difference it is (defeated
Go out the difference between voltage and the upper limit value of setting range) reduce the first current adjustment as current output.Such as：If output
The setting range of voltage is 3-5V, then the upper limit value of the setting range of output voltage is 5V, and output voltage at this time is if 6V,
Then be judged as that output voltage is more than upper limit value, need by the adjusting of voltage compensation module 21 by output voltage recall to 3-5V it
Between.Maximum power adjustment module 22 is additionally operable to determine output voltage more than output voltage setting model in voltage compensation module 21
When the upper limit value enclosed, current input voltage is assigned to input voltage desired value, and it is constant to export the second current adjustment
Value, steady state value are historical integral time value of second current adjustment in time-domain.The first current adjustment after reduction and constant
Value is used as given value, and as value of feedback, the common input current adjustment module of three 23 is adjusted current output current, will be defeated
Go out voltage and recalls to setting range so that output voltage stabilization, and ensure maximum power output simultaneously.Due to output voltage at this time
Through the upper limit value more than setting range, then output voltage can be caused unstable, it is therefore desirable to which output voltage is recalled to setting range
It is interior, reduce particular by by the first current adjustment, i.e., the difference of the upper limit value to be overruned based on output voltage is adjusted
Section obtains a negative value, this negative value is coupled with steady state value and current output current, and carries out error tune by adjuster
Section, adjusted result so that solar components realize maximal power tracing and output voltage maintains setting range.
When voltage compensation module 21 determines output voltage and is more than the upper limit value of output voltage setting range, maximum power
Input voltage is assigned to input voltage desired value by tracking module 22, and is adjusted maximal power tracing module 22 and exported the first electric current
Regulated quantity is the historical integral time value in time-domain at it, the purpose is to：Since the adjusting of voltage compensation module 21 needs a timing
Between, it is assumed that triggering maximal power tracing module 22 again after the completion of voltage compensation module 21 is adjusted, then it can lead to maximum work
Rate tracking module 22 continues maximal power tracing in this section of regulating time, and output voltage continues to increase, and causes voltage not
Surely, it is steady state value by the output of the first current adjustment, is as it is assumed that it is 0 to export the first current adjustment at this time, then it represents that
Maximal power tracing exits at this time, and output voltage will appear rapid drawdown, and circuit is caused to damage；(3) the first current adjustment is exported
For steady state value, additionally it is possible to after output voltage is adjusted in setting range, quickly be adjusted to maximal power tracing point, be protected
Maximum power output is demonstrate,proved, to realize the Collaborative Control of output voltage and maximal power tracing adjusting.
In another embodiment, whether voltage compensation module 21 is additionally operable to judge output voltage less than setting range
Lower limiting value needs to recall to output voltage to setting range when output voltage is less than lower limiting value, is specifically based on output electricity
The difference of the lower limiting value of pressure and setting range is adjusted, and the first current adjustment is increased, meanwhile, maximum power adjustment module
Current input voltage is assigned to input voltage desired value by 22, and it is steady state value to export the second current adjustment, after increase
Output voltage and steady state value are as given value, and the output current that currently acquires is as value of feedback, input current adjustment module, to
Maintain output voltage in setting range.
In addition, when output voltage is more than setting range upper limit value, maximum power adjustment module 22 is additionally operable to record for the first time
Input voltage or input voltage desired value, and when output voltage is recalled to setting range, the input electricity based on record
Solar energy output power is adjusted to maximum power point (mpp) by pressure or input voltage desired value and maximal power tracing algorithm.Due to
When output voltage is more than the upper limit value of setting range, input voltage or input voltage desired value for the first time represent maximum power
The corresponding voltage value of output point, therefore when output voltage is recalled to setting range, maximum power point need not be found again, passed through
The voltage value of directly given maximum power point, can be adjusted to maximum power point (mpp) by solar energy output power rapidly, to
Ensure that circuit is always with maximum power output while output voltage stabilization.
In yet another embodiment, voltage compensation module 21 be additionally operable to judge output voltage whether output voltage setting
In range, when output voltage is in the setting range of output voltage, then it represents that output voltage stabilization at this time need not be adjusted
Section, at this point, the first current adjustment can export for 0 or be voltage compensation module 21 saturation value, when the first current regulation
When amount is 0, then it is equivalent to voltage compensation module 21 and is removed from controller 2, do not played regulatory role, at this point, only by maximum work
Rate tracking module 22 is adjusted, and ensures circuit always with maximum power output.When the first current adjustment is saturation value, most
High-power tracking module 22 is then needed based on the second current adjustment of reduction, wherein the first current adjustment (saturation after reduction
Value), the second current adjustment after reduction needs to balance out above-mentioned saturation value, and the result after counteracting is to output current
After being adjusted, remain able to ensure maximum power output by output voltage stabilization.Wherein, saturation value refers to the amplitude limit of adjuster
Value, i.e. maximum output.
Voltage-to-current sagging curve controlling unit can also be used to substitute voltage compensation ring in the embodiment of the present invention.Its electricity
Line structure is identical as Fig. 3, specifically, as shown in figure 3, control module 2 includes voltage compensation module 21, maximum power adjustment module
22 and current regulating module 23, wherein voltage compensation module 21 be used in upper limit value of the output voltage higher than setting range or
Less than setting range lower limiting value when, translate the sagging curve of setting, will be upper with setting range on the sagging curve after translation
The corresponding current value of limit value is as the first current adjustment；Maximum power adjustment module 22, for being based on input voltage and input
Voltage-target is adjusted, and obtains the second current adjustment；Current regulating module 23, respectively with voltage compensation module 21 and most
High-power adjustment module 22 connects, and is adjusted to output current for being based on the first current adjustment and the second current adjustment
Section, adjusted result.
Below with output voltage be less than lower limiting value when sagging curve control method principle as shown in figure 4, in figure A points and
Straight line where B points is the sagging curve of setting, and A points represent the desired value for being operated in output voltage, referred to as operating point, work
After a period of time, operating point changes, and is moved to B points, at this time can by translate droop characteristic, after translation under
An operating point C is found on catenary again, operating point C is identical as the operating voltage of operating point A, by the corresponding electric currents of operating point C
Value is used as the first current adjustment.
Voltage-duty ratio sagging curve controlling unit can also be used to substitute voltage compensation ring 21 in the embodiment of the present invention.
The circuit structure (Fig. 3) of three kinds of embodiments of its circuit structure and front is slightly different.Specifically, as shown in figure 5, control module
2 include voltage compensation module 21, maximum power adjustment module 22 and current regulating module 23, wherein voltage compensation module 21, with
Drive module 3 connects, for in upper limit value of the output voltage higher than setting range or less than the lower limiting value of setting range
When, the sagging curve of setting is translated, the first duty ratio corresponding with output voltage on the sagging curve after translation is exported to drive
Dynamic model block 3；Maximum power adjustment module 22 is adjusted for being based on input voltage and input voltage desired value, obtains second
Current adjustment；Current regulating module 23 is connect with maximum power adjustment module 22 and DC converting module 1, for based on the
Output current is adjusted in two current adjustments, obtains the second duty ratio, and export to drive module 3, drive module 3 is based on
The sum of first duty ratio and the second duty ratio obtain total duty ratio.
The embodiment is identical as sagging curve control method basic principle, and same section can refer to Jie of an embodiment
It continues, unlike, it is that C corresponding duty ratios in operating point are directly output to drive module 3 after searching out operating point C.
Further, the present invention also provides a kind of solar charging devices, including any one of aforementioned embodiment introduction is too
The control device that can charge of sun further includes：Solar power generation component 4 is connected to the input terminal of DC converting module 1.Preferably,
Solar power generation component 4 is additionally coupled to drive module 3, powers for drive module 3.Drive module 3 connects with solar power generation component 4
It connects, can directly be powered for drive module 3 by solar power generation component 4, it is not necessary to which other power supplies reduce driving
Number of power sources can improve system effectiveness.
Below by taking classical BUCK circuits as an example, the control device of the solar recharging of the embodiment of the present invention is said
It is bright：
As shown in fig. 6,1 structure of DC converting module can be found in the structure of the BUCK circuits of the prior art, including：Solar energy
Bus capacitor 11, power switch tube 12, fly-wheel diode 13, inductance 14, current sample element 5 and output bus capacitor 15.
Solar energy bus capacitor 11 is connected to maximal power tracing module 22 by signal wire, and 5 one end of current sample element is connected to electricity
Sense, the other end are connected to current regulating module 23, and output bus capacitor 15 is connected to voltage compensation module 21 by signal wire, directly
The input terminal of stream conversion module 1 is connected to solar power generation component 4.
Voltage compensation module 21 includes the first adder 210 and the first adjuster 211 interconnected, maximal power tracing
Module 22 includes the second adder 220 and the second adjuster 221 interconnected, and current regulating module 23 includes interconnecting
Third adder 230 and third adjuster 231；
When the output current value that the electric current consecutive hours on inductance 14, current sample element 5 sample and export bus capacitor 15
The product of upper output voltage values may be approximately equal to the input power of solar power generation component, it is known that solar power generation component it is defeated
Input voltage desired value Uin* can be provided by entering power utilization maximal power tracing algorithm, with 11 both ends of solar energy bus capacitor
Input voltage sampled value Uin is input to the second adjuster 221, the setting of output voltage after being coupled with input voltage desired value Uin*
It is input to the first tune after the upper limit value Uo* of range and the actual output voltage sampled value Uo* phase couplings at 15 both ends of output bus capacitor
Device 211 is saved, after the first adjuster 211, the output of third adjuster 231 intercouple with the sampled value IL of current sample element 5
It is input to adjuster 231, the output of adjuster 231 drives power switch tube 12 to work after drive module 3.Wherein, Uo* may be used also
Be output voltage setting range lower limiting value.
The embodiment that the first current adjustment is obtained in the method using sagging curve control is applied on BUCK circuits
Structure as shown in fig. 7, using sagging curve control method obtain the first duty ratio embodiment apply BUCK electricity
The structure of road as shown in figure 8,
It should be noted that the "+" or "-" symbol in Fig. 6, Fig. 7 and Fig. 8 can be carried out according to actual adjustment process
Adjustment, does not limit the invention.
The present invention introduces outer voltage 22 and current inner loop 23 and output on the basis of classical BUCK control circuits
The controlling units such as voltage compensation ring 21, outer voltage 22 mainly realize the maximal power tracing control of solar power generation, voltage
A part for constant current is given in the output of outer shroud 22 as inductance 14, while output voltage compensation ring 21, output are introduced in controlling
A part for constant current is also given in the output of voltage compensation ring 21 as inductance 14, by two parts to the electricity in constant current and inductance 14
Input quantities of the sampled value IL as current inner loop 23 is flowed, solar power generation may be implemented by the adjustment effect of current inner loop 23
Maximal power tracing real-time online, the dual purposes such as circuit output voltage stabilization.
Why the present invention can realize pair of the maximal power tracing real-time online of solar power generation, output voltage stabilization
Weight mesh, be because：
(1) when the exportable power of solar power generation component maximum power receivable less than or equal to load, i.e., defeated
When going out upper limit value of the voltage less than setting range, and two kinds of situations can be divided into：1) when output voltage is in setting range,
Maximal power tracing function possessed by outer voltage will ensure that solar power generation component is provided with maximum power to load at this time
Electric energy can weaken the effect of voltage compensation ring at this time, i.e., output voltage compensation ring only helps out at this time, if load has
Power management chip, output voltage can be maintained mainly by the power management chip of load, if load is common energy storage electricity
Pond, then：1. the control to output voltage can be decontroled in energy-storage battery constant-current charge, that is, remove the effect of voltage compensation ring, protects
Battery is demonstrate,proved with maximum power constant-current charge；2. in energy-storage battery constant pressure and trickle charge, output voltage compensation ring can be used as perseverance
Pressure and the regulation ring of trickle use.2) when output voltage is less than the lower limiting value of setting range, then think output voltage not at this time
Surely, it needs to recall to output voltage to setting range, therefore, maximal power tracing function possessed by outer voltage can be weak
Change, mainly worked by voltage compensation ring, into the control of line output voltage, or based on current input voltage and input electricity
Desired value is pressed to carry out maximal power tracing so that solar components are charged with maximum power output, proof load with maximum power,
Optionally, after output voltage is recalled to setting range, maximal power tracing can also be carried out.
(2) when solar energy output power maximum power receivable more than load, outer voltage 22 still maintains the sun
The Dynamic Regulating Process of the maximal power tracing of energy electrification component, i.e. the maximal power tracing real-time online of solar power generation, so
Without doing any compensation and adjusting to current inner loop, solar energy output power can lead to device when being more than the acceptable power of load
Output voltage is more than output voltage limit value, thus introduces output voltage compensation ring 21 in current inner loop at this time, basic principle
It is inputing to for the adjustment effect reduction current inner loop 23 when output voltage is more than given output voltage limit value by adjuster
It is fixed, since the governing speed of current inner loop 23 is faster than Voltage loop (including outer voltage 22 and voltage compensation ring 21), it is possible to
It readily realizes and is more than the output voltage stabilization that load is subjected under power situation in solar energy output power, while keeping the sun
The maximal power tracing function real-time online that can be generated electricity, it is ensured that device is less than load in the exportable power of solar energy and is subjected to work(
Solar maximum power output mode can be transformed into when rate at the first time.
As shown in figure 9, a kind of control method of solar recharging, including：
S1, input voltage, output voltage and the output current of acquisition DC converting module 1；
S2 is adjusted output current based on input voltage and output voltage, adjusted result；
S3 controls DC converting module 1 based on result is adjusted so that solar energy output power is current working ring
Maximum power output and output voltage under border maintain setting range.
As shown in Figure 10, step S2 is adjusted output current based on input voltage and output voltage, including：
S21, the upper limit value based on output voltage and setting range are adjusted, or are based on output voltage and setting range
Lower limiting value be adjusted, obtain the first current adjustment；
S22 is adjusted based on input voltage and input voltage desired value, obtains the second current adjustment；
S23 is adjusted output current based on the first current adjustment and the second current adjustment, adjusted knot
Fruit.
In one embodiment, as shown in figure 11, the upper limit value based on output voltage and setting range is adjusted, packet
It includes：S210a compares the upper limit value of output voltage and setting range；S211a, when output voltage is more than the upper limit value of setting range
When, based on beyond difference reduce the first current adjustment；Wherein, it is adjusted based on input voltage and input voltage desired value
Section, including：Current input voltage is assigned to input voltage by S220a when output voltage is more than the upper limit value of setting range
Desired value, and it is steady state value to export the second current adjustment.
In another embodiment, as shown in figure 12, the upper limit value based on output voltage and setting range is adjusted,
Including：S210b compares the lower limiting value of output voltage and setting range；S211b, when output voltage is less than the lower limit of setting range
When value, based on it is low go out difference increase the first current adjustment；Wherein, it is adjusted based on input voltage and input voltage desired value
Section, including：Current input voltage is assigned to input voltage by S220b when output voltage is less than the lower limiting value of setting range
Desired value, and it is steady state value to export the second current adjustment.
In yet another embodiment, as shown in figure 13, the upper limit value based on output voltage and setting range is adjusted,
Including：S210c judges output voltage whether in setting range, S211c, when output voltage is in setting range, output the
One current adjustment is 0 or saturation value；Wherein, it is adjusted based on input voltage and input voltage desired value, including：
S220c reduces the second current adjustment when output voltage is in setting range and the first current adjustment is saturation value, with
And when output voltage is in setting range and the first current adjustment is 0, it is based on input voltage and input voltage desired value tune
Save the second current adjustment so that the second current adjustment can reach maximum power output after output current is adjusted.
Wherein, control method can also include：When output voltage is more than the upper limit value of setting range, for the first time defeated is recorded
Enter voltage or input voltage desired value, with when output voltage is recalled to setting range, the input voltage based on record or input
The output power of solar charging device is adjusted to maximum power by voltage-target and maximal power tracing algorithm.
Optionally, input voltage desired value is calculated based on following methods：Calculate solar energy input power or solar energy
Output power；Input voltage is calculated based on solar energy input power or solar energy output power and maximal power tracing algorithm
Desired value.
In yet another embodiment, as shown in figure 14, output current is adjusted based on input voltage and output voltage
Section, including：
S1401, in upper limit value of the output voltage higher than setting range or when less than the lower limiting value of setting range, translation is set
Fixed sagging curve, using current value corresponding with the upper limit value of setting range on the sagging curve after translation as the first electric current tune
Section amount；
S1402 is adjusted based on input voltage and input voltage desired value, obtains the second current adjustment；
S1403 is adjusted output current based on the first current adjustment and the second current adjustment, adjusted knot
Fruit.
In yet another embodiment, as shown in figure 15, output current is adjusted based on input voltage and output voltage
Section, including：
S1501, in upper limit value of the output voltage higher than setting range or when less than the lower limiting value of setting range, translation is set
Fixed sagging curve exports the first duty ratio corresponding with output voltage on the sagging curve after translation；
S1502 is adjusted based on input voltage and input voltage desired value, obtains the second current adjustment；
S1503 is adjusted output current based on the second current adjustment, obtains the second duty ratio；
S1504, by the sum of the first duty ratio and the second duty ratio as adjusting result.
It should be noted that pi regulator may be used in the adjusting of the embodiment of the present invention, but it is not limited to pi regulator, it is every
It is adjusted using given value and the error amount of value of feedback, and the controller for providing regulated quantity can be used as the control of the embodiment of the present invention
Module, such as adaptive controller, fuzzy etc..Pi regulator is to constitute control deviation according to given value and real output value,
The ratio of deviation and integral are constituted into controlled quentity controlled variable by linear combination, controlled device is controlled.
It should be understood that the above-mentioned specific implementation mode of the present invention is used only for exemplary illustration or explains the present invention's
Principle, but not to limit the present invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole variations fallen into attached claim scope and boundary or this range and the equivalent form on boundary and is repairing
Change example.
Claims (20)
1. a kind of control device of solar recharging, which is characterized in that including DC converting module (1), control module (2) and drive
Dynamic model block (3)；
The control module (2) connect with the DC converting module (1), for acquiring the defeated of the DC converting module (1)
Enter voltage, output voltage and output current, and the output current is carried out based on the input voltage and the output voltage
It adjusts, it is adjusted as a result, and being sent to the drive module (3)；
The drive module (3), connect with the control module (2) and the DC converting module (1) respectively, for being based on institute
It states adjusting result to control the DC converting module (1) so that solar energy output power is under current working environment
The maximum power output and output voltage maintains setting range.
2. control device according to claim 1, which is characterized in that the control module (2) includes：
Voltage compensation module (21), is adjusted, or be based on for the upper limit value based on the output voltage and setting range
The lower limiting value of the output voltage and setting range is adjusted, and obtains the first current adjustment；
Maximum power adjustment module (22) is adjusted for being based on the input voltage and input voltage desired value, obtains
Two current adjustments；
Current regulating module (23), respectively even with the voltage compensation module (21) and the maximum power adjustment module (22)
It connects, the output current is adjusted for being based on first current adjustment and second current adjustment, is obtained
The adjusting result.
3. control device according to claim 2, which is characterized in that
The voltage compensation module (21), is additionally operable to the upper limit value of output voltage described in comparison and the setting range, when described
When output voltage is more than the upper limit value of the setting range, based on beyond difference reduce first current adjustment；
Maximum power adjustment module (22) is additionally operable to, when the output voltage is more than the upper limit value of the setting range, to work as
The preceding input voltage is assigned to the input voltage desired value, and it is steady state value to export second current adjustment.
4. control device according to claim 2, which is characterized in that
The voltage compensation module (21), is additionally operable to the lower limiting value of output voltage described in comparison and the setting range, when described
When output voltage is less than the lower limiting value of the setting range, based on it is low go out difference increase first current adjustment；
Maximum power adjustment module (22) is additionally operable to, when the output voltage is less than the lower limiting value of the setting range, to work as
The preceding input voltage is assigned to the input voltage desired value, and it is steady state value to export second current adjustment.
5. control device according to claim 2, which is characterized in that
The voltage compensation module (21) is additionally operable to judge the output voltage whether in the setting range, when described defeated
When going out voltage in the setting range, it is 0 or saturation value to export first current adjustment；
The maximum power adjustment module (22), be additionally operable to when the output voltage in the setting range and it is described first electricity
When stream regulated quantity is saturation value, reduce second current adjustment, and when the output voltage is in the setting range
And first current adjustment adjusts second electricity when being 0 based on the input voltage and the input voltage desired value
Flow regulated quantity so that second current adjustment can reach maximum power output after the output current is adjusted.
6. control device according to claim 3, which is characterized in that
The maximum power adjustment module (22) is additionally operable to when the output voltage is more than the upper limit value of the setting range,
Input voltage for the first time or input voltage desired value are recorded, when the output voltage is recalled to the setting range, to be based on
The input voltage of record or the input voltage desired value and maximal power tracing algorithm adjust solar energy output power
To maximum power.
7. control device according to claim 2, which is characterized in that
The maximum power adjustment module (22) is additionally operable to calculate solar energy input power or solar energy output power, Yi Jiji
The input electricity is calculated in the solar energy input power or the solar energy output power and maximal power tracing algorithm
Press desired value.
8. control device according to claim 1, which is characterized in that the control module (2) includes：
Voltage compensation module (21) is additionally operable in upper limit value of the output voltage higher than setting range or is less than setting range
Lower limiting value when, the sagging curve of setting is translated, by the upper limit value with the setting range on the sagging curve after translation
Corresponding current value is as the first current adjustment；
Maximum power adjustment module (22) is adjusted for being based on the input voltage and input voltage desired value, obtains
Two current adjustments；
Current regulating module (23) is connect with voltage compensation module (21) and maximum power adjustment module (22) respectively, is used for base
The output current is adjusted in first current adjustment and second current adjustment, obtains the adjusting knot
Fruit.
9. control device according to claim 1, which is characterized in that the control module (2) includes voltage compensation module
(21), maximum power adjustment module (22) and current regulating module (23)；
Voltage compensation module (21) is connect with drive module (3), the upper limit value for being higher than setting range in the output voltage
Or less than setting range lower limiting value when, translate the sagging curve of setting, by the sagging curve after translation with the output
Corresponding first duty ratio of voltage is exported to drive module (3)；
Maximum power adjustment module (22) is adjusted for being based on the input voltage and input voltage desired value, obtains
Two current adjustments；
Current regulating module (23) is connect with maximum power adjustment module (22) and DC converting module (1), for based on described
The output current is adjusted in second current adjustment, obtains the second duty ratio, and export to drive module (3)；
Drive module (3) is additionally operable to regard the sum of first duty ratio and second duty ratio as the adjusting result.
10. a kind of solar charging device, which is characterized in that including claim 1-9 any one of them solar rechargings
Control device further includes：Solar power generation component (4), is connected to the input terminal of DC converting module (1).
11. solar charging device according to claim 10, which is characterized in that
The solar power generation component (4) is additionally coupled to drive module (3), powers for the drive module (3).
12. a kind of control method of solar recharging, which is characterized in that including：
Acquire input voltage, output voltage and the output current of DC converting module (1)；
The output current is adjusted based on the input voltage and the output voltage, adjusted result；
The DC converting module (1) is controlled based on the adjusting result so that solar energy output power is current work
Maximum power output and the output voltage under condition environment maintain setting range.
13. control method according to claim 12, which is characterized in that input voltage and the output voltage of being based on is to defeated
Go out electric current to be adjusted, including：
Upper limit value based on the output voltage and setting range is adjusted, or is based on the output voltage and setting range
Lower limiting value be adjusted, obtain the first current adjustment；
It is adjusted based on the input voltage and input voltage desired value, obtains the second current adjustment；
The output current is adjusted based on first current adjustment and second current adjustment, it is adjusted
As a result.
14. control method according to claim 13, which is characterized in that described upper based on output voltage and setting range
Limit value is adjusted, including：
Compare the upper limit value of the output voltage and the setting range；
When the output voltage is more than the upper limit value of the setting range, based on beyond difference reduce the first electric current tune
Section amount；
Wherein, described to be adjusted based on input voltage and input voltage desired value, including：
When the output voltage is more than the upper limit value of the setting range, the current input voltage is assigned to described defeated
Enter voltage-target, and it is steady state value to export second current adjustment.
15. control method according to claim 13, which is characterized in that described upper based on output voltage and setting range
Limit value is adjusted, including：
Compare the lower limiting value of the output voltage and setting range；
When the output voltage is less than the lower limiting value of the setting range, based on it is low go out difference increase the first electric current tune
Section amount；
Wherein, described to be adjusted based on input voltage and input voltage desired value, including：
When the output voltage is less than the lower limiting value of the setting range, the current input voltage is assigned to described defeated
Enter voltage-target, and it is steady state value to export second current adjustment.
16. control method according to claim 13, which is characterized in that described upper based on output voltage and setting range
Limit value is adjusted, including：
The output voltage is judged whether in setting range, when the output voltage is in the setting range, exports institute
It is 0 or saturation value to state the first current adjustment；
Wherein, described to be adjusted based on input voltage and input voltage desired value, including：
When the output voltage is in the setting range and first current adjustment is saturation value, reduce described second
Current adjustment, and when the output voltage is in the setting range and first current adjustment is 0, it is based on institute
It states input voltage and the input voltage desired value adjusts second current adjustment so that second current adjustment pair
The output current can reach maximum power output after being adjusted.
17. control method according to claim 14, which is characterized in that further include：
When the output voltage is more than the upper limit value of the setting range, input voltage for the first time or input voltage target are recorded
Value, with when the output voltage is recalled to the setting range, the input voltage based on record or the input voltage
The solar energy output power is adjusted to maximum power by desired value and maximal power tracing algorithm.
18. control method according to claim 13, which is characterized in that the input voltage desired value is based on following methods
It is calculated：
Calculate solar energy input power or solar energy output power；
It is calculated based on the solar energy input power or the solar energy output power and maximal power tracing algorithm described
Input voltage desired value.
19. control method according to claim 12, which is characterized in that be based on the input voltage and the output voltage
The output current is adjusted, including：
In upper limit value of the output voltage higher than setting range or when less than the lower limiting value of setting range, translate under setting
Catenary, using current value corresponding with the upper limit value of the setting range on the sagging curve after translation as the first electric current
Regulated quantity；
It is adjusted based on the input voltage and input voltage desired value, obtains the second current adjustment；
The output current is adjusted based on first current adjustment and second current adjustment, is obtained described
Adjust result.
20. control method according to claim 12, which is characterized in that input voltage and the output voltage of being based on is to defeated
Go out electric current to be adjusted, including：
In upper limit value of the output voltage higher than setting range or when less than the lower limiting value of setting range, translate under setting
Catenary exports the first duty ratio corresponding with the output voltage on the sagging curve after translation；
It is adjusted based on the input voltage and input voltage desired value, obtains the second current adjustment；
The output current is adjusted based on second current adjustment, obtains the second duty ratio；
It regard the sum of first duty ratio and second duty ratio as the adjusting result.
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| CN114362165A (en) * | 2022-01-12 | 2022-04-15 | 金华电力设计院有限公司 | 5G communication base station voltage-stabilizing power supply method based on fuzzy control |
| CN114362165B (en) * | 2022-01-12 | 2023-10-31 | 金华电力设计院有限公司 | Fuzzy control-based 5G communication base station voltage-stabilizing power supply method |
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