CN108649614A - A kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch - Google Patents
A kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch Download PDFInfo
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- CN108649614A CN108649614A CN201810829020.8A CN201810829020A CN108649614A CN 108649614 A CN108649614 A CN 108649614A CN 201810829020 A CN201810829020 A CN 201810829020A CN 108649614 A CN108649614 A CN 108649614A
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Classifications
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- H02J3/385—
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0038—Circuits or arrangements for suppressing, e.g. by masking incorrect turn-on or turn-off signals, e.g. due to current spikes in current mode control
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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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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- Power Engineering (AREA)
- Inverter Devices (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses a kind of photovoltaic inverter grid-connected control devices based on Active Disturbance Rejection Control Sofe Switch,Including sequentially connected clamping soft switch,Three-phase full-bridge inverter,The inverter module that LC filters are constituted,And the PV photovoltaic arrays being connect with clamping soft switch input terminal,The input terminal of MPPT maximum voltage current tracking devices connects PV photovoltaic arrays,Output end connection adjusts detection module,The output end of the LC filters connects SVPWM generators by adjusting detection module,The control terminal of the output end connection three-phase full-bridge inverter of SVPWM generators,The controlled quentity controlled variable detection output of the three-phase full-bridge inverter is also associated with Sofe Switch control module,The Sofe Switch control module includes sequentially connected Sofe Switch condition detection module,Sofe Switch Active Disturbance Rejection Control module,Power amplifier and compensation device,The control terminal of the output end connection clamping soft switch of the compensation device.
Description
Technical field
The invention belongs to grid-connected control technology field more particularly to a kind of photovoltaics based on Active Disturbance Rejection Control Sofe Switch
Grid-connected inverters control device.
Background technology
As environmental problem becomes increasingly conspicuous, traditional fossil energy also increasingly depleted, develop and utilize regenerative resource at
For the only way of mankind's exhibition.And with the fast development of society, people are also gradually increasing the demand of electric power so that too
Positive energy photovoltaic power generation technology enters the fast-developing stage under these circumstances, and parallel network power generation becomes people and utilizes the sun
The main path of energy, core devices one of of the inverter as parallel network power generation, its switching control also become the weight of research
Point.
Currently used photovoltaic DC-to-AC converter is to use PID control, in control system operation, by environmental change, power grid wave
The influence of the problems such as dynamic and model parameter uncertainty, grid-connected process disturbance is also larger, in microgrid switching moment for power grid
Influence it is also larger.
Inverter based on Sofe Switch is a kind of method for the switching loss and switching noise that can reduce inverter well.
Sofe Switch realizes resonance using capacitor and inductor so that contactor realizes that no-voltage is opened and zero current when turning on and off
Shutdown, greatly reduces switching loss and switching noise.Traditional photovoltaic inverter grid-connected control system based on Sofe Switch
Including PV photovoltaic arrays, clamping soft switch, three-phase full-bridge inverter, LC filters, adjust detection automatic disturbance rejection controller, SVPWM
Generator, MPPT maximum voltage current tracking devices adjust detection automatic disturbance rejection controller from Park converters and MPPT maximum voltages
It is then fed into SVPWM impulse generators in control three-phase full-bridge inverter by processing after receiving signal in current tracking device
Each power tube being opened and turning off.The loss of this control system inverter in grid-connected switching process is larger, anti-interference energy
Power is weaker, and power quality is not high, some are slow for response speed.
Invention content
The object of the present invention is to provide a kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch, energy
The loss of inverter in grid-connected switching process is reduced, anti-interference ability and its response speed, stability of grid connection higher are improved.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of photovoltaic based on Active Disturbance Rejection Control Sofe Switch
Grid-connected inverters control device includes the inversion of sequentially connected clamping soft switch, three-phase full-bridge inverter, LC filters composition
The input terminal of module, and the PV photovoltaic arrays that are connect with clamping soft switch input terminal, MPPT maximum voltage current tracking devices connects
PV photovoltaic arrays are connect, output end connection adjusts detection module, and the output end of the LC filters is by adjusting detection module connection
SVPWM generators, the control terminal of the output end connection three-phase full-bridge inverter of SVPWM generators, the three phase full bridge inversion
The controlled quentity controlled variable detection output of device is also associated with Sofe Switch control module, and the Sofe Switch control module includes sequentially connected
Sofe Switch condition detection module, Sofe Switch Active Disturbance Rejection Control module, power amplifier and compensation device, the compensation device it is defeated
Outlet connects the control terminal of clamping soft switch.
The Sofe Switch Active Disturbance Rejection Control module includes extended state observer ESO, Nonlinear Tracking Differentiator, the first subtraction
Device, the second subtracter, nonlinearity erron feedback rates module, the first compensation factor, third subtracter, the second compensation factor；Tracking
The input terminal input setting reference value of differentiator；First output end of Nonlinear Tracking Differentiator connects the second input of the first subtracter
End, the second output terminal of Nonlinear Tracking Differentiator connect the second input terminal of the second subtracter, and the first input end of the first subtracter connects
Connect the first output end of extended state observer ESO；The first input end connection extended state observer ESO's of second subtracter
Second output terminal；The output end of first subtracter and the second subtracter be separately connected nonlinearity erron feedback rates module two are defeated
Enter end, the second input terminal of the output end connection third subtracter of nonlinearity erron feedback rates module；Extended state observer ESO
Third output end connect the first compensation factor, the first compensation factor signal output end connection third subtracter first input
End；The output end of third subtracter connects the second compensation factor, and the output end of the second compensation factor connects extended state observer
The first input end of ESO；The first input end of the output end connection controlled device of third subtracter, the second input of controlled device
End connection Sofe Switch realizes that the output end of detection module, the output end of controlled device connect the second of extended state observer ESO
Input terminal, the output end of output end, that is, Sofe Switch Active Disturbance Rejection Control module of controlled device.
The clamping soft switch includes the first capacitance, the first inductance, soft switch power pipe, one end of first capacitance
Connect the first end of one end and the first inductance of photovoltaic array, the current collection of the second end connection soft switch power pipe of the first capacitance
Pole, the source electrode of soft switch power pipe connect the other end of the second end and photovoltaic array of the first inductance, the second end of the first inductance
The input terminal of three-phase full-bridge inverter is separately connected with the other end of photovoltaic array.
The LC filters include third capacitance, the 4th capacitance, the 5th capacitance and the second inductance, third inductance, the 4th
Inductance composition three LC high-pass filters, second inductance, third inductance, the 4th inductance first end respectively with three-phase
The output end of full-bridge inverter connects, the second inductance, third inductance, the 4th inductance second end be separately connected third capacitance, the
The first end of four capacitances, the 5th capacitance, the second inductance, third inductance, the 4th inductance second end be also respectively connected with power grid, third
The second end connection of capacitance, the 4th capacitance, the 5th capacitance.
The adjusting detection module includes Park converters and adjusts detection automatic disturbance rejection controller, and the adjusting detects
Automatic disturbance rejection controller includes the first automatic disturbance rejection controller and the second automatic disturbance rejection controller, first automatic disturbance rejection controller and the
The structure of two automatic disturbance rejection controllers is identical with the structure of Sofe Switch Active Disturbance Rejection Control module；The input terminal of Park converters connects LC
The second end of second inductance, third inductance, the 4th inductance in filter, the first output end of Park converters, second output terminal
It is separately connected the disturbance input end of the first automatic disturbance rejection controller and the second automatic disturbance rejection controller, the first automatic disturbance rejection controller and second
The disturbance input end of automatic disturbance rejection controller also inputs the output signal for having MPPT maximum voltage current tracking devices, the first active disturbance rejection control
The reference input of device processed and the second automatic disturbance rejection controller distinguishes input current in the reference value of d axis and q axis components, and first is certainly anti-
Disturb the input terminal of the output end connection SVPWM generators of controller and the second automatic disturbance rejection controller, the output end of SVPWM generators
Connect the control terminal of six power tubes of three-phase full-bridge inverter.
Present invention has the advantage that：
The present invention adds on the basis of the outer shroud of existing Active Disturbance Rejection Control SVPWM with Sofe Switch automatic disturbance rejection controller
For the inner ring control system to Sofe Switch control of core, outer shroud control is mainly using automatic disturbance rejection controller for grid side
The case where measure voltage ＆ current constantly tracks, and disturbance rejection is combined control SVPWM generators, and SVPWM is according to the signal detected
It is analyzed, is resisted except disturbance, each power tube is then given to send out trigger pulse, driving corresponding power pipe opens completion photovoltaic array
Generated direct current becomes the alternating current of standard.The Sofe Switch control module of addition using automatic disturbance rejection controller as core, for
Nonlinear disturbance has extremely strong anti-interference ability and Control platform so that service time is more acurrate, preferably solves tradition
The seamless switching of the overshoot of controller and the intrinsic contradictions of rapidity, grid-connected system more can be steady, allows the switching process of inverter
Loss is less, and response speed is also faster, also improves power supply quality.
Description of the drawings
Fig. 1 is the circuit diagram of the present invention；
Fig. 2 is the structure chart of Active Disturbance Rejection Control module.
Specific implementation mode
The invention discloses a kind of photovoltaic inverter grid-connected control devices based on Active Disturbance Rejection Control Sofe Switch, such as Fig. 1 institutes
Show, including inverter module 1, inverter module 1 include sequentially connected clamping soft switch 101-1, three-phase full-bridge inverter 101-2,
LC filters 102, and the PV photovoltaic arrays 5 that are connect with clamping soft switch 101-1 input terminals, MPPT maximum voltage current trackings
The input terminal connection PV photovoltaic arrays 5 of device 4, output end connection adjust detection module 3, and the output end of the LC filters 102 is logical
It overregulates detection module 3 and connects SVPWM generators 7, the output end connection three-phase full-bridge inverter 101-2's of SVPWM generators 7
Control terminal.The controlled quentity controlled variable detection output of the three-phase full-bridge inverter 101-2 is also associated with Sofe Switch control module 2, institute
The Sofe Switch control module 2 stated includes sequentially connected Sofe Switch condition detection module 201, Sofe Switch Active Disturbance Rejection Control module
202, power amplifier 203 and compensation device 204, the control of the output end connection clamping soft switch 101-1 of the compensation device 204
End processed.The luminous energy of absorption is converted into electric energy by PV photovoltaic arrays 5, is supplied to inverter module direct current, is passed through clamping soft switch
101-1 is transferred to three-phase full-bridge inverter 101-2, and the alternating current of output is passed through LC filters by three-phase full-bridge inverter 101-2
Power grid is sent into after being filtered.Wherein the LC filters include third capacitance C3, the 4th capacitance C4, the 5th capacitance C5
With three LC high-pass filters of the second inductance L2, third inductance L3, the 4th inductance L4 composition, the second inductance L2, the
Three inductance L3, the 4th inductance L4 first ends are connect with the output end of three-phase full-bridge inverter 101-2 respectively, the second inductance L2,
Three inductance L3, the 4th inductance L4 second end be separately connected the first end of third capacitance C3, the 4th capacitance C4, the 5th capacitance C5,
Second inductance L2, third inductance L3, the 4th inductance L4 second end be also respectively connected with power grid 6, third capacitance C3, the 4th capacitance
The second end connection of C4, the 5th capacitance C5.
The output end of wherein LC filters is also connected with adjusting detection module, and the adjusting detection module includes Park transformation
Device 301 and adjusting detection automatic disturbance rejection controller 302 (including the first automatic disturbance rejection controller and second automatic disturbance rejection controller), Park become
The second end of second inductance L2, third inductance L3, the 4th inductance L4 in the input terminal connection LC filters of parallel operation 301, from three-phase
Full-bridge inverter 101-2 output ends extract three-phase current a phases, b phases, c phase three-dimensional signals, become two kinds by Park converters
The signal of plane, the first output end of Park converters 301, second output terminal are separately connected the first automatic disturbance rejection controller and
The disturbance input end of the disturbance input end of two automatic disturbance rejection controllers, the first automatic disturbance rejection controller and the second automatic disturbance rejection controller is also defeated
Enter to have the output signal of MPPT maximum voltage current tracking devices；The reference of first automatic disturbance rejection controller and the second automatic disturbance rejection controller
Reference value i of the input terminal difference input current in d axis and q axis componentsd *And iq *, MPPT maximum voltage current trackings device 4 is from PV light
5 collection voltages Vm of photovoltaic array, electric current Im are input to adjusting detection automatic disturbance rejection controller 302 after being handled, it is certainly anti-to adjust detection
The signal for disturbing the generation of controller 302 is sent into SVPWM generators, and the output end of SVPWM generators 7 connects three-phase full-bridge inverter
The control terminal of six power tube V1-V6 of 101-2, the power tube V1-V6 of control three-phase full-bridge inverter 101-2 is in certain sequence
The electric energy reversion reaction of inverter can be realized by opening.The structure of two of which automatic disturbance rejection controller and Sofe Switch active disturbance rejection control
The internal structure of device 202 processed is the same.
In the TD Nonlinear Tracking Differentiators of automatic disturbance rejection controller, vt *Referred to as original signal, the output end v of differentiator1(t) with
The first input end of NLSEF connects, and for receiving original signal, and original signal from above extracts differential signal,
The output end v of differentiator2(t) it is connect with the second input terminal of the NLSEF, for receiving the differential signal.NLSEF is defeated
Outlet is connect with control object Go (s) and ESO respectively, for receiving the tracking signal, the differential signal and described defeated
The disturbance estimated value gone out, and nonlinear combination is carried out, it is exported respectively to the SVPWM generators.
The clamping soft switch includes the first capacitance C1, the first inductance L1, soft switch power pipe V0, first capacitance
The first end of one end and the first inductance L1 of one end connection PV photovoltaic arrays 5 of C1, the second end connection of the first capacitance C1 is soft to open
Closing the collector of power tube V0, the source electrode of soft switch power pipe V0 connects the second end of the first inductance L1, and the of the first inductance L1
The other end of two ends and PV photovoltaic arrays 5 is separately connected the input terminal of three-phase full-bridge inverter 101-2.
As shown in Fig. 2, the Sofe Switch Active Disturbance Rejection Control module include extended state observer ESO, Nonlinear Tracking Differentiator,
First subtracter, the second subtracter, nonlinearity erron feedback rates, the first compensation factor, third subtracter, the second compensation factor；
Sofe Switch condition detection module detects signal u from the output end of three-phase full-bridge inverter 101-2in,C,D(UinIt is the bridge of inverter
Arm voltage；C refers to the total capacitance (natural capacity C1+ compensating electric capacity Cr) of Sofe Switch, and duty ratio D is to be added in soft switch power pipe V0
Pulse duty ratio), be a Sofe Switch formula inside Sofe Switch condition detection module, be to judge that can Sofe Switch normal work
Make, suitable Sofe Switch formula can be selected as needed；It, will if meeting by detecting whether each value meets corresponding condition
Signal is sent to the disturbance end of Sofe Switch Active Disturbance Rejection Control module, i.e. controlled device Go(S) the second input terminal.Nonlinear Tracking Differentiator
The input terminal of TD connects the second input of the first subtracter for inputting setting reference value, the first output end of Nonlinear Tracking Differentiator TD
End, the second output terminal of Nonlinear Tracking Differentiator connect the second input terminal of the second subtracter, and the first input end of the first subtracter connects
Connect the first output end of extended state observer ESO；The first input end connection extended state observer ESO's of second subtracter
Second output terminal；The output end of first subtracter and the second subtracter is separately connected two inputs of nonlinearity erron feedback rates
End, for receiving original signal, and original signal from above extracts tracking signal and differential signal, nonlinearity erron
Second input terminal of the output end connection third subtracter of feedback rates NLSEF；The third output end of extended state observer ESO connects
Connect the first compensation factor, the first input end of the signal output end connection third subtracter of the first compensation factor；Third subtracter
Output end connect the second compensation factor, the first input of the output end connection extended state observer ESO of the second compensation factor
End；The output end connection controlled device G of third subtractero(S) first input end, controlled device Go(S) output end connection is expanded
Open the second input terminal of state observer ESO, controlled device Go(S) output of output end, that is, Sofe Switch Active Disturbance Rejection Control module
End.The output end of nonlinearity erron feedback rates NLSEF respectively with control object GO(s) it is connected with ESO, for receiving the tracking
The disturbance estimated value of signal, the differential signal and the output, and nonlinear combination is carried out, output controlled quentity controlled variable is to controlled pair
As GO(s).Power amplifier 203 is added in the output end of Sofe Switch automatic disturbance rejection controller 202, control signal f is exported to benefit
Appropriate amplification is done to signal when repaying device, is more advantageous to compensation of the compensation device for inductance and the control to clamping soft switch.
Closed-loop control system controls the value of compensation device according to the real-time requirement of system with disturbance, and then determines the capacitance electricity at current time
The value of sense realizes the Sofe Switch control of inverter.
Core of the invention is the inner ring control of inverter, i.e. Sofe Switch control module 2, Sofe Switch Active Disturbance Rejection Control module
Power amplifier will be added to compensation device in 2 output controlled quentity controlled variables therebetween, and power amplification is carried out to control signal.Compensation device root
The capacitor and inductor of clamping soft switch this moment is compensated according to control signal, when inductance value is too small, resonance may be made to occur
Time slightly lags, and is affected for the turn-on consumption of inverter, and after the control compensation by control unit, it can realize electricity
The value that electrification holds opens turn-off transient in switch and generates resonance, and reduces and temporal hesitate or in advance, can thus make
The loss of Sofe Switch type gird-connected inverter is less, is conducive to the switching of photovoltaic DC-to-AC converter and power grid, control response speed faster, also more
Add stabilization.
Claims (5)
1. a kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch, including sequentially connected clamp is soft opens
The inverter module that pass, three-phase full-bridge inverter, LC filters are constituted, and the PV photovoltaic battle arrays that are connect with clamping soft switch input terminal
The input terminal of row, MPPT maximum voltage current tracking devices connects PV photovoltaic arrays, and output end connection adjusts detection module, the LC
The output end of filter connects SVPWM generators by adjusting detection module, and the output end of SVPWM generators connects three phase full bridge
The control terminal of inverter, it is characterised in that：The controlled quentity controlled variable detection output of the three-phase full-bridge inverter is also associated with soft open
Control module is closed, the Sofe Switch control module includes sequentially connected Sofe Switch condition detection module, Sofe Switch active disturbance rejection
Control module, power amplifier and compensation device, the control terminal of the output end connection clamping soft switch of the compensation device.
2. the photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch, feature exist as described in claim 1
In：The Sofe Switch Active Disturbance Rejection Control module includes extended state observer ESO, Nonlinear Tracking Differentiator, the first subtracter, second
Subtracter, nonlinearity erron feedback rates module, the first compensation factor, third subtracter, the second compensation factor；Nonlinear Tracking Differentiator
Input terminal input setting reference value；First output end of Nonlinear Tracking Differentiator connects the second input terminal of the first subtracter, and tracking is micro-
The first input end of the second input terminal for dividing the second output terminal of device to connect the second subtracter, the first subtracter connects expansion state
The first output end of observer ESO；The second output of the first input end connection extended state observer ESO of second subtracter
End；The output end of first subtracter and the second subtracter is separately connected two input terminals of nonlinearity erron feedback rates module, non-
Second input terminal of the output end connection third subtracter of linearity error feedback rates module；The third of extended state observer ESO
Output end connects the first compensation factor, the first input end of the signal output end connection third subtracter of the first compensation factor；The
The output end of three subtracters connects the second compensation factor, the output end connection extended state observer ESO's of the second compensation factor
First input end；The first input end of the output end connection controlled device of third subtracter, the second input terminal of controlled device connect
Connect the output end that Sofe Switch realizes detection module, the second input of the output end connection extended state observer ESO of controlled device
End, the output end of output end, that is, Sofe Switch Active Disturbance Rejection Control module of controlled device.
3. the photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch as claimed in claim 1 or 2, feature
It is：The clamping soft switch includes the first capacitance, the first inductance, soft switch power pipe, and one end of first capacitance connects
The first end of one end and the first inductance of photovoltaic array is connect, the second end of the first capacitance connects the collector of soft switch power pipe,
The source electrode of soft switch power pipe connects the other end of the second end and photovoltaic array of the first inductance, the second end and light of the first inductance
The other end of photovoltaic array is separately connected the input terminal of three-phase full-bridge inverter.
4. the photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch, feature exist as claimed in claim 3
In：The LC filters include third capacitance, the 4th capacitance, the 5th capacitance and the second inductance, third inductance, the 4th inductance group
At three LC high-pass filters, second inductance, third inductance, the first end of the 4th inductance are inverse with three phase full bridge respectively
Become device output end connection, the second inductance, third inductance, the 4th inductance second end be separately connected third capacitance, the 4th capacitance,
The first end of 5th capacitance, the second inductance, third inductance, the 4th inductance second end be also respectively connected with power grid, third capacitance,
The second end connection of four capacitances, the 5th capacitance.
5. the photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch, feature exist as claimed in claim 4
In：The adjusting detection module includes Park converters and adjusts detection automatic disturbance rejection controller, and adjusting detection is certainly anti-
It includes the first automatic disturbance rejection controller and the second automatic disturbance rejection controller to disturb controller, and first automatic disturbance rejection controller and second is certainly
The structure of disturbance rejection control device is identical with the structure of Sofe Switch Active Disturbance Rejection Control module；The input terminal connection LC filtering of Park converters
The second end of second inductance, third inductance, the 4th inductance in device, the first output end of Park converters, second output terminal difference
The disturbance input end of the first automatic disturbance rejection controller and the second automatic disturbance rejection controller is connected, the first automatic disturbance rejection controller and second resist certainly
The disturbance input end for disturbing controller also inputs the output signal for having MPPT maximum voltage current tracking devices, the first automatic disturbance rejection controller
Input current is distinguished in the reference value of d axis and q axis components, the first active disturbance rejection control with the reference input of the second automatic disturbance rejection controller
The output end of device processed and the second automatic disturbance rejection controller connects the input terminal of SVPWM generators, the output end connection of SVPWM generators
The control terminal of six power tubes of three-phase full-bridge inverter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810829020.8A CN108649614B (en) | 2018-07-25 | 2018-07-25 | Photovoltaic inverter grid-connected control device based on active disturbance rejection control soft switch |
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| CN201810829020.8A CN108649614B (en) | 2018-07-25 | 2018-07-25 | Photovoltaic inverter grid-connected control device based on active disturbance rejection control soft switch |
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| CN108649614B CN108649614B (en) | 2023-05-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412410A (en) * | 2018-10-29 | 2019-03-01 | 嘉兴市恒创电力设备有限公司 | A kind of extracting method of the differential signal for One Buck-Boost converter body output voltage PID control |
| CN109739292A (en) * | 2019-01-23 | 2019-05-10 | 济南大学 | Photovoltaic system MPPT obscures Auto-disturbance-rejection Control, controller and system |
| CN111817589A (en) * | 2020-06-28 | 2020-10-23 | 上海电机学院 | DC/AC converter based on soft switching technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951186A (en) * | 2010-09-27 | 2011-01-19 | 浙江大学 | Soft switching three-phase gird-connected inverter additionally provided with freewheeling path |
| CN102611381A (en) * | 2012-03-12 | 2012-07-25 | 浙江工业大学 | Direct torque control system of permanent-magnet synchronous motor |
| US20180166883A1 (en) * | 2015-08-10 | 2018-06-14 | Huawei Technologies Co., Ltd. | Low voltage ride-through control system and method for multi-inverter grid-connected power converter |
| CN208433763U (en) * | 2018-07-25 | 2019-01-25 | 河南城建学院 | A kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch |
-
2018
- 2018-07-25 CN CN201810829020.8A patent/CN108649614B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951186A (en) * | 2010-09-27 | 2011-01-19 | 浙江大学 | Soft switching three-phase gird-connected inverter additionally provided with freewheeling path |
| CN102611381A (en) * | 2012-03-12 | 2012-07-25 | 浙江工业大学 | Direct torque control system of permanent-magnet synchronous motor |
| US20180166883A1 (en) * | 2015-08-10 | 2018-06-14 | Huawei Technologies Co., Ltd. | Low voltage ride-through control system and method for multi-inverter grid-connected power converter |
| CN208433763U (en) * | 2018-07-25 | 2019-01-25 | 河南城建学院 | A kind of photovoltaic inverter grid-connected control device based on Active Disturbance Rejection Control Sofe Switch |
Non-Patent Citations (2)
| Title |
|---|
| 何国锋等: ""基于线性自抗扰光伏逆变器的并网电流控制研究"", 《可再生能源》 * |
| 李睿等: ""一种新型有源箝位软开关三相并网逆变器"", 《中国电机工程学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109412410A (en) * | 2018-10-29 | 2019-03-01 | 嘉兴市恒创电力设备有限公司 | A kind of extracting method of the differential signal for One Buck-Boost converter body output voltage PID control |
| CN109739292A (en) * | 2019-01-23 | 2019-05-10 | 济南大学 | Photovoltaic system MPPT obscures Auto-disturbance-rejection Control, controller and system |
| CN111817589A (en) * | 2020-06-28 | 2020-10-23 | 上海电机学院 | DC/AC converter based on soft switching technology |
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