CN207442467U - A kind of two-stage type photovoltaic inverter grid-connected control device - Google Patents
A kind of two-stage type photovoltaic inverter grid-connected control device Download PDFInfo
- Publication number
- CN207442467U CN207442467U CN201721662535.0U CN201721662535U CN207442467U CN 207442467 U CN207442467 U CN 207442467U CN 201721662535 U CN201721662535 U CN 201721662535U CN 207442467 U CN207442467 U CN 207442467U
- Authority
- CN
- China
- Prior art keywords
- module
- output terminal
- input
- disturbance rejection
- active disturbance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Inverter Devices (AREA)
Abstract
A kind of two-stage type photovoltaic inverter grid-connected control device, including：Photovoltaic array module, DC/DC translation circuits, DC/AC inverter circuits, DC/DC control modules and DC/AC control modules；Wherein, the first linear Active Disturbance Rejection Control module is included in DC/DC controller modules；DC/AC control modules include the second linear active disturbance rejection control module and third linear Active Disturbance Rejection Control module, the first linear Active Disturbance Rejection Control module, the second linear active disturbance rejection control module and the third linear Active Disturbance Rejection Control module set disturbs for eliminating, and makes system robustness strong.The utility model is simple in structure, and it is convenient to realize, both eliminates system disturbance, the harmonic content for making grid-connected current is relatively low, and enhances the robustness of system.
Description
Technical field
The utility model belongs to Technics of Power Electronic Conversion technical field, is related to a kind of two-stage type photovoltaic inverter grid-connected control dress
It puts.
Background technology
With social progress and development, the consumption of traditional energy cannot not only meet the needs of human future, but also
The problems such as environmental pollution can be brought, therefore new energy is greatly developed as a kind of inexorable trend, and solar energy is most managed as one kind
The new energy thought can be photovoltaic array supply energy source.
Inverter plays vital work as solar power system and the interface of grid contact in grid-connected system
With.When work, the power of photovoltaic module output accesses power grid by DC/DC converter boosts, then through DC/AC converters.
In order to obtain the grid-connected current of higher quality, inverter is by the LCL filter via line impedance of inverter side in point of common coupling
It is bound up with power grid.LCL type wave filter can utilize smaller total inductance value to being compared to single inductance L-type wave filter
Frequency glitches of uniting realize better inhibition, and LCL type wave filter easily generates resonance, is distorted grid-connected current.
Traditional control strategy uses PI controllers, and the output of inverter is of coupled connections by LCL filter and power grid
Point of common coupling.When inverter use SPWM Technique when there are inertial element, using two-stage type light during PI controllers
It lies prostrate grid-connected inverters system and there is longer delay；Since photovoltaic array is influenced by uncertainties such as intensity of illumination, environment temperatures,
PI controllers are weak to these disturbance adjustings；Contain low-order harmonic in power grid, regard low-order harmonic as disturbance, PI controllers are adjusted
Effect is restricted.The grid-connected current of traditional PI controllers is not only related with the impedance of LCL filter but also and grid-connected voltage
It is related.The disturbances such as the harmonic wave in the different grid-connected voltages simultaneously of LCL filter impedance value can all influence the quality of grid-connected current.
Utility model content
The utility model is intended to provide the two-stage type photovoltaic inversion of a kind of simple in structure, strong interference immunity and fast response time
Device grid-connection control device.
In order to solve the above technical problems, the utility model provides following technical solution：A kind of two-stage type photovoltaic inversion
Device grid-connection control device, including photovoltaic array module, DC/DC translation circuits, DC/AC inverter circuits, DC/DC control modules and
DC/AC control modules；
The DC/DC controller modules include：Maximal power tracing module, the first linear Active Disturbance Rejection Control module and pulse
Width modulation module, the electric current of the current input terminal connection photovoltaic array mould photovoltaic polar plate in the block of maximal power tracing module are adopted
Collect output terminal；The voltage input end of the voltage acquisition output terminal connection maximal power tracing module of photovoltaic polar plate and first it is linear from
Second input terminal of disturbance rejection control module；The first input end connection maximal power tracing mould of first linear Active Disturbance Rejection Control module
The output terminal of block；The input terminal of the output terminal connection Pulse width modulation module of first linear Active Disturbance Rejection Control module, pulse are wide
The output terminal of degree modulation module controls being turned on and off for the photovoltaic power pipe in DC/DC translation circuits；
The DC/AC controller modules include：Lock phase module, sinusoid fiducial ripple generation module, the second linear active disturbance rejection control
Molding block, sinusoidal pulse width modulation module, third linear Active Disturbance Rejection Control module and multiplication module；It is steady in DC/AC inverter circuits
Control source in voltage capacitance is to the first input end of third linear Active Disturbance Rejection Control module, the reference voltage input of electric capacity of voltage regulation
To the second input terminal of third linear Active Disturbance Rejection Control module, the output terminal connection multiplier of third linear Active Disturbance Rejection Control module
Second input terminal of module locks the input terminal connection AC network of phase module, locks the output terminal connection sinusoid fiducial ripple of phase module
The input terminal of generation module, the first input end of the output terminal connection multiplication module of sinusoid fiducial ripple generation module, multiplier
The output terminal of module connects the first input end of the second linear active disturbance rejection control module, and the of the second linear active disturbance rejection control module
The input current of filter inductance in DC/AC inverter circuits, the output of the second linear active disturbance rejection control module are inputted on two input terminals
End is connected with the input terminal of sinusoidal pulse width modulation module, in sinusoidal pulse width modulation module output signal control DC/AC inverter circuits
The conducting and shut-off of four power tubes.
The first, second or third linear active disturbance rejection control module includes the first subtracter, the second subtracter, the 3rd
Subtracter, first adder, second adder, first integrator, second integral device, proportionality coefficient module, the first control gain
Module, the second control gain module, the first coefficient module and the second coefficient module；
The first input end of first subtracter inputs for the first of first, second or third linear active disturbance rejection control module
End；The first input end of 3rd subtracter is the second input terminal of first, second or third linear active disturbance rejection control module, the
First, second or third linear Active Disturbance Rejection Control module input signal tracking signal be input to the first subtracter second input
End, the tracking signal of first, second or third linear active disturbance rejection control module input signal are input to the 3rd subtracter simultaneously
Second input terminal, the output terminal of the 3rd subtracter connect the first coefficient module and the second coefficient module, the first coefficient module respectively
Output terminal connection first adder first input end, the second coefficient module output terminal connection second integral device input
End, the output terminal of second integral device connect the first input end of second adder and the second subtracter respectively, second adder
Output terminal connects the second input terminal of first adder, the output terminal connection first integrator of first adder, first integrator
Output terminal connect the first subtracter the second input terminal, the first subtracter output terminal connection proportionality coefficient module input
End, the output terminal of proportionality coefficient module connect the second input terminal of the second subtracter, the output terminal connection first of the second subtracter
The input terminal of gain module is controlled, the output terminal connection second of the first control gain module controls the input terminal of gain module, the
Second input terminal of the output terminal connection second adder of two control gain modules, the output terminal conduct of the first control gain module
The output terminal of first, second or third linear active disturbance rejection control module.
The DC/DC translation circuits include：Storage capacitor, energy storage inductor, diode and photovoltaic power pipe, storage capacitor is just
Pole and one end of energy storage inductor be connected to the first output terminal of photovoltaic polar plate, the other end of energy storage inductor and the anode of diode and
The collector connection of photovoltaic power pipe；It is second defeated to be all connected with photovoltaic polar plate for the source electrode of photovoltaic power pipe, the cathode of storage capacitor
Outlet.
The DC/AC inverter circuits include：Electric capacity of voltage regulation, the first power tube, the second power tube, the 3rd power tube, the 4th
Power tube, inversion inductor, filter capacitor and filter inductance；The collector of the source electrode of first power tube and the second power tube connects,
The collector connection of the source electrode and the 4th power tube of 3rd power tube, the positive ends of electric capacity of voltage regulation and the first power tube, the 3rd
The collector of the collector connection of power tube, the first power tube and the 3rd power tube is also connected with the cathode of diode；Electric capacity of voltage regulation
Negative polarity end connect the second power tube, the source electrode of the 4th power tube, the second power tube, the 4th power tube collector connection light
Lie prostrate the second output terminal of pole plate；Inversion inductor one end connects the collector of the first power tube；The other end connection filter of inversion inductor
One end of ripple capacitance and one end of filter inductance, the other end of filter capacitor connect the source electrode of the 4th power tube, filter inductance
Other end incoming transport power grid.
The DC/AC inverter circuits further include line reactance, and the other end of filter inductance passes through line reactance incoming transport
Power grid.
By above technical scheme, the beneficial effects of the utility model are：The utility model is simple in structure, and it is convenient to realize,
Both system disturbance is eliminated, the harmonic content for making grid-connected current is relatively low, and enhances the robustness of system；The utility model simultaneously
The device has the advantages that strong interference immunity, fast response time, strong robustness, reduces the workload of parameter tuning.
Description of the drawings
Fig. 1 is the utility model circuit diagram；
Fig. 2 is first, second or third linear active disturbance rejection control module structure diagram.
Specific embodiment
A kind of two-stage type photovoltaic inverter grid-connected control device, as depicted in figs. 1 and 2, including：Photovoltaic array module, DC/
DC translation circuits, DC/AC inverter circuits, DC/DC control modules and DC/AC control modules.
Photovoltaic array module includes：Photovoltaic polar plate GF can convert the solar into electric energy by photovoltaic polar plate GF.
DC/DC translation circuits include：Storage capacitor C1, energy storage inductor L1, diode D and photovoltaic power pipe S0, wherein, storage
Energy capacitance C1, energy storage inductor L1, diode D and photovoltaic power pipe S0 composition Boost circuits, Boost circuit play the work of boosting
With.The anode of storage capacitor C1 is connected to the first output terminal of photovoltaic polar plate GF, energy storage inductor L1 with one end of energy storage inductor L1
The other end be connected with the anode of diode D and the collector of photovoltaic power pipe S0；Source electrode, the storage capacitor of photovoltaic power pipe S0
The second output terminal of the cathode connection photovoltaic polar plate GF of C1.
DC/AC inverter circuits include：Electric capacity of voltage regulation C2, the first power tube S1, the second power tube S2, the 3rd power tube S3,
4th power tube S4, inversion inductor L2, filter capacitor C3, line reactance L4 and filter inductance L3.
The collector of the source electrode of first power tube S1 and the second power tube S2 connect, the source electrode and the 4th of the 3rd power tube S3
The collector connection of the collector connection of power tube S4, the anode of electric capacity of voltage regulation C2 and the first power tube S1, the 3rd power tube S3,
The collector of first power tube S1 and the 3rd power tube S3 is also connected with the cathode of diode D.
The second power tube S2 of negative polarity end connection, the source electrode of the 4th power tube S4 of electric capacity of voltage regulation C2, the second power tube S2,
The second output terminal of the collector connection photovoltaic polar plate GF of 4th power tube S4.Inversion inductor L2 one end connects the first power tube S1
Collector；One end of other end connection filter capacitor C3 of inversion inductor L2 and one end of filter inductance L3, filter capacitor C3
The other end connect the source electrode of the 4th power tube S4, the other end of filter inductance L3 passes through line reactance L4 incoming transport power grids G.
DC/DC controller modules include：Maximal power tracing module MTTP, the first linear Active Disturbance Rejection Control module LADRC1
With Pulse width modulation module PMW.
The first output terminal of the current input terminal connection photovoltaic polar plate GF of maximal power tracing module MTTP；Photovoltaic polar plate GF
The first output terminal be connected with the second output terminal of photovoltaic polar plate GF after connect the control source of maximal power tracing module MTTP
End and the second input terminal of the first linear Active Disturbance Rejection Control module LADRC1, i.e., in the first linear Active Disturbance Rejection Control module LADRC1
The first input end of 3rd subtracter 10.
The first input end of first linear Active Disturbance Rejection Control module LADRC1, i.e., the first linear Active Disturbance Rejection Control module
The output terminal of the first input end connection maximal power tracing module MTTP of first multiplier 1 in LADRC1；First is linear from anti-
The input terminal of the output terminal connection Pulse width modulation module PMW of control module LADRC1 is disturbed, Pulse width modulation module PMW's
Output terminal control photovoltaic power pipe S0's is turned on and off.
DC/AC controller modules include：Lock phase module PLL, sinusoid fiducial ripple generation module sin, the second linear active disturbance rejection
Control module LADRC2, sinusoidal pulse width modulation module SPMW, third linear Active Disturbance Rejection Control module LADRC3 and multiplication module
CFQ.Lock phase module PLL, sinusoid fiducial ripple generation module S, sinusoidal pulse width modulation module SPMW and multiplication module CFQ are into
The ripe prior art.
The voltage value at electric capacity of voltage regulation C2 both ends is input to the first input end of third linear Active Disturbance Rejection Control module LADRC3,
That is the first input end of the first multiplier 1, the reference voltage of electric capacity of voltage regulation C2 in third linear Active Disturbance Rejection Control module LADRC3
Value is input to the second input terminal of third linear Active Disturbance Rejection Control module LADRC3, i.e. third linear Active Disturbance Rejection Control module
The first input end of 3rd subtracter 10 in LADRC3.
The input terminal connection AC network G of phase module PLL is locked, the output of lock phase module PLL is synchronous reference phase, lock
The input terminal of the output terminal connection sinusoid fiducial ripple generation module sin of phase module PLL, sinusoid fiducial ripple generation module sin's is defeated
The first input end of outlet connection multiplication module CFQ, the second input terminal and the third linear active disturbance rejection control of multiplication module CFQ
The output terminal of molding block LADRC3, third linear Active Disturbance Rejection Control module LADRC3 output amplitude reference current Iref to multiplier
The second input terminal of module CFQ.The first input end of second linear active disturbance rejection control module LADRC2, i.e. multiplication module CFQ
The instantaneous reference electric current of output is input to the first input of first comparator 1 in the second linear active disturbance rejection control module LADRC2
End, the input current of filter inductance L2i g The second input terminal of the second linear active disturbance rejection control module LADRC2 is input to, i.e.,
The first input end of 3rd subtracter 10 in LADRC, output terminal and the positive taut pulse of the second linear active disturbance rejection control module LADRC2
The input terminal connection of wide modulation module SPMW, sinusoidal pulse width modulation module SPMW output signals control the first power tube S1, second
The conducting and shut-off of power tube S2, the 3rd power tube S3 and the 4th power tube S4.
Wherein, first, second or third linear active disturbance rejection control module LADRC3 structures are identical, disturb, make for eliminating
System robustness is strong.First, second or third linear active disturbance rejection control module LADRC3 subtracts including the first subtracter 1, second
Musical instruments used in a Buddhist or Taoist mass 3, the 3rd subtracter 10, first adder 6, second adder 8, first integrator 5, second integral device 11, proportionality coefficient
Module 2, first controls gain module 4, second to control gain module 9, the first coefficient module 7 and the second coefficient module 12.First
Subtracter 1, the second subtracter 3, the 3rd subtracter 10, first adder 6, second adder 8, first integrator 5, second integral
Device 11, proportionality coefficient module 2, first control gain module 4, second to control gain module 9, the first coefficient module 7 and the second system
Digital-to-analogue block 12 is ripe existing module.
The first input end of first subtracter 1 is the of first, second or third linear active disturbance rejection control module LADRC3
One input terminal；The first input end of 3rd subtracter 10 is first, second or third linear active disturbance rejection control module LADRC3's
Second input terminal.
The tracking signal of first, second or third linear active disturbance rejection control module LADRC3 input signals connects the first subtraction
Second input terminal of device 1, the tracking signal of first, second or third linear active disturbance rejection control module LADRC3 input signals are also defeated
Enter the second input terminal to the 3rd subtracter 10, the output terminal of the 3rd subtracter 10 connects the first coefficient module 7 and second respectively
Coefficient module 12.
The input terminal of the output terminal connection first adder 6 of first coefficient module 7, the output terminal of the second coefficient module 12 connect
The input terminal of second integral device 11 is connect, the output terminal of second integral device 11 connects 8 and second subtracter 3 of second adder respectively
First input end, the input terminal of the output terminal connection first adder 6 of second adder 8, the output terminal connection of first adder 6
First integrator 5, the output terminal of first integrator 5 connect the second input terminal of the first subtracter 1, the output of the first subtracter 1
The input terminal of end connection proportionality coefficient module 2, the output terminal of proportionality coefficient module 2 connect the second input terminal of the second subtracter 3,
The input terminal of output terminal connection the first control gain module 4 of second subtracter 3, the output terminal of the first control gain module 4 connect
The input terminal of the second control gain module 9 is connect, the second of the output terminal connection second adder 8 of the second control gain module 9 is defeated
Enter end, the output terminal of the first control gain module 4 is as the defeated of first, second or third linear active disturbance rejection control module LADRC3
Outlet.
The utility model is simple in structure, and it is convenient to realize, Auto Disturbances Rejection Control Technique is studied for nonlinear function,
In mainly include：Nonlinear Tracking Differentiator (TD), nonlinearity erron feedback (NLSEF) and extended state observer (ESO) composition.From anti-
Disturbing control has the advantages that strong interference immunity, fast response time, strong robustness.Linear active disturbance rejection controller (LADRC) is certainly
Linearisation is carried out on the basis of disturbance rejection control device and is designed research with parametrization, not only there is active disturbance rejection, but also subtract
The small workload of parameter tuning.The utility model both eliminates system disturbance, and the harmonic content for making grid-connected current is relatively low, and increases
The strong robustness of system.
Claims (5)
1. a kind of two-stage type photovoltaic inverter grid-connected control device, it is characterised in that：It is converted including photovoltaic array module, DC/DC
Circuit, DC/AC inverter circuits, DC/DC control modules and DC/AC control modules；
The DC/DC controller modules include：Maximal power tracing module, the first linear Active Disturbance Rejection Control module and pulse width
Modulation module, the current acquisition of the current input terminal connection photovoltaic array mould photovoltaic polar plate in the block of maximal power tracing module are defeated
Outlet；The voltage input end and the first linear active disturbance rejection of the voltage acquisition output terminal connection maximal power tracing module of photovoltaic polar plate
Second input terminal of control module；The first input end connection maximal power tracing module of first linear Active Disturbance Rejection Control module
Output terminal；The input terminal of the output terminal connection Pulse width modulation module of first linear Active Disturbance Rejection Control module, pulse width tune
The output terminal of molding block controls being turned on and off for the photovoltaic power pipe in DC/DC translation circuits；
The DC/AC controller modules include：Lock phase module, sinusoid fiducial ripple generation module, the second linear active disturbance rejection control mould
Block, sinusoidal pulse width modulation module, third linear Active Disturbance Rejection Control module and multiplication module；Voltage stabilizing electricity in DC/AC inverter circuits
To the first input end of third linear Active Disturbance Rejection Control module, the reference voltage of electric capacity of voltage regulation is input to for control source in appearance
Second input terminal of three linear active disturbance rejection control modules, the output terminal connection multiplication module of third linear Active Disturbance Rejection Control module
The second input terminal, lock the input terminal connection AC network of phase module, lock the output terminal connection sinusoid fiducial ripple generation of phase module
The input terminal of module, the first input end of the output terminal connection multiplication module of sinusoid fiducial ripple generation module, multiplication module
Output terminal connect the first input end of the second linear active disturbance rejection control module, the second of the second linear active disturbance rejection control module be defeated
Enter end on input DC/AC inverter circuits in filter inductance input current, the output terminal of the second linear active disturbance rejection control module with
The input terminal connection of sinusoidal pulse width modulation module, sinusoidal pulse width modulation module output signal control in DC/AC inverter circuits four
The conducting and shut-off of power tube.
2. two-stage type photovoltaic inverter grid-connected control device as described in claim 1, it is characterised in that：Described first, second
Or third linear Active Disturbance Rejection Control module includes the first subtracter, the second subtracter, the 3rd subtracter, first adder, the
Two adders, first integrator, second integral device, proportionality coefficient module, the first control gain module, the second control gain mould
Block, the first coefficient module and the second coefficient module；
The first input end of first subtracter is the first input end of first, second or third linear active disturbance rejection control module；The
The first input end of three subtracters be first, second or third linear active disturbance rejection control module the second input terminal, first, second
Or the tracking signal of third linear Active Disturbance Rejection Control module input signal is input to the second input terminal of the first subtracter, first,
Second or third linear Active Disturbance Rejection Control module input signal tracking signal be input to simultaneously the 3rd subtracter second input
End, the output terminal of the 3rd subtracter connect the first coefficient module and the second coefficient module, the output terminal of the first coefficient module respectively
Connect the first input end of first adder, the input terminal of the output terminal connection second integral device of the second coefficient module, the second product
The output terminal of device is divided to connect the first input end of second adder and the second subtracter, the output terminal connection of second adder respectively
Second input terminal of first adder, the output terminal connection first integrator of first adder, the output terminal of first integrator connect
Connect the second input terminal of the first subtracter, the input terminal of the output terminal connection proportionality coefficient module of the first subtracter, proportionality coefficient
The output terminal of module connects the second input terminal of the second subtracter, output terminal connection the first control gain module of the second subtracter
Input terminal, first control gain module output terminal connection second control gain module input terminal, second control gain mould
Second input terminal of the output terminal connection second adder of block, the output terminal of the first control gain module as first, second or
The output terminal of third linear Active Disturbance Rejection Control module.
3. two-stage type photovoltaic inverter grid-connected control device as claimed in claim 2, it is characterised in that：The DC/DC conversion
Circuit includes：One end of storage capacitor, energy storage inductor, diode and photovoltaic power pipe, storage capacitor anode and energy storage inductor connects
The first output terminal of photovoltaic polar plate is connected on, the other end of energy storage inductor and the collector of the anode of diode and photovoltaic power pipe connect
It connects；The source electrode of photovoltaic power pipe, the cathode of storage capacitor are all connected with the second output terminal of photovoltaic polar plate.
4. two-stage type photovoltaic inverter grid-connected control device as claimed in claim 3, it is characterised in that：The DC/AC inversions
Circuit includes：Electric capacity of voltage regulation, the first power tube, the second power tube, the 3rd power tube, the 4th power tube, inversion inductor, filtered electrical
Appearance and filter inductance；The collector of the source electrode of first power tube and the second power tube connects, the source electrode and the 4th of the 3rd power tube
The collector connection of power tube, the positive ends of electric capacity of voltage regulation are connected with the collector of the first power tube, the 3rd power tube, and first
The collector of power tube and the 3rd power tube is also connected with the cathode of diode；The negative polarity end of electric capacity of voltage regulation connects the second power
Pipe, the source electrode of the 4th power tube, the second power tube, the collector of the 4th power tube connect the second output terminal of photovoltaic polar plate；It is inverse
Become the collector that inductance one end connects the first power tube；One end of the other end connection filter capacitor of inversion inductor and filter inductance
One end, the other end of filter capacitor connects the source electrode of the 4th power tube, the other end incoming transport power grid of filter inductance.
5. two-stage type photovoltaic inverter grid-connected control device as claimed in claim 4, it is characterised in that：The DC/AC inversions
Circuit further includes line reactance, and the other end of filter inductance passes through line reactance incoming transport power grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721662535.0U CN207442467U (en) | 2017-12-04 | 2017-12-04 | A kind of two-stage type photovoltaic inverter grid-connected control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721662535.0U CN207442467U (en) | 2017-12-04 | 2017-12-04 | A kind of two-stage type photovoltaic inverter grid-connected control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207442467U true CN207442467U (en) | 2018-06-01 |
Family
ID=62285754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721662535.0U Active CN207442467U (en) | 2017-12-04 | 2017-12-04 | A kind of two-stage type photovoltaic inverter grid-connected control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207442467U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769260A (en) * | 2017-12-04 | 2018-03-06 | 河南城建学院 | A kind of two-stage type photovoltaic inverter grid-connected control device |
| CN109066816A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of micro-grid connection control system can provide reactive power support |
| CN109066704A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of micro-grid connection control method based on Active Disturbance Rejection Control |
| CN109066817A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of light storage micro-grid system and reactive power support control method based on Active Disturbance Rejection Control |
-
2017
- 2017-12-04 CN CN201721662535.0U patent/CN207442467U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769260A (en) * | 2017-12-04 | 2018-03-06 | 河南城建学院 | A kind of two-stage type photovoltaic inverter grid-connected control device |
| CN107769260B (en) * | 2017-12-04 | 2024-03-22 | 河南城建学院 | Two-stage grid-connected control device for photovoltaic inverter |
| CN109066816A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of micro-grid connection control system can provide reactive power support |
| CN109066704A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of micro-grid connection control method based on Active Disturbance Rejection Control |
| CN109066817A (en) * | 2018-07-09 | 2018-12-21 | 中山大学 | A kind of light storage micro-grid system and reactive power support control method based on Active Disturbance Rejection Control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Fang et al. | A novel PV microinverter with coupled inductors and double-boost topology | |
| CN207442467U (en) | A kind of two-stage type photovoltaic inverter grid-connected control device | |
| Castilla et al. | Control design guidelines for single-phase grid-connected photovoltaic inverters with damped resonant harmonic compensators | |
| Castilla et al. | Linear current control scheme with series resonant harmonic compensator for single-phase grid-connected photovoltaic inverters | |
| CN108023352A (en) | Suppress the power grid high-frequency impedance remodeling device and method of distributed power generation resonance | |
| CN102723740B (en) | Stable MPPT (Maximum Power Point Tracking) control system and method of single-stage photovoltaic inverter | |
| CN105119319A (en) | Active filtering three-phase and four-wire system type photovoltaic grid-connected system and method | |
| Shen et al. | Transformer-less three-port grid-connected power converter for distribution power generation system with dual renewable energy sources | |
| CN102769291B (en) | Active power filter based on multiphase converter structure | |
| CN115051565A (en) | Bidirectional half-bridge direct-current converter grid-connected inverter and ripple wave control method | |
| Mariappan et al. | A novel single-stage solar inverter using hybrid active filter with power quality improvement | |
| CN205232057U (en) | Single -phase two -stage formula photovoltaic inverter | |
| Guo et al. | First-order and high-order repetitive control for single-phase grid-connected inverter | |
| CN201219199Y (en) | Full digital active electric power filtering controller | |
| CN103944186A (en) | Control device of three-phase photovoltaic grid-connected inverter | |
| CN113541196A (en) | Fractional order control method for single-phase LC type grid-connected inverter | |
| CN107769260A (en) | A kind of two-stage type photovoltaic inverter grid-connected control device | |
| Jiang et al. | Research on the comparison analyses of three‐phase discrete and integrated LC filters in three‐phase PV inverter | |
| CN115622424A (en) | Secondary ripple voltage suppression method for direct-current bus of two-stage three-level AC/DC converter | |
| Xiao et al. | A single-phase grid-connected PV inverter with improved grid-connected current | |
| Ming et al. | Power factor correction and harmonic elimination for LCL-filtered three-level photovoltaic inverter with inverter-side current control | |
| CN207530547U (en) | A kind of twin-stage photovoltaic power generation grid-connecting apparatus | |
| CN113872209A (en) | Single-phase photovoltaic grid-connected control method for eliminating direct-current bus voltage sampling ripple | |
| CN209517543U (en) | A kind of induction heating power of the all-digitized demodulator based on DSP | |
| CN107069820B (en) | Distributed renewable energy power generation grid-connected power fluctuation control system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |