CN107706946A - Single-phase solar photovoltaic power generation grid-connecting electricity generation system - Google Patents
Single-phase solar photovoltaic power generation grid-connecting electricity generation system Download PDFInfo
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- CN107706946A CN107706946A CN201711277644.5A CN201711277644A CN107706946A CN 107706946 A CN107706946 A CN 107706946A CN 201711277644 A CN201711277644 A CN 201711277644A CN 107706946 A CN107706946 A CN 107706946A
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- 230000005611 electricity Effects 0.000 title claims abstract description 47
- 238000010248 power generation Methods 0.000 title claims abstract description 27
- 238000001514 detection method Methods 0.000 claims description 31
- 238000013021 overheating Methods 0.000 claims description 14
- 238000005070 sampling Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 239000010703 silicon Substances 0.000 claims description 7
- 230000001629 suppression Effects 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000700 radioactive tracer Substances 0.000 claims description 2
- 238000013024 troubleshooting Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- H02J3/383—
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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
Abstract
The present invention discloses single-phase solar photovoltaic power generation grid-connecting electricity generation system, the DC current for absorbing solar energy and converting solar energy is converted to the alternating current for meeting national standard and grid-connected be transported in national grid is generated electricity by way of merging two or more grid systems, including photovoltaic harden structure, main circuit structure, national grid structure, auxiliary protection tracking structure, photovoltaic harden structure converts solar energy into electrical energy and is main circuit structure input direct-current electric current, main circuit structure is converted to the DC current boosting inversion of input the alternating current for meeting national standard, it is pushed to finally by transformer in national grid and is generated electricity by way of merging two or more grid systems and powered for users' carrier.The present invention is by setting auxiliary protection tracking structure to optimize grid-connected system; can accurately, it is appropriate, effectively handle the failure occurred inside main circuit structure or outer bound pair its influence; effectively increase the service life; ensure that grid-connected system reliablely and stablely works long hours; circuit is simple, performs simplicity.
Description
Technical field
The present invention relates to technical field of generating electricity by way of merging two or more grid systems, more particularly to single-phase solar photovoltaic power generation grid-connecting electricity generation system.
Background technology
With the adjustment of Structure of national economy and the increase of resident living power utility proportion, and traditional energy is increasingly deficient
Weary, the application of the new energy such as solar energy and wind energy is more and more extensive, and the generating scale of new energy also quickly rises.Wherein unidirectionally too
Positive energy photovoltaic power generation grid-connecting electricity generation system refers to, using photovoltaic harden structure collection solar energy, then converting solar energy
For electric energy and it is main circuit structure input direct-current electric current, is converted to by the main circuit structure inversion that boost and meets national standard
220V 50HZ alternating currents, finally push in national grid and generate electricity by way of merging two or more grid systems.Using solar energy power generating, it generates electricity certainly
The intrinsic randomness of body and intermittent feature, determining the large-scale development of solar power generation mode will necessarily adjust to power network
Peak and system safety operation bring strong influence, in order to ensure the stability of national grid, it usually needs be generating electricity by way of merging two or more grid systems
Auxiliary protection tracking structure is set in system, and to ensure circuit stability, nothing is delayed work for a long time.But existing grid-connected system hair
Electric cost is high, and efficiency is low, and circuit structure is complicated, and stability is low, and fault rate is high, BOOST DC voltage booster circuits and IGBT inverter bridges
The interference of circuit repeatedly starting and stopping and outer bound pair circuit is connect, grid-connected system is influenceed and continues normal work, serious curtailment is grid-connected
The service life of electricity generation system, system reliability are low.
Therefore, how to realize that a kind of circuit is simple, reasonable in design, to perform that simplicity, stability are high, use cost is low unidirectional
Solar photovoltaic power generation grid-connecting electricity generation system is technical problem urgently to be resolved hurrily in the industry.
The content of the invention
The main object of the present invention is to provide a kind of single-phase solar photovoltaic power generation grid-connecting electricity generation system, it is intended to a kind of circuit
Simply, it is reasonable in design, perform the unidirectional solar photovoltaic power generation grid-connecting electricity generation system that simplicity, stability are high, use cost is low.
The present invention proposes single-phase solar photovoltaic power generation grid-connecting electricity generation system, absorbs solar energy and converts solar energy straight
Stream electric current is converted to the alternating current for meeting national standard and grid-connected be transported in national grid is generated electricity by way of merging two or more grid systems, including will too
Sun can be converted into electric energy and for circuit input direct-current electric current photovoltaic harden structure, main circuit structure, national grid structure,
National grid structure includes national grid, user's carrier；Main circuit structure includes direct-flow input circuit, connected with direct-flow input circuit
The boost inverter circuit connect, the exchange output circuit being connected with boost inverter circuit；Direct-flow input circuit include prevent reversed circuit,
D secondary rectification circuits, C1 filter circuits；Boost inverter circuit include BOOST DC voltage booster circuits, IGBT inversions bridgt circuit,
Lc circuit；The output end of the input and lc circuit that exchange output circuit connects, and photovoltaic harden structure is by the sun of absorption
Electric energy can be converted into and it is main circuit structure input direct-current electric current, it is whole that DC current is loaded into D bis- times after preventing reversed circuit
Rectification is carried out on current circuit, then national grid is boosted to by BOOST DC voltage booster circuits after being filtered by C1 filter circuits
Voltage needed for structure, the DC current after the boosting that IGBT inversions bridgt circuit inputs input are delivered in lc circuit, and
220V 50HZ alternating currents are converted to by lc circuit, and the alternating current for input being inputted finally by exchange output circuit circulates
Cross transformer be pushed in national grid generate electricity by way of merging two or more grid systems and for users' carrier power；Single-phase solar photovoltaic power generation grid-connecting hair
Electric system also includes having auxiliary, protection, the auxiliary protection tracking structure of tracer action, auxiliary protection tracking to main circuit structure
Structure is worked by a means of power so that it is guaranteed that grid-connected system is errorless works long hours.
Preferably, auxiliary protection tracking structure includes being connected on direct-flow input circuit and protecting direct-flow input circuit
The input protection tracking module of shield tracking, it is connected on exchange output circuit and exchange output circuit is carried out protecting the defeated of tracking
Go out and protect tracking module, include drive control boost inverter circuit work main control module, main control module with input protection with
Track module connects with output protection tracking module, U1 STM32F103 nucleus module of the main control module including generation carrier signal,
Produce the U2 STM32F103 nucleus modules of protection signal.
Preferably, U1 STM32F103 nucleus modules are carried out with U2 STM32F103 nucleus modules by TJA1050 interfaces
Chip cascade, TJA1050 interfaces are arranged to the interface between control area network C AN protocol controllers and physical bus.
Preferably, U1 STM32F103 nucleus modules produce pulse signal and SPWM ripples direct current voltage to be boosted
And it is converted into the AC current-voltage for meeting national standard.
Preferably, auxiliary protection tracking structure is connected with U2 STM32F103 nucleus modules, U2 STM32F103 core moulds
The data that block detects auxiliary protection tracking structure carry out analyzing judgement and by TJA1050 interfaces to U1 STM32F103 cores
Core module sends protection signal.
Preferably, auxiliary protection tracking structure also includes silicon light sampling electroplax, the of detection contrast is sampled to electric current
One current detection module, M engines.
Preferably, input protection tracking module includes lightning protection module, input over-and under-voltage overheating detection module, input
Fault processing module, lightning protection module, input over-and under-voltage overheating detection module and input fault processing module connect respectively
In on U2 STM32F103 nucleus modules；Output protection tracking module includes noise suppression module, phase locked track module, exported
Press under-voltage overheating detection module, the second current detection module, A/D sampling modules, output short circuit protection module, output troubleshooting
Module, noise suppression module, phase locked track module, output overvoltage is under-voltage overheating detection module, the second current detection module, A/D
Sampling module, output short circuit protection module, output fault processing module are connected on U2 STM32F103 nucleus modules.
Preferably, auxiliary protection tracking structure is connected by wifi with mobile terminal, and mobile terminal is arranged to mobile phone, flat board
Computer.
The single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention, absorb solar energy and the direct current for converting solar energy
Circulation is changed to the alternating current for meeting national standard and grid-connected be transported in national grid is generated electricity by way of merging two or more grid systems, including solar energy
Harden structure, main circuit structure, national grid structure, auxiliary protection tracking structure are lied prostrate, photovoltaic harden structure can gather the sun
Can, then convert solar energy into electrical energy and be main circuit structure input direct-current electric current, main circuit structure is by the direct current of input
Stream boosts to 310V and the alternating current for meeting national standard is converted to by IGBT inversions bridgt circuit and lc circuit, finally leads to
Cross transformer be pushed in national grid generate electricity by way of merging two or more grid systems and for users' carrier power.The present invention by set auxiliary protection with
Track structure optimizes grid-connected system, can accurately, it is appropriate, effectively handle the failure or outer occurred inside main circuit structure
Its influence of bound pair, the service life of grid-connected system is effectively extended, reduce the use cost of grid-connected system, really
Protect grid-connected system reliablely and stablely to work long hours, circuit is simple, performs simplicity, easy to spread.
Brief description of the drawings
Fig. 1 is that the circuit frame structure of an embodiment of the single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention is shown
It is intended to；
Fig. 2 is the electrical block diagram of an embodiment of the single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
Referring to figs. 1 to Fig. 2, an embodiment of the single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention is proposed, is
The direct current that system absorbs solar energy and converts solar energy is converted to the alternating current for meeting national standard and grid-connected is output to country
Generated electricity by way of merging two or more grid systems in power network.
Single-phase solar photovoltaic power generation grid-connecting electricity generation system includes energy resource collecting structure, main circuit structure, national grid knot
Structure, auxiliary protection tracking structure.
Energy resource collecting structure is photovoltaic harden structure, and the input of its output end and main circuit structure connects, the sun
Can photovoltaic harden structure can gather solar energy, then convert solar energy into electrical energy and be main circuit structure input direct-current electric current.
Main circuit structure includes direct-flow input circuit, boost inverter circuit, exchange output circuit.Direct-flow input circuit includes
Prevent reversed circuit, D secondary rectification circuits, C1 filter circuits, wherein the output end of photovoltaic harden structure is with preventing reversed circuit
Input connection, prevent reversed circuit output end be connected with the input of D secondary rectification circuits, D secondary rectification circuits it is defeated
Go out end to be connected with the input of C1 filter circuits.
Boost inverter circuit includes BOOST DC voltage booster circuits, IGBT inversions bridgt circuit, lc circuit, and wherein BOOST is straight
The input of stream booster circuit is connected with the output end of C1 filter circuits, and the output end and IGBT of BOOST DC voltage booster circuits are inverse
Become the input connection of bridgt circuit, the output end of IGBT inversion bridgt circuits and the input of lc circuit connect.
The output end of the input and lc circuit that exchange output circuit connects, and exchange output circuit connects with national grid structure
Connect, national grid structure includes national grid, user's carrier.Exchange output circuit can be pushed to alternating current by transformer
In national grid.
The single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention, after solar irradiation is mapped to photovoltaic harden structure,
The solar energy of absorption is converted into electric energy and is main circuit structure input direct-current electric current by photovoltaic harden structure, and DC current passes through
Cross after preventing reversed circuit and be loaded into D secondary rectification circuits and carry out rectification, then by BOOST after being filtered by C1 filter circuits
DC voltage booster circuit boosts to voltage needed for national grid structure, after the boosting that IGBT inversions bridgt circuit inputs input
DC current is delivered into lc circuit, and is converted to 220V 50HZ alternating currents by lc circuit, finally by exchange output electricity
The alternating current that input inputs is pushed in national grid by road by transformer to generate electricity by way of merging two or more grid systems and is supplied for users' carrier
Electricity.Wherein, grid-connected system can reliablely and stablely long-time work under the auxiliary of auxiliary protection tracking structure, protection, tracking
Make, and the setting of auxiliary protection tracking structure effectively extends the service life of grid-connected system, reduce to generate electricity by way of merging two or more grid systems and be
The use cost of system, simple in construction, reasonable in design, grid-connected system feasibility is high.
Auxiliary protection tracking structure includes being connected on direct-flow input circuit and carrying out protection tracking to direct-flow input circuit
Input protection tracking module, be connected to exchange output circuit on and to exchange output circuit carry out protect tracking output protection
Tracking module, include the main control module of drive control boost inverter circuit work, main control module and input protection tracking module
Connected with output protection tracking module, main control module includes producing the U1 STM32F103 nucleus modules of carrier signal, produces guarantor
The U2 STM32F103 nucleus modules of signal are protected, U1 STM32F103 nucleus modules pass through with U2 STM32F103 nucleus modules
TJA1050 interfaces carry out chip cascade, and TJA1050 interfaces are between control area network C AN protocol controllers and physical bus
Interface, TJA1050 interfaces can provide differential sending performance for bus, differential receptivity is provided for CAN protocol controller,
So that high-speed traffic between U1 STM32F103 nucleus modules and U2 STM32F103 nucleus modules.U1 STM32F103 core moulds
Block mainly produces pulse signal and SPWM ripples, to the alternating current that meets national standard that direct current voltage is boosted and is converted into
Voltage is flowed, U2 STM32F103 nucleus modules have the function that protection tracking to whole grid-connected system, for whole grid-connected hair
Electric system escorts, to ensure that it reliablely and stablely works long hours.
Auxiliary protection tracking structure also includes silicon light sampling electroplax, electric current and solar energy to the sampling electroplax output of silicon light
The electric current of photovoltaic panel structure output be sampled detection contrast the first current detection module, M engines, silicon light sampling electroplax with
M engines are connected, and silicon light sampling electroplax and M engines are connected with the first current detection module, the first current detection module and U2
STM32F103 nucleus modules connect.Electric current and solar energy photovoltaic panel of first current detection module to the sampling electroplax output of silicon light
The electric current of structure output, which is sampled detection and contrasts and carry out matching, reaches MPPT maximum power tracings.
The present invention mainly passes through voltage boosting pulse isolation drive BOOST DC boostings caused by U1 STM32F103 nucleus modules
Circuit works, so as to be to meet the direct current of national standard by the DC current boosting of BOOST DC voltage booster circuits input input
Electric current is simultaneously delivered in IGBT inversions bridgt circuit, lc circuit, and the voltage of the DC current after the present embodiment boosting is 310V.Together
When, U1 STM32F103 nucleus modules can produce SPWM ripples symmetrical above and below and effective electricity is carried out to RS2010 isolation drives module
Turn optically isolated and RS2010 isolation drives module is exported enough voltage to drive IGBT inversion bridgt circuits defeated to lc circuit
Enter enough power so that the DC current after boosting is converted into 220V 50HZ alternating current after lc circuit.
Input protection tracking module includes lightning protection module, input over-and under-voltage overheating detection module, at input fault
Module is managed, lightning protection module, input over-and under-voltage overheating detection module and input fault processing module are connected to U2
On STM32F103 nucleus modules, lightning protection module, input over-and under-voltage overheating detection module and input fault processing module are real
When monitor the current situation of direct-flow input circuit, and on the data feedback detected to U2 STM32F103 nucleus modules, U2
STM32F103 nucleus modules are handled the data received, judge whether to need to push away to U1 STM32F103 nucleus modules
Protection signal is sent, need to such as protect grid-connected system, U2 STM32F103 nucleus modules are by TJA1050 interfaces to U1
STM32F103 nucleus modules send protection signal so that U1 STM32F103 nucleus modules stop producing carrier signal, with protection
Main circuit structure.
Output protection tracking module includes noise suppression module, phase locked track module, output overvoltage is under-voltage overheating detection mould
Block, the second current detection module, A/D sampling modules, output short circuit protection module, output fault processing module, noise suppression module
Block, phase locked track module, output overvoltage is under-voltage overheating detection module, the second current detection module, A/D sampling modules, output are short
Road protection module, output fault processing module are connected on U2 STM32F103 nucleus modules, principal security exchange output
The alternating current of circuit output is consistent with phase, the frequency of the alternating current of national grid, and protects grid-connected system not by the external world
With the influence of interior change.
Second current detection module to exchange output circuit in electric current be monitored, and with national grid 220V 50HZ
Voltage contrasted, coordinate phase locked track module, U2 STM32F103 nucleus modules judge exchange output circuit electric current electricity
Whether pressure is consistent with phase current voltage.It is pushed in national grid and is generated electricity by way of merging two or more grid systems by transformer if consistent, finally
It is delivered to user's carrier；If inconsistent, U2 STM32F103 nucleus modules are by TJA1050 interfaces to U1 STM32F103 cores
Core module sends protection signal, fine setting that U1 STM32F103 nucleus modules enter in line frequency to the pulse signal of output and right
SPWM ripples are modified, and the AC current-voltage for meeting national standard so that direct current voltage boosts and is converted into, are finally led to
Transformer is crossed to push in national grid.
It is overheating detection module that noise suppression module, output overvoltage are under-voltage, A/D sampling modules, output short circuit protection module, defeated
The processing module that is out of order is detected in real time to exchange output circuit, and the data feedback detected to U2 STM32F103 cores
On core module, U2 STM32F103 nucleus modules are handled the data received, judge whether to need to U1
STM32F103 nucleus modules push protection signal, need to such as protect grid-connected system, U2 STM32F103 nucleus modules pass through
TJA1050 interfaces send protection signal to U1 STM32F103 nucleus modules so that U1 STM32F103 nucleus modules stop production
Raw carrier signal, to protect main circuit structure.The single-phase solar photovoltaic power generation grid-connecting electricity generation system of the present invention, circuit structure letter
Single, circuit stability is reliable, is connected using auxiliary protection tracking structure with main circuit structure, and auxiliary protection tracking structure is used to gather
Power information is simultaneously analyzed and processed to ensure that grid-connected system reliablely and stablely works long hours by main control module.
In addition, auxiliary protection tracking structure is connected by wifi with mobile terminal, mobile terminal may be configured as mobile phone, flat board
Computer, the electricity generation situation and Current Voltage situation of grid-connected system, timeliness are checked by mobile phone or tablet personal computer monitoring in real time
Height, it is convenient and practical.Auxiliary protection tracking structure is worked by a means of power so that it is guaranteed that the errorless length of grid-connected system
Time service.
The present invention, can accurately, appropriately, effectively by setting auxiliary protection tracking structure to optimize grid-connected system
The failure occurred inside main circuit structure or outer bound pair its influence are handled, effectively extend grid-connected system uses the longevity
Life, reduce the use cost of grid-connected system, it is ensured that grid-connected system reliablely and stablely works long hours, circuit letter
It is single, simplicity is performed, it is easy to spread.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, every utilization
The equivalent structure transformation that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (8)
1. single-phase solar photovoltaic power generation grid-connecting electricity generation system, the DC current for absorbing solar energy and converting solar energy is converted to
Meet the alternating current of national standard and grid-connected be transported in national grid is generated electricity by way of merging two or more grid systems, it is characterised in that including will too
Sun can be converted into electric energy and for circuit input direct-current electric current photovoltaic harden structure, main circuit structure, national grid structure,
The national grid structure includes national grid, user's carrier；The main circuit structure includes direct-flow input circuit, defeated with direct current
Enter boost inverter circuit, the exchange output circuit being connected with boost inverter circuit of circuit connection；The direct-flow input circuit bag
Include anti-reversed circuit, D secondary rectification circuits, C1 filter circuits；The boost inverter circuit include BOOST DC voltage booster circuits,
IGBT inversions bridgt circuit, lc circuit；The input of the exchange output circuit is connected with the output end of the lc circuit, described
The solar energy of absorption is converted into electric energy and is the main circuit structure input direct-current electric current by photovoltaic harden structure, direct current
Stream is loaded into the D secondary rectification circuits after the anti-reversed circuit and carries out rectification, then passes through the C1 filter circuits
Voltage, the IGBT inversions as needed for the BOOST DC voltage booster circuits boost to the national grid structure after being filtered
DC current after the boosting that bridgt circuit inputs input is delivered in the lc circuit, and is converted to by the lc circuit
220V 50HZ alternating currents, the alternating current that input inputs is pushed away by transformer finally by the exchange output circuit
It is sent in the national grid and generates electricity by way of merging two or more grid systems and powered for user's carrier；The single-phase solar photovoltaic power generation grid-connecting generates electricity
System also includes having auxiliary, protection, the auxiliary protection tracking structure of tracer action to the main circuit structure, and the auxiliary is protected
Shield tracking structure is worked by a means of power so that it is guaranteed that grid-connected system is errorless works long hours.
2. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 1, it is characterised in that the auxiliary is protected
Shield tracking structure includes being connected on the direct-flow input circuit and to the direct-flow input circuit protect the input of tracking
Protection tracking module, it is connected on the exchange output circuit and protect the output of tracking to protect the exchange output circuit
Protect tracking module, include described in drive control boost inverter circuit work main control module, the main control module with it is described defeated
Enter to protect tracking module to be connected with the output protection tracking module, the main control module includes the U1 for producing carrier signal
STM32F103 nucleus modules, the U2 STM32F103 nucleus modules for producing protection signal.
3. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 2, it is characterised in that the U1
STM32F103 nucleus modules carry out chip cascade with the U2 STM32F103 nucleus modules by TJA1050 interfaces, described
TJA1050 interfaces are arranged to the interface between control area network C AN protocol controllers and physical bus.
4. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 3, it is characterised in that the U1
STM32F103 nucleus modules produce pulse signal and SPWM ripples direct current voltage to boost and is converted into meeting national mark
Accurate AC current-voltage.
5. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 4, it is characterised in that the auxiliary is protected
Shield tracking structure is connected with the U2 STM32F103 nucleus modules, and the U2 STM32F103 nucleus modules protect the auxiliary
The data that detect of shield tracking structure analyze judgement and by the TJA1050 interfaces to the U1 STM32F103 cores
Module sends protection signal.
6. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 5, it is characterised in that the auxiliary is protected
Shield tracking structure also include silicon light sampling electroplax, the first current detection module of detection contrast is sampled to electric current, M starts
Machine.
7. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 6, it is characterised in that the input is protected
Protecting tracking module includes lightning protection module, input over-and under-voltage overheating detection module, input fault processing module, the lightning protection
Protection module, the input over-and under-voltage overheating detection module and the input fault processing module are connected to the U2
On STM32F103 nucleus modules；The output protection tracking module includes noise suppression module, phase locked track module, exported
Press under-voltage overheating detection module, the second current detection module, A/D sampling modules, output short circuit protection module, output troubleshooting
Module, the noise suppression module, the phase locked track module, the output overvoltage is under-voltage overheating detection module, described second
Current detection module, the A/D sampling modules, the output short circuit protection module, the output fault processing module connect respectively
It is connected on the U2 STM32F103 nucleus modules.
8. single-phase solar photovoltaic power generation grid-connecting electricity generation system according to claim 7, it is characterised in that the auxiliary is protected
Shield tracking structure is connected by wifi with mobile terminal, and the mobile terminal is arranged to mobile phone, tablet personal computer.
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| CN103138291A (en) * | 2013-03-06 | 2013-06-05 | 杨勇 | Wind power generation intelligent single-phase grid-connection controller |
| CN104270022A (en) * | 2014-09-30 | 2015-01-07 | 马鞍山市安工大工业技术研究院有限公司 | Photovoltaic grid connected inversion circuit, switch control circuit and control method |
| CN104796065A (en) * | 2015-05-04 | 2015-07-22 | 苏州常实工业设备有限公司 | Control circuit of wind-solar grid-connected power generation system on expressway |
| CN207442469U (en) * | 2017-12-06 | 2018-06-01 | 中山市柏顺照明电器有限公司 | Single-phase solar photovoltaic power generation grid-connecting electricity generation system |
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