CN109066778A - A kind of convertor circuit, current transformer and photovoltaic system - Google Patents
A kind of convertor circuit, current transformer and photovoltaic system Download PDFInfo
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- CN109066778A CN109066778A CN201810914205.9A CN201810914205A CN109066778A CN 109066778 A CN109066778 A CN 109066778A CN 201810914205 A CN201810914205 A CN 201810914205A CN 109066778 A CN109066778 A CN 109066778A
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- 238000010248 power generation Methods 0.000 abstract description 10
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- 239000004065 semiconductor Substances 0.000 abstract description 2
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
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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
This application involves a kind of convertor circuit, current transformer and photovoltaic systems, belong to photovoltaic Semiconductor Converting Technology field.The application convertor circuit, comprising: confluence circuit and inverter circuit；The input terminal of the confluence circuit connects solar panel；The output end of the confluence circuit is connect with the input terminal of the inverter circuit；The output end of the inverter circuit connects power grid.Convertor circuit provided by the present application is integrated with confluence circuit and inverter circuit, therefore, when convertor circuit provided by the present application is applied to photovoltaic generating system, it can simplify the installation of photovoltaic generating system, it realizes and reduces component installation steps, reduces the complexity of installation operation, and then installation cost can be saved, also can effectively solve complicated for operation because installing, lead to faulty operation occur, and then causes system power generation abnormal or even lead to the problem of danger.
Description
Technical field
The application belongs to photovoltaic Semiconductor Converting Technology field, and in particular to a kind of convertor circuit, current transformer and photovoltaic system.
Background technique
Solar energy is increasingly taken seriously as a kind of clean energy resource, and the most significant embody is that photovoltaic power generation is sent out energetically
Exhibition.Photovoltaic generating system basic composition is at present: solar panel, header box, inverter.But under above-mentioned system structure,
There are the following problems for the installation implementation of photovoltaic generating system: photovoltaic generating system installation steps are more, and installation is complicated for operation, cause
Construction cost is larger；Simultaneously as installation is complicated for operation, it is also easy to appear faulty operation, and then causes system power generation abnormal very
It is dangerous to generating.
Summary of the invention
In view of this, the application provides a kind of convertor circuit, current transformer and photovoltaic system, to solve to a certain extent
The problem that the photovoltaic generating system installation steps of the relevant technologies are more, installation is complicated for operation.
In order to achieve the above object, the application adopts the following technical scheme that
In a first aspect,
This application provides a kind of convertor circuits, comprising:
Converge circuit and inverter circuit；
The input terminal of the confluence circuit connects solar panel；
The output end of the confluence circuit is connect with the input terminal of the inverter circuit；
The output end of the inverter circuit connects power grid.
Further, the confluence circuit includes:
DC filter is connect with the solar panel；
D.C. contactor, one end connect the output end of the DC filter, and the other end connects the defeated of the inverter circuit
Enter end.
Further, the D.C. contactor is two；
One D.C. contactor is separately connected the cathode output end and the inverter circuit of the DC filter
Electrode input end；
Another described D.C. contactor is separately connected the cathode output end and the inverter circuit of the DC filter
Negative input.
Further, the inverter circuit includes:
DC/AC converter, input terminal are connect with the output end of the confluence circuit, and output end connects the power grid.
Further, the convertor circuit further include:
Back flow prevention element, the back flow prevention element input terminal are connect with the negative input of the DC filter.
Further, the back flow prevention element includes: diode.
Further, the convertor circuit further include:
Voltage detection unit, including the first test side and the second test side；
First is provided on the route of the DC filter electrode input end connection solar panel cathode output end
First test side of voltage detecting point, the voltage detection unit connects the first voltage test point；
Second voltage is provided on the route of the back flow prevention element output end connection solar panel cathode output end
Second test side of test point, the voltage detection unit connects the second voltage test point.
Further, the confluence circuit further include:
Fuse is connected between the DC filter and the solar panel.
Further, the line of the back flow prevention element connection solar panel cathode output end is arranged in the fuse
On the road.
Further, the second voltage test point is arranged between the back flow prevention element and the fuse.
Further, the convertor circuit further include:
Controller is connect with the voltage detection unit and the D.C. contactor respectively, for receiving the voltage inspection
The detection voltage that unit is sent is surveyed, and when the detection voltage meets preset condition, controls the D.C. contactor and be attracted.
Further, the preset condition includes predetermined threshold value voltage.
Second aspect,
This application provides a kind of current transformers, comprising: convertor circuit as described in any one of the above embodiments.
The third aspect,
This application provides a kind of photovoltaic generating systems, comprising:
Solar panel, and
Current transformer as described above；
The solar panel is electrically connected with the current transformer.
The application use above technical scheme, at least have it is following the utility model has the advantages that
Convertor circuit provided by the present application is integrated with confluence circuit and inverter circuit, therefore, when unsteady flow provided by the present application
When circuit is applied to photovoltaic generating system, the installation of photovoltaic generating system can simplify, realize and reduce component installation steps, reduce
The complexity of operation is installed, and then installation cost can be saved, also can effectively solve because installation is complicated for operation, cause to occur
Faulty operation, and then cause system power generation abnormal or even lead to the problem of danger.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of application for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram for the convertor circuit that the application one embodiment provides；
Fig. 2 is the structural schematic diagram for the convertor circuit that another embodiment of the application provides；
Fig. 3 is the structural schematic diagram for the convertor circuit that another embodiment of the application provides；
Fig. 4 is the structural schematic diagram for the current transformer that the application one embodiment provides；
Fig. 5 is the structural schematic diagram for the photovoltaic generating system that the application one embodiment provides；
In figure,
1- convertor circuit；
11- confluence circuit；12- inverter circuit；
101- DC filter；102-DC/AC converter；103- back flow prevention element；104- voltage detection unit；105-
One voltage detecting point；106- second voltage test point；107- controller；
2- solar panel；
201- solar panel input terminal；
3- power grid；
4- current transformer；
5- photovoltaic generating system.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, the technical solution of the application will be carried out below
Detailed description.Obviously, described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the application is protected.
Fig. 1 is the structural schematic diagram for the convertor circuit that the application one embodiment provides；As shown in Figure 1, the unsteady flow electricity
Road 1, comprising:
Converge circuit 11 and inverter circuit 12；
The input terminal of the confluence circuit 11 connects solar panel；
The output end of the confluence circuit 11 is connect with the input terminal of the inverter circuit 12；
The output end of the inverter circuit 12 connects power grid.
It is understood that above-described embodiment scheme is in a particular application, the input terminal of the confluence circuit 11 be used for
Multiple solar panel connections, each solar panel are converged by the direct current that photoelectric conversion obtains, and defeated
It send to the inverter circuit 12, the direct current that the inverter circuit 12 forms confluence carries out inversion conversion, exports and hands over to power grid
Galvanic electricity.
The convertor circuit 1 that above-described embodiment scheme provides is integrated with confluence circuit 11 and inverter circuit 12, therefore, specific
In, when the convertor circuit 1 be applied to photovoltaic generating system when, can simplify the installation of photovoltaic generating system, it can be achieved that
The complexity for reducing component installation steps, reducing installation operation, and then save installation cost.
Simultaneously as above-described embodiment scheme can reduce the complexity of installation operation, it is thus possible to efficiently reduce peace
The mistake of operation is filled, and then photovoltaic generating system can be effectively prevented from because installation operating mistake causes appearance power generation is abnormal even to produce
Raw dangerous problem.
Fig. 2 is the structural schematic diagram for the convertor circuit that another embodiment of the application provides；As shown in Fig. 2, in the change
In current circuit 1, the confluence circuit 11 includes:
DC filter 101, connect with solar panel；
D.C. contactor (K1, K2), one end connect the output end of the DC filter 101, and other end connection is described inverse
The input terminal on power transformation road 12.
As shown in Fig. 2, convertor circuit 1 described above is in a particular application, it can be real by solar panel input terminal 201
The connection of the existing convertor circuit 1 and multiple solar panels.In practical applications, solar panel input terminal 201 can
To use terminal block.
In the specific embodiment scheme of confluence circuit 11 described above, the function of each device is as follows:
DC filter 101, for eliminating the interference of DC side generation, the interference effect for avoiding DC side from generating to the sun
The performance of energy solar panel and service life also can avoid the interference that DC side generates and radiated by solar panel to space；Simultaneously
Aerial drainage can also be carried out when by being struck by lightning by DC filter 101, and then realizes lightning protection function.
D.C. contactor (K1, K2) can realize following function using D.C. contactor: for example, can make solar panel
Open circuit is formed between power grid, and solar panel access power grid is controlled；For another example, pass through the disconnected of D.C. contactor
It opens, it can be achieved that carrying out openning circuit voltage detection to solar panel.
In one embodiment, as shown in Fig. 2, the D.C. contactor is two,
One D.C. contactor K1 is separately connected the cathode output end and inversion electricity of the DC filter 101
The electrode input end on road 12；
Another described D.C. contactor K2 be separately connected the DC filter 101 cathode output end and the inversion
The negative input of circuit 12.
It, can by the disconnection of two D.C. contactors in the convertor circuit 1 by above-mentioned two D.C. contactor
Realize that solar panel completely disengages power grid.
As shown in Fig. 2, the inverter circuit 12 includes:
DC/AC converter 102, input terminal are connect with the output end of the confluence circuit 11, and output end connects power grid 3.
It is understood that DC/AC converter 102 is used for the direct current for obtaining solar panel by photoelectric conversion
Alternating current is converted to be exported.
As shown in Fig. 2, because the other end of the D.C. contactor (K1, K2) connects the input terminal of the inverter circuit 12,
So the other end of the D.C. contactor (K1, K2) should be the output end of the confluence circuit 11, thus it is shown in Fig. 2
In the convertor circuit 1, the input terminal of DC/AC converter 102 is connect with the other end of the D.C. contactor (K1, K2).
In one embodiment, as shown in Fig. 2, the convertor circuit 1 further include:
Back flow prevention element 103, the negative input of 103 input terminal of back flow prevention element and the DC filter 101
Connection.
It is understood that in practical applications, as shown in Fig. 2, the output end and solar battery of back flow prevention element 103
The cathode of plate input terminal 201 forms electrical connection, when the convertor circuit 1 is connect with solar panel, forms counterflow-preventing member
The cathode of solar panel is arranged in part 103.
In the related technology, back flow prevention element 103 is arranged in the anode of solar panel, although can play prevents cathode
Electric current flows backward, but in the practical application of solar panel, solar panel has parasitic capacitance over the ground, so that the sun
There are pressure difference between the cathode and ground of energy solar panel, the anode that solar panel is arranged in back flow prevention element 103 cannot be prevented
Electric current is generated between the cathode and ground of solar panel, the electric current generated between cathode and ground may will affect solar battery
The service life of board group string, it could even be possible to it is on fire, come to personnel equipment's safety belt dangerous.
It is above-mentioned by the application compared with the anode of solar panel is arranged in back flow prevention element 103 by the relevant technologies
Example scheme forms the cathode that solar panel is arranged in back flow prevention element 103, can prevent from generating electricity between cathode and ground
Stream, and then avoid to influence the service life of solar battery board group string, it could even be possible to it is on fire, it endangers to personnel equipment's safety belt
The generation of the problems such as dangerous.
The above embodiments of the present application scheme forms back flow prevention element 103 and the cathode of solar panel is arranged in, can be with
Realize photovoltaic reverse connecting protection, when can effectively solve related personnel's site operation, for example, because execution conditions difference due to occurs operation mistake
Accidentally, the problem of causing reversal connection to be broken down.
In a particular application, the back flow prevention element 103 can have the electronics of one-way conduction ability using diode etc.
Element, for example, the back flow prevention element 103 includes: in the convertor circuit 1 as shown in Figure 2
Diode D1.
In Fig. 2, diode D1 anode connects the negative input of the DC filter 101, diode D1 forward conduction
For normal photovoltaic power generation；Diode D1, which reversely ends, forms electric current between solar panel cathode and ground for blocking.
In one embodiment, as shown in Fig. 2, the convertor circuit 1 further include:
Voltage detection unit 104, including the first test side and the second test side；
The is provided on the route of 101 electrode input end of DC filter connection solar panel cathode output end
First test side of one voltage detecting point 105, the voltage detection unit 104 connects the first voltage test point 105；
The second electricity is provided on the route of 103 output end of the back flow prevention element connection solar panel cathode output end
Test point 106 is pressed, the second test side of the voltage detection unit 104 connects the second voltage test point 106.
It is understood that above scheme is that confluence circuit 11 provided by the present application and inverter circuit 12 are integrated to form unsteady flow
The scheme of openning circuit voltage detection is carried out when circuit 1.The convertor circuit 1 of the application is realized will confluence circuit 11 and inverter circuit
12 it is integrated, but converge circuit 11 and when inverter circuit 12 is integrated to form convertor circuit 1, if open circuit voltage signal sample it is improper,
It will occur detect solar panel voltage-to-ground, to influence the control to solar panel power generation output.
In a particular application, as shown in Fig. 2, setting for first voltage test point 105 and second voltage test point 106
It sets, the anode that the electrode input end connection solar panel of DC filter 101 is arranged in first voltage test point 105 is defeated
On the route of outlet, second voltage test point 106 is arranged in the cathode side of diode D1, forms appropriate sampled point,
After the convertor circuit 1 is connect with solar panel, it can accurately detect the open-circuit voltage of solar panel, can keep away
Exempt from influence of the DC filter 101 to solar panel openning circuit voltage detection.
As shown in Fig. 2, in one embodiment, the confluence circuit 11 further include:
Fuse (FU1, FU2 ... FUn, n are the integer greater than 1), is connected to the DC filter 101 and solar-electricity
Between the plate of pond, and fuse and solar panel correspond；
It is understood that fuse (FU1, FU2 ... FUn) is during solar panel DC generation, direct current
When flowing through load, fuse blows realize overload protection.It is defeated with the cathode of solar panel that fuse setting is illustrated in Fig. 2
The case where outlet connects, it should be pointed out that in a particular application, the anode with solar panel can also be arranged in fuse
Output end connection.
In one embodiment, as shown in Fig. 2, the fuse (FU1, FU2 ... FUn) is arranged in the back flow prevention element
On the route of 103 connection solar panel cathode output ends.
In solar panel actual power, there is parasitic capacitance in solar panel, solar panel over the ground
Pressure difference is formed between cathode and ground, if pressure difference is bigger, it is possible to which reverse breakdown back flow prevention element 103 makes back flow prevention element 103
Become access, such as backward diode D1, diode D1 is made to become access.In this case, the adverse current that diode D1 rises
Protective effect becomes in vain, and then may influence the service life of solar battery board group string, it could even be possible to it is on fire, give personnel equipment
Safety belt comes dangerous.
By the above embodiments of the present application scheme, fuse (FU1, FU2 ... FUn) can be formed with back flow prevention element 103 matches
It closes.Adverse current overload protective function can be played by the fusing of fuse (FU1, FU2 ... FUn), and then also to back flow prevention element
103 form protection.
In one embodiment, as shown in Fig. 2, the second voltage test point 106 is arranged in the back flow prevention element 103
Between the fuse (FU1, FU2 ... FUn).
In above-described embodiment scheme, the setting of second voltage test point 106 is in the back flow prevention element 103 and the fusing
Between device (FU1, FU2 ... FUn), when carrying out openning circuit voltage detection, the fuse is also formed to voltage detection unit 104
Overload protection, if detection electric current is excessively high, fuse blows realize open circuit detection protection.
Fig. 3 is the structural schematic diagram for the convertor circuit that another embodiment of the application provides；As shown in figure 3, the unsteady flow
Circuit 1, further includes:
Controller 107 is connect, for connecing respectively with the voltage detection unit 104 and the D.C. contactor (K1, K2)
The detection voltage that the voltage detection unit 104 is sent is received, and when the detection voltage meets preset condition, controlled described straight
Contactor (K1, K2) is flowed to be attracted.
It is understood that before detection, the D.C. contactor (K1, K2) is to disconnect, only when detection voltage is full
When sufficient preset condition, the D.C. contactor (K1, K2) is just attracted, and solar panel is accessed, and realizes photovoltaic power generation.
In one embodiment, the preset condition includes predetermined threshold value voltage.For example, the D.C. contactor (K1,
When K2) disconnecting, solar panel forms open circuit, and voltage detection unit 104 detects the open-circuit voltage of solar panel, works as inspection
When the open-circuit voltage of survey meets predetermined threshold value voltage, solar panel is accessed, realizes photovoltaic power generation, threshold value electricity is set by this
Voltage-controlled solar panel access power generation processed is, it can be achieved that generating efficiency maximizes.
Fig. 4 is the structural schematic diagram for the current transformer that the application one embodiment provides；As shown in figure 4, the current transformer 4 wraps
It includes:
Convertor circuit 1 as described in any one of the above embodiments.
About the current transformer 4, specific implementation is described in detail in above-mentioned related embodiment, herein
Explanation will be not set forth in detail.
Fig. 5 is the structural schematic diagram for the photovoltaic generating system that the application one embodiment provides；As shown in figure 5, the light
Photovoltaic generating system 5 includes:
Solar panel 2, and
Current transformer 4 as described above；
The solar panel 2 is electrically connected with the current transformer 4.
About the photovoltaic generating system 5, specific implementation retouch in detail in above-mentioned related embodiment
It states, no detailed explanation will be given here.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present application, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present application, unless otherwise indicated, the meaning of " multiple "
Refer at least two.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the application includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, to execute function, this should be by the application
Embodiment person of ordinary skill in the field understood.
It should be appreciated that each section of the application can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries
It suddenly is that relevant hardware can be instructed to complete by program, the program can store in a kind of computer-readable storage medium
In matter, which when being executed, includes the steps that one or a combination set of embodiment of the method.
It, can also be in addition, can integrate in a processing module in each functional unit in each embodiment of the application
It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould
Block both can take the form of hardware realization, can also be realized in the form of software function module.The integrated module is such as
Fruit is realized and when sold or used as an independent product in the form of software function module, also can store in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the application.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
Although embodiments herein has been shown and described above, it is to be understood that above-described embodiment is example
Property, it should not be understood as the limitation to the application, those skilled in the art within the scope of application can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (14)
1. a kind of convertor circuit characterized by comprising
Converge circuit and inverter circuit；
The input terminal of the confluence circuit connects solar panel；
The output end of the confluence circuit is connect with the input terminal of the inverter circuit；
The output end of the inverter circuit connects power grid.
2. convertor circuit according to claim 1, which is characterized in that the confluence circuit includes:
DC filter is connect with the solar panel；
D.C. contactor, one end connect the output end of the DC filter, and the other end connects the input terminal of the inverter circuit.
3. convertor circuit according to claim 2, which is characterized in that the D.C. contactor is two；
One D.C. contactor is separately connected the cathode output end of the DC filter and the anode of the inverter circuit
Input terminal；
Another described D.C. contactor is separately connected the cathode output end of the DC filter and bearing for the inverter circuit
Pole input terminal.
4. convertor circuit according to claim 1-3, which is characterized in that the inverter circuit includes:
DC/AC converter, input terminal are connect with the output end of the confluence circuit, and output end connects the power grid.
5. convertor circuit according to claim 2, which is characterized in that the convertor circuit further include:
Back flow prevention element, the back flow prevention element input terminal are connect with the negative input of the DC filter.
6. convertor circuit according to claim 5, which is characterized in that the back flow prevention element includes: diode.
7. convertor circuit according to claim 5, which is characterized in that the convertor circuit further include:
Voltage detection unit, including the first test side and the second test side；
First voltage is provided on the route of the DC filter electrode input end connection solar panel cathode output end
First test side of test point, the voltage detection unit connects the first voltage test point；
Second voltage detection is provided on the route of the back flow prevention element output end connection solar panel cathode output end
Second test side of point, the voltage detection unit connects the second voltage test point.
8. convertor circuit according to claim 7, which is characterized in that the confluence circuit further include:
Fuse is connected between the DC filter and the solar panel.
9. convertor circuit according to claim 8, which is characterized in that
The fuse is arranged on the route of the back flow prevention element connection solar panel cathode output end.
10. convertor circuit according to claim 9, which is characterized in that
The second voltage test point is arranged between the back flow prevention element and the fuse.
11. convertor circuit according to claim 7, which is characterized in that the convertor circuit further include:
Controller is connect with the voltage detection unit and the D.C. contactor respectively, for receiving the voltage detecting list
The detection voltage that member is sent, and when the detection voltage meets preset condition, it controls the D.C. contactor and is attracted.
12. convertor circuit according to claim 11, which is characterized in that the preset condition includes predetermined threshold value voltage.
13. a kind of current transformer characterized by comprising such as the described in any item convertor circuits of claim 1-11.
14. a kind of photovoltaic generating system characterized by comprising
Solar panel, and
Current transformer as claimed in claim 13；
The solar panel is electrically connected with the current transformer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810914205.9A CN109066778A (en) | 2018-08-13 | 2018-08-13 | A kind of convertor circuit, current transformer and photovoltaic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810914205.9A CN109066778A (en) | 2018-08-13 | 2018-08-13 | A kind of convertor circuit, current transformer and photovoltaic system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117117811A (en) * | 2023-10-19 | 2023-11-24 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
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| CN104967354A (en) * | 2015-07-22 | 2015-10-07 | 苏州景新电气有限公司 | Photovoltaic inverter and photovoltaic inversion system |
| CN105680476A (en) * | 2016-03-09 | 2016-06-15 | 湖南馨雅林工程技术有限公司 | Direct-current boost concentrated inversion photovoltaic power generation system |
| CN208797591U (en) * | 2018-08-13 | 2019-04-26 | 珠海格力电器股份有限公司 | A kind of convertor circuit, current transformer and photovoltaic system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104967354A (en) * | 2015-07-22 | 2015-10-07 | 苏州景新电气有限公司 | Photovoltaic inverter and photovoltaic inversion system |
| CN105680476A (en) * | 2016-03-09 | 2016-06-15 | 湖南馨雅林工程技术有限公司 | Direct-current boost concentrated inversion photovoltaic power generation system |
| CN208797591U (en) * | 2018-08-13 | 2019-04-26 | 珠海格力电器股份有限公司 | A kind of convertor circuit, current transformer and photovoltaic system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117117811A (en) * | 2023-10-19 | 2023-11-24 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
| CN117117811B (en) * | 2023-10-19 | 2024-01-05 | 新源智储能源发展(北京)有限公司 | Reverse connection preventing device of battery energy storage system and control method |
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