CN108270397A - A kind of cutoff device opens control method and photovoltaic system - Google Patents
A kind of cutoff device opens control method and photovoltaic system Download PDFInfo
- Publication number
- CN108270397A CN108270397A CN201810234057.6A CN201810234057A CN108270397A CN 108270397 A CN108270397 A CN 108270397A CN 201810234057 A CN201810234057 A CN 201810234057A CN 108270397 A CN108270397 A CN 108270397A
- Authority
- CN
- China
- Prior art keywords
- cutoff device
- open signal
- provisioning instruction
- communication module
- main switch
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 44
- 238000004891 communication Methods 0.000 claims description 74
- 230000002045 lasting effect Effects 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- 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
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- 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
Abstract
A kind of cutoff device of present invention offer opens control method, since each cutoff device is to receive provisioning instruction in batches, or bus capacitor has been completed precharge before each cutoff device receives provisioning instruction, or each cutoff device receives provisioning instruction in batches again after bus capacitor precharge, the lasting high current that all components can be avoided to be started to charge up simultaneously to bus capacitor by zero by cutoff device, solves the problems, such as in the prior art since lasting high current has an impact the service life of bus capacitor.The present invention also provides a kind of photovoltaic systems, are equally solved the problems, such as in the prior art by above-mentioned technical characteristic since lasting high current has an impact the service life of bus capacitor.
Description
Technical field
The present invention relates to photovoltaic system technical field, more particularly to a kind of cutoff device opens control method and photovoltaic system
System.
Background technology
Component level cutoff device is typically arranged in current photovoltaic system, after the output terminal series connection of each cutoff device
It is linked into the header box or inverter of rear class.It is usually that an electronic switch is connected in the loop inside cutoff device；When this
When electronic switch disconnects, voltage or power that cut-out institute connection component externally exports ensure that whole system is in safe voltage model
It encloses；When the electronic switch is closed, component externally exports, and ensures normal power generation.
In above system, when receiving shutdown instruction, as long as each cutoff device disconnects its internal main switch (i.e. above
In electronic switch)；When receiving provisioning instruction, each respective main switch of cutoff device quick-make, at this point, by
Bus capacitor capacity in rear class equipment is larger, and after cutoff device is closed, which is in short circuit curve, can be formed and continued
Short circuit current, referring to Fig. 1；Also, when string formation parallel connection number is more, the short circuit current is bigger, is continued until bus capacitor
Until voltage stabilization；And the lasting high current will have an impact the service life of bus capacitor, influence the reliable of rear class equipment
Property.
Invention content
A kind of cutoff device of present invention offer opens control method and photovoltaic system, is set with solving rear class in the prior art
The problem of service life of standby bus capacitor is impacted.
To achieve the above object, the technical solution that the application provides is as follows：
A kind of cutoff device opens control method, applied to photovoltaic system, the photovoltaic system include communication host and
Multiple cutoff devices；The input terminal of the cutoff device connects at least one component；The output terminal string of multiple cutoff devices
Rear class equipment is accessed after connection；The cutoff device includes：Communication module, controller, drive module and main switch；The shutdown dress
The control method of opening put includes：
The communication host issues the communication module in provisioning instruction to each cutoff device；
The provisioning instruction received is forwarded to the controller by the communication module；
The controller is according to the provisioning instruction, output open signal to the drive module；
The drive module controls the main switch to be closed according to the open signal；
Wherein, the communication host issues the communication module in provisioning instruction to each cutoff device, including：
The communication host according to predetermined number, in batches the provisioning instruction is sent to each cutoff device
Interior communication module；
Alternatively, the communication host is in the rear after the bus capacitor completion precharge of grade equipment, while issue described
Communication module in provisioning instruction to each cutoff device；
Or after the bus capacitor of communication host grade equipment in the rear completes precharge, according to default
Number, the communication module being sent to the provisioning instruction in each cutoff device in batches.
Preferably, the open signal includes：
The impulse wave of the default rule first exported and, the normal open signal after the impulse wave.
Preferably, the drive module controls the main switch to be closed according to the open signal, including：
The drive module first controls the main switch to work in impulse modulation according to default rule according to the impulse wave
Pattern；
Then the drive module controls the main switch normally closed further according to the normal open signal.
Preferably, the impulse wave of the default rule is：Pulsewidth and the fixed impulse wave of frequency, alternatively, pulsewidth and/or
The impulse wave of changeable frequency.
Preferably, the predetermined number is 1.
A kind of photovoltaic system, including：Communication host and multiple cutoff devices；Wherein：
The input terminal of the cutoff device connects at least one component；
Rear class equipment is accessed after the output terminal series connection of multiple cutoff devices；
The cutoff device includes：Communication module, controller, drive module and main switch；
The communication host for according to predetermined number, in batches provisioning instruction is sent to each cutoff device
Interior communication module；Alternatively, after the bus capacitor of grade equipment completes precharge in the rear, while issue the provisioning instruction
Communication module in each cutoff device；Or the bus capacitor of grade equipment is completed after being pre-charged in the rear, according to
Predetermined number, the communication module being sent to the provisioning instruction in each cutoff device in batches；
The communication module is used to the provisioning instruction received being forwarded to the controller；
The controller is used for according to the provisioning instruction, output open signal to the drive module；
The drive module is used to the main switch be controlled to be closed according to the open signal.
Preferably, the open signal includes：
The impulse wave of the default rule first exported and, the normal open signal after the impulse wave.
Preferably, when the drive module is used to control the main switch closure according to the open signal, it is specifically used for：
First the main switch is controlled to work in pulsed mode according to default rule according to the impulse wave；Then root again
Control the main switch normally closed according to the normal open signal.
Preferably, the impulse wave of the default rule is：Pulsewidth and the fixed impulse wave of frequency, alternatively, pulsewidth and/or
The impulse wave of changeable frequency.
Preferably, the cutoff device further includes：Power module, for the electric energy of institute's connection component to be carried out voltage conversion
It powers afterwards for the communication module and the controller.
Cutoff device provided by the invention opens control method, first pass through communication host according to predetermined number, in batches
, provisioning instruction is sent to the communication module in each cutoff device；Alternatively, the bus capacitor in rear class equipment completes preliminary filling
After electricity, while issue the communication module in the provisioning instruction to each cutoff device；It will be received by communication module again
Provisioning instruction be forwarded to controller；By controller according to the provisioning instruction, output open signal to drive module；Again by driving
Module controls main switch to be closed according to open signal, and that realizes component output opens function.Since each cutoff device is in batches
Receive provisioning instruction or bus capacitor has been completed preliminary filling before each cutoff device receives provisioning instruction
Electricity or bus capacitor precharge after each cutoff device receive provisioning instruction in batches again, can avoid whole groups
The lasting high current that part is started to charge up by cutoff device to bus capacitor by zero simultaneously is solved in the prior art due to continuing
High current the problem of being had an impact to the service life of bus capacitor.
Description of the drawings
Technical solution in order to illustrate the embodiments of the present invention more clearly or in the prior art to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, it is only this that interior attached drawing, which is described below,
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the voltage and current oscillogram of the bus capacitor for the cutoff device rear class equipment that the prior art provides；
Fig. 2 is the structure diagram of photovoltaic system provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of cutoff device provided in an embodiment of the present invention；
Fig. 4 a are the flow charts for opening control method of cutoff device provided in an embodiment of the present invention；
Fig. 4 b are the partial process views for opening control method of cutoff device provided in an embodiment of the present invention；
Fig. 5 is that the execution cutoff device that another embodiment of the present invention provides opens the busbar voltage obtained after control method
Oscillogram；
Fig. 6 is the oscillogram of the component voltage and component electric current when the cutoff device that the prior art provides is opened；
Fig. 7 is that the execution cutoff device that another embodiment of the present invention provides opens the component voltage obtained after control method
With the oscillogram of component electric current.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall in the protection scope of this application.
Referring to Fig. 2, photovoltaic system includes：Communication host and multiple cutoff devices；
The modes such as 485 communications, plc communication or wireless communication may be used in communication host；The communication host can be realized
With the communication between component level equipment (such as cutoff device), inverter or monitoring backstage.
The output terminal series connection of multiple cutoff devices makes connected component become string formation, and the both ends access after series connection
The input terminal of rear class equipment；The rear class equipment is conventional header box or inverter；
Cutoff device refers to that the component level product for having turn-off capacity, such as switching off device, optimizer, input terminal are connected to
A few component, you can be one-to-one connection or a pair of of multi-connection；The cutoff device has shutdown and communication work(
Energy.
Fig. 3 show the electrical diagram of cutoff device, mainly includes：Communication module 101, controller 102, drive module
103 and main switch 104；In the prior art, when the provisioning instruction received is transmitted to controller 102 by communication module 101, control
Device 102 processed will control main switch 104 to be closed by drive module 103；It is set in order to avoid larger short circuit current can influence rear class
Standby bus capacitor service life, a kind of cutoff device of the present embodiment proposition open control method, as shown in fig. 4 a, including：
S101, communication host issue the communication module in provisioning instruction to each cutoff device；
Optionally, step S101 can be specially any one among following three mode：
A, the communication mould being sent to provisioning instruction in each cutoff device of communication host according to predetermined number, in batches
Block；
Preferably, which is 1.
B, communication host is after the bus capacitor of rear class equipment completes precharge, while issues provisioning instruction to each pass
Communication module in disconnected device；
C, communication host is after the bus capacitor of rear class equipment completes precharge, general according to predetermined number, in batches
Provisioning instruction is sent to the communication module in each cutoff device.
The provisioning instruction received is forwarded to controller by S102, communication module；
S103, controller are according to provisioning instruction, output open signal to drive module；
S104, drive module control main switch to be closed according to open signal.
In the prior art, conventional provisioning instruction is sent in the form of communication broadcast, i.e., disposably issues out in batches
Logical instruction；When all cutoff devices are closed at, the impact to rear class busbar is certainly existed.Therefore, the present embodiment passes through
Employing mode A sends the mode of provisioning instruction in batches, realize step S101, can be to avoid the impact to rear class busbar, specifically
's：
For photovoltaic system shown in Fig. 2, wherein comprising n string formation, i.e. S1, S2 ... Sn；Each string formation includes multiple
Cutoff device.Each cutoff device can receive provisioning instruction in batches, have m cutoff device to be closed every time, and 0<m≤n.As most
Simply, m=1 only opens a cutoff device every time, i.e. communication host first sends the one of shutdown of provisioning instruction control
Device is closed, then second cutoff device is controlled to be closed, and so on, until all cutoff devices are closed；It can make in this way
The waveform for obtaining busbar voltage delays role as shown in figure 5, playing bus capacitor.It avoids all components and passes through cutoff device
Lasting high current when charging simultaneously to bus capacitor, solves in the prior art since lasting high current is to bus capacitor
The problem of service life has an impact.
In view of completing all provisioning instruction occupied total times, m can take larger value, such as per 3 passes of secondary control
Disconnected device closure etc., particular number can be adjusted according to the numerical value of n in real system, be not specifically limited, existed herein
In the protection domain of the application.
Alternatively, mode B may be used in step S101, i.e., bus capacitor is made each into line precharge using pre-charging device
Bus capacitor voltage can be raised to the degree close with string formation voltage, and then avoid all components by a cutoff device before being closed
The lasting high current started to charge up simultaneously to bus capacitor by zero by cutoff device, can also realize the guarantor for bus capacitor
Shield.
Or step S101 can be with employing mode C, i.e., first to bus capacitor into line precharge, by bus capacitor electricity
Pressure is raised to suitable voltage, then each cutoff device of secondary control is closed in batches, the cutoff device institute connection component being closed for the first time
Voltage it is close with bus capacitor voltage；Also delaying for bus capacitor can be realized.
The effect of above three mode is close, wherein, the cost of mode A is lower, conducive to application；It, can be in practical application
It is selected as the case may be, in the protection domain of the application.
What deserves to be explained is if it is the busbar of rear class equipment when the cutoff device of a string formation is closed at, in string formation
The short circuit current of capacitor charging is larger, and this impact can be such that component voltage is dragged down by moment, as shown in fig. 6, component voltage is less than
It will cause cutoff device is under-voltage to restart at critical under-voltage；It is closed after restarting, impacts once more again, it could be complete after being repeated several times
The work of portion normally closed, and impact repeatedly and restart and will influence device lifetime, reduce reliability.
Therefore, what another embodiment of the present invention provided another cutoff device opens control method, in employing mode A
Basis on or in the case that employing mode B bus capacitor voltages after the completion of the precharge are relatively low, it is preferred that step
Open signal in S103 and S203 includes：
The impulse wave of the default rule first exported and, the normal open signal after the impulse wave.
At this point, referring to Fig. 4 b, step S104 includes the following two steps performed in sequence：
S401, drive module first control main switch to work in pulsed mode according to default rule according to the impulse wave；
S402, drive module are normally closed further according to normal open signal control main switch.
Pass through above-mentioned steps so that controller can be according to PWM (Pulse Width Modulation, pulse width tune
System) pattern controls main switch；The default rule impulse wave of a period of time is first sent out, enables the electric energy of institute's connection component
It is enough slowly gradually to be charged to the bus capacitor of rear class equipment；
Referring to Fig. 7, under PWM mode control, component electric current can also be divided into multiple rising, will not cause very big impact electricity
Stream；Component voltage can be divided into multiple decline, and each fall is all smaller, will not cause cutoff device is under-voltage to restart.
Optionally, the impulse wave of the default rule can be：Pulsewidth and the fixed impulse wave of frequency, alternatively, pulsewidth and/
Or the impulse wave of changeable frequency.That is, the service time Ton and turn-off time Toff and cycle of the pwm pulse in Fig. 7
Number, can be configured according to actual conditions；And each pwm pulse pulsewidth and interval can be different, as pulsewidth by
Gradual change is big, can shorten the time of system stabilization；It is not specifically limited, can exist depending on its concrete application environment herein
In the protection domain of the application.
After continuous several cycles, the voltage of bus capacitor is gradually increasing, then controls main switch normal by normal open signal
It closes, that realizes component output opens function；It can avoid disposably filling bus capacitor with larger dash current in this way
Influence caused by electric for the cutoff device service life improves the reliability of system, meanwhile, it also can further ensure that busbar
Capacitance delays.
Another embodiment of the present invention additionally provides a kind of photovoltaic system, referring to Fig. 2, including：Communication host and multiple shutdowns
Device；Wherein：
The input terminal of cutoff device connects at least one component；
The output terminal series connection of multiple cutoff devices makes connected component become string formation, and the both ends access after series connection
Rear class equipment；The rear class equipment is conventional header box or inverter；
Referring to Fig. 3, which includes：Communication module 101, controller 102, drive module 103 and main switch 104；
Wherein：
Communication host is for the communication being sent to provisioning instruction in each cutoff device according to predetermined number, in batches
Module 101；Alternatively, after the bus capacitor of rear class equipment completes precharge, while provisioning instruction is issued to each shutdown dress
Put interior communication module 101；Or after the bus capacitor of rear class equipment completes precharge, according to predetermined number, in batches
The secondary communication module 101 being sent to provisioning instruction in each cutoff device；
Communication module 101 is used to the provisioning instruction received being forwarded to controller 102；
Controller 102 is used for according to provisioning instruction, output open signal to drive module 103；
Drive module 103 is used to main switch 104 be controlled to be closed according to open signal.
Preferably, open signal includes：
The impulse wave of the default rule first exported and, the normal open signal after impulse wave.
Preferably, when drive module 103 is used to control main switch closure according to open signal, it is specifically used for：
First main switch is controlled to work in pulsed mode according to default rule according to impulse wave；Then believe further according to normal open
Number control main switch it is normally closed.
Preferably, the impulse wave of default rule is：Pulsewidth and the fixed impulse wave of frequency, alternatively, pulsewidth and/or frequency
Variable impulse wave.
Preferably, referring to Fig. 3, which further includes：Power module 105, for by the electric energy of institute's connection component into
Row voltage is powered after converting into communication module 101 and controller 102.
Specific principle is same as the previously described embodiments, no longer repeats one by one herein.
Each embodiment is described by the way of progressive in the present invention, the highlights of each of the examples are with other realities
Apply the difference of example, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is referring to method part illustration
.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention.Though
So the present invention is disclosed above with preferred embodiment, however is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, without departing from the scope of the technical proposal of the invention, all using the methods and technical content of the disclosure above to the present invention
Technical solution makes many possible changes and modifications or is revised as the equivalent embodiment of equivalent variations.Therefore, it is every without departing from
The content of technical solution of the present invention, it is any simple modification made to the above embodiment of technical spirit according to the present invention, equivalent
Variation and modification, still fall within technical solution of the present invention protection in the range of.
Claims (10)
1. a kind of cutoff device opens control method, which is characterized in that applied to photovoltaic system, the photovoltaic system includes logical
Believe host and multiple cutoff devices；The input terminal of the cutoff device connects at least one component；Multiple cutoff devices
Rear class equipment is accessed after output terminal series connection；The cutoff device includes：Communication module, controller, drive module and main switch；Institute
The control method of opening for stating cutoff device includes：
The communication host issues the communication module in provisioning instruction to each cutoff device；
The provisioning instruction received is forwarded to the controller by the communication module；
The controller is according to the provisioning instruction, output open signal to the drive module；
The drive module controls the main switch to be closed according to the open signal；
Wherein, the communication host issues the communication module in provisioning instruction to each cutoff device, including：
The communication host the provisioning instruction being sent in each cutoff device according to predetermined number, in batches
Communication module；
Alternatively, the communication host is in the rear after the bus capacitor completion precharge of grade equipment, while issue described open-minded
It instructs to the communication module in each cutoff device；
Or the communication host in the rear grade equipment bus capacitor complete precharge after, according to predetermined number, point
The communication module being sent to the provisioning instruction in each cutoff device of batch.
2. cutoff device according to claim 1 opens control method, which is characterized in that the open signal includes：
The impulse wave of the default rule first exported and, the normal open signal after the impulse wave.
3. cutoff device according to claim 2 opens control method, which is characterized in that the drive module is according to institute
Stating open signal controls the main switch to be closed, including：
The drive module first controls the main switch to work in pulsed mode according to default rule according to the impulse wave；
Then the drive module controls the main switch normally closed further according to the normal open signal.
4. cutoff device according to claim 2 opens control method, which is characterized in that the pulse of the default rule
Wave is：Pulsewidth and the fixed impulse wave of frequency, alternatively, the impulse wave of pulsewidth and/or changeable frequency.
5. control method is opened according to any cutoff devices of claim 1-4, which is characterized in that the predetermined number
It is 1.
6. a kind of photovoltaic system, which is characterized in that including：Communication host and multiple cutoff devices；Wherein：
The input terminal of the cutoff device connects at least one component；
Rear class equipment is accessed after the output terminal series connection of multiple cutoff devices；
The cutoff device includes：Communication module, controller, drive module and main switch；
Provisioning instruction for being sent in each cutoff device according to predetermined number, in batches by the communication host
Communication module；Alternatively, after the bus capacitor of grade equipment completes precharge in the rear, while the provisioning instruction is issued to each
Communication module in a cutoff device；Or the bus capacitor of grade equipment is completed after being pre-charged in the rear, according to default
Number, the communication module being sent to the provisioning instruction in each cutoff device in batches；
The communication module is used to the provisioning instruction received being forwarded to the controller；
The controller is used for according to the provisioning instruction, output open signal to the drive module；
The drive module is used to the main switch be controlled to be closed according to the open signal.
7. photovoltaic system according to claim 6, which is characterized in that the open signal includes：
The impulse wave of the default rule first exported and, the normal open signal after the impulse wave.
8. photovoltaic system according to claim 7, which is characterized in that the drive module is used for according to the open signal
When controlling the main switch closure, it is specifically used for：
First the main switch is controlled to work in pulsed mode according to default rule according to the impulse wave；Then further according to institute
Stating normal open signal controls the main switch normally closed.
9. photovoltaic system according to claim 7, which is characterized in that the impulse wave of the default rule is：Pulsewidth and frequency
The fixed impulse wave of rate, alternatively, the impulse wave of pulsewidth and/or changeable frequency.
10. according to any photovoltaic system of claim 6 to 9, which is characterized in that the cutoff device further includes：Power supply
Module, for power after voltage is converted into the communication module and the controller electric energy of institute's connection component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234057.6A CN108270397B (en) | 2018-03-21 | 2018-03-21 | A kind of cutoff device opens control method and photovoltaic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810234057.6A CN108270397B (en) | 2018-03-21 | 2018-03-21 | A kind of cutoff device opens control method and photovoltaic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108270397A true CN108270397A (en) | 2018-07-10 |
| CN108270397B CN108270397B (en) | 2019-08-13 |
Family
ID=62775102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810234057.6A Active CN108270397B (en) | 2018-03-21 | 2018-03-21 | A kind of cutoff device opens control method and photovoltaic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108270397B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964136A (en) * | 2018-09-17 | 2018-12-07 | 阳光电源股份有限公司 | A kind of photovoltaic turning off system and its control method |
| CN109149777A (en) * | 2018-09-28 | 2019-01-04 | 阳光电源股份有限公司 | A kind of shutdown control system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015233386A (en) * | 2014-06-10 | 2015-12-24 | 日東工業株式会社 | Photovoltaic power generation system |
| KR20160046126A (en) * | 2014-10-20 | 2016-04-28 | 주식회사 맥사이언스 | Method and Apparatus of Inspecting Solar Module |
| US20160301214A1 (en) * | 2009-12-29 | 2016-10-13 | Tigo Energy, Inc. | Systems and methods for remote or local shut-off of a photovoltaic system |
| CN106602998A (en) * | 2017-02-28 | 2017-04-26 | 阳光电源股份有限公司 | Instruction sending device and photovoltaic component closing system |
| US20170207620A1 (en) * | 2016-01-18 | 2017-07-20 | Delta Electronics (Shanghai) Co., Ltd | Photovoltaic system and rapid shutdown method thereof |
-
2018
- 2018-03-21 CN CN201810234057.6A patent/CN108270397B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160301214A1 (en) * | 2009-12-29 | 2016-10-13 | Tigo Energy, Inc. | Systems and methods for remote or local shut-off of a photovoltaic system |
| JP2015233386A (en) * | 2014-06-10 | 2015-12-24 | 日東工業株式会社 | Photovoltaic power generation system |
| KR20160046126A (en) * | 2014-10-20 | 2016-04-28 | 주식회사 맥사이언스 | Method and Apparatus of Inspecting Solar Module |
| US20170207620A1 (en) * | 2016-01-18 | 2017-07-20 | Delta Electronics (Shanghai) Co., Ltd | Photovoltaic system and rapid shutdown method thereof |
| CN106602998A (en) * | 2017-02-28 | 2017-04-26 | 阳光电源股份有限公司 | Instruction sending device and photovoltaic component closing system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964136A (en) * | 2018-09-17 | 2018-12-07 | 阳光电源股份有限公司 | A kind of photovoltaic turning off system and its control method |
| CN108964136B (en) * | 2018-09-17 | 2020-09-11 | 阳光电源股份有限公司 | Photovoltaic turn-off system and control method thereof |
| CN109149777A (en) * | 2018-09-28 | 2019-01-04 | 阳光电源股份有限公司 | A kind of shutdown control system and method |
| US11082004B2 (en) | 2018-09-28 | 2021-08-03 | Sungrow Power Supply Co., Ltd. | Shutdown control system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108270397B (en) | 2019-08-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108270398B (en) | Control method is opened in photovoltaic system and cutoff device and its provisioning instruction response | |
| CN102969882B (en) | Starting method of modular multi-level flexible direct-current transmission converter | |
| CN108847769A (en) | Three level BOOST devices of one kind and its control method | |
| CN104617808B (en) | Square wave high-voltage pulse electric source circuit that polarity is adjustable and the control strategy for producing bipolar pulse | |
| CN108847690B (en) | Micro-grid operation mode seamless switching control device and method | |
| CN108270397B (en) | A kind of cutoff device opens control method and photovoltaic system | |
| CN206790098U (en) | A kind of photovoltaic module Quick shut-off device and photovoltaic generating system | |
| CN103066826B (en) | Soft-start system of switching power supply converter | |
| GB2489262A (en) | Testing apparatus for testing a switching valve in an HVDC power converter | |
| CN103036446A (en) | Soft starting device and method for high-power transformer | |
| CN110149044A (en) | Two-stage converter and its starting method, LLC converter and application system | |
| CN107317471A (en) | A kind of method started suitable for solid-state transformer | |
| CN203445816U (en) | Two compressor soft start apparatus | |
| CN108695899B (en) | Medium-voltage photovoltaic grid-connected system and control method and square matrix unit thereof | |
| CN103063888B (en) | Trigger time sequence system of Microsoft management console (MMC) valve overflow shutoff test and test method thereof | |
| CN103269165B (en) | The switching control circuit of power converter | |
| CN101615848A (en) | A kind of variable frequency soft starter | |
| CN103281001B (en) | Adjustable high-voltage square-wave pulsed power supply used for ZnO performance test | |
| CN109254213A (en) | A kind of electric property detection device and method of intelligent assembly | |
| CN113612268A (en) | Super capacitor module platform with charge and discharge management module and method | |
| RU2009105731A (en) | DEVICE AND CONTROL DIAGRAM FOR POWER ELECTRONIC COMPONENT, APPROPRIATE METHOD OF CONTROL AND STARTING DEVICE | |
| CN206712679U (en) | A kind of low cost high power long pulse, which is leapt high, pushes up flat high-voltage pulse power source | |
| CN106163070A (en) | A kind of high current ion source arc power | |
| CN109004817A (en) | A kind of the starting method and DC boosting system of DC boosting system | |
| CN109085784A (en) | A kind of capacitor control circuit and a kind of electromagnetic type vacuum circuit breaker control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |