CN107332506A - A kind of design of the photovoltaic cell system based on central control system - Google Patents
A kind of design of the photovoltaic cell system based on central control system Download PDFInfo
- Publication number
- CN107332506A CN107332506A CN201710779273.4A CN201710779273A CN107332506A CN 107332506 A CN107332506 A CN 107332506A CN 201710779273 A CN201710779273 A CN 201710779273A CN 107332506 A CN107332506 A CN 107332506A
- Authority
- CN
- China
- Prior art keywords
- central control
- photovoltaic
- control system
- photovoltaic generating
- generating system
- 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.)
- Pending
Links
- 238000010248 power generation Methods 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims description 9
- 238000003491 array Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
-
- 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
-
- 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
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
-
- 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
The present invention provides a kind of photovoltaic cell system based on central control system, it in photovoltaic cell chip arrays by setting response collection and control circuit, by relative program can automatic detection go out in parallel photovoltaic array to be unable to maintain that fault branch that normal voltage is exported is dynamic and disconnecting, reduce because in photovoltaic power generation array each branch voltage it is unbalanced caused by power output by being influenceed.
Description
Technical field
The present invention relates to a kind of design of intelligent photovoltaic electrification component, can conveniently it be detected in particular to one kind
The design for the photovoltaic cell chip arrays that cell piece working condition and the automatic cell piece that will be unable to normal work disconnect.
Background technology
At present, independent type photovoltaic power generation system has been obtained for a certain degree of application in vast rural area and with wide
Wealthy development prospect.But during actual use, a certain cell piece or the generating event of a certain branch road in system often occurs
Barrier causes each branch voltage equilibrium generation electric current to fall to pass through phenomenon, has a strong impact on charge efficiency.For example, in photovoltaic power generation array for simultaneously
Be coupled structure, and each branch road is in the case of cell piece is in series, often occur in which in a branch road some or
Several cell pieces break down, and cause the voltage of the branch road to reduce, cause the electric current fault branch of falling injection of other normal branch roads,
Have a strong impact on the delivery efficiency of photovoltaic power generation array.
The content of the invention
It is an object of the invention to provide a kind of design of new intelligent photovoltaic cell system, it is in traditional photovoltaic cell
Peripheral circuit is built on chip arrays, using information acquisition module by the peripheral circuit to the cell piece in photovoltaic power generation array
Detected, if found the abnormal situation, will damage branch road using simple switch control and disconnect, and make photovoltaic generating system in charging
Efficiency works in the case of not being significantly affected, until regular maintenance.
The present invention can be achieved through the following technical solutions：
A kind of photovoltaic generating system, it is characterised in that：Photovoltaic generating system is provided with a central control system, the center control system
System is externally connected to information acquisition module and switch control module, the photovoltaic power generation array of photovoltaic generating system for parallel-connection structure and
Each branch route cell piece is in series, and the positive terminal of each branch road, which is connected one, to be switched, and negative pole sets a sampling cartridge
Put；The sampling apparatus is connected to the information acquisition module of central control system, and the switch is connected to central control system
Switch control module.
Further, the present invention can be realized using following technical scheme：
The central control system is PC control systems or single-chip microcomputer.
The sampling apparatus is connected to for a current sensor for being connected to information acquisition module, or a both end voltage
The series resistance of information acquisition module.
The current sensor is the Hall sensor being enclosed on wire.
The switch is relay.
The advantage of this programme is：There is branch road failure in photovoltaic battery array, cause output voltage to become hour, be
System can automatically identify fault branch by detection, while fault branch is disconnected, can so avoid the electric current failure of falling injection
Branch road, it is ensured that open-circuit voltage, makes charge power not significantly affected.
Brief description of the drawings
Fig. 1 is the structural representation of photovoltaic system of the present invention.
Embodiment
The present invention is more fully described hereinafter with reference to accompanying drawing 1, in illustrating below, eliminates to those skilled in that art
The description of known features and technology.As shown in fig. 1, this photovoltaic power generation array is made up of 8 branch circuit parallel connections, each branch route
Photovoltaic cell 1 is in series.S1 ... S8 is switched in the anode series connection one of each branch road, negative electrode is provided with a sampling apparatus 2
It is connected to information acquisition module.In this example, sampling apparatus 2 is the Hall sensor being enclosed on wire, but it is also possible to use it
Current data is delivered to intelligence sample module by the current sensor of his species, or using a resistance of directly connecting, is then adopted
The mode of collection resistance both end voltage completes sampling.
Described information acquisition module and switch control module are connected by I/O mouthfuls with central control system and by presetting journey
Sequence carries out data communication, for example：Central control system sends " 2 " to information acquisition module, then information acquisition module is by the 2nd article
The gathered data feeding central control system of branch road is handled；Or central control system sends " 2 " to switch control module, then
Switch control module output control signal is switched off the 2nd article of branch road.
On the basis of above-mentioned design, using single-chip microcomputer as central control system exemplified by, introduce the system with reference to accompanying drawing 1
The course of work：It is normally off during the system switch S1, S2 ... S8 normal works；Single-chip microcomputer performs pre-set programs and not stopped or often
The electric current in a photovoltaic array in each branch road is detected successively every a time cycle, then using program by latter branch road
Electric current does additive operation, i.e. the second branch current with previous branch current and subtracts tie point electric current, and the 3rd branch current subtracts the second
Branch current, the electric current to tie point subtracts the electric current of the 8th branch road by that analogy, if gained current differential forward direction is excessive successively,
More than the predetermined threshold value electric current in program, then illustrate that the electric current of previous branch road is too small, single-chip microcomputer performs the program write in advance and led to
Cross the switch that switch control module disconnects the branch road.
The principle described in the preceding paragraph, for advantage of this system is that：When a certain cell piece in photovoltaic array can not
Work, when branch road where it normally can not export full-amount voltage, the branch road is disconnected, this avoid the branch of other normal works
Road is by the electric current fault branch of falling injection, and on the basis of photovoltaic battery array voltage is ensured, electric current is only reduced by about 1/ in theory
8, it is to avoid electric current the influence excessively reduced to charge efficiency.
For the array structure first in parallel connected again being commonly used in practice, the cell piece because used in
Specification is identical, such as common 22cm × 22cm polysilicon chip, its output voltage is consistent with power, therefore can be equivalent by its
It is transformed into after structure as shown in Figure 1 using the present invention.For example：8 groups of series connection, each group by 8 cell pieces light in parallel
Array is lied prostrate, the parallel connection of 8 tunnels is convertible into, the array that the cell pieces of 8 series connection are constituted often is route.
Finally, it should be finally fixed according to single-chip microcomputer and be placed in the photovoltaic cell chip arrays back side and keep certain with the back side
Distance or other shady places avoid temperature too high.On single-chip microcomputer or PC control systems and the specific control of external connection module circuit selection
Being written as technical staff and can writing completion for program, will not be repeated here.
The application example of technical solution of the present invention is described in detail above, it is only provided as an example, is not intended as the present invention
Application limitation.The equivalent substitution of all operating conditions, is within the scope of the present invention.
Claims (5)
1. a kind of photovoltaic generating system, it is characterised in that：Photovoltaic generating system is provided with a central control system, photovoltaic generating system
Photovoltaic power generation array be in series for parallel-connection structure and each branch route cell piece, the positive terminal of each branch road series connection one
Individual switch, negative pole sets a sampling apparatus；The sampling apparatus is connected to the information acquisition module of central control system, described
Switch is connected to the switch control module of central control system.
2. photovoltaic generating system according to claim 1, it is characterised in that：The central control system is PC control systems
Or single-chip microcomputer.
3. photovoltaic generating system according to claim 1, it is characterised in that：The sampling apparatus is one and is connected to information
The current sensor of acquisition module, or a both end voltage are connected to the series resistance of information acquisition module.
4. photovoltaic generating system according to claim 4, it is characterised in that：The current sensor is to be enclosed on wire
Hall sensor.
5. photovoltaic generating system according to claim 1, it is characterised in that：The switch is relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779273.4A CN107332506A (en) | 2017-09-01 | 2017-09-01 | A kind of design of the photovoltaic cell system based on central control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710779273.4A CN107332506A (en) | 2017-09-01 | 2017-09-01 | A kind of design of the photovoltaic cell system based on central control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107332506A true CN107332506A (en) | 2017-11-07 |
Family
ID=60204738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710779273.4A Pending CN107332506A (en) | 2017-09-01 | 2017-09-01 | A kind of design of the photovoltaic cell system based on central control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107332506A (en) |
-
2017
- 2017-09-01 CN CN201710779273.4A patent/CN107332506A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201956938U (en) | Photovoltaic array confluence box | |
| CN103605017B (en) | A kind of detection method of vehicle switch quantity signal | |
| CN205484533U (en) | Battery voltage monitored control system | |
| CN101931254B (en) | Guasi-static equalizing charge system and method for serially connected lithium battery pack | |
| CN107370455A (en) | A kind of automatic monitoring of photovoltaic cell system and troubleshooting methodology | |
| CN104065141B (en) | large-scale battery management system | |
| CN201878049U (en) | Intelligent header box for photovoltaic power generation | |
| CN107345979A (en) | insulator leakage current on-line monitoring system | |
| CN107395118A (en) | A kind of intelligent photovoltaic cell system monitoring and troubleshooting methodology design | |
| CN206725642U (en) | insulator leakage current on-line monitoring system | |
| CN202524069U (en) | Reverse-polarity protection circuit | |
| CN105676137B (en) | A kind of high speed cell voltage scanning circuit | |
| CN105576765B (en) | A kind of voltage collection circuit of multiple batteries | |
| CN208353060U (en) | A kind of battery and power supply adaptor supply power with double circuit switching circuit | |
| CN204258343U (en) | A kind of lithium battery group monitor and repairing device with multi-string battery | |
| CN107332506A (en) | A kind of design of the photovoltaic cell system based on central control system | |
| CN204011597U (en) | A kind of device of storage battery redundancy reprovision group | |
| CN104616475A (en) | Wireless storage battery management system based on inductive power pickup and supply | |
| CN201781291U (en) | Direct-current screen storage battery pack current sampling device with shunt replacing Hall element | |
| CN114552726A (en) | New energy multi-source input low-voltage power distribution system supporting wireless communication | |
| CN107547046A (en) | A kind of automatic detection and troubleshooting methodology of intelligent photovoltaic cell system | |
| CN208285242U (en) | Solar power supply apparatus and central control system | |
| CN201311448Y (en) | Solar cell panel no-load voltage detection circuit | |
| CN215375737U (en) | Storage battery wiring detection device | |
| CN101388553A (en) | Current charger |
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 |