CN204967752U - Intelligence photovoltaic power generation system based on plastics optical fiber communication - Google Patents
Intelligence photovoltaic power generation system based on plastics optical fiber communication Download PDFInfo
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- CN204967752U CN204967752U CN201520740175.6U CN201520740175U CN204967752U CN 204967752 U CN204967752 U CN 204967752U CN 201520740175 U CN201520740175 U CN 201520740175U CN 204967752 U CN204967752 U CN 204967752U
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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
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Abstract
The utility model relates to an intelligence photovoltaic power generation system based on plastics optical fiber communication, the rounded shape coating structure for the knee space of the front seat is characterized in that, each photovoltaic module is equipped with an intelligent terminal box in this system, the intelligence terminal box is by power supply circuit, the bypass circuit, voltage sampling circuit, current sampling circuit, electric energy parameter processing circuit, the DCDC transfer circuit, the microprocesso, light communication interface circuit, constitutions such as fault indication circuit, flow box converge in this system by microprocessor, electric energy parameter processing circuit, current -voltage sampling circuit, the concentrator of area light communication interface circuit, radio communication circuit, the dc bus, constitutions such as power supply circuit and switch auto -change over device. In this system, between each terminal box, each terminal box cluster group all adopts plastic fiber and light transceiver to realize the communication with converging between the flow box, realization intellectuality under microprocessor control. The utility model discloses plastics optical fiber communication is with low costs, anti -electromagnetic interference, can withstand and expose to the sun and rain, can also successfully keep apart photovoltaic module, has improved photovoltaic power plant's high voltage security.
Description
Technical field
The utility model relates to the intelligent operation maintenance technical field in photovoltaic generation station, especially plastic fiber communication technological means is applied to the field such as generating, operation, maintenance of photovoltaic plant.
Background technology
Photovoltaic generation has become one of clean energy resource important form.Due to the power density of photovoltaic generation less (150W/ square metre), photovoltaic plant needs to take sizable area, normal conditions cannot find fault by human attendance and gather relevant data, therefore, the daily operation management of photovoltaic plant, the high efficiency of plant maintenance, intellectuality receive much attention.
Photovoltaic module is the most basic generator unit of photovoltaic plant.For the additional intelligent terminal box of each photovoltaic module, again convergence that this intelligent terminal box collects is carried out showing and processing to terminal, this pattern is just being probed into by many people, sampling, the process of photovoltaic module electrical quantity are that ready-made scheme is more, but data are then each has something to recommend him by which kind of data channel transmission.People are striving to find the most practical the most reliable most economical actualizing technology scheme.
Summary of the invention
The purpose of this utility model is: provide a kind of photovoltaic module Intelligent wiring box based on polymer optical fiber communication, plays the low cost of polymer optical fiber communication, the feature of highly reliable, good environmental adaptability, for the intelligent operation management of photovoltaic plant provides basic equipment.
For achieving the above object, the technical solution of the utility model is, a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication, its formation includes photovoltaic module, Intelligent wiring box, header box, inverter, each photovoltaic module is all connected with an Intelligent wiring box, it is characterized in that: the circuit formation of described Intelligent wiring box includes power circuit, bypass circuit, voltage sampling circuit, current sampling circuit, electrical energy parameter treatment circuit, DC/DC translation circuit, microprocessor, optical communication interface circuit, failure indicating circuit, the positive and negative extreme and Intelligent wiring box positive-negative input end sub-connection of photovoltaic module, between Intelligent wiring box positive-negative input end, reverse cross-over connection has bypass diode, input positive terminal is connected to output cathode terminal through the DC/DC translation circuit by Microprocessor S3C44B0X, input negative terminal is connected to output negative pole terminal after over-current sensor, power circuit output end and voltage sampling circuit signal input part are connected across between input positive and negative terminals, voltage sampling circuit signal output part is connected with electrical energy parameter treatment circuit signal input part, current sampling circuit signal output part is connected with electrical energy parameter treatment circuit signal input part, electrical energy parameter treatment circuit signal output part is connected with microprocessor signals input, DC/DC translation circuit controlled end is connected with microprocessor-based control end, microprocessor is connected with the controlled terminal of failure indicating circuit, microprocessor is also connected with a Signal transmissions end of optical communication interface circuit, another Signal transmissions end of optical communication interface circuit is connected with the optical communication interface circuit Signal transmissions end in other Intelligent wiring box outside this Intelligent wiring box or concentrator or header box by optical fiber.
In technique scheme, described optical communication interface circuit is made up of single core optical transceiver and plastic fiber, plastic fiber and optical transceiver are that light path is docked, optical transceiver or change the signal of telecommunication into light signal, another place is transferred to through plastic fiber, restored into the signal of telecommunication by optical transceiver, or the light signal that plastic fiber transmission comes is transformed into the signal of telecommunication.
In technique scheme, described optical communication interface circuit is made up of twin-core optical transceiver and twin-core plastic fiber, twin-core optical transceiver and twin-core plastic fiber are that light path is docked, the signal of telecommunication, while a certain plastic fiber light signal is transformed into the signal of telecommunication, can also be transformed into light signal and transmits through another root plastic fiber by twin-core optical transceiver.
In technique scheme, the current sensor in described current sampling circuit adopts copper-manganese sampler or Hall sampler.
In technique scheme, a photovoltaic module and an Intelligent wiring box form a basic power supply unit, several basic power supply units form a power supply and form a team, same power supply form a team in each power supply unit electric energy output end head and the tail serial connection, be connected to an electrical energy inputs of header box again, same power supply form a team in each Intelligent wiring box optical communication interface circuit in be provided with two single core optical transceivers, can core plastic fiber single with two be that light path is docked respectively, this power supply form a team in two single core plastic fibers of each Intelligent wiring box be also head and the tail serial connections, form a ring-shaped light signal and communication link, form a team two plastic fiber ends of optical signal communication link of this power supply are directly that light path is docked with the optical transceiver in concentrator or header box.
In technique scheme, the composition of described header box includes, microprocessor, electrical energy parameter treatment circuit, current-voltage sampling circuit, with the concentrator of optical communication interface circuit, radio communication circuit, DC bus, power circuit and switching device, the voltage signal inputs of current-voltage sampling circuit is connected across between DC bus two outputs, the current signal input of current sampling circuit is connected across current sensor two ends, the signal output part of current-voltage sampling circuit is connected with the signal input part of electrical energy parameter treatment circuit, the signal output part of electrical energy parameter treatment circuit receives microprocessor signals input, microprocessor is also connected with the controlled end of radio communication circuit with optical communication interface circuit respectively, microprocessor is also connected with Switch Control device, Switch Control device has some to electrical energy inputs, a photovoltaic module and an Intelligent wiring box form a basic power supply unit, a pair electrical energy inputs of Switch Control device is connected to after the electric energy output end serial connection of several basic power supply units.
In technique scheme, described Switch Control device can change each pair of electrical energy inputs access the quantity of basic power supply unit, in Switch Control device, maybe the power supply unit being linked into two pairs of electrical energy inputs is connected in series again, or by certain a pair, a few power supply unit to electrical energy inputs is connected in series with power supply unit that other electrical energy inputs accesses respectively.
The utility model has the advantages that:
The first, the utility model has given full play to the outstanding advantages of polymer optical fiber communication.One, polymer optical fiber communication advantage of lower cost, this feature is better than adopting plain conductor to connect the communication mode of networking.Two, plastic fiber electromagnetism interference excellent performance, what transmit in plastic fiber is light signal, can not be subject to the electromagnetic interference of circuit self or external environment.This feature is obviously better than the communication mode adopting wireless networking, also has explicit costs advantage simultaneously.Three, plastic fiber is able to take to expose to the sun and rain, and Long-Time Service can not damage in corrosion.Because with low cost, plug-in type connect, maintenance maintenance is changed convenient.Four, there is not electrical connection between each photovoltaic module in photovoltaic plant, while polymer optical fiber communication, also successfully isolated each photovoltaic module, improve the high voltage safety of photovoltaic plant.
The second, the utility model have employed copper-manganese sampler in photovoltaic component DC current sampling, can carry out total current metering to the direct current measurement that photovoltaic module produces.
Three, the utility model circuit design is rationally compact, and each element makes full use of, and same microprocessor both can processing controls electric energy metrical and assembly property parameter signal, and meanwhile, this microprocessor can also control optical transceiver, realizes transmitting-receiving communication function.
Four, the utility model adds switching over module mechanism in header box, the adjustable quantity being linked into the photovoltaic module of header box current input terminal, thus effectively stablizes the output voltage values of busbar rectilinear generatrix.
Accompanying drawing explanation
Fig. 1 is that the utility model Intelligent wiring box is formed and theory diagram.
Fig. 2 is that the utility model header box is formed and theory diagram.
Fig. 3 is that the utility model is formed and theory diagram with Switch Control device header box.
In above accompanying drawing, 1 is photovoltaic module, 2 is Intelligent wiring boxes, 3 is header boxs, 20 is Intelligent wiring box input terminals, 21 is bypass diodes, 22 is power circuits, 23 is voltage sampling circuits, 24 is current sampling circuits, 25 is electrical energy parameter treatment circuits, 26 is DC/DC translation circuits, 27 is microprocessors, 28 is optical transceivers, 29 is faulty indication, 30 is Intelligent wiring box lead-out terminals, 31 is power circuits, 32 is radio communication circuits, 33 is concentrator (with optical transceivers), 34 is microprocessors, 35 is Switch Control devices, 36 is electrical energy parameter treatment circuits, 37 is current-voltage sampling circuits, 38 is current sensors, 39 is header box electrical energy inputs, 40 is header box DC bus lead-out terminals.
Embodiment
Embodiment one:
In the present embodiment, each photovoltaic module installs an Intelligent wiring box, and Intelligent wiring box composition and circuit connect as shown in Figure 1.
Between the both positive and negative polarity of photovoltaic module 1, cross-over connection has bypass diode 21, after photovoltaic module both positive and negative polarity thereto input terminal 20, positive pole is connected to the positive terminal 30 of output through the DC/DC translation circuit 26 controlled by microprocessor (MCU) 27, and negative pole is connected to negative pole output wiring terminal after over-current sensor 24.The input voltage of photovoltaic module 1 is converted to the voltage be applicable to for whole junction box circuit work by power circuit 22, voltage sampling circuit 23 sends after the voltage sample process of photovoltaic module into electrical energy parameter treatment circuit 25, current sampling circuit 24 sends after the sampling of the output current signal of photovoltaic module into electrical energy parameter treatment circuit 25, electrical energy parameter treatment circuit 25 will be converted to digital signal after signal transacting and gives microprocessor processes 27, and electrical energy parameter treatment circuit 25 can process the signal such as voltage, electric current, power, electric flux of photovoltaic module.These parameters can be sent to plastic fiber by optical transceiver 28 by microprocessor 27, and the light signal sent by rear end equally also can send microprocessor 27 to through optical transceiver 28.According to the inspection policies preset, microprocessor 27 can judge whether photovoltaic module work breaks down.If break down, faulty indication 29 grade can light-emitting caution.The voltage transformation that DC/DC translation circuit 26 can export photovoltaic module is as required system required voltage, when special requirement, microprocessor 27 can the startup of control DC/DC translation circuit 26 and cut out, also can make DC/DC translation circuit 26 directly conducting, according to system voltage photovoltaic module voltage transformation can be become and the voltage of system matches.
In the present embodiment, a photovoltaic module and an Intelligent wiring box form a basic power supply unit, 20 basic power supply units form a power supply and form a team, same power supply form a team in each power supply unit electric energy output end head and the tail serial connection, be connected to a pair electrical energy inputs of header box again, same power supply form a team in each Intelligent wiring box be provided with two single core optical transceivers, can be that light path is docked with two plastic fibers respectively, this form a team in the plastic fiber of 20 Intelligent wiring boxes be also head and the tail serial connections, form a ring-shaped light signal and communication link.Have how many power supplies to form a team and just have how many ring-shaped light signal and communication links, two plastic fiber ends of each light signal ring-type communication link dock with the concentrator optical transceiver in header box.When the photovoltaic module of some basic power supply units occurs open circuit due to certain cell piece, the bypass diode 21 of reversal connection in the Intelligent wiring box be connected with this photovoltaic module can conducting, and then the power supply ensureing to comprise this photovoltaic module path of having formed a team can continue to power.
The composition structure of the present embodiment header box as shown in Figure 2.The electric energy output end that each pair of electrical energy inputs 30 of header box is formed a team with each power supply is respectively connected, and exports inverter to after being confluxed by DC bus 40.Concentrator 33 in header box delivers to microprocessor 34 after the light signal of each ring-type communication link is transformed into the signal of telecommunication, microprocessor 34 also receives and processes the electrical energy parameter from electrical energy parameter treatment circuit 36, reflect fluctuation and the situation of change of header box direct current bus bar stream voltage these electrical energy parameter dynamic realtime, microprocessor 34 is the intelligent kernel parts in header box, microprocessor 34 is to so after the information analysis process that receives, control signal is sent again to radio communication circuit 32, the work working order of this header box is sent to photovoltaic plant management system.
Embodiment two:
The difference of the present embodiment and embodiment one is, adds Switch Control device 35, as shown in Figure 3 in header box.
Actuator in Switch Control device 35 under microprocessor 34 instruction controls, can change each pair of electrical energy inputs 39 access power form a team in the quantity of basic power supply unit.
As, if having ten power supplies to form a team access this header box, Switch Control device 35 is exported by header box electric energy output end after these ten power supplies being formed a team and being connected in series between two.When illumination is not enough, respectively power supply is formed a team, and output voltage meeting is obvious to be reduced, and does output after being connected in series again, can improve the voltage of header box electric energy output end, the normal use of guarantee its rear end power consumption equipment or device by each power supply being formed a team.
And for example, ten power supplies form a team in each power supply form a team to be connected in series by 20 basic power supply units and form, under illumination is eligible, the electric energy magnitude of voltage that these ten power supplies are formed a team exported can meet the requirements, and when illumination is not enough, Switch Control device 35 power supply that other ten are made up of two basic power supply units to be formed a team be concatenated into respectively ten be made up of 20 basic power supply units form a team, formed and formed a team by ten new power supplies be connected in series by 22 basic power supply units, new power supply is formed a team and can be improved header box DC bus electric energy magnitude of voltage.
Claims (7)
1. the Intelligent photovoltaic electricity generation system based on plastic fiber communication, its formation includes photovoltaic module, Intelligent wiring box, header box, inverter, each photovoltaic module is all connected with an Intelligent wiring box, it is characterized in that: the circuit formation of described Intelligent wiring box includes power circuit, bypass circuit, voltage sampling circuit, current sampling circuit, electrical energy parameter treatment circuit, DC/DC translation circuit, microprocessor, optical communication interface circuit, failure indicating circuit, the positive and negative extreme and Intelligent wiring box positive-negative input end sub-connection of photovoltaic module, between Intelligent wiring box positive-negative input end, reverse cross-over connection has bypass diode, input positive terminal is connected to output cathode terminal through the DC/DC translation circuit controlled by Micro-processor MCV, input negative terminal is connected to output negative pole terminal after over-current sensor, power circuit output end and voltage sampling circuit signal input part are connected across between input positive and negative terminals, voltage sampling circuit signal output part is connected with electrical energy parameter treatment circuit signal input part, current sampling circuit signal output part is connected with electrical energy parameter treatment circuit signal input part, electrical energy parameter treatment circuit signal output part is connected with microprocessor signals input, DC/DC translation circuit controlled end is connected with microprocessor-based control end, microprocessor is connected with the controlled terminal of failure indicating circuit, microprocessor is also connected with a Signal transmissions end of optical communication interface circuit, another Signal transmissions end of optical communication interface circuit is connected with the optical communication interface circuit Signal transmissions end in other Intelligent wiring box outside this Intelligent wiring box or concentrator or header box by optical fiber.
2. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 1, it is characterized in that: described optical communication interface circuit is made up of single core optical transceiver and plastic fiber, plastic fiber and optical transceiver are that light path is docked, optical transceiver or change the signal of telecommunication into light signal, another place is transferred to through plastic fiber, restored into the signal of telecommunication by optical transceiver, or the light signal that plastic fiber transmission comes is transformed into the signal of telecommunication.
3. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 1, it is characterized in that: described optical communication interface circuit is made up of twin-core optical transceiver and twin-core plastic fiber, twin-core optical transceiver and twin-core plastic fiber are that light path is docked, the signal of telecommunication, while a certain plastic fiber light signal is transformed into the signal of telecommunication, can also be transformed into light signal and transmits through another root plastic fiber by twin-core optical transceiver.
4. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 1, is characterized in that: the current sensor in described current sampling circuit adopts copper-manganese sampler or Hall sampler.
5. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 1 or 2 or 3 or 4, it is characterized in that: a photovoltaic module and an Intelligent wiring box form a basic power supply unit, several basic power supply units form a power supply and form a team, same power supply form a team in each power supply unit electric energy output end head and the tail serial connection, be connected to an electrical energy inputs of header box again, same power supply form a team in each Intelligent wiring box optical communication interface circuit in be provided with two single core optical transceivers, can core plastic fiber single with two be that light path is docked respectively, this power supply form a team in two single core plastic fibers of each Intelligent wiring box be also head and the tail serial connections, form a ring-shaped light signal and communication link, form a team two plastic fiber ends of optical signal communication link of this power supply are directly that light path is docked with the optical transceiver in concentrator or header box.
6. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 1, it is characterized in that: the composition of described header box includes, microprocessor, electrical energy parameter treatment circuit, current-voltage sampling circuit, with the concentrator of optical communication interface circuit, radio communication circuit, DC bus, power circuit and switching device, the voltage signal inputs of current-voltage sampling circuit is connected across between DC bus two outputs, the current signal input of current sampling circuit is connected across current sensor two ends, the signal output part of current-voltage sampling circuit is connected with the signal input part of electrical energy parameter treatment circuit, the signal output part of electrical energy parameter treatment circuit receives microprocessor signals input, microprocessor is also connected with the controlled end of radio communication circuit with optical communication interface circuit respectively, microprocessor is also connected with Switch Control device, Switch Control device has some to electrical energy inputs, a photovoltaic module and an Intelligent wiring box form a basic power supply unit, a pair electrical energy inputs of Switch Control device is connected to after the electric energy output end serial connection of several basic power supply units.
7. a kind of Intelligent photovoltaic electricity generation system based on plastic fiber communication according to claim 6, it is characterized in that: described Switch Control device can change each pair of electrical energy inputs access the quantity of basic power supply unit, in Switch Control device, maybe the power supply unit being linked into two pairs of electrical energy inputs is connected in series again, or by certain a pair, a few power supply unit to electrical energy inputs is connected in series with power supply unit that other electrical energy inputs accesses respectively.
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| CN201520740175.6U CN204967752U (en) | 2015-09-23 | 2015-09-23 | Intelligence photovoltaic power generation system based on plastics optical fiber communication |
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| CN201520740175.6U CN204967752U (en) | 2015-09-23 | 2015-09-23 | Intelligence photovoltaic power generation system based on plastics optical fiber communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577112A (en) * | 2016-02-23 | 2016-05-11 | 南京苗苗智能科技有限公司 | Intelligent solar photovoltaic junction box based on Internet of Things |
| CN107302343A (en) * | 2017-06-22 | 2017-10-27 | 广州市瑞峰电力科技有限公司 | Photovoltaic power generation plate |
| CN110492759A (en) * | 2019-08-08 | 2019-11-22 | 北京王府科技有限公司 | A kind of multi-functional 86 box line arrangement |
| CN110504649A (en) * | 2019-08-08 | 2019-11-26 | 北京王府科技有限公司 | A kind of multi-functional 86 box |
| CN110601559A (en) * | 2019-08-08 | 2019-12-20 | 北京王府科技有限公司 | Novel 86 boxes |
-
2015
- 2015-09-23 CN CN201520740175.6U patent/CN204967752U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105577112A (en) * | 2016-02-23 | 2016-05-11 | 南京苗苗智能科技有限公司 | Intelligent solar photovoltaic junction box based on Internet of Things |
| CN107302343A (en) * | 2017-06-22 | 2017-10-27 | 广州市瑞峰电力科技有限公司 | Photovoltaic power generation plate |
| CN110492759A (en) * | 2019-08-08 | 2019-11-22 | 北京王府科技有限公司 | A kind of multi-functional 86 box line arrangement |
| CN110504649A (en) * | 2019-08-08 | 2019-11-26 | 北京王府科技有限公司 | A kind of multi-functional 86 box |
| CN110601559A (en) * | 2019-08-08 | 2019-12-20 | 北京王府科技有限公司 | Novel 86 boxes |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20210923 |
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| CF01 | Termination of patent right due to non-payment of annual fee |