CN110417348A - Solar assembly junction box, solar energy system and solar components control method - Google Patents
Solar assembly junction box, solar energy system and solar components control method Download PDFInfo
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- CN110417348A CN110417348A CN201810402227.7A CN201810402227A CN110417348A CN 110417348 A CN110417348 A CN 110417348A CN 201810402227 A CN201810402227 A CN 201810402227A CN 110417348 A CN110417348 A CN 110417348A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000001514 detection method Methods 0.000 claims abstract description 114
- 238000004891 communication Methods 0.000 claims description 41
- 238000012360 testing method Methods 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 230000002159 abnormal effect Effects 0.000 description 15
- 230000006855 networking Effects 0.000 description 11
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000013084 building-integrated photovoltaic technology Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 210000003660 reticulum Anatomy 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
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Classifications
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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
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
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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
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
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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 present embodiments relate to a kind of solar assembly junction box, solar energy system and solar components control method, solar assembly junction box includes: state detection module, controller and power module；State detection module connects controller, and controller connects power module；The state of state detection module detection solar components, and state-detection data are sent to controller, controller obtains state-detection data, and shutdown control signal is generated in state-detection data exception and is sent to power module, after power module receives shutdown control signal, adjustment output voltage is in preset low voltage range.The state that the embodiment of the present invention passes through detection solar components, it determines and the output voltage of power module is adjusted to low voltage range when needing to turn off solar components, so that the output voltage of solar assembly junction box is in low voltage range, the safe shutdown for realizing solar components, guarantees the safety of personnel.
Description
Technical field
The present embodiments relate to a kind of solar assembly junction box, solar energy system and solar components control methods.
Background technique
With the development of distributed generation system, use and solar building integrated (Building at family
Integrated PV, BIPV) etc. application increase, therefore, to wanting for the safety and reliability of distributed generation system
Ask higher and higher, and the solar assembly junction box with turn-off function can turn off in the abnormal environments such as fire and natural calamity
Solar components, to improve the safety and reliability of distributed generation system.
Currently, the solar assembly junction box with turn-off function does not have specific design standard, different suppliers are provided
The control equipment such as solar assembly junction box and gateway backstage between mechanics of communication means it is different, Fig. 1 shows one kind too
Positive energy system, the communication of solar energy system are divided into four levels: terminal box layer, gateway layer, solar controller layer and server
Layer, terminal box communicated wirelessly by 2.4G frequency range with gateway, and a gateway can access a terminal boxes up to a hundred, gateway with connect
The distance of wire box is within 20 to 30 meters.It is communicated wirelessly between gateway and solar controller using 433M frequency range,
One gateway can access at least ten relaying, and communication distance is within a km.Solar controller and solar energy server
It is communicated, can also be communicated using wireless communication modes such as 4G by Ethernet.
Solar energy system shown in FIG. 1 can by thousands of a solar components groups to a solar energy server,
But the solar assembly junction box with turn-off function on the market is designed primarily directed to crystal silicon component at present, due to
The open-circuit voltage of crystal silicon component generally in 30V between 50V, and the open-circuit voltage of film assembly in 60V between 120V, because
This, the solar assembly junction box with turn-off function can not be used directly on film assembly.
The description of the above-mentioned discovery procedure to problem, is only used to facilitate the understanding of the technical scheme, and does not represent and holds
Recognizing above content is the prior art.
Summary of the invention
Of the existing technology in order to solve the problems, such as, at least one embodiment of the present invention provides a kind of solar components
Terminal box, solar energy system and solar components control method.
In a first aspect, the embodiment of the present invention proposes a kind of solar assembly junction box, comprising:
State detection module, controller and power module；
The state detection module connects the controller, and the controller connects the power module；
The state of the state detection module detection solar components, and state-detection data are sent to the control
Device, the controller obtain the state-detection data, and shutdown control signal is generated in the state-detection data exception
And it is sent to the power module, after the power module receives the shutdown control signal, adjustment output voltage is in pre-
If low voltage range.
Optionally, the controller obtains the state-detection data, and generates in the state-detection data exception
Shutdown control signal, comprising:
The controller obtains the state-detection data, between the state-detection data and preset state threshold value
Size, if the state-detection data be greater than preset state threshold value, generate shutdown control signal.
Optionally, the solar assembly junction box further include: wireless communication module；
The wireless communication module connects the controller；
After the controller receives remote shutdown control instruction by the wireless communication module, the shutdown control is generated
Signal is simultaneously sent to the power module, after the power module receives the shutdown control signal, adjusts at output voltage
In the low voltage range.
Optionally, the state detection module includes temperature sensing circuit, voltage detecting circuit, in current detection circuit
It is one or more；
The temperature data that the temperature sensing circuit will test is sent to the controller, and the controller obtains the temperature
Degree evidence, and shutdown control signal is generated in the temperature data exception, shutdown control signal is sent to the power supply
Module；
The voltage of voltage detecting circuit detection solar components output, and the voltage data that will test be sent to it is described
Controller, the controller obtain the voltage data, and shutdown control signal is generated in the voltage data exception, by this
Shutdown control signal is sent to the power module；
The electric current of current detection circuit detection solar components output, and the current data that will test be sent to it is described
Controller, the controller obtain the current data, and shutdown control signal is generated in the current data exception, by this
Shutdown control signal is sent to the power module.
Optionally, the controller obtains the temperature data, and shutdown control is generated in the temperature data exception
Signal, comprising: the controller obtains the temperature data, big between the temperature data and preset temperature threshold
It is small, if the temperature data is greater than the preset temperature threshold, generate shutdown control signal；
The controller obtains the voltage data, and shutdown control signal, packet are generated in the voltage data exception
Include: the controller obtains the voltage data, the size between the voltage data and predetermined voltage threshold, if institute
Voltage data is stated greater than the predetermined voltage threshold, generates shutdown control signal；
The controller obtains the current data, and shutdown control signal, packet are generated in the current data exception
Include: the controller obtains the current data, the size between the current data and predetermined current threshold, if institute
Current data is stated greater than the predetermined current threshold, generates shutdown control signal.
Optionally, the solar assembly junction box further include: power supply module；
The power supply module is powered for obtaining the electric energy of solar components output, and to the controller.
Optionally, the low voltage range is 0V to 24V.
Second aspect, the embodiment of the present invention also propose a kind of solar energy system, comprising:
At least one solar controller and multiple solar assembly junction boxes as described in relation to the first aspect；Different institutes
It states solar assembly junction box and connects different solar components；
The solar assembly junction box connects the solar controller, and each solar control by wired mode
The number of the solar assembly junction box of device connection is no more than the corresponding predetermined number of the wired mode；Or,
The solar assembly junction box wirelessly connects the solar controller, and each solar control
The number of the solar assembly junction box of device connection is no more than the corresponding predetermined number of the wireless mode.
The third aspect, the embodiment of the present invention also propose a kind of solar energy system, comprising:
At least one solar controller and multiple gateways；Each gateway passes through wired mode and/or wireless parties
Formula connects the solar controller；
Each gateway connects multiple solar assembly junction boxes as described in relation to the first aspect by wired mode, different
The solar assembly junction box connect different solar components, and solar components of each gateway connection
The number of terminal box is no more than the wired connection capacity of the gateway；Or,
Each gateway wirelessly connects multiple solar assembly junction boxes as described in relation to the first aspect, different
The solar assembly junction box connect different solar components, and solar components of each gateway connection
The number of terminal box is no more than the wireless connection capability of the gateway.
Fourth aspect, the embodiment of the present invention also propose a kind of solar components control method, comprising:
Obtaining step: the state-detection data of solar components are obtained；
It generates shutdown control signals step: generating shutdown control signal in the state-detection data exception；
Set-up procedure: being sent to power module for shutdown control signal so that the power module receive it is described
After shutdown control signal, adjustment output voltage is in preset low voltage range.
Optionally, before the generation shutdown control signals step, the method also includes:
Comparison step: the size between the state-detection data and preset state threshold value, if the state is examined
Measured data is greater than preset state threshold value, the state-detection data exception；
Correspondingly, if generation shutdown control signals step includes: that the state-detection data are greater than preset state
Threshold value generates shutdown control signal.
Optionally, the method also includes:
Receiving step: wireless receiving remote shutdown control instruction；
The generation shutdown control signals step further include: after wireless receiving to remote shutdown control instruction, generate institute
State shutdown control signal.
Optionally, the generation shutdown control signals step includes:
The state-detection data are temperature data, and shutdown control signal is generated in the temperature data exception；
And/or
The state-detection data are the voltage data of solar components output, generate and close in the voltage data exception
Disconnected control signal；
And/or
The state-detection data are the current data of solar components output, generate and close in the current data exception
Disconnected control signal.
Optionally, the comparison step and generation shutdown control signals step include:
The state-detection data are temperature data, the size between the temperature data and preset temperature threshold；
If the temperature data is greater than the preset temperature threshold, shutdown control signal is generated；
And/or
The state-detection data are the voltage data of solar components output, the voltage data and predeterminated voltage
Size between threshold value；If the voltage data is greater than the predetermined voltage threshold, shutdown control signal is generated；
And/or
The state-detection data are the current data of solar components output, the current data and predetermined current
Size between threshold value；If the current data is greater than the predetermined current threshold, shutdown control signal is generated.
Optionally, the low voltage range is 0V to 24V.
As it can be seen that detecting solar components at least one embodiment of the embodiment of the present invention by state detection module and connecing
The state of wire box, controller can determine the need for shutdown solar components according to state, and need to turn off solar energy in determination
Shutdown control signal is sent to power module when component, control power module adjustment output voltage is in low voltage range, thus
So that the output voltage of solar assembly junction box is in low voltage range, the safe shutdown of solar components, guarantor are realized
The safety of member.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention
Example is applied, it for those of ordinary skill in the art, without any creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is a kind of structural schematic diagram of solar energy system involved in background technique；
Fig. 2 is a kind of structural block diagram of solar assembly junction box provided in an embodiment of the present invention；
Fig. 3 is the structural block diagram of another solar assembly junction box provided in an embodiment of the present invention；
Fig. 4 is the structural block diagram of another solar assembly junction box provided in an embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of solar energy system provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of another solar energy system provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of another solar energy system provided in an embodiment of the present invention；
Fig. 8 is a kind of solar components control method flow chart provided in an embodiment of the present invention；
Fig. 9 is another solar components control method flow chart provided in an embodiment of the present invention；
Figure 10 is another solar components control method flow chart provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In a first aspect, as shown in Fig. 2, the embodiment of the present invention discloses a kind of solar assembly junction box, for connecting the sun
Energy component 5 simultaneously exports electric energy, and solar components 5 include the film assembly applied to BIPV occasion, and solar assembly junction box can
It include: mounting shell 1, state detection module 2, controller 3 and power module 4.
In the present embodiment, state detection module 2, controller 3 and power module 4 are installed in mounting shell 1；Mounting shell
There are two input terminal and two output ends for 1 tool；Two output ends of two input terminals connection solar components 5 of mounting shell 1；
Two output ends of two output ends connection power module 4 of mounting shell 1, two output ends of mounting shell 1 are for exporting electric energy；
State detection module 2 connects controller 3, and controller 3 connects power module 4.
In the present embodiment, power module 4 is, for example, DC/DC power module.
In the present embodiment, two output ends of mounting shell 1 can connect inverter 6, and then inverter 6 is made to export alternating current.
The signal flow or data flow of solar assembly junction box disclosed in the present embodiment are described as follows:
State detection module 2 detects the state of solar components 5, and state-detection data are sent to controller 3, controls
Device 3 obtains state-detection data, and generates shutdown control signal in state-detection data exception and be sent to power module 4,
After power module 4 receives shutdown control signal, adjustment output voltage is in preset low voltage range.
In the present embodiment, the state of solar assembly junction box is specially the relevant shape of solar assembly junction box work
State, including temperature, electric current and/or voltage etc..
In the present embodiment, state detection module 2 detects the state of solar components 5, and the state of solar components 5 includes temperature
Degree, electric current and/or voltage etc..The mountable back side in solar components 5 of solar assembly junction box.
In the present embodiment, after controller 3 obtains state-detection data, judge whether state-detection data are abnormal, the side of judgement
Formula for example compares the size between state-detection data and preset state threshold value, if state-detection data are greater than preset state threshold
Value determines state-detection data exception.Comparing function can be realized by comparing circuit.
In the present embodiment, preset state threshold value is critical value corresponding when solar components 5 work normally, state-detection
Data then indicate state-detection data exception beyond critical value.It, can be default by comparing after controller 3 obtains state-detection data
State threshold determines whether state-detection data are abnormal, and comparison circuit can be used to realize in the realization of comparison function, namely control
Comparison circuit is provided in device 3, comparison circuit belongs to mature technology, and this embodiment is not repeated.
In the present embodiment, after controller 3 obtains state-detection data, however, it is determined that state-detection data exception illustrates the sun
Can component 5 be in abnormal environment, abnormal environment such as fire, natural calamity or other damage the environment of solar components 5, then control
Device 3 processed generates shutdown control signal, to turn off solar components 5.
In the present embodiment, controller 3, which generates, turns off control signal, and the adjustment of shutdown control signal controllable power module 4 is certainly
The output voltage of body is in preset low voltage range namely power module 4 receives after turning off control signal, adjusts itself
Output voltage is in preset low voltage range.
In the present embodiment, shutdown control signal is, for example, PWM (Pulse Width Modulation, pulse width modulation)
Duty ratio configures signal, and PWM duty cycle configures signal controllable power module 4 and adjusts PWM duty cycle, to control the defeated of itself
Voltage is in preset low voltage range out.
In the present embodiment, preset low voltage range is, for example, 0V to 24V, belongs to human safety voltage, and PWM duty cycle is matched
The PWM duty cycle that confidence number is configured is in PWM duty cycle range corresponding to preset low voltage range.In concrete application
In, the duty ratio that PWM duty cycle configuration signal is configured is the corresponding PWM duty cycle of 0V.
As it can be seen that solar assembly junction box disclosed in the present embodiment, detects solar components 5 by state detection module 2
State, controller 3 can be determined the need for according to state shutdown solar components 5, and determination need to turn off solar energy group
Shutdown control signal is sent to power module 4 when part 5, control power module 4 adjusts output voltage and is in low voltage range, and by
In the output end of the output end connection solar assembly junction box of power module 4, therefore, the output electricity of solar assembly junction box
Pressure is in low voltage range, realizes the safe shutdown of solar components, guarantees the safety of personnel.
In a specific example, compared with solar assembly junction box shown in Fig. 2, solar energy group shown in Fig. 3
Part terminal box may also include wireless communication module 7.
In the present embodiment, wireless communication module 7 is mounted in mounting shell 1, and connects controller 3.
In the present embodiment, controller 3 after the reception of module 7 remote shutdown control instruction, generates shutdown control by wireless communication
Signal processed is simultaneously sent to power module 4, and after power module 4 receives shutdown control signal, adjustment output voltage is in preset
Low voltage range.
In the present embodiment, module 7 can be wirelessly connected controller 3 with solar controller by wireless communication, to control
Device 3 by wireless communication module 7 can wireless receiving solar controller send remote shutdown control instruction, the remote shutdown control
System instruction operates solar controller by professional and issues.
In the present embodiment, module 7 can also be with user terminal (User Equipment, UE) by wireless communication for controller 3
Be wirelessly connected, UE is, for example, smart phone, thus controller 3 by wireless communication module 7 can wireless receiving UE send it is long-range
Turn off control instruction.
In the present embodiment, controller 3 receives after remote shutdown control instruction or obtains state-detection data and described
Shutdown control signal can be all generated when state-detection data exception.
Each state detection circuit that state detection module 2 includes in Fig. 2, is described in detail below:
State detection module 2 includes temperature sensing circuit 21；Temperature sensing circuit 21 detects in solar assembly junction box
Temperature, and the temperature data that will test is sent to controller 3, controller 3 obtains temperature data, and raw in temperature data exception
Signal is controlled at shutdown, shutdown control signal is sent to power module 4；
And/or state detection module 2 includes voltage detecting circuit 22；Voltage detecting circuit 22 detects two of mounting shell 1
Voltage between input terminal is equivalent to the voltage that detection solar components 5 export, and the voltage data that will test is sent to control
Device 3, controller 3 obtain voltage data, and shutdown control signal is generated in voltage data exception, by shutdown control signal hair
Give power module 4；
And/or state detection module 2 includes current detection circuit 23；Any of the detection mounting shell 1 of current detection circuit 23
The electric current of input terminal is equivalent to the electric current that detection solar components 5 export, and the current data that will test is sent to controller 3,
Controller 3 obtains current data, and shutdown control signal is generated in current data exception, and shutdown control signal is sent to
Power module 4.
In the present embodiment, after controller 3 obtains temperature data, judge whether temperature data abnormal, judgment mode for example than
Compared with the size between temperature data and preset temperature threshold, if temperature data is greater than preset temperature threshold, temperature data is determined
It is abnormal.Comparing function can be realized by comparing circuit.
In the present embodiment, after controller 3 obtains voltage data, judge whether voltage data abnormal, judgment mode for example than
Compared with the size between voltage data and predetermined voltage threshold, if voltage data is greater than predetermined voltage threshold, voltage data is determined
It is abnormal.Comparing function can be realized by comparing circuit.
In the present embodiment, after controller 3 obtains current data, judge whether current data abnormal, judgment mode for example than
Compared with the size between current data and predetermined current threshold, if current data is greater than predetermined current threshold, Cutoff current data
It is abnormal.Comparing function can be realized by comparing circuit.
In the present embodiment, when state detection module 2 includes temperature sensing circuit 21, voltage detecting circuit 22 and current detecting
Circuit 23, controller 3 receive the voltage data that abnormal temperature data is abnormal, abnormal or the current data of exception and can all generate
Shutdown control signal.
In the present embodiment, preset temperature threshold, predetermined voltage threshold and predetermined current threshold are that solar components 5 are normal
Corresponding critical value when work then indicates that solar components 5 are abnormal beyond critical value, preset temperature threshold, predeterminated voltage threshold
Value and the specific value of predetermined current threshold determine that the present embodiment does not limit specific value according to the performance of solar components 5.
In the present embodiment, solar energy group is directly detected at the back side that temperature sensing circuit 21 may also be arranged on solar components 5
The temperature of part 5, temperature sensing circuit 21, which may also be arranged on, detects 5 institute of solar components in 5 surrounding preset range of solar components
The environment temperature at place.
In a specific example, compared with solar assembly junction box shown in Fig. 2, solar energy group shown in Fig. 4
Part terminal box may also include power supply module 8.
In the present embodiment, power supply module 8 is mounted in mounting shell 1；And power supply module 8, it is defeated for obtaining solar components 5
Electric energy out, and power to controller 3.
In the present embodiment, each state detection circuit that power supply module 8 can also include to state detection module 2 is powered.
Second aspect, the embodiment of the present invention also propose a kind of solar energy system, it may include:
At least one solar controller and multiple solar assembly junction boxes as described in relation to the first aspect；Different institutes
It states solar assembly junction box and connects different solar components namely solar assembly junction box and one a pair of solar components
It should connect.
In the present embodiment, solar energy system is double-layer structure, and lower layer is solar assembly junction box, and upper layer is solar energy control
Device processed.
In the present embodiment, solar assembly junction box connects solar controller, and each solar energy by wired mode
The number of the solar assembly junction box of controller connection is no more than the corresponding predetermined number of wired mode；Or,
Solar assembly junction box wirelessly connects solar controller, and the connection of each solar controller
The number of solar assembly junction box is no more than the corresponding predetermined number of wireless mode.
In the present embodiment, the function of solar controller can continue to use the function of solar controller in the prior art, this reality
Example is applied to repeat no more.
In the present embodiment, solar energy system is limited according to number of the different connection types to solar assembly junction box
System, specifically, when solar assembly junction box connects solar controller by wired mode, each solar controller connects
The number of the solar assembly junction box connect is no more than the corresponding predetermined number of wired mode；When solar assembly junction box passes through
When wireless mode connects solar controller, the number of the solar assembly junction box of each solar controller connection is no more than
The corresponding predetermined number of wireless mode.
In a specific example, different, the different wireless mode pair of the corresponding predetermined number of different wired modes
The predetermined number answered is different.
In the present embodiment, if wired mode is RS485 mode, the corresponding predetermined number of RS485 mode is, for example, 60
Any number within the scope of to 80, the specific value of the corresponding predetermined number of RS485 mode be limited to using RS485 mode into
The communication capacity of row communication, the corresponding predetermined number of RS485 mode can be determines according to actual conditions.
In the present embodiment, if wired mode is power carrier mode, the corresponding predetermined number of power carrier mode is for example
Specific value for any number within the scope of 20 to 50, the corresponding predetermined number of power carrier mode is limited to power line
Layout, power line can organize the number for the terminal box that series winding connects and the capacity of inverter, and wherein the capacity of inverter is inverter
The number of the solar assembly junction box of connection, the corresponding predetermined number of power carrier mode.
In the present embodiment, the corresponding predetermined number of wireless mode is, for example, 500, the corresponding predetermined number of wireless mode by
It is limited to the corresponding coverage area of different radio mode and wireless access quantity.
The third aspect, the embodiment of the present invention also propose a kind of solar energy system, it may include: at least one solar controller
And multiple gateways；Each gateway connects solar controller by wired mode and/or wireless mode.
In the present embodiment, solar energy system is three-decker, and lower layer is solar assembly junction box, and middle layer is gateway,
Upper layer is solar controller.
Each gateway connects multiple solar assembly junction boxes as described in relation to the first aspect by wired mode, it is different too
Positive energy assembly junction box connects different solar components, and the number of the solar assembly junction box of each gateway connection does not surpass
Cross the wired connection capacity of gateway；The wired connection capacity namely gateway of gateway are connect by the solar components that wired mode connects
The maximum number of wire box；Or,
Each gateway wirelessly connects multiple solar assembly junction boxes as described in relation to the first aspect, it is different too
Positive energy assembly junction box connects different solar components, and the number of the solar assembly junction box of each gateway connection does not surpass
Cross the wireless connection capability of gateway；The solar components that the wireless connection capability namely gateway of gateway wirelessly connect connect
The maximum number of wire box.
In a specific example, if wired mode be power carrier mode, connect same inverter 6 it is all too
Positive energy assembly junction box passes through power carrier mode (such as power line) and connects same gateway.
Below with reference to Fig. 5 to Fig. 7, solar energy system is specifically described.Solar energy system connects according to solar components
The number of wire box can be divided into double-layer structure and three-decker.
The number of solar assembly junction box is less than the corresponding predetermined number of wired mode, then using such as second aspect institute
Two layers of the cable architecture stated, such as solar assembly junction box pass through the wired modes such as RS485 or power carrier and solar energy control
Device communication processed；
The number of solar assembly junction box is less than the corresponding predetermined number of wireless mode, then using such as second aspect institute
Two layers of the wireless topology stated, such as solar assembly junction box pass through wireless modes and the solar controllers such as ZigBee or bluetooth
Communication.
The number of solar assembly junction box is more than the corresponding predetermined number of wired mode and is more than that wireless mode is corresponding
Predetermined number, then using the three-decker as described in the third aspect, the solar energy system of three-decker includes three kinds typical logical
Interrogate architectural schemes: wired solution, wireless solution and wired and radio hybrid plan.
Wired solution: RS485 or power carrier mode are used, specifically, as shown in figure 5, every 100 or so solar energy
Assembly junction box can also adjust the solar energy of gateway connection by one gateway of RS485 connection according to actual field environment
The quantity of assembly junction box.When being communicated using power carrier mode, the quantity of gateway can be configured according to the quantity of inverter,
A gateway can be used in all solar assembly junction boxes of one inverter connection, and gateway passes through the wired modes such as RS485 again
It is connect with solar controller, realizes the communication connection of entire solar energy system.
Wireless solution: in such a way that ZigBee adds LoRa or NB-IoT, specifically, as shown in fig. 6, solar components connect
Wire box forms a ZigBee-network as unit of tens to one hundred or so, and a gateway is arranged in each ZigBee-network,
Gateway is connected between LoRa module and ZigBee communication module by serial ports by LoRa module and ZigBee communication module composition,
Wherein ZigBee communication module can be cc2530 chip or cc2538 chip.Gateway is responsible for and each solar assembly junction box
Wireless telecommunications.There are two types of modes for LoRa module communication: the first uses LoRaWAN, is directed to electric communication network design
A set of communications protocol and system architecture, have the characteristics that small in size, low in energy consumption, long transmission distance, strong antijamming capability, can root
Antenna gain is adjusted according to practical situations.LoRaWAN is a typical star topology, in this network rack
In structure, solar controller is a transparent relaying, connects LoRa module and (solar energy is not shown in the figure in solar energy server
Solar energy server included by server layer in server, solar energy server namely Fig. 1), solar controller and the sun
Can server by standard IP (Internet protocol) connection, solar controller and LoRa intermodule with star net mode networking,
Multi-channel parallel reception may be implemented in solar controller, while handling multiple signals, all LoRa modules and solar energy control
It is two-way communication between device processed, increases network capacity.Second of networking by the way of point-to-point poll, but it is point-to-point
Polling efficiency will be far below stellate reticulum, and the benefit of the mode networking of point-to-point poll is in communications protocol and system aspects convenient for real
Existing, research and development and engineering cost are relatively low, are relatively specific in the project of solar assembly junction box negligible amounts, generally exist
It can the networking by the way of solar controller and the point-to-point poll of gateway less than in the project of 500 terminal boxes.
In addition, NB-IoT is one emerging technology of internet of things field, support low power consuming devices in the honeycomb number of wide area network
According to connection namely low-power consumption wide area network (LPWAN).NB-IoT is implemented in cellular network, can be deployed directly into GSM network, UMTS
Network or LTE network.NB-IoT module can directly substitute the function of LoRa module and solar controller in wireless solution,
Therefore the data communication between solar assembly junction box and server can be realized by two layers of wireless network.
The mode or power carrier that wired and radio hybrid plan, i.e. RS485 are combined with ZigBee are combined with LoRa
Mode, specifically, as shown in fig. 7, add the communication architecture of ZigBee communication module using RS485, wherein ZigBee communication mould
Block can be cc2530 chip or cc2538 chip, gateway shown in Fig. 7 further include in Fig. 7 unshowned serial ports turn RS485 and connect
Mouthful, convenient for the connection between RS485 and ZigBee communication module.Wired wired mode in conjunction with radio hybrid plan advantage
The different characteristics such as reliability and the convenience of wireless mode realize the optimal design of whole network performance.
In above scheme, when using the wired solution of RS485 or power carrier, there are technology maturation, the spies such as reliability height
Point.It is easy for construction when solar assembly junction box is with gateway networking using ZigBee wireless telecommunications scheme, it is not required to additionally increase line
Cable, can also select assembled scheme according to project reality, some projects need for beauty solar assembly junction box
It is separated with solar components, convenient for solar assembly junction box is hidden in the metal framework of solar components, this installation
Radio signal shielding can be needed the wired solution using RS485 or power carrier by mode, and cable is put in the frame neither
It influences beautiful and is able to achieve reliable communication.
In a particular application, the wired solution that RS485 or power carrier can be substituted using CAN bus, in embodiment
In in the networking scale mentioned and distance range CAN bus scheme above-mentioned communication function may be implemented, Major Difficulties exist
Disadvantage is shown slightly than RS485 in the realization of software and hardware cost.
In a particular application, ZigBee networking plan can be substituted using bluetooth mesh networking, this networking plan exists
Networking quantity and the ZigBee networking plan that power amplifier is all not added apart from aspect.In the wireless of gateway and central controller
The wireless communication technique of 433MHz can be used in communication, and this communication distance can achieve several hundred rice, and transmission rate generally will not
Lower than the transmission rate of LORA and NB-IoT, disadvantage is mainly higher than both wireless communication techniques in power consumption.
Fourth aspect, as shown in figure 8, a kind of solar components control method, the execution of this method is also disclosed in the present embodiment
Main body is the solar assembly junction box that is related to of first aspect, and this method may include step 801 to step 803:
801, the state-detection data of solar components are obtained；
802, shutdown control signal is generated in the state-detection data exception；
803, shutdown control signal is sent to power module, so that the power module receives the shutdown control
After signal processed, adjustment output voltage is in preset low voltage range.
Optionally, step 802 includes:
The state-detection data are temperature data, and shutdown control signal is generated in the temperature data exception；
And/or
The state-detection data are the voltage data of solar components output, generate and close in the voltage data exception
Disconnected control signal；
And/or
The state-detection data are the current data of solar components output, generate and close in the current data exception
Disconnected control signal.
In the present embodiment, when state-detection data include temperature data, voltage data and current data, as long as temperature number
According to, voltage data and current data any one exception, shutdown control signal can be all generated.
As shown in figure 9, a kind of solar components control method is also disclosed in the present embodiment, the executing subject of this method is first
The solar assembly junction box that aspect is related to, this method may include step 901 to step 904:
901, the state-detection data of solar components are obtained；
902, the size between the state-detection data and preset state threshold value；
If 903, the state-detection data are greater than preset state threshold value, shutdown control signal is generated；
904, shutdown control signal is sent to power module, so that the power module receives the shutdown control
After signal processed, adjustment output voltage is in preset low voltage range.
As shown in Figure 10, the present embodiment discloses another solar components control method, and this method is in addition to including shown in Fig. 9
Step 901 to step 904, further include step 1001 and step 1002:
1001, wireless receiving remote shutdown control instruction；
1002, it after wireless receiving to remote shutdown control instruction, generates the shutdown and controls signal.
In the present embodiment, after step 1002 generates the shutdown control signal, step 904 is executed.
In the present embodiment, power module receives any shutdown control signal that step 1002 and step 903 generate, and can all adjust
Whole output voltage is in the low voltage range.
Optionally, the size in step 902 between the state-detection data and preset state threshold value；And step
In 903 after the state-detection data are greater than preset state threshold value, shutdown control signal is generated, is implemented as walking as follows
It is rapid:
The state-detection data are temperature data, the size between the temperature data and preset temperature threshold；
If the temperature data is greater than the preset temperature threshold, shutdown control signal is generated；
And/or
The state-detection data are the voltage data of solar components output, the voltage data and predeterminated voltage
Size between threshold value；If the voltage data is greater than the predetermined voltage threshold, shutdown control signal is generated；
And/or
The state-detection data are the current data of solar components output, the current data and predetermined current
Size between threshold value；If the current data is greater than the predetermined current threshold, shutdown control signal is generated.
Optionally, the low voltage range is 0V to 24V.
Solar components control method disclosed in above embodiments by solar assembly junction box that first aspect is related to Lai
It executes, to avoid repeating, illustrates and effect is referring to each embodiment of first aspect, details are not described herein.
It should be noted that, in this document, term " includes " is intended to non-exclusive inclusion.The above is only the present invention
Preferred embodiment, be not intended to limit the scope of the invention, it is all to be made using description of the invention and accompanying drawing content
Equivalent structure or equivalent flow shift, be applied directly or indirectly in other relevant technical fields, and be similarly included in this
In the scope of patent protection of invention.
Claims (15)
1. a kind of solar assembly junction box characterized by comprising
State detection module, controller and power module；
The state detection module connects the controller, and the controller connects the power module；
The state of the state detection module detection solar components, and state-detection data are sent to the controller, institute
It states controller and obtains the state-detection data, and generate shutdown control signal in the state-detection data exception and send
To the power module, after the power module receives the shutdown control signal, adjustment output voltage is in preset low
Voltage range.
2. solar assembly junction box according to claim 1, which is characterized in that the controller obtains the state inspection
Measured data, and shutdown control signal is generated in the state-detection data exception, comprising:
The controller obtains the state-detection data, big between the state-detection data and preset state threshold value
It is small, if the state-detection data are greater than preset state threshold value, generate shutdown control signal.
3. solar assembly junction box according to claim 1 or 2, which is characterized in that
The solar assembly junction box further include: wireless communication module；
The wireless communication module connects the controller；
After the controller receives remote shutdown control instruction by the wireless communication module, generates the shutdown and control signal
And it is sent to the power module, after the power module receives the shutdown control signal, adjustment output voltage is in institute
State low voltage range.
4. solar assembly junction box according to any one of claims 1 to 3, which is characterized in that the state-detection mould
Block includes one or more of temperature sensing circuit, voltage detecting circuit, current detection circuit；
The temperature data that the temperature sensing circuit will test is sent to the controller, and the controller obtains the temperature number
According to, and shutdown control signal is generated in the temperature data exception, shutdown control signal is sent to the power module；
The voltage of the voltage detecting circuit detection solar components output, and the voltage data that will test is sent to the control
Device, the controller obtain the voltage data, and shutdown control signal is generated in the voltage data exception, by the shutdown
Control signal is sent to the power module；
The electric current of the current detection circuit detection solar components output, and the current data that will test is sent to the control
Device, the controller obtain the current data, and shutdown control signal is generated in the current data exception, by the shutdown
Control signal is sent to the power module.
5. solar assembly junction box according to claim 4, which is characterized in that
The controller obtains the temperature data, and shutdown control signal is generated in the temperature data exception, comprising: institute
It states controller and obtains the temperature data, the size between the temperature data and preset temperature threshold, if the temperature
Degree generates shutdown control signal according to the preset temperature threshold is greater than；
The controller obtains the voltage data, and shutdown control signal is generated in the voltage data exception, comprising: institute
It states controller and obtains the voltage data, the size between the voltage data and predetermined voltage threshold, if the electricity
It presses data to be greater than the predetermined voltage threshold, generates shutdown control signal；
The controller obtains the current data, and shutdown control signal is generated in the current data exception, comprising: institute
It states controller and obtains the current data, the size between the current data and predetermined current threshold, if the electricity
Flow data is greater than the predetermined current threshold, generates shutdown control signal.
6. solar assembly junction box according to any one of claims 1 to 5, which is characterized in that the solar components
Terminal box further include: power supply module；
The power supply module is powered for obtaining the electric energy of solar components output, and to the controller.
7. solar assembly junction box according to any one of claims 1 to 6, which is characterized in that the low voltage range
For 0V to 24V.
8. a kind of solar energy system characterized by comprising
At least one solar controller and multiple solar assembly junction boxes as described in any one of claim 1 to 7；No
The same solar assembly junction box connects different solar components；
The solar assembly junction box connects the solar controller by wired mode, and each solar controller connects
The number of the solar assembly junction box connect is no more than the corresponding predetermined number of the wired mode；Or,
The solar assembly junction box wirelessly connects the solar controller, and each solar controller connects
The number of the solar assembly junction box connect is no more than the corresponding predetermined number of the wireless mode.
9. a kind of solar energy system characterized by comprising
At least one solar controller and multiple gateways；Each gateway is connected by wired mode and/or wireless mode
Connect the solar controller；
Each gateway connects multiple solar components wiring as described in any one of claim 1 to 7 by wired mode
Box, the different solar assembly junction boxes connect different solar components, and each gateway connection it is described too
The number of positive energy assembly junction box is no more than the wired connection capacity of the gateway；Or,
Each gateway wirelessly connects multiple solar components wiring as described in any one of claim 1 to 7
Box, the different solar assembly junction boxes connect different solar components, and each gateway connection it is described too
The number of positive energy assembly junction box is no more than the wireless connection capability of the gateway.
10. a kind of solar components control method characterized by comprising
Obtaining step: the state-detection data of solar components are obtained；
It generates shutdown control signals step: generating shutdown control signal in the state-detection data exception；
Set-up procedure: shutdown control signal is sent to power module, so that the power module receives the shutdown
After controlling signal, adjustment output voltage is in preset low voltage range.
11. according to the method described in claim 10, it is characterized in that, the generation shutdown control signals step before, it is described
Method further include:
Comparison step: the size between the state-detection data and preset state threshold value, if the state-detection number
According to greater than preset state threshold value, the state-detection data exception；
Correspondingly, if generation shutdown control signals step includes: that the state-detection data are greater than preset state threshold value,
Generate shutdown control signal.
12. method described in 0 or 11 according to claim 1, which is characterized in that the method also includes:
Receiving step: wireless receiving remote shutdown control instruction；
The generation shutdown control signals step further include: after wireless receiving to remote shutdown control instruction, generate the pass
Disconnected control signal.
13. 0 to 12 described in any item methods according to claim 1, which is characterized in that the generation shutdown control signals step
Include:
The state-detection data are temperature data, and shutdown control signal is generated in the temperature data exception；
And/or
The state-detection data are the voltage data of solar components output, and shutdown control is generated in the voltage data exception
Signal processed；
And/or
The state-detection data are the current data of solar components output, and shutdown control is generated in the current data exception
Signal processed.
14. according to the method for claim 11, which is characterized in that the comparison step and generation shutdown control signal
Step includes:
The state-detection data are temperature data, the size between the temperature data and preset temperature threshold；If
The temperature data is greater than the preset temperature threshold, generates shutdown control signal；
And/or
The state-detection data are the voltage data of solar components output, the voltage data and predetermined voltage threshold
Between size；If the voltage data is greater than the predetermined voltage threshold, shutdown control signal is generated；
And/or
The state-detection data are the current data of solar components output, the current data and predetermined current threshold
Between size；If the current data is greater than the predetermined current threshold, shutdown control signal is generated.
15. method according to any one of claims 10 to 14, which is characterized in that the low voltage range is 0V to 24V.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810402227.7A CN110417348A (en) | 2018-04-28 | 2018-04-28 | Solar assembly junction box, solar energy system and solar components control method |
| PCT/CN2018/094313 WO2019205289A1 (en) | 2018-04-28 | 2018-07-03 | Solar component junction box, solar system and solar component control method |
| JP2018136829A JP2019193550A (en) | 2018-04-28 | 2018-07-20 | Solar module junction box, solar system and control method for solar module |
| EP18185651.9A EP3561987A1 (en) | 2018-04-28 | 2018-07-26 | Solar module junction box, solar system and control method for solar module |
| AU2018214063A AU2018214063A1 (en) | 2018-04-28 | 2018-08-08 | Solar module junction box, solar system and control method for solar module |
| US16/100,670 US20190334473A1 (en) | 2018-04-28 | 2018-08-10 | Solar module junction box, solar system and control method for solar module |
| KR1020180099324A KR20190125149A (en) | 2018-04-28 | 2018-08-24 | Solar module junction box, solar system and control method for solar module |
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|---|---|---|---|
| CN201810402227.7A CN110417348A (en) | 2018-04-28 | 2018-04-28 | Solar assembly junction box, solar energy system and solar components control method |
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| CN110417348A true CN110417348A (en) | 2019-11-05 |
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