CN208638329U - A kind of intelligent safety monitoring protection system for photovoltaic generating module - Google Patents
A kind of intelligent safety monitoring protection system for photovoltaic generating module Download PDFInfo
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- CN208638329U CN208638329U CN201820153238.1U CN201820153238U CN208638329U CN 208638329 U CN208638329 U CN 208638329U CN 201820153238 U CN201820153238 U CN 201820153238U CN 208638329 U CN208638329 U CN 208638329U
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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 discloses a kind of intelligent safety monitorings for photovoltaic generating module in field of photovoltaic power generation to protect system, including several monitoring units being correspondingly connected on photovoltaic module, monitoring unit includes: current/voltage sensor, safety governor, Safety actuator circuit, wireless communication module and security system power supply, current/voltage sensor, Safety actuator circuit is electrically connected on photovoltaic module, current/voltage sensor, Safety actuator circuit is electrically connected with safety governor, wireless communication module is electrically connected with safety governor, the utility model improves the operation stability and reliability of entire photovoltaic generating system, prevent simultaneously due to the security risk that photovoltaic circuit generates high pressure and gets an electric shock to specific personnel's bring on the scene, it can be used in solar power generation.
Description
Technical field
The utility model relates to a kind of photovoltaic generating modules to protect system, in particular to a kind of photovoltaic generating module protection system
System and method.
Background technique
In recent years, photovoltaic microgrid is quickly grown, and gird-connected inverter is usually required in photovoltaic microgrid system by photovoltaic
The tributary electrical power conversion that electricity generation system obtains is at AC power that can be grid-connected, and a series of photovoltaic modulies are in series and parallel at photovoltaic array
It is unified that DC terminal power supply is provided.
In actual moving process, due to shadow occlusion, dirt, the factors such as solar panel aging, the event of each photovoltaic module
Barrier damage can be brought to the safety of entire electricity generation system substantially to be influenced.It is entire in order to solve the problems, such as, it is general to be declined using distribution
Inverter increases switch photovoltaic module circuit function directly to realize.It is distributed the inverter that declines and directly works in each photovoltaic module
And it is substantially carried out the optimization of electric power output, for example carry out MPPT maximum power point tracking, so that each direct current photovoltaic module be made to generate most
Big energy.But such cost is very high, and without communication and information interchange between its each photovoltaic module circuit, it can not be reliable
Realization central controller switching signal to each photovoltaic module totally tansitive.Meanwhile photovoltaic circuit can generate higher electricity
Pressure, to the installation of system, maintenance and certain specific personnel on the scene such as firefighters bring the security threat of electric shock.
Utility model content
The purpose of the utility model is to provide a kind of intelligent safety monitorings for photovoltaic generating module to protect system, solves
Inconvenient and failure is communicated between each photovoltaic module in the prior art to be not easy to find to solve the problems, such as.
Purpose of the utility model is realized as follows: a kind of intelligent safety monitoring for photovoltaic generating module protects system
System, including several monitoring units being correspondingly connected on photovoltaic module, the monitoring unit includes:
Current/voltage sensor, the electric current and voltage condition of responsible real-time collecting photovoltaic module are simultaneously entered information into peace
Full controller；
Safety governor does further security control whether according to current or voltage extremely, if detected abnormal electric
Stream or voltage, safety governor can drive Safety actuator to make this photovoltaic module enter safe mode state, and isolation is abnormal electric
Stream or voltage；
Safety actuator circuit is instructed according to the different driving of safety governor, to close this photovoltaic module circuit, open
It opens this photovoltaic module circuit or makes it into security isolation state；
Wireless communication module, to realize the information interchange and transmitting of neighbouring monitoring unit；
Security system power supply is realized independently without power supply is interrupted using the power generation and rechargeable battery of this photovoltaic module, is mentioned
Needed for supplying monitoring cell operation；
The current/voltage sensor, Safety actuator circuit are electrically connected on photovoltaic module, current/voltage sensing
Device, Safety actuator circuit are electrically connected with safety governor, and the wireless communication module is electrically connected with safety governor.
Further include central controller as further limiting for the utility model, is communicated with monitoring unit realization, obtain prison
The data that control unit monitors, while transmittable control signal gives monitoring unit control photovoltaic module work.
Communication mode packet as further limiting for the utility model, between the central controller and monitoring unit
Include: central controller can directly be communicated with monitoring unit, can also first single monitoring unit be communicated, then by closing on
It is communicated between monitoring unit.
As further limiting for the utility model, the Safety actuator may include by-pass switch, blocking diode
Circuit, disconnect switch, short switch, according to different monitoring needs, safety governor is realized by Safety actuator circuit
Security control to photovoltaic module circuit.
As further limiting for the utility model, radio frequency sound wave or magnetic field is can be selected to carry out in the wireless communication module
Data communication, radio frequency sound wave can be used to warn the safe mode state of photovoltaic module, to prompt specific personnel on the scene.
Compared with prior art, the beneficial effects of the utility model are, the utility model can monitor photovoltaic power generation in real time
The safe condition of component, and each monitoring system is realized by wireless telecommunications according to each photovoltaic electrification component actual motion state
Between information exchange, thus carry out the operation of global optimization system, prevented to greatest extent since individual photovoltaic electrification components are prominent
Right failure and cause entire electricity generation system to work as machine, to improve the operation stability and reliability of entire photovoltaic generating system, together
When prevent to generate high pressure due to photovoltaic circuit and to the security risk of specific personnel's bring on the scene electric shock.The utility model is available
In solar power generation.
Detailed description of the invention
Fig. 1 is that intelligent safety monitoring protects system to connect cooperation schematic diagram with photovoltaic module in the utility model.
Fig. 2 is monitoring unit principle schematic diagram in the utility model.
Fig. 3 is Intelligent safety controller and Safety actuator circuit connection diagram in the utility model.
Fig. 4 is intelligent safety monitoring guard method flow chart in the utility model.
Fig. 5 is the communication means flow chart of central controller and monitoring unit in the utility model.
Fig. 6 is wireless communication module communication scheme in the utility model.
Fig. 7 is unprotected photovoltaic component system structural block diagram in the utility model.
Specific embodiment
The utility model is directed to security monitoring and protection to photovoltaic system electrification component, unprotected photovoltaic module
System structure diagram as shown in fig. 7, electricity-generating circuit has multiple photovoltaic group strings to be together in series unanimously to inverter for direct current, if
Single photovoltaic module breaks down, and can bring to system whole efficiency substantially influences, and fault location is difficult, and system is caused to be tieed up
It repairs at high cost.
The utility model proposes dedicated for photovoltaic electrification component grade security monitoring and protection system as shown in Figure 1,
Each photovoltaic module is realized real-time security monitoring and protection by a monitoring unit, and the failure of single photovoltaic module can be timely
It was found that will not influence system whole work efficiency with processing；In addition each monitoring unit can communicate with each other, and be used as road when necessary
Transmit Central control signals, such as switching signal step by step by device.
As shown in Fig. 2, the monitoring unit includes:
Current/voltage sensor is responsible for the electric current of real-time collecting photovoltaic module and voltage condition and is entered information into safety
Controller；
Safety governor according to current or voltage it is abnormal whether do further security control, if detecting abnormal current
Or voltage, safety governor can drive Safety actuator to make this photovoltaic module enter safe mode state, abnormal current are isolated
Or voltage.
As shown in figure 3, the Safety actuator may include by-pass switch, blocking diode circuit, disconnect switch, short circuit
Switch, according to different monitoring needs, safety governor realizes the peace to photovoltaic module circuit by Safety actuator circuit
Full control.It is instructed according to the different driving of safety governor, Safety actuator can close this photovoltaic module circuit, open this light
Assembly circuit is lied prostrate, or makes it into security isolation state.
Wireless communication module can use the radio frequency of low cost, magnetic field or sound wave to realize the letter of neighbouring intelligent safety system
Breath exchange and transmitting, such as central controller issue shutdown signal, this signal can pass through the mutual communication of intelligent safety system
Function and be transmitted to each photovoltaic module step by step.In addition, sound wave can also be used to the safe mode state of warning photovoltaic module,
To prompt specific personnel on the scene, such as daily maintenance or fire-disaster emergency personnel.
The power generation of this photovoltaic module of security system power utilization and rechargeable battery are independent without power supply is interrupted to realize, provide
To needed for intelligent safety system work.
The workflow of the utility model is executed as shown in figure 4, entirely controlling program by safety governor, specific steps
It is as follows:
1) in each execution period, the signal of safety governor monitoring sensor passes and the center received first is controlled
Signal；
If 2) do not find current or voltage exception, and shutdown signal is not controlled by center, then returns to upper one
Step starts the new execution period；
3) if it find that current or voltage exception or receive center control shutdown signal, safety governor driving safety drive
This photovoltaic module circuit is isolated in dynamic device, makes it into safe mode, and ensure this photovoltaic using the protection of corresponding circuit break and short circuit
Circuit will not generate the voltage or electric current for having threat to personnel；
4) and then safety governor is issued information warning using wireless communication device and this photovoltaic circuit is prompted to be in safe mould
Formula and closed state；
5) it is closed if it is being abnormal, then maintenance needs wait, and can be prompted using RF wireless communication and sound wave
Fault location, shutdown safe mode guarantee the danger that maintenance personal is not got an electric shock；
6) after repairing, if receiver receives center control open signal, safety governor carries out this photovoltaic first
It is without exception to confirm that electricity-generating circuit has, if there is exception, comes back to step 4) for assembly circuit partially self-checking；
If 7) self-checking circuit is without exception, safety governor is incorporated to it using Safety actuator this photovoltaic module is connected
Electricity generation system；
8) and then safety governor is issued prompt information using wireless communication device and this photovoltaic circuit is prompted to be in normal hair
Electricity condition.
The wireless communication module of intelligent safety monitoring protection system, communication mode can use radio in the utility model
Radio frequency, sound wave or magnetic field realize that communication distance can be very short, because each neighbouring monitoring unit can communicate with each other simultaneously
Transmitting center control information step by step.Fig. 6, which is shown monitoring unit and communicates with each other, exchanges the schematic diagram of information, shows two in figure
Kind communication mode, it is a kind of to utilize radio frequency, another kind magnetic field signal.It is mutual that each monitor protective system is shown in Fig. 5
Central control signals subroutine flow chart is transmitted, Central control signals can be open the light signal or the entirety for single component
The switching signal of group string system, each safety system that monitors after receiving the signal that neighbouring system is sent, first determine whether be
It is not the control signal for oneself, if it is does corresponding switch process, if it is for other system, then continues benefit
It is transmitted with wireless communication module to other system, until corresponding component system receives this control signal.Entirely execute center
Controlling signal process, specific step is as follows:
1) receive the control information that the system of closing on is sent；
2) judge whether it is Central control signals, continue to receive information if it is not, returning to previous step；
3) if it is Central control signals, further determine whether it is about this according to ID signal included in signal
The control signal of component；
4) if it is the control signal about this component, then this component, and benefit are opened or closed according to control signal content
The state of this component of signal prompt is provided with wireless communication device, while not transmitting this Central control signals further；
5) if not the control signal about this component, then neighbouring other groups are given using wireless communication device release information
Part is to continue to transmit this control signal, until target element receives this signal；
6) continue next execution period.
Intelligent safety monitoring protection system described in the utility model can use wifi and gateway also to realize PC, notebook
Or control of the smart phone to entire monitoring safety system, the signal of central controller is by gateway passes to each group
The monitoring unit of part.
The utility model is not limited to above-described embodiment, on the basis of technical solution disclosed by the utility model, this
For the technical staff in field according to disclosed technology contents, not needing creative labor can be special to some of which technology
Sign makes some replacements and deformation, these replacements and deformation are within the protection scope of the present utility model.
Claims (5)
1. a kind of intelligent safety monitoring for photovoltaic generating module protects system, which is characterized in that be correspondingly connected with including several
Monitoring unit on photovoltaic module, the monitoring unit include:
Current/voltage sensor is responsible for the electric current of real-time collecting photovoltaic module and voltage condition and enters information into and give safety control
Device processed；
Safety governor, according to current or voltage it is abnormal whether do further security control, if detect abnormal current or
Voltage, safety governor can drive Safety actuator to make this photovoltaic module enter safe mode state, be isolated abnormal current or
Voltage；
Safety actuator circuit is instructed according to the different driving of safety governor, to close this photovoltaic module circuit, open this
Photovoltaic module circuit makes it into security isolation state；
Wireless communication module, to realize the information interchange and transmitting of neighbouring monitoring unit；
Security system power supply is realized independently without power supply is interrupted using the power generation and rechargeable battery of this photovoltaic module, is supplied to
Needed for monitoring unit work；
The current/voltage sensor, Safety actuator circuit are electrically connected on photovoltaic module, current/voltage sensor, peace
Full drive circuit is electrically connected with safety governor, and the wireless communication module is electrically connected with safety governor.
2. a kind of intelligent safety monitoring for photovoltaic generating module according to claim 1 protects system, feature exists
In, further include central controller, is communicated with monitoring unit realization, the data that acquisition monitoring unit monitors, while transmittable control
Signal processed gives monitoring unit control photovoltaic module work.
3. a kind of intelligent safety monitoring for photovoltaic generating module according to claim 2 protects system, feature exists
In the communication mode between the central controller and monitoring unit includes: that central controller can directly be carried out with monitoring unit
Communication, can also first single monitoring unit be communicated, then be communicated between the monitoring unit by closing on.
4. a kind of intelligent safety monitoring for photovoltaic generating module according to any one of claim 1-3 protects system
System, which is characterized in that the Safety actuator may include by-pass switch, blocking diode circuit, disconnect switch, and short circuit is opened
It closes, according to different monitoring needs, safety governor realizes the safety to photovoltaic module circuit by Safety actuator circuit
Control.
5. a kind of intelligent safety monitoring for photovoltaic generating module according to any one of claim 1-3 protects system
System, which is characterized in that radio frequency sound wave or magnetic field can be selected to carry out data communication in the wireless communication module, and radio frequency sound wave is available
To warn the safe mode state of photovoltaic module, to prompt personnel on the scene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153238.1U CN208638329U (en) | 2018-01-30 | 2018-01-30 | A kind of intelligent safety monitoring protection system for photovoltaic generating module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820153238.1U CN208638329U (en) | 2018-01-30 | 2018-01-30 | A kind of intelligent safety monitoring protection system for photovoltaic generating module |
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| Publication Number | Publication Date |
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| CN208638329U true CN208638329U (en) | 2019-03-22 |
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| CN201820153238.1U Active CN208638329U (en) | 2018-01-30 | 2018-01-30 | A kind of intelligent safety monitoring protection system for photovoltaic generating module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023544A (en) * | 2018-01-30 | 2018-05-11 | 扬州华鼎电器有限公司 | A kind of intelligent safety monitoring for photovoltaic generating module protects system and method |
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2018
- 2018-01-30 CN CN201820153238.1U patent/CN208638329U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023544A (en) * | 2018-01-30 | 2018-05-11 | 扬州华鼎电器有限公司 | A kind of intelligent safety monitoring for photovoltaic generating module protects system and method |
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